The coordinates of point Q after dilation will be (2,-1). The correct option is B.
What is coordinate geometry?A coordinate plane is a 2D plane that is formed by the intersection of two perpendicular lines known as the x-axis and y-axis. A coordinate system in geometry is a method for determining the positions of the points by using one or more numbers or coordinates.
Given that the coordinate is Q(8,-4). The point is dilated by a factor of 1/4.
The dilation of the point will be calculated as,
Q(8,-4) = Q'(8/4, -4 / 4)
Q(8,-4) = Q'(2, -1)
Hence the dilated point is Q'(2,-1).
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Which communicable diseases are known for targeting the human respiratory system? I. Influenza II. Tuberculosis III. Coronavirus infections Group of answer choices II and III I only I, II, and III II only
The communicable diseases that are known for targeting the human respiratory system are C. I, II, and III.
Which disease target human respiratory system ?There are several diseases that target the human respiratory system and a lot of them are communicable . One of the most popular of these is the Coronavirus infection which forced the world into various lockdowns to prevent its spread.
Then there is Influenza II which is one of the most communicable diseases in existence. It also attacks the human respiratory system much like Tuberculosis III.
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2. The diagram shows some steps.
Find the volume in cm^3 and surface area in cm^2.
The volume of the step and the surface area of the steps are 120000 cm³ and 26,400 cm² respectively.
What is a Rectangular Prism?
A rectangular prism is a three-dimensional shape that consists of six faces. The two faces are at the top and bottom and the other faces are lateral faces.
The given steps can be divided into 3 rectangular boxes each with length, l = 1 m = 100 cm, width, w = 20 cm, and height, h = 20 cm.
The volume of a rectangular box = l × w × h
= 100 × 20 × 20
= 40000 cm³
Volume of 3 rectangular boxes = 3 × 40000 cm³
= 120000 cm³
Surface area of a rectangular box = 2 (lw + lh + wh)
= 2 [(100 × 20) + (100 × 20) + (20 × 20)]
= 2 [2000 + 2000 + 400]
= 2 [4400]
= 8800 cm²
The surface area of 3 rectangular boxes = 3 × 8800
= 26,400 cm²
Hence, the volume of the steps is 120000 cm³ and the surface area of the steps is 26,400 cm².
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The table below shows Lamonte's earnings on the job.
Based on the constant rate of change, it will take Lamonte 4.5 hours to earn $107.55.
What is the constant rate of change?The constant rate of change refers to the ratio of an output value to an input which remains constant in all variables.
The constant rate of change is called a slope in a linear function or the unit rate.
The constant rate of change implies that the dependent variable changes (increasing or decreasing) as the other comparable or independent variable changes similarly.
Time (hours) Earnings (dollars) Unit Rate
3 $71.70 $23.90 ($71.70/3)
11 $262.90 $23.90 ($262.90/11)
28 $669.20 $23.90 ($669.20/28)
Total earnings = $107.55
Unit rate her hour = $23.90
The number of hours required = 4.5 hours ($107.55/$23.90)
Thus, using the constant rate of change or unit rate, Lamonte must work 4.5 hours to have total earnings of $107.55.
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Which of the following are statistics?
a. X
b. µ
c. α
d. s
e. α^2/n
Answer:
Letter B is the statistic.
can someone pls do this i'm lazy
Answer:
Here ya go lazy one
Step-by-step explanation:
1 - 0.62 x 2 = 1.24
2 - 0.5 x 9 = 4.5
3 - 3.6 x 8 = 28.8
4 - 5.1 x 7 = 35.7
5- 4 x 2.3 = 9.2
Mark me brainliest lazy one <3
Help Please! I need to find the value of x in the quadrilateral
I know the sum of the exterior angles and interior angles is 360 and I know I need to do something with substitution but I have no idea where to start. Please explain it step by step so I understand.
The value of x in the quadrilateral is 23°
How to find the value of x in the quadrilateral?
Geometry is a branch of mathematics that deals with shapes, angles, dimensions and sizes of different things we see in everyday life
The interior angles of the quadrilateral are :
180 - (x+16)° (sum of angles on a straight line)
180 - (3x-1)° (sum of angles on a straight line)
180 - 6x° (sum of angles on a straight line)
180 - 5x° (sum of angles on a straight line)
Since the sum of the interior angles of a quadrilateral is 360°. We have:
180-(x+16)° + 180-(3x-1)° + 180-6x° + 180-5x° = 360°
180 - x - 16 + 180 - 3x + 1 + 180 - 6x + 180 -5x = 360
705 - 15x = 360
15x = 705 - 360
15x = 345
x = 345/15
x = 23°
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A group of students was surveyed in a middle school class. They were asked how many hours they work on math homework each week. The results from the survey were recorded.
Number of Hours Total Number of Students
0 1
1 8
2 2
3 5
4 9
5 7
6 3
Determine the probability that a student studied for exactly 1 hour. Round to the nearest hundredth.
The probability that a student studied for exactly 1 hour is 0.23.
How to calculate the probability?Probability simply means the chance that a particular thing or event will happen. It is the occurence of likely events. It deals with the numerical estimates of the chance that an event will occur.
In this case the group of students was surveyed in a middle school class and they were asked how many hours they work on math homework each week.
The probability that a student studied for exactly 1 hour will be:
Number of students that studied for 1 hour / Total number of students
= 8 / 35
= 0.23
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Rashon has $780 to spend at a bicycle store for some new gear and biking outfits. Assume all prices listed include tax.
He buys a new bicycle for $481.28.
He buys 3 bicycle reflectors for $10.78 each and a pair of bike gloves for $32.64.
He plans to spend some or all of the money he has left to buy new biking outfits for $44.95 each.
Write and solve an inequality which can be used to determine oo, the number of outfits Rashon can purchase while staying within his budget.
The required inequality is x ≤ 5.09, where x is the number of outfits. Rashon can buy at most 5 outfits while staying within his budget.
To determine the number of biking outfits Rashon can buy while staying within his budget, you can set up an inequality using the information provided.
First, calculate the total cost of the reflectors and gloves:
3 reflectors × $10.78 + $32.64 = $38.34 + $32.64 = $71
Then, subtract the cost of the bicycle, reflectors, and gloves from Rashon's budget: $780 - $481.28 - $71 = $227.72
Now, you can use this remaining amount to determine the number of biking outfits Rashon can buy.
Let x be the number of outfits he can buy
You can set up an inequality as follows:
44.95x ≤ $227.72
Dividing both sides by 44.95:
x ≤ 5.09
However, since the number of outfits is an integer, he can only buy 5 outfits at most.
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Please help? This assignment is due in 23 minutes and is still have 7 more questions :(
The average person in a slum in a developing region uses 1.32 gallons (5 liters) of water every day. If the average shower in the US uses 7.5 gallons of water a minute how long of a shower would it be to use 1.32 gallons?
One gallon equals 16 eight ounce glasses of water.
A one-minute shower consumes how many gallons?According to the EPA, conventional shower heads utilize 2.5 gallons of water each minute. For the normal shower, that’s 20 gallons of water! To help lower your water impact, try trimming three minutes off your shower time. Delivering, purifying, and boiling hot water for your shower also consumes a lot of energy.
To determine the average shower water use, multiply the average flow rate of 2.1 gallons per minute by the average shower time of 8.2 minutes. So, 17.2 gallons is the average amount of water utilized. A 10-minute shower will consume 21 gallons of water. The amount of water consumed in the shower may quickly add up.
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HEEEEEELP IT’S TIMED
(Zoom in for less lines)
Answer: is A
Step-by-step explanation:
What is a 3 2 scale factor?
Each of them becomes the fraction 3/2, or 1 1/2. (the second triangle is a little less than twice as big). Since we often keep the scale factor as a fraction, we would remark that it is 3/2.
How do you dilate by scale factor?We locate the dilation's centre point and measure the distances between it and other points on the preimage and the image in order to get the scale factor for the dilation. As correctly stated by Math Bits Notebook, the scale factor is determined by the ratio of these distances.The new shape is three times as large as the original if the scale factor is 3.The fundamental equation to determine the scale factor of a figure is written as, Dimensions of the original shape minus the dimensions of the new shape equals the scale factor.Scale Up = larger measurement / smaller measurement (smaller to larger).Smaller measurement / larger measurement equals a scale-down operation.To learn more about scale refer to:
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Each of them becomes the fraction 3/2, or 1 1/2. (the second triangle is a little less than twice as big). Since we often keep the scale factor as a fraction, we would remark that it is 3/2.
How do you dilate by scale factor?We locate the dilation's center point and measure the distances between it and other points on the preimage and the image in order to get the scale factor for the dilation. As correctly stated by Math Bits Notebook, the scale factor is determined by the ratio of these distances.
The new shape is three times as large as the original if the scale factor is 3.
The fundamental equation to determine the scale factor of a figure is written as, Dimensions of the original shape minus the dimensions of the new shape equals the scale factor.
Scale Up = larger measurement / smaller measurement (smaller to larger).
Smaller measurement / larger measurement equals a scale-down operation.
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If you pay $12.80 for 8 extra large bags of cheetos, how much will 1 bag cost you?
Answer:
12.80/8=1.6
$1.60 for one bag of cheetos
Step-by-step explanation:
Answer: $1.6 for 1 bag
Step-by-step explanation:
We can divide 12.80 by 8 = 1.6 to find the answer to your question
How do you solve rotation problems?
When a linear force works, it produces In the domain of rotation, work is accomplished by a torque delivered through an angle . work = (torque) * (angle).
what is linear equation ?A linear equation is one that has the form y=mx+b in algebra.The slope is B, and the y-intercept is m. Since y and x are variables, the previous sentence is frequently referred to as a "linear equation with two variables." Bivariate linear equations are linear equations with two variables. There are several instances of linear equations: 2x - 3 = 0, 2y = 8, m + 1 = 0, x/2 = 3, x + y = 2, and 3x - y + z = 3. It is referred to as being linear when an equation has the form y=mx+b, where m stands for the slope and b for the y-intercept.
given
When a linear force works, it produces In the domain of rotation, work is accomplished by a torque delivered through an angle .
work = (torque) * (angle). Work is defined as force times distance.
The angle of rotation is calculated by dividing the length of the arc by the radius of curvature. 360° is equal to two revolutions, or two rad.
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Is section formula and midpoint formula same?
So on solving the provided question, we can say that A line segment's midpoint is the location where it is divided into two equally sized halves.
what is midpoint?The midpoint of a line segment is known as the midpoint in geometry. The centroid of all segments and ends, it is equally spaced from each of them. Add the two figures together and divide by two to determine the middle of any range. Look at this illustration to see how to determine the intersection of two points on a 1D axis. Consider the numbers 5 and 9 as the two points on a number line. Calculating the midpoint is as follows: (5 + 9)/2 = 14/2 = 7. As a result, 7 lies halfway between 5 and 9. There are instances when you need to locate a precise spot between two other points. The term "midpoint" refers to this center. The point on a line segment that divides the line is considered to be the midway of the segment.
A line segment's midpoint is the location where it is divided into two equally sized halves. The point splitting the line segment in any desired ratio can be found using the more potent section formula, which builds on the previous method.
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A rectangle has a length of 5x+2 and a width of 3x-1. Write an Expression for the perimeter of the rectangle
Answer:
16x+6
Step-by-step explanation:
5x+2+3x+1+5x+2+3x+1 =
16x+6
Answer:
16x + 2
Step-by-step explanation:
[tex]\boxed{\begin{minipage}{4 cm}\underline{Perimeter of a rectangle}\\\\$P=2(w+l)$\\\\where:\\ \phantom{ww}$\bullet$ $w$ is the width. \\\phantom{ww}$\bullet$ $l$ is the length.\\\end{minipage}}[/tex]
Given expressions:
[tex]\textsf{Length} = 5x + 2[/tex][tex]\textsf{Width} = 3x - 1[/tex]To write an expression for the perimeter of the rectangle, substitute the given expressions for the width and length into the perimeter formula:
[tex]\begin{aligned}\implies \textsf{Perimeter} &=2\left(5x+2+3x-1 \right)\\ &= 2(5x+3x+2-1)\\&=2(8x+1)\\&=16x+2\end{aligned}[/tex]
Taylor splits 5 pounds of ham equally to make 10 sandwiches. He thinks each sandwich will recieve 2 pounds of ham. Is he correct? explain
Answer: No
Step-by-step explanation: 5 pounds of ham would mean that 5 people get 1 pound, and 10 people would get 1/2 pound or 0.5 pounds of ham each.
Answer: No
Step-by-step explanation: Step 1: Calculate the total amount of ham needed for 10 sandwiches. This is 10 x 2 = 20 pounds.
Taylor is not correct, as he does not have enough ham to make 10 sandwiches with 2 pounds of ham in each.
t = 3p/r + s
make r the subject of the formula
Answer:
\frac{3t}{t-1}[/tex]Step-by-step explanation:[tex]t = \frac{r}{r - 3}[/tex]Cross multiply,t(r - 3) = rtr - 3t = r tr = r + 3t tr - r = 3t r(t -1) = 3t
Step-by-step explanation:
Making the r as subject of the formula for the given expression t = 30p/r + s is given by, r = 30p/(t - s).
Given the expression is,
t = 30p/r + s, where p, r, s and t are mathematical variables.
We have to make the r the subject of the formula that is we have to express the variable ' r ' in terms of the other variables in the given expression.
t = 30p/r + s
t - s = 30p/r
r/30p = 1/(t - s)
r = 30p/(t - s)
Hence the rearranged form of the given expression is r = 30p/(t - s).
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What is the exponential form of 4x4x4?
Answer:
4^3
Step-by-step explanation:
4x4 would be squared aka 4^2 but since theres three itd be cubed aka 4^3
the 1-mile race is equal to how many feet?
I'm pretty sure the answer is 5280 feet
Answer: 5,280 Feet (1.609 km)
Step-by-step explanation: Why, the distance of 1 mile is equal to 5,280 feet (1.609 km). It originated from the Roman mile passus, or “thousand paces,” which measured 5,000 Roman feet. I hope this helps!
3/5 plus 1/4 in simplest form please
Answer:
17/20
Step-by-step explanation:
3/5 + 1/4
The common factor is 20, so we have
12/20 + 5/20 = 17/20
We can't simplify 17/20 any further, so the answer is 17/20
find the area and peremiter of the parallelgram .
The area and perimeter of the parallelogram can be found to be :
Area Perimeter How to find the area and perimter of a Parallelogram ?The area of a Parallelogram can be found by the formula :
= Base of Parallelogram x Height of Parallelogram
= 54 in x 50 in
= 2, 700 in ²
The perimeter is simply the distance around the Parallelogram which is:
= 54 + 55 + 54 + 55
= 218 in
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#SPJ1Where can you buy a ruler that is 3 feet long worksheet answer key?
Therefore , the solution of the given problem of expression comes out to be 3 feet long ruler can be bought from yard sale.
What does expression actually mean?An analytical formula must be verified by replacing each parameter with a number or performing mathematical operations. Since 79 + 8 = 87, the response variable in the prior case is the same as 6. We can substitute values for the variables that we are familiar with in order to evaluate the expression.
Here,
Given : a ruler that is 3 feet long
where to buy
thus,
We can find the ruler which is 3 feet long can be bought from yard sale.
Therefore , the solution of the given problem of expression comes out to be 3 feet long ruler can be bought from yard sale.
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A store sells tiles in the shape of a parallelogram. The perimeter of each tile is 29 inches. One side of each tile is 2.5 inches longer than another side. What are the side lengths of the tile?
The shorter side of the tile is 12.5 inches and the longer side is 15 inches.
When you write a number greater than or equal to 1 in scientific notation the exponent of the power of 10 will be?
When writing a number greater than or equal to 1 in scientific notation, the exponent of the power of 10 will be positive.
In scientific notation, a number is represented as a coefficient multiplied by a power of 10. For example, the number 12,000 can be written as 1.2 x 10⁴ in scientific notation.
When the number is greater than or equal to 1, the coefficient will be greater than or equal to 1 and less than 10. The exponent of the power of 10 will indicate the number of places the decimal point must be moved to the right to get the original number.
Since the number is greater than or equal to 1, the decimal point must be moved to the right, resulting in a positive exponent. So, when writing a number greater than or equal to 1 in scientific notation, the exponent of the power of 10 will always be positive.
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7x+28 - Left Side = -6x-24 - Right side
Check left and right side of answer
Answer:
L.S = R.S ( see below)
Step-by-step explanation:
[tex]7x + 28 = -6x-24\\13x = -52\\x = -4[/tex]
L.S
[tex]7(-4)+28 = 0[/tex]
R.S
[tex]-6(-4) - 24 = 0[/tex]
L.S = R.S
x = -4 is correct
What are the values of u and v?
The required values of u = 21° and v = 2 units in the given triangle.
What is the Area of a Triangle?A triangle is a closed shape composed of three angles, three sides, and three vertices. It is one of the most fundamental geometric forms and is represented by the symbol Δ.
The triangle is given in the shown figure, as follows:
We have to determine the value of u and v
In ΔHGF,
∠G = 67°
∠F = 92°
As we know that the sum of interior angles is always 180 degrees in the triangles.
So, ∠u + ∠G + ∠F = 180°
u + 67° + 92° = 180°
u + 159° = 180°
u = 21°
We can see that the bisector HF divides into equal parts EF and FG.
So, EF = FG
This means v = 2
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How do you solve 30 60.90 triangles?
These sides also follow the same ratio a/2 : (a√3)/2: a
We get 1:√3:2. This is the 30-60-90 triangle theorem.
Now, According to the question:
Let's consider an equilateral triangle ABC with a side length equal to 'a'.
Now, draw a perpendicular from vertex A to side BC at point D of the triangle ABC. The perpendicular in an equilateral triangle bisects the other side.
Triangle ABD and ADC are two 30-60-90 triangles. Both the triangles are similar and right-angled triangles. Hence, we can apply the Pythagoras theorem to find the length AD.
[tex](AB)^2 = (AD)^2 + (BD)^2[/tex]
[tex]a^2 = (AD)^2 + (a/2)^2[/tex]
[tex]a^2 - (a/2)^2 = (AD)^2[/tex]
[tex]3a^2/4 = (AD)^2[/tex]
(a√3)/2 = AD
AD = (a√3)/2
BD = a/2
AB = a
These sides also follow the same ratio a/2 : (a√3)/2: a
Multiply by 2 and divide by 'a',
(2a)/(2a) : (2a√3)/(2a): (2a/a)
We get 1:√3:2. This is the 30-60-90 triangle theorem.
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What is ed? enter your answer in the box. units two segments a d and b c intersect at point e to form two triangles a b e and d c e. side a b is parallel to side d c. a e is labeled 2 x plus 4. e d is labeled x plus 4. c d is 6. a b is 9.
The total area of the two triangles is 3 sq units + (-1 sq units) = 2 sq units.
The equation of line a b is y = 2x + 4
and the equation of line d c is y = x + 4
Substituting the y-coordinate of point E, (6) in the equations of line a b and d c, we get:
2x + 4 = 6
x + 4 = 6
Solving the above equations, we get x = 1 and y = 6.
Therefore, the coordinates of point E are (1,6).
The length of side a b is 9 - (2x + 4) = 9 - (2(1) + 4) = 3
The length of side d c is x + 4 - 6 = 1 + 4 - 6 = -1
The length of side a e is 2x + 4 - 6 = 2(1) + 4 - 6 = 2
The length of side d e is x + 4 - 6 = 1 + 4 - 6 = -1
Therefore, the area of triangle a b e is 1/2 (base x height) = 1/2 (3 x 2) = 3 sq units
The area of triangle d c e is 1/2 (base x height) = 1/2 (-1 x 2) = -1 sq units
Therefore, the total area of the two triangles is 3 sq units + (-1 sq units) = 2 sq units.
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Answer:
I am pretty sure it is 8 units.
Step-by-step explanation:
A line of best fit was drawn to the plotted points in a data set below. Based on the line of best fit, for what x-value does y=14y=14?
When Y=14 then x will be 20 for the given linear line (Linear equation).
What is a linear equation ?
A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. The standard form of a linear equation in one variable is of the form
Ax + B = 0
e.g. x-10=0. Here, x is a variable, A is a coefficient and B is constant.
The standard form of a linear equation in two variables is of the form
Ax + By = C
e.g. 2x-4y=10. Here, x and y are variables, A and B are coefficients and C is a constant.
Now,
As we can see from the graph that for values of y and x
y increase 3 points when x increase 5 points
e.g. (5,5) and (10,8)
Following the same trend when y=14 then x will be 20.
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Help fast help I need help quick
On solving the provided question, we can say that the linear function that can be formed is x + 4y= 16 and rate of change in linear function is 13
What is linear function ?Two distinct but related concepts are referred to as linear functions in mathematics. A polynomial function of degree 0 or 1 is a linear function in calculus and related subjects if its graph is a straight line. Any function that depicts a straight line on a coordinate plane is said to be linear. For instance, y = 3x - 2 is a linear function since it depicts a straight line on the coordinate plane. f(x) = 3x - 2 can be used to represent the function since f(x) can be linked to y.
the linear function that can be formed is
x + 4y= 16
also, 2x = 26y
rate of change in linear function is 13
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