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2 years ago

Will mark brainiest answer ASAP

Mathematics

1 answer:

Vlad1618 [11]2 years ago

5 0

You're just simply multiplying them by 2 because the scale factor being applied is 2. So..

P' Q' = 4 cm
A' B' = 3 cm
M' N' = 6 cm

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Points B and B' have symmetry with respect to P. Find the coordinates of P when B is (2, 8) and B' is (2, 2). A. (2, 5) B. (0, 5

Alecsey [184]

Answer:

A. (2, 5)

Step-by-step explanation:

If B and B' have symmetry, then P is a midpoint between those points. We can determinate the location of point P by using the midpoint equation, whose vectorial form is:

$P(x,y) = \frac{1}{2}\cdot B(x,y)+\frac{1}{2}\cdot B'(x,y)$ (Eq. 1)

If we know that $B(x,y) = (2,8)$ and $B'(x,y) = (2,2)$ , then the location of P is:

$P(x,y) = \frac{1}{2}\cdot (2,8)+\frac{1}{2}\cdot (2,2)$

$P(x,y) = (1, 4)+(1,1)$

$P(x,y) = (2, 5)$

Which corresponds to option A.

7 0

2 years ago

Which expression can be used to find the volume of the sphere?

Kryger [21]

Answer:

They used 3.14 for pi:

$V=\frac{4}{3} \pi r^3$

$V=\frac{4}{3} (3.14)(5)^3$

Step-by-step explanation:

$V=\frac{4}{3}\pi r^3$ is the volume of a sphere with radius r.

I think that is the diameter given in the picture.

The radius is half the diameter.

So the radius is 5 since the diameter is 10.

Plug in this gives you:

$V=\frac{4}{3} \pi (5)^3$

4 0

2 years ago

Read 2 more answers

Convert 12 7/12 to a common number

o-na [289]

As a decimal it is 0.58

8 0

2 years ago

Read 2 more answers

In a class⅗ of the children are going to special event If there are 30 children in the class,how many are going

irinina [24]

Answer:

Step-by-step explanation:

3/5 x 30

(3 times 30)divided by 5

= 18 children are going.

Hope this helps:-)

4 0

2 years ago

Sally spelled 2 words incorrectly out of 20 spelling words on the test. What percent grade did Sally get on the test?

Tom [10]

Answer:

90%

Step-by-step explanation:

So Sally gets 18/20 of the questions correct then you need to make the denominator of the fraction to 100 which makes a percent. So you multiply both the numerator and denominator by 5:

90/100

which is equal to 90%

Hope this helps!

7 0

2 years ago