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2 years ago

Another geometry question :D

Mathematics

2 answers:

Nitella [24]2 years ago

8 0

I think it should be c

Nikolay [14]2 years ago

8 0

Answer:

Translated according to the rule (x, y) →(x + 8, y + 2) and reflected across the x-axis

Step-by-step explanation:

The given polygons are translated and then reflected along x or y axis .

To determine the one from the given options the figure is translated and then reflected along x axis .Consider points A and A'.

A (-4,5) ....>A' (4,-7)

If 8 is added to x and 2 to y ordinates we have:

A(-4+8,5+2)= ( 4,7)

If this point is reflected along x axis we have the reflected point as (4,-7) which is point A'.

The same is true for all the other points of the polygon.

Hence, The two transformations are applied to pentagon ABCDE to create A'B'C'D'E is Translated according to the rule (x, y) →(x + 8, y + 2) and reflected across the x-axis.

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Akron Cinema sells an average of 500 tickets on Mondays, with a standard deviation of 50 tickets. If a simple random sample is t

Paha777 [63]

Answer:

Step-by-step explanation:

Assuming the number of tickets sales from Mondays is normally distributed. the formula for normal distribution would be applied. It is expressed as

z = (x - u)/s

Where

x = ticket sales from monday

u = mean amount of ticket

s = standard deviation

From the information given,

u = 500 tickets

s = 50 tickets

We want to find the probability that the mean will be greater than 510. It is expressed as

P(x greater than 510) = 1 - P(x lesser than or equal to 510)

For x = 510

z = (510 - 500)/50 = 0.2

Looking at the normal distribution table, the probability corresponding to the z score is 0.9773

P(x greater than 510) = 1 - 0.9773 = 0.0227

7 0

2 years ago

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A school assembly had 90 students in attendance, and 80% of them were first-graders. How many first-graders were at the assembly

Sav [38]

the answer is 72! Hope this helps! :)

5 0

2 years ago

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Need help ASAP no Rocky

Ahat [919]

Answer:

The length of mid-segment $XY=4$ units

Step-by-step explanation:

Given:

Length of $QR=8$ units

$XY$ is the mid-segment which means the line joining the midpoints of two sides of triangle.

By mid-segment theorem the mid-segment of a triangle is parallel to the third side and half of the length of third side.

So, we can write:

$XY=\frac{1}{2}QR$

$XY=\frac{1}{2}(8)$

∴ $XY=4$ units

∴The length of mid-segment $XY=4$ units

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2 years ago

1) Create a box plot comparing the score of the boyd and girls as best you can

Umnica [9.8K]

Answer:

dk man

Step-by-step explanation:

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2 years ago

A piece of stained glass in the shape of a right triangle has sides measuring 8 centimeters, 15 centimeters, and 17 centimeters.

Mashcka [7]

Answer:

60cm^2

Step-by-step explanation:

1. turn triangle into rectangle measuring 15x8

2. find area of rectangle (area = base*height): 8*15 = 120

3. Find area of triangle (divide rectangle area by 2): 120/2 = 60cm^2

3 0

3 years ago