The probability that at most three records will be incomplete is approximately 0.650 (rounded to three decimal places).
What is Binomial Distribution ?
The binomial distribution is the discrete probability distribution used in probability theory and statistics that only allows for Success or Failure as the possible outcomes of an experiment.
This is a binomial distribution problem with n=10 and p=0.156. Let X be the number of incomplete records. We need to find P(X ≤ 3).
Using a TI-83, TI-83 Plus, or TI-84 calculator, we can use the binomial cumulative distribution function (binomcdf) to find this probability:
binomcdf(10, 0.156, 3) ≈ 0.650
Therefore, the probability that at most three records will be incomplete is approximately 0.650 (rounded to three decimal places).
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Unit 7 polygons & quadrilaterals homework 1 angle of polygons
The angle of polygons is an important concept in geometry and can be calculated using the formula (n-2) x 180. Quadrilaterals are a specific type of polygon with four sides and four angles, and their interior angles can be found by dividing the sum of the interior angles by the number of sides.
What are the angles of polygons?The angle of polygons is an important concept in geometry. A polygon is a closed shape with three or more sides, and the angles of a polygon are the interior angles formed by the sides. Quadrilaterals are a specific type of polygon with four sides and four angles.
To find the sum of the interior angles of a polygon, you can use the formula (n-2) x 180, where n is the number of sides. For example, a quadrilateral has four sides, so the sum of its interior angles would be (4-2) x 180 = 360 degrees.
Each individual angle of a quadrilateral can be found by dividing the sum of the interior angles by the number of sides. So for a quadrilateral, each angle would be 360/4 = 90 degrees.
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A circle can pass through the vertices of right angle triangle mAC=3cm m BC=4cm m
Answer: the awnser is 43
Step-by-step explanation:
please help me solve this paragraph proof for geometry, i’ll mark brainliest
Answer:
ABCD is a kite, therefore, ΔAEC is a right Δ
Step-by-step explanation:
Look at ΔABD and ΔACD, they both have the same side AD, AB = AC while BD = CD. Therefore ΔABD and ΔACD are congruent or basically the same triangle.
Both ΔABD and ΔACD will form a quadrilateral, which can be called a kite.
Definition: A kite is a quadrilateral with two pairs of adjacent sides, congruent.
Therefore, a kite has perpendicular diagonals, where one bisects the other.
So AD is perpendicular to BC
so the angles AEC, ABD, DEC, DEB are all right angles.
Hope this helps.
Any one can solve these questions with steps?
Answer:
which one?Tell me so I can help you
QUICK
in the triangle the length of side b is 7 the m
i will need to label the triangle and all work for finding missing sides there will be two separate equations that you solve circle your final answer
Answer:
Where is the angle so I can help you?
what is integral of xlnx ?
The given integral is solved by using integration by parts. And the required answer for the integral of x lnx is [tex]\int x\ln (x) \;dx=\frac{1}{2}x^2\ln x-\frac{1}{4}x^2+C[/tex].
Integration by parts is a special method that is used when we have to integrate the product of two functions. This method is also called the product rule for integration. Using this method, we consider the integral of x ln x as the product of two functions such as x and ln x. This is solved by using the formula, [tex]\int u\;dv = uv- \int v\;du[/tex].
Let's take u = ln x, dv = x dx, [tex]v=\frac{1}{2}x^2[/tex], [tex]du =\frac{1}{x}dx[/tex]. Then,
[tex]\begin{aligned}\int u\;dv &= uv- \int v\;du\\\int \ln x \cdot xdx&=\ln x\times \frac{x^2}{2}-\int \frac{x^2}{2}\times\frac{1}{x}dx\\&=\frac{1}{2}x^2\ln x-\frac{1}{2}\int xdx\\&=\frac{1}{2}x^2\ln x-\left[\frac{1}{2}\times\frac{1}{2}x^2\right]+C\\&=\frac{1}{2}x^2\ln x-\frac{1}{4}x^2+C\end{aligned}[/tex]
The required answer is [tex]\int x\ln (x) \;dx=\frac{1}{2}x^2\ln x-\frac{1}{4}x^2+C[/tex].
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If 18 793is multiplied by 1000 then what is the product
If 18,793 is multiplied by 1000, then the product of this arithmetic equation will be equal to 18,793,000.
The arithmetic equations are the mathematical problems which includes simple functions such as addition (summation), subtraction, multiplication and division. The function of multiplication is also called as repeated addition. In the given question, the multiplicand is 18,793 and the multiplier is 1000 and the result which we get that is 18,793,000 is called as product.
The multiplicand is always written first. When the multiple of 10 is multiplied to any number, the general rule says that there is simple addition of zeroes in the right hand side of the number if is not in decimal form. If the number is in decimal form, the decimal point shift to the right hand side as many times as there are zeroes in the multiplier.
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you buy a new car for $22,500. the value of the car decreases by 25% each year. write an exponential decay model giving the car's value v (in dollars) after t years. what is the value of the car after three years to the nearest dollar amount?
Therefore, the value of the car after three years is approximately $9,484.
What is percent?Percent is a term used to represent a fraction of 100. It is denoted by the symbol "%". Percentages are commonly used to express proportions, ratios or fractions in terms of parts per hundred. The word "percent" comes from the Latin phrase "per centum," which means "by the hundred." Percentages are commonly used in everyday life, such as in calculating taxes, discounts, interest rates, and in comparing statistics, among others.
Here,
The exponential decay model for the value of the car after ⁿ years can be written as:
v = 22500 * (0.75)ⁿ
where 22500 is the initial value of the car, and (0.75)ⁿ represents the value after ⁿ years with a 25% annual decrease.
To find the value of the car after three years, we can substitute n = 3 into the equation:
v = 22500 * (0.75)³
v = 22500 * 0.421875
v = 9484.375
Rounding this to the nearest dollar amount, we get:
v ≈ $9,484
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After her birthday sleepover, Roxanne's dad made mini pancakes for breakfast. All of the pancakes were either blueberry or chocolate chip. He made 108 mini pancakes in all. There were 3 times as many blueberry pancakes as chocolate chip pancakes. How many blueberry pancakes did Roxanne's dad make?
As per the unitary method, Roxanne's dad make did make 36 blueberry pancakes.
Here we know that Roxanne's dad made 108 mini pancakes in total, with 3 times as many blueberry pancakes as chocolate chip pancakes.
And we need to solve this problem, we can use the unitary method, which is a simple way to solve problems involving ratios.
As we all know that the unitary method involves dividing the total number of items (108 pancakes) by the ratio (3 blueberry to 1 chocolate chip).
=> 3:1 = 108
When we simplify this gives us the result that 36 blueberry pancakes were made. Therefore, Roxanne's dad made 36 blueberry pancakes
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special right triangle
Answer:
h = 9.9
b = 4.6
Step-by-step explanation:
The first triangle is an isosceles right triangle
The base leg = vertical leg = 7
diagonal = 7√2 = 9.9 (rounded to nearest tenth)
h = 9.9
For the 30-60-90 triangle
if the vertical leg is x, the base leg = vertical leg / √3 = 8/√3 = 4.6
b = 4.6
what is 5'2 in meters?
AS per the measurement, the value of 5'2 in meters is 1.5748 meters.
One common unit of measurement is the foot, which is often used to measure height. However, in some scientific fields, the meter is the preferred unit of measurement.
To convert 5'2 into meters, we first need to understand the relationship between feet and meters. One foot is equal to 0.3048 meters, which means that we can convert 5 feet to meters by multiplying 5 by 0.3048. This gives us 1.524 meters.
But what about the additional 2 inches? We can convert inches to meters by dividing the number of inches by 39.37 (the number of inches in a meter). In this case, 2 inches divided by 39.37 equals 0.0508 meters.
To get the total measurement in meters, we simply add the two values: 1.524 + 0.0508 = 1.5748 meters.
Therefore, 5'2 is equivalent to 1.5748 meters.
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100 pts
A box with an open top is formed by cutting squares
out of the corners of a rectangular piece of cardboard
and then folding up the sides. If x represents the
length of the side of the square cut from each corner,
and if the original piece of cardboard is 15 inches by
13 inches, what size square must be cut if the volume
of the box is to be 189 cubic inches?
Use: length: (15-2x)
Width: (132z)
Height: x
The dimensions square must be cut if the volume of the box is to be 189 cubic inches is 9 * 7 * 3.
What is Volume ?The mathematical concept of volume represents the amount of three-dimensional space that an object or closed surface takes up. Volume is measured in cubic units like m³, cm³, in³, etc.
The dimension of the box will be:
= L * W* H
=(15-2x)*(13-2x)*x
The volume:
x(15-2x)*(13-2x) = 189
x(195 - 56x + 4x²) = 189
4x³ - 56x² + 195x - 189 = 0
Hopefully it's an integer, we know it's a low value
Try x=3 using synthetic division
we get , 3 as the solution or or root of the equation.
Check x = 3, the side of the cut out squares
(15-6)(13-6) 3 = 189
9 * 7 * 3 = 189 cu/in
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1. Tanya used 3(3/8) yards of fabric to maker her dress, and she used 1(1\3) yards of fabric to make her jacket. What was the total amount of yards?
A. 4(1/8)
B. 4(1/6)
C. 4(4/11)
D. 4(1/2)
E. 4(17/24)
The total amount of yards are 4(1/8).
To find the total amount of fabric Tanya used, we need to add the amount of fabric she used for the dress and the amount of fabric she used for the jacket.
Tanya used 3(3/8) yards of fabric for the dress and 1(1/3) yards of fabric for the jacket. We can add these two amounts by finding a common denominator for the fractions and adding the whole numbers:
3(3/8) + 1(1/3) = 3(9/24) + 1(8/24)
=> 3(17/24)
Therefore, Tanya used a total of 3(17/24) yards of fabric. This can be simplified to:
=> 3(17/24) = 4(1/8)
So the answer is A. 4(1/8).
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One important use of the regression line is to do which of the following? a) To make predictions about the values of y for a given x-value. b) To determine the strength of a linear association between two variables. c) To determine if a distribution is unimodal or multimodal. d) Both A and B are correct.
A regression line is defined as an estimate of the line that describes the actual line, which is unknown. It represents a linear relationship between the two variables, that is the dependent and the independent variable.
In other words, the equation of the regression line is used to estimate the value of the dependent variable from a specified value of the independent variable.
Correlation coefficient is used to determine the strength of linear association between two variables, that is the dependent and the independent variable. (Correlation shows what kind of relation two variables have.)
Regression line's important use is to make predictions about the values of y for a given x-value.
Hence option a is correct.
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how to calculate time for 1 oscillation
Period, which is a measure of how long an oscillation lasts, is constant. With L being the pendulum's length and g being the acceleration brought on by gravity, the formula for calculating a pendulum's period is T = 2π √L/g,
A simple pendulum is a machine whose point mass is suspended from a fixed support by a light, inextensible string. When a pendulum is displaced sideways from its resting position due to gravity, the equilibrium position is subjected to a restoring force that will accelerate it back toward the equilibrium position.
Only the length of the string affects a pendulum's period; the mass of the ball has no bearing. When two pendula are the same length but have different masses, their periods will be the same. The pendulum with the longer string will have a longer period if there are two of them, but their periods will differ.
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What is 125% as a fraction?
The fraction of the value given as 125% can be expressed by the term of 125% = 5/4.
A ratio in which the total value is always 100 is a ratio, and a percentage is a portion of that ratio.
To represent a portion of a whole, we utilise fractions. Now, we must translate a percentage to a fraction.
Use the instructions below to convert 125% to a fraction:
First, add the percent sign.
Divide the supplied percentage by 100 to express it as a fraction.
As a result, we can write as 125/100.
To simplify the fraction, divide the numerator and denominator by their respective HCFs.
Now, 125 percent can be expressed as 125/100.
When the given fraction is simplified, we obtain
[Dividing the numerator and denominator by their HCF, which is 25]: 125/100 = 5/ 4
Hence, the fraction of 125% is 5/4.
Using a percent to fraction calculator is another way to confirm.
Hence, the fraction of 125% is 5/4.
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The graph of f(x)=x² was translated 6 units to the left to create the graph of function g. Write an equation in vertex form to represent function g.
The vertex form of a quadratic function is given by:
f(x) = a(x - h)^2 + k
where (h, k) is the vertex of the parabola.
Since the graph of f(x) = x^2 was translated 6 units to the left to create the graph of g, the vertex of g is at the point (h - 6, k).
The vertex of f(x) = x^2 is at (0, 0), so the vertex of g is at (-6, 0).
Since the vertex is at (-6, 0), the equation of g in vertex form is:
g(x) = a(x + 6)^2 + 0
We can find the value of "a" by using another point on the parabola. For example, if we know that g(-3) = 9, then we can substitute these values into the equation and solve for "a":
9 = a(-3 + 6)^2
9 = 9a
a = 1
So the equation of g in vertex form is:
g(x) = (x + 6)^2
if f(x)=-3x+5, find f(-2)
The value of the equation f(x)=-3x+5 at f(-2) is 11.
What is equation?An equal sign ("=") links two expressions together to form an equation. The two expressions on either side of the equals sign are referred to as the "left-hand side" and "right-hand side" of the equation. The right side of an equation is typically assumed to be zero. As we can balance this by deducting the expression on the right from the expressions on both sides, this won't reduce the generality.
The given equation is f(x)=-3x+5.
Substitute the value of x = -2 in the equation to find f(-2).
f(x)=-3x+5
f(-2) = -3(-2) + 5
f(-2) = 6 + 5
f(-2) = 11
Hence, the value of the equation f(x)=-3x+5 at f(-2) is 11.
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3 dotted horizontal and parallel lines are shown. Point Q is at the far left side of the top line, point R is at the far right of the second line, and point S is at the far left side of the bottom line. Lines are drawn from point Q to point R and from point R to point S. The angles formed are labeled, from top to bottom: 1, 2, 3, 4.
Use the diagram to complete the statements.
The angle of depression from point R to point S is angle
.
The angle of elevation from point S to point R is angle
.
Angle 2 is the angle of elevation from
.
Angle 1 is the angle o
Angle 2 is the angle of elevation from point Q to point R.
What is angle of elevation ?
The angle of elevation is the angle formed between a horizontal line and the line of sight from the observer's eye to an object located above the observer's level. In other words, it is the angle between the horizontal and an imaginary line drawn upwards from the observer to the object being viewed. It is typically measured in degrees or radians.
Given,
Point Q is at the far left side of the top line, point R is at the far right of the second line, and point S is at the far left side of the bottom line.
Lines are drawn from point Q to point R and from point R to point S.
angle of depression from point R to point S.
The angle of depression from point S to point R is angle 3.
Therefore, Angle 2 is the angle of elevation from point Q to point R.
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Answer:
the angle of depression from point R to point S is angle 3
the angle of elevation from point S to point R is angle 4
angle 2 is the angle of elevation from point R to point Q
angle 1 is the angle of depression from point Q to point R
Step-by-step explanation:
What is the conversion of 47kg in lbs ?
The conversion mass value of the kilograms to pounds is given by
( 103.635 ) pounds.
Kilograms and pounds are units which represents one of the standard unit form help us to measure mass.Standard formula which relates these two quantities of mass are represented as :
One kilogram is equal to 2.205 pounds
After substituting the standard relation between the kilograms and the pounds we get the required value,
1 kilogram = 2.205 pounds
⇒ 47 kilograms = ( 47 ) × ( 2.205 ) pounds
⇒ 47 kilograms = ( 103.635 ) pounds
Therefore, the converted value of 47 kilograms into the pounds is written as ( 103.635 ) pounds.
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A car going 50 mil/hr accelerates to pass a truck. 5 seconds later the care is going 80mil/ Calculate
the acceleration of the car.
Answer:
Step-by-step explanation:
5 seconds later acceleration of the car is 6m/h^2
We know that the initial velocity of a car is 50 mph.
In the end, the final velocity of a car is 80 mph.
The time difference is 5 seconds.
For the calculation of the acceleration, we have this formula,
α = δv/t
so here, according to our data, velocity and time are,
u = 50 mph
v = 80 mph
t = 5 s
Finally, the acceleration of the car can be calculated by,
α = (80 - 50) / 5
α = 30 / 5
α = 6 m/h^2
From the above calculations, the car's acceleration is 6 m/h^2.
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Why are exponent laws important to use when simplifying exponents?
Exponents laws are
[tex]a^n . a^m = a^{n + m}[/tex]
[tex]a^n / a^m[/tex] = [tex]a^{n - m}[/tex]
Exponent laws are important to use because they will help us to simplify complex expressions easier.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Exponents are written in the form [tex]a^n[/tex]
Where n can be any real numbers.
Now,
a = 2
For n = 0, 1, 2, 3, -1, -2, -3
We get,
[tex]2^0[/tex] = 1
2² = 2 x 2 = 4
2³ = 2 x 2 x 2 = 8
[tex]2^{-1}[/tex] = 1/2
[tex]2^{-2}[/tex] = 1/(2 x 2) = 1/4
[tex]2^{-3}[/tex] = 1/(2 x 2 x 2) = 1/8
Exponents laws are:
[tex]a^n . a^m = a^{n + m}[/tex]
[tex]a^n / a^m[/tex] = [tex]a^{n - m}[/tex]
Thus,
Exponent laws are important to use because they will help us to simplify complex expressions easier.
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Which equation does the graph of the systems of equations solve?
• -x^2+2x+3=x^2-4x+3
•x^2-2x+3=2x^2-4x+3
•x^2-2x+3=2x^2-4x-3
•-x^2-2x+3=x^2-4x+3
The equation that the graph of the systems of equations solve is:
x^2 - 2x + 3 = 2x^2 - 4x + 3
This is the second equation listed.
PLS ANSWER QUICKLY!!!! ILL GIVE BRAINLEST AND 50 POINTS!!!!!
Make sure to find the missing angle measure AND the 2 missing side lengths.
Answer:
Below
Step-by-step explanation:
REMEMBER: for a right triangle sin (30) = opposite LEG/ hypotenuse
so sin 30 = 4 / hypotenuse now, with a calculator sin 30 = 1/2
1/2 = 4 / hypotenuse so hypotenuse = 8
Now it is a right triangle so Pythagorean theorem applies
hyp ^2 = 4 ^2 + BM^2
8^2 = 4^2 + BM^2
48 = BM^2 so BM = sqrt (48 ) = 4 sqrt 3
Finally, all of the internal angles of ANY triangle sum to 180 °
so angle x = 180 - 90 - 30 = 60°
A parabola can be drawn given a focus of A parabola can be drawn given a focus of (0,−2) and a directrix of
x=2. What can be said about the parabola?
the parabola has an equation of y = (-1/8)x² + (1/2)x - 1/2, its vertex is at (2, 0), and it opens to the left with a focus at (0, -2) and a directrix at x=2.
Since the directrix of the parabola is a vertical line x=2, the axis of the parabola is horizontal, and its vertex is the point of intersection between the axis and the directrix, which is (2, 0). The focus is located at (0, -2), which is two units below the vertex, so the distance between the focus and the vertex is |p| = 2, where p is the distance between the vertex and the directrix. Since the directrix is to the right of the vertex, the parabola opens to the left. Therefore, its equation can be written in the form:
(x - h)² = -4p(y - k)
where (h, k) is the vertex. Plugging in the values we have, we get:
(x - 2)² = -8(y - 0)
Simplifying, we get:
x² - 4x + 4 = -8y or
y = (-1/8)x² + (1/2)x - 1/2
Therefore, the parabola has an equation of y = (-1/8)x² + (1/2)x - 1/2, its vertex is at (2, 0), and it opens to the left with a focus at (0, -2) and a directrix at x=2.
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A Street that is 142 m long is covered in snow city workers are using a snowplow to create a snowplow has tires that are 1.3 m in a diameter how many times does a tire have to turn in traveling the length of the streets use the value 3.14 for pie around your answer to the nearest 10 do not around any intermediate steps
Answer: 44
Step-by-step explanation: No explain because just yeah:)
Find the volume of a cylinder with a diameter of 34 m and a height of 27 m.
The volume of a cylinder with a diameter of 34 m and a height of 27 m is 24501.42 m³.
A cylinder is a three-dimensional figure that has a rectangular body but is rolled up which gives it a round shape with two circles for its top and bottom. We see a lot of cylinders around us all the time.
Here, we have been told that the diameter of the cylinder is 34 which means that the radius is 34/2 = 17 m.
Furthermore, we have also been told that the height of the cylinder is 27 m.
We already know that the volume of a cylinder can be calculated using
= πr²h
Using the values, we get -
= 3.14 * 17 * 17 * 27
= 24501.42 m³.
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Honey is $7. 99 for 3 pounds. What is the price for 5 pounds?
The price for 5 pounds of honey is $13.32.
Unitary method is a mathematical technique used to solve problems related to proportions and ratios.
To find the price for 5 pounds of honey, we can use a proportion:
Price of 3 pounds of honey / 3 = Price of 1 pound of honey
We can use this equation to find the price of 1 pound of honey, and then multiply by 5 to find the price of 5 pounds of honey.
Price of 3 pounds of honey / 3 = 7.99 / 3
Price of 1 pound of honey = 2.6633 (rounded to 4 decimal places)
Price of 5 pounds of honey = 2.6633 x 5 = $13.32 (rounded to 2 decimal places)
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3^8 x 2^3 divided by 3^5
Answer:
216
HOPE THIS HELPS
PLS GIVE BRAINLIEST
Find the weighted average of the numbers 1 and 6, with weight four-fifths on the first number and one-fifth on the second number. a. 2 b. 6.2 c. 3 d. 2.8
The weighted average of the given numbers 1 and 6 is 2.
What is a weighted average?
A weighted average is the average of a set of integers with different associated "weights" or values. The weighted average can be calculated by multiplying each value by its weight, then adding the results.
We are given two numbers as 1 and 6.
The formula of weighted average is as follows
Weighted average = (first number x weight of first number) + (second number x weight of second number)
We are given weights as four-fifths on the first number and one-fifth on the second number.
So,
⇒Weighted average = (1 x 4/5) + (6 x 1/5)
⇒Weighted average = 4/5 + 6/5
⇒Weighted average = 10/5
⇒Weighted average = 2
Hence, the weighted average of the given numbers 1 and 6 is 2.
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