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2 years ago

What is the surface area of the rectangular prism below? With sides 8 ,8 , 19

Mathematics

1 answer:

Lyrx [107]2 years ago

7 0

Answer:

736

Step-by-step explanation:

(2*(8*8))+(2*(8*19))+(2*(19*8))=A

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How many square feet of carpet will we need for this hole??

vaieri [72.5K]

Bottom = 2x5 = 10ft
Middle = 2x6 ( 4+2) = 12
Top 4x2= 8
10ft+12ft+8ft= 30ft squared

6 0

3 years ago

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

Jerome photographed an aquarium that measured 12 inches by 18 inches by 24 inches. Lim photographed an aquarium that was 12 inch

8090 [49]

Answer:

the answer is 864 in3

Step-by-step explanation:

Jerome photographed an aquarium that measured 12 inches by 18 inches by 24 inches.

So V=LxWxH....

12 x 18 x 24= 5,184

Then...

Lim photographed an aquarium that was 12 inches by 30 inches by 12 inches.

So= V=LxWxH

12 x 30 x 12=4,320

And they need to see who has more so 5,184-4,320=864in3

I hope this helps also Into Math said it was correct :)

6 0

2 years ago

What is (12.2a + 9.7b) – (18.1b – 0.2a) – (6.7a + 6.8b), simplified?

timurjin [86]

Answer:

B. 5.7a – 15.2b

Step-by-step explanation:

Took the assignment

5 0

2 years ago

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The cube shown has side length 0.7 metres.

Vinil7 [7]

Answer:

294cm^2

Step-by-step explanation:

0.7*0.7=0.49

0.49*6=2.94m

294cm^2

4 0

3 years ago

Read 2 more answers