A box contains 5 orange pencils, 8 yellow pencils, and 8 green pencils. Two pencils are selected, one at a time, with replacement.
There are a total of 21 pencils in the box.
The probability of selecting a green pencil on the first draw is 8/21, since there are 8 green pencils out of 21 total.
After replacing the first pencil, there are still 21 pencils in the box, including 8 yellow pencils.
The probability of selecting a yellow pencil on the second draw, given that a green pencil was selected first, is 8/21.
By the Multiplication Rule of Probability, we can multiply these probabilities together to find the probability of both events occurring
P(green and yellow) = P(green) × P(yellow|green)
P(green and yellow) = (8/21) × (8/21)
P(green and yellow) = 64/441
Therefore, the probability of selecting a green pencil first and a yellow pencil second is 64/441 or approximately 0.145.
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I really need help with this two please help to find x value and explain with reasons
In the first triangle, the angle x = 45°
In the second triangle, the angle y = 75°
In the second triangle, the angle x = 45°
How to find the angles in the triangles?To find the angles in the triangles, we proceed as folows.
a. In the first triangle, let the base angle to the left be p. We know that we have a parallelogram there.
Now, in the parallelogram,
102° + p = 180°sum of (interior angles of a parallelogram)
So, p = 180° - 102°
= 78°
Now, in the larger triangle,
x + p + 57° = 180° (sum of angles in a triangle)
Since p = 78°, we have that
x + 78° + 57° = 180°
x + 135° = 180°
x = 180° - 135°
= 45°
So, x = 45°
b. In figure 2, we have two isoceles triangles.
i. In the first triangle, both base angles are y.
So, y + y + 30° = 180° (sum of angles in atriangle)
2y + 30° = 180°
2y = 180° - 30°
2y = 150°
y = 150°/2
y = 75°
So, y = 75°
ii. In the second triangle also, both base angles are x and the other angle is a right angle which is 90°.
So, x + x + 90° = 180° (sum of angles in a triangle)
2x + 90° = 180°
2x = 180° - 90°
2x = 90°
x = 90°/2
x = 45°
So, x = 45°
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What is the opposite of 12 written in simplest terms?
Answer:
Step-by-step explanation:
It is -12.
The opposite of a positive number would be its negative.
A bag contains 18 small red, 19 small black, 13 large black, and 15 large red T-shirts, and nothing else. What is the least number of T-shirts Alpa must take out of the bag (without looking at them) to be absolutely sure of having at least two T-shirts among them that differ only by size or only by color?
Alpa must take out at least 19 T-shirts from the bag to be absolutely sure of having at least two T-shirts among them that differ only by size or only by color.
What is the Pigeonhole Principle?
The Pigeonhole Principle is a fundamental concept in combinatorics, which is a branch of mathematics that deals with counting and analyzing the properties of sets of objects. The principle states that if there are more pigeons than pigeonholes, then at least one pigeonhole must contain more than one pigeon.
We can solve this problem using the Pigeonhole Principle, which states that if n+1 objects are distributed among n boxes, then there is at least one box that contains two or more objects.
In this case, we want to be sure that we have at least two T-shirts that differ only by size or only by color.
So we need to find the minimum number of T-shirts that we must take out of the bag to guarantee this.
Let's consider the worst-case scenario, where we take out all the T-shirts that are of one size or one color.
If we take out all 18 small red T-shirts, we still need to take out at least one more T-shirt to be sure that we have at least two T-shirts that differ only by size or only by color (since we could still get a small black T-shirt).
Similarly, if we take out all 19 small black T-shirts, we still need to take out at least one more T-shirt to be sure that we have at least two T-shirts that differ only by size or only by color.
If we take out all 13 large black T-shirts, we still need to take out at least one more T-shirt to be sure that we have at least two T-shirts that differ only by size or only by color.
If we take out all 15 large red T-shirts, we still need to take out at least one more T-shirt to be sure that we have at least two T-shirts that differ only by size or only by color.
So we need to take out at least 19 T-shirts to be sure that we have at least two T-shirts that differ only by size or only by color. (We add one to the largest number of T-shirts of one color or size.)
Therefore, Alpa must take out at least 19 T-shirts from the bag to be absolutely sure of having at least two T-shirts among them that differ only by size or only by color.
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1. Supposed two coins are tossed, let P be the random variable representing the number of heads that occur. Find the values of the random variable P.
The possible values of the random variable P are 0, 1, or 2.
Describe Probability?A triangle is a polygon with three straight sides and three angles. It is one of the most fundamental shapes in geometry and is used extensively in mathematics, science, engineering, and art. The sum of the interior angles of a triangle is always 180 degrees, and the length of the sides and the size of the angles determine the shape of the triangle.
Triangles can be classified according to the length of their sides and the size of their angles. A scalene triangle has three unequal sides and three unequal angles. An isosceles triangle has two equal sides and two equal angles. A equilateral triangle has three equal sides and three equal angles, each measuring 60 degrees. Triangles can also be classified based on the size of their angles: an acute triangle has three acute angles (less than 90 degrees), a right triangle has one right angle (90 degrees), and an obtuse triangle has one obtuse angle (greater than 90 degrees).
Triangles have many important properties and applications in geometry. For example, the Pythagorean theorem is a fundamental relationship between the sides of a right triangle, which states that the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. The area of a triangle can be calculated using the formula 1/2 x base x height, and this formula can be used to solve many practical problems involving triangles.
The random variable P can take on four possible values, depending on how many heads are obtained:
P = 0 if both coins show tails.
P = 1 if exactly one of the coins shows heads.
P = 2 if both coins show heads.
Therefore, the possible values of the random variable P are 0, 1, or 2.
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8 6 points Create an equation that represents the relationship between x and y in the table. HAAA #1 X y 488.8 -1 -2 10 y = 8 Answer -8 0 8 X + 2 6 Answe 4 4
The equation is given as y = -x + 8
What is the purpose of equation?The purpose of an equation is to find the value of the variable that makes the equation true. Equations are used in various fields of mathematics and science to represent relationships between different quantities and to solve problems.
To create an equation that represents the relationship between x and y in the table, we need to first determine the pattern or trend in the data.
From the given data, we can see that as x increases by 2, y decreases by 2. This suggests that there is a linear relationship between x and y.
Using the two points (-2,10) and (0,8), we can find the slope:
m = (y2 - y1) / (x2 - x1) = (8 - 10) / (0 - (-2)) = -1
Now that we have the slope, we can use any point on the line to find the y-intercept. Let's use the point (0,8):
8 = (-1)(0) + b
b = 8
Therefore, the equation that represents the relationship between x and y in the table is:
y = -x + 8
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3 divide 2 5ths in a facrtion
When 3 is divided by 2/5 , the answer is 7.5
Let's compare our whole number and fraction so that we can see the issue we are attempting to tackle.
3 divided by 2/5
In this case, creating a new numerator just requires multiplying the numerator by the full number. After that, the original numerator becomes the new denominator.
3*5/2 = 15/2
Most people prefer to express results in decimals, and all you have to do to do so is divide the numerator by the denominator:
15/2 = 7.5
What is Numerator?The portion written above the horizontal line is referred to as the numerator. Example: 2/5 ,here 2 is numerator.
What is Decimal?A decimal number consists of both a whole number and a fractional number. The numerical value of complete and partially whole amounts is expressed using decimal numbers, which are in between integers.
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The complete question is
what happens when 3 divide by 2/5ths in a facrtion?
Find the measure of angle A.
A
8x + 2
10x - 4
38°
Answer:
8x + 2 + 10x - 4 + 38 = 180
18x + 36 = 180
18x = 144, so x = 8
Angle A measures 8(8) + 2 = 64 + 2 = 66°.
determine the area of the shaded region of a wooden patch in a circular park if the radius of the circle is: a. 8m b. 12
Answer:
22.88
Step-by-step explanation:
O/360 * π r squared
90/360 * 8 squared
1/4 * π (64)
4 π
Next:
b*h/2
8*12/2 = 48
8π - 48
8π = 25.12
48-25.12 = 22.88
Determine the exact surface area of the cylinder in terms of 3.14 pi radius 1 3/4 cm and 3 1/4cm height
Pls help me ASAP PLEASE
Answer: bellshaped
Step-by-step explanation:
A flagpole is 12 feet fall. Its shadow is
11 feet long. How far is it from the top of the flagpole to the end of its shadow?
The distance from the top of the flagpole to the end of its shadow is approximately 10.02 feet.
Explain the term distance
Distance refers to the measurement of the space between two objects or points. It is typically measured in units such as meters, kilometres, miles, or feet. The distance can be calculated using various methods, including using maps, GPS technology, or mathematical formulas.
According to the given information
We can set up the following proportion:
h / 12 = d / 11
We can cross-multiply to get:
h x 11 = 12 x d
Simplifying further:
d = (h x 11) / 12
We need to solve for d, so we need to find the value of h. Using the Pythagorean theorem, we can set up the following equation:
h² + d² = 12²
Substituting d = (h x 11) / 12, we get:
h² + ((h x 11) / 12)² = 12²
Simplifying:
h² + (121h²) / 144 = 144
Multiplying both sides by 144/265:
265h² / 144 = 144
Solving for h:
h² = (144 x 144) / 265
h = √(20736 / 265)
h = √(78.113)
Now we can substitute this value into our earlier equation to find d:
d = (√(78.113) x 11) / 12
d ≈ 10.02 feet
Therefore, the distance from the top of the flagpole to the end of its shadow is approximately 10.02 feet.
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i need help on problems 5-11
A scatter plot would be an appropriate data display to show the relationship between the speed of the vehicle and the number of accidents.
Why is a scatter plot appropriate for showing the relationship between speed and accidents?A scatter plot is a graphical representation of two continuous variables, where data points are plotted on a Cartesian coordinate system. The horizontal axis can represent the speed of the vehicle, while the vertical axis can represent the number of accidents. Each data point on the scatter plot would represent a specific observation of speed and the corresponding number of accidents.
By using a scatter plot, the EMT can visually display how changes in vehicle speed are related to the number of accidents. Scatter plots are effective for identifying trends, patterns, and outliers in data, making them suitable for illustrating the relationship between two continuous variables.
Answered question "An EMT wants to use a data display to show students the relationship between the speed of the vehicle and the number of accidents. Choose an appropriate data display for the situation. Explain your reasoning"
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For an investment of 26,245, a quarterly statement reports that the account is 26,292. The statement reports that for the same quarter, the rate of return of the investment was - 0.02%. Given the information regarding the investment quarterly activity, does the reported rate of return seem reasonable?
No. The reported return rate appears lower than expected.
Rate of returnsTo determine whether the reported rate of return is reasonable or not, we can calculate the expected rate of return based on the investment amount and the ending value of the account.
First, we need to calculate the total number of quarters that have elapsed between the initial investment and the current quarter. Let's assume that the investment has been held for n quarters.
Then, we can use the following formula to calculate the expected rate of return:
Expected rate of return = (Ending value / Initial investment) ^ (1/n) - 1
Plugging in the given values, we get:
n = 1 (since we are only given information for a single quarter)
Initial investment = 26,245
Ending value = 26,292
Expected rate of return = (26,292 / 26,245) ^ (1/1) - 1 = 0.18%
Comparing the expected rate of return of 0.18% with the reported rate of return of -0.02%, we can see that they are quite different. However, it's important to note that a single quarter's rate of return may not be indicative of the overall performance of the investment.
Therefore, while the reported rate of return seems lower than expected, we would need to consider the performance over a longer period of time to make a more informed assessment of the investment's performance.
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-4 is greater than of equal to x - 11
Using the inequality rule we know that 11 is greater than -11, (11 > -11).
What is an Inequality Equation?Mathematical expressions with inequalities are those in which the two sides are not equal.
Contrary to equations, we compare two values in inequality.
Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign.
Two expressions in inequality aren't always equal, which is denoted by the symbols >, <, ≤, or ≥.
So, let's say the inequality equation looks like this: A
Right now, A is valued at
Let p be used to representing the initial number.
P equals 11, so
Let q be used to representing the second number.
Q has a value of -11.
-11 and 11 are both numbers that are greater than zero.
Then, 11 > -11 ... (1)
A has a value of 11 > -11.
Therefore, using the inequality rule we know that 11 is greater than -11, (11 > -11).
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Correct question:
Is 11 greater than, equal to, or less than -11?
Find sin(B).
1. a/b
2. a/c
3. b/a
4. b/c
5. c/a
6. c/b
Answer:
4. b/c
Step-by-step explanation:
In a right-angled triangle with sides of lengths a, b, and c, where c is the hypotenuse (the side opposite the right angle), the sine of the angle opposite side b (angle B) is given by:
Sin theta : Opposite/hypotenuse
sin(B) = b/c
Therefore, the answer is 4. b/c
Select the correct answer.
These lines are perpendicular. Is this statement true or false?
y = - 2/5x + 4
y =5/2x-3
A.true
B. false
The statement "These lines are perpendicular" is true.
These lines are perpendicular. Is this statement true or false?To determine if the two lines are perpendicular, we need to check if the product of their slopes is -1. That is, if:
m1 × m2 = -1
where m1 is the slope of the first line and m2 is the slope of the second line.
The slopes of the two lines are:
m1 = -2/5
m2 = 5/2
So, m1 × m2 = (-2/5) × (5/2) = -1
Since the product of the slopes is -1, the two lines are perpendicular. Therefore, the statement "These lines are perpendicular" is true.
The correct answer is A. true.
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4. Which of the following angles is vertical to angle /DEB?
A
C
109°
E
D
B
The angle that is vertical to angle DEB is A.
What is a vertical angle?A vertical angle is an angle formed by two intersecting lines or planes that are perpendicular to each other. Specifically, it is the angle between two straight lines or planes that intersect each other and are perpendicular to the horizontal plane.
The measure of a vertical angle is always the same as the measure of the other vertical angle formed by the same two intersecting lines or planes. This is because vertical angles are always congruent, meaning they have the same size and shape. Vertical angles are commonly used in geometry and trigonometry to solve problems involving angles, lines, and plane.
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Assume that females have pulse rates that are normally distributed with a mean of 74.0 beats per minute and a standard deviation of 12.5 beats per minute. If 4 adult females are randomly selected, find the probability that they have pulse rates with a mean between 70 beats per minute and 78 beats per minute
Answer:
We can use the Central Limit Theorem to solve this problem since we are dealing with a sample size greater than 30. The distribution of sample means will be approximately normal with a mean of 74 beats per minute and a standard deviation of 12.5 / sqrt(4) = 6.25 beats per minute.
To find the probability that the mean pulse rate of 4 adult females is between 70 and 78 beats per minute, we need to calculate the z-scores for both values and then use a z-table or calculator to find the area under the normal curve between those two z-scores.
The z-score for 70 beats per minute is:
z = (70 - 74) / 6.25 = -0.64
The z-score for 78 beats per minute is:
z = (78 - 74) / 6.25 = 0.64
Using a standard normal distribution table or calculator, the area between these two z-scores is approximately 0.4115.
Therefore, the probability that 4 adult females have pulse rates with a mean between 70 and 78 beats per minute is approximately 0.4115 or 41.15%.
PLS HELP ASAP!!!!
Objective: find the possibility of meals you can order.
There are 480 possible meals that can be ordered from the given choices at the Mexican restaurant.
What is probability?It is a branch of mathematics that deals with quantifying uncertainty and randomness in various situations, such as games of chance, weather forecasting, and statistical analysis.
To find the number of possible meals that can be ordered, we need to multiply the number of choices in each category.
There are 4 choices for the first category (Burrito, Salad, Bowl, or Quesadilla).
There are 5 choices for the second category (Steak, Carnitas, Chicken, Barbacoa, or Sofritas).
There are 4 choices for the third category (White Rice, Brown Rice, Black Beans, or Pinto Beans).
There are 6 choices for the fourth category (Hard Tacos, Soft Tacos, Fajita Veggies, or any of the previous three with Salad, Rice, or Beans added).
Using the multiplication rule, we can find the total number of possible meals as:
4 x 5 x 4 x 6 = 480
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Consider the integral given below
Answer:
C ∫[-a,0] = -∫[0, a]
Step-by-step explanation:
You want an alternate representation of the given integral ...
∫(2x⁵ -5x³)dx
on the interval [-a, a].
Odd functionThe function f(x) = 2x⁵ -5x³ being integrated is an odd function. This means ...
f(-x) = -f(x) and f(0) = 0
Even functionAn even function is characterized by ...
f(-x) = f(x)
The integral F(x) of this odd function f(x) is an even function, so the parts either side of x=0 have the integrals ...
[tex]\displaystyle \int_{-a}^0{(2x^5-5x^3)}\,dx=F(0)-F(-a)=F(0) -F(a)[/tex]
[tex]\displaystyle \int_0^a{(2x^5-5x^3)}\,dx=F(a)-F(0)[/tex]
As we can see, these integrals are the opposites of each other, matching answer choice C.
__
Additional comment
The second attachment shows a numerical value for a=2.
A triangle is shown with its exterior angles. The interior angles of the triangle are angles 2, 3, 5. The exterior angle at angle 2 is angle 1. The exterior angle at angle 3 is angle 4. The exterior angle at angle 5 is angle 6. Which statements are always true regarding the diagram? Select three options. m∠5 + m∠3 = m∠4 m∠3 + m∠4 + m∠5 = 180° m∠5 + m∠6 =180° m∠2 + m∠3 = m∠6 m∠2 + m∠3 + m∠5 = 180°
The statements that are always true regarding the diagram are:
m∠1 + m∠5 = 180°
m∠2 + m∠3 = m∠6
m∠3 + m∠4 + m∠5 = 180°
Explain the term diagram
It refers to a value or position that is higher or greater than another value or position. It is often used in comparisons or to describe the relative positions of objects or points on a graph or coordinate plane. The opposite of "above" is "below," which refers to a value or position that is lower or lesser.
According to the given information
We know that the sum of the measures of the three interior angles of a triangle is always 180°. Therefore, we have:
m∠2 + m∠3 + m∠5 = 180°
From the given information, we know that:
m∠2 + m∠1 = 180° (linear pair of angles)
m∠3 + m∠4 = 180° (linear pair of angles)
m∠5 + m∠6 = 180° (exterior angle theorem)
Rearranging these equations, we get:
m∠1 = 180° - m∠2
m∠4 = 180° - m∠3
m∠6 = 180° - m∠5
Substituting these expressions into the above equation for the sum of the interior angles, we get:
m∠2 + m∠3 + m∠5 = m∠2 + (180° - m∠1) + m∠5
m∠3 + m∠4 + m∠5 = (180° - m∠3) + m∠4 + m∠5
Simplifying these equations, we get:
m∠1 + m∠5 = 180°
m∠2 + m∠3 = m∠6
Therefore, the statements that are always true regarding the diagram are:
m∠1 + m∠5 = 180°
m∠2 + m∠3 = m∠6
m∠3 + m∠4 + m∠5 = 180° (which is equivalent to option 2)
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Which expressions are equivalent to...
The equivalent expression of log4 ( 1/4x²) is log4(1/4) + log4(x²) ( option D)
What are laws of logarithm?The logarithm is the inverse function to exponentiation. For example log2 (8) = 3 and 2³ = 8
The following are math logarithm rules:
loga (MN) = loga M + loga N.
loga (M/N) = loga M - loga N.
IogaMn = n Ioga M.
For example Log5 (5²) = Log5 (5) + Log5 (5)
= 1+1 = 2
this means Log5 ( 5²) = log5 ( 25) = 2
Therefore if loga (MN) = loga M + loga N.,
we can say that,
log4( 1/4x²) can also be written as ;
log4 (1/4) + log4 (x²) .
therefore the equivalent expressions for
log4 ( 1/4x²) is log4 (1/4) + log4 (x²) .
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Which of the following sets of numbers could represent the three sides of a triangle O (6,8,14} O {11, 14, 22} O {13, 20, 34) O {13, 20, 35}
The set of numbers that can represent the sides of a triangle are:
{11, 14, 22} and {13, 20, 35}.
How to Determine the Set of Numbers that Can Represent the Sides of a Triangle?We can determine which set of numbers would represent the sides of a triangle by applying the triangle inequality theorem.
This theorem states that the sum of any two sides of a triangle must be greater than the length of the third side to make it a triangle.
Applying the theorem, we have:
A. (6,8,14)
6 + 8 > 14 (not true, since 6 + 8 = 14 and not greater than 14)
6 + 14 > 8 (true)
8 + 14 > 6 (true)
Therefore, (6,8,14) cannot represent the sides of a triangle.
B. {11, 14, 22}
11 + 14 > 22 (not true, since 11 + 14 = 25 and not less than 22)
11 + 22 > 14 (true)
14 + 22 > 11 (true)
Therefore, {11, 14, 22} does not represent the sides of a triangle.
C. {13, 20, 34}
13 + 20 > 34 (not true, since 13 + 20 = 33 and not greater than 34)
13 + 34 > 20 (true)
20 + 34 > 13 (true)
Thus, {13, 20, 34} cannot represent the sides of a triangle.
D. {13, 20, 35}
13 + 20 > 35 (not true, since 13 + 20 = 33 and not less than 35)
13 + 35 > 20 (true)
20 + 35 > 13 (true)
This means, {13, 20, 35} can represent the sides of a triangle.
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A particular sawdust pile has a base diameter of 35 feet when the height is 30 feet. Find the volume of this sawdust pile when it is 40 feet high.
If the base diameter of the sawdust pile is 35 feet when the height is 30 feet, then when it is 40 feet high, the diameter will be 46.7 feet, while the volume will be 68,545.37 feet³.
What is the volumeThe volume refers to the capacity of a three-dimensional object.
The formula for volume with diameter and height is V = πd²h/4.
Base diameter of the sawdust pile = 35 feet
Height = 30 feet
Base diameter of the sawdust pile when the height is 40 feet = 46.7 feet
(35/30 x 40)
Given height = 40 feet
Computed base diameter = 46.7 feet
Volume = πd²h/4
= 22/7 x 46.7² x 40/4
= 3.143 x 2,180.89 x 10
= 68,545.37 feet³
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A quadratic function yields negative values between x = 2 and x = 6. Its minimum value is −2. What are the coordinates of the y-intercept? Enter your answer by filling in the boxes.
Answer:
Since the quadratic function has a minimum value at some point between x = 2 and x = 6, its graph is a downward-facing parabola.
Let's assume that the function is of form f(x) = ax^2 + bx + c, where a, b, and c are constants.
Since the minimum value of the function is −2, we know that the vertex of the parabola lies on the line y = -2. Also, we know that the x-coordinate of the vertex is the average of 2 and 6, which is 4.
Therefore, the equation of the parabola can be written as f(x) = a(x-4)^2 - 2.
Since the y-intercept is the value of y when x = 0, we can find it by plugging in x = 0 into the equation of the parabola:
f(0) = a(0-4)^2 - 2
f(0) = 16a - 2
We know that the function yields negative values between x = 2 and x = 6, so the parabola must intersect the y-axis below the x-axis. This means that the y-intercept is negative.
To find the y-intercept, we need to solve the equation 16a - 2 = 0, which gives us a = 1/8.
Therefore, the equation of the parabola is f(x) = (1/8)(x-4)^2 - 2.
Finally, we can find the y-intercept by plugging in x = 0:
f(0) = (1/8)(0-4)^2 - 2
f(0) = 8 - 2
f(0) = 6
So the coordinates of the y-intercept are (0, 6).
Find the 61st term.
O, 6, 12, 18, 24, ...
61st term = [?
Answer: i think its 366
Step-by-step explanation:
i just did 61X6
Find the surface area of a triangular prism (which has 2 triangular bases and 3 rectangular sides) with the following dimensions:
Base of triangles= 4 in
Height of triangles = 3 in
Length of rectangles = 10 in
Width of rectangles = 5 in
The surface area of the triangular prism is 162 square inches.
What is prism?In geometry, a prism is a three-dimensional solid shape that has two identical, parallel faces (called bases) and rectangular or parallelogram-shaped sides. The sides connect the bases, and their shape determines the type of prism.
To find the surface area of the triangular prism, we need to find the areas of all five faces and add them together.
The area of each triangular base is:
A = (1/2)bh
where b is the length of the base (which is equal to 4 in) and h is the height (which is equal to 3 in).
A = (1/2)(4 in)(3 in) = 6 in²
So the total area of both triangular bases is:
2A = 2(6 in²) = 12 in²
The area of each rectangular side is:
A = lw
where l is the length (which is equal to 10 in) and w is the width (which is equal to 5 in).
A = (10 in)(5 in) = 50 in²
So the total area of all three rectangular sides is:
3A = 3(50 in²) = 150 in²
Therefore, the total surface area of the triangular prism is:
12 in² + 150 in² = 162 in²
Thus, the surface area of the triangular prism is 162 square inches.
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Need help don’t know how to do failed 3 times cause of it help
The expression that can be used to find out the amount of time it would take Sal to finish the remaining homework is C. 4 / 9 x 3 / 5 .
How to find the expression ?To find the expression that would show the time it would take for Sal to finish his homework, the formula would be:
= Proportion of questions remaining x Time taken to finish one question
Proportion of questions remaining:
= 1 - 5 / 9
= 4 / 9
Time taken to finish one question:
= 3 / 5 minutes
The expression is therefore:
4 / 9 x 3 / 5
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2. Consider this scatter plot.
a)
Draw a line of best fit on the picture of the scatterplot above. (2 pts.)
b) Is there a positive or negative association between a car's price and age? Explain your answer using as
much detail as possible. (3 pts.)
Answer:
Answer: A
Step-by-step explanation: cuz of the
pie chart
Negative 3 6/7 times negative 3 1/3
The expression Negative 3 6/7 times negative 3 1/3 has a value of -12 6/7
Evaluating the mathematical expressionWe have the following statement as the given parameter
Negative 3 6/7 times negative 3 1/3
Next, we rewrite the above statement using numbers and operators
-3 6/7 * 3 1/3
The above statement is a product expression that multiplies the values of -3 6/7 and 3 1/3
Also, there is no need to check if there are like terms in the expression or not
This is because we are multiplying the factors
So, we have
-3 6/7 * 3 1/3 = -27/7 * 10/3
Evaluate
-3 6/7 * 3 1/3 = -9/7 * 10
Rewrite as
-3 6/7 * 3 1/3 = -90/7
Simplify
-3 6/7 * 3 1/3 = -12 6/7
This means that the value of the expression is -12 6/7
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