4 years ago

(32 minus 20) divided by 4

Mathematics

2 answers:

aalyn [17]4 years ago

8 0

The answer is 3. I hope this helps!

Drupady [299]4 years ago

3 0

32-20= 12/4=3 three is your final asnwer

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skelet666 [1.2K]

Answer:

option D. 126 cm

Step-by-step explanation:

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

In this problem

Triangles PQR and XYZ are similar by AA Similarity Theorem

$\frac{XY}{PQ}=\frac{YZ}{QR}=\frac{XZ}{PR}$

Let

z ---> the scale factor

$z=\frac{XY}{PQ}$

substitute the given values

$z=\frac{30}{5}=6$

step 2

Find the perimeter of triangle XYZ

we know that

If two figures are similar, then the ratio of its perimeters is equal to the scale factor

Let

z ----> the scale factor

p_1 ----> the perimeter of triangle XYZ

p_2 ---> the perimeter of triangle PQR

$z=\frac{p_1}{p_2}$

The perimeter of triangle PQR is

$p_2=5+10+6=21\ cm$

we have

$z=6\\p_2=21\ cm$

substitute

$6=\frac{p_1}{21}$

$p_1=6(21)=126\ cm$

therefore

The perimeter of triangle XYZ is 126 cm

5 0

4 years ago

A rectangular plot of grounds is 10 meters longer than it is wide. It’s area is 10,000 square meters. Which equation will help y

mote1985 [20]

Answer:

i'll say the second one

Step-by-step explanation:

8 0

3 years ago

Can some one help me with geometry

Anuta_ua [19.1K]

Um, what about geometry? What problem?

7 0

3 years ago

A surveyor measures the lengths of the sides of a triangular plot of land. What is the measure of the angle of the triangular pl

SVEN [57.7K]

The second one is correct

4 0

4 years ago

Read 2 more answers

Find all solutions by factoring.<br> c? + 13c + 40 = 0

Karolina [17]

Answer: c = -5, -8

Step-by-step explanation:

c^2 +13c+40=0

(c+5)(c+8)=40

c = -5, -8

3 0

3 years ago