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4 years ago

Please help me I’ve been struggling

Mathematics

1 answer:

inessss [21]4 years ago

8 0

Answer:

147cm³

Step-by-step explanation:

Bottom rectangular prism: 3x4x6=72

Top rectangular prism: 5x5x3=75

72+75=147cm³

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Dilate a triangle with vertices (0,0), (0,2) and (2,0) using the scale factor k=3. What is the value of the ratio (new to origin

seropon [69]

Answer:

Part a) The ratio of the perimeters is $3$

Part b) The ratio of the areas is $9$

Step-by-step explanation:

Part A) What is the value of the ratio (new to original) of the perimeters?

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

x-----> the perimeter of the new triangle

y-----> the perimeter of the original triangle

$z=\frac{x}{y}$

we have

$z=3$

substitute

$\frac{x}{y}=3$

Part B) What is the value of the ratio (new to original) of the areas?

we know that

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

Let

z-----> the scale factor

x-----> the area of the new triangle

y-----> the area of the original triangle

$z^{2}=\frac{x}{y}$

we have

$z=3$

substitute

$\frac{x}{y}=3^{2}$

$\frac{x}{y}=9}$

3 0

3 years ago

What is a set of three numbers that have a gcf of 13?

ipn [44]

There are an infinite number of correct answers to that question.
Here are 5 answers ... one for each point:

13, 26, 39

13, 39, 52

13, 39, 130

65, 91, 117

39, 169, 299

4 0

3 years ago

Jennifer is buying party supplies. She is planning on buying twice as many balloons as noisemakers. The number of napkins Jennif

pishuonlain [190]

Answer:

808 over 25 as a faraction

Step-by-step explanation

a quarter of 65 is 16 4 over 25

16 4 over 25 times 2 808 over 25 as a fraction

4 0

3 years ago

Can anyone help me on this? I need an exact answer please no guesses

Maksim231197 [3]

x = 32°

The triangle has 2 equal sides and is therefore isosceles, thus the 2 base angles are also congruent.

The 2 base angles are of size x°

x = $\frac{180 - 116}{2}$ = $\frac{64}{2}$ = 32

6 0

3 years ago

Read 2 more answers

The height, h in feet, of a tennis ball that a player hit upward can be modeled by the equation h = 80t – 16t² , where t is time

ANTONII [103]

Here's link $^{}$ to the answer:

bit. $^{}$ ly/3gVQKw3

7 0

3 years ago