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Gemiola [76]
3 years ago
12

Someone please help me with this problem

Mathematics
1 answer:
iren [92.7K]3 years ago
7 0
Check the picture below.

so the rectangular prism, or that box, is really just 6 rectangles stacked up to each other at the edges, notice

front and back are just two 9x5 rectangles

left and right are just two 5x4 rectangles

top and bottom are just two 9x4 rectangles

get the area of all 6, sum them up, and that's the area of the box.

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Someone please help I'll give brainliest for questions 11 and 12
Nostrana [21]

Answer:

Step-by-step explanation:

11.

to find floor area:

= 8 x 8

= 64

= Floor is 64m.

to find carpet: 8 x 8 x 75%

= 64 x 75%

= 64 x 0.75

= 48

a. The dimensions of the carpet are probably 8 by 8.

b. The area of the floor not covered by carpet is 64, hence 8 x 8.

12.

A perfect square is a square that has demensions that is a number multiplied by itself.

Eight times eight fits the requirements, so this square is in fact perfect.

Have a lovely day!

4 0
3 years ago
It takes Jada 20 minutes to walk to school. It takes Andre 80% as long to walk to school. How long does it take Andre to walk to
dsp73
I believe the answer is 100 minutes.
7 0
3 years ago
The sum of a number and 9 is multiplied by -2 and the answer is -8
nadya68 [22]
9(-2)+x=-8
And x would be positive 26
7 0
4 years ago
Evaluate the function f(x) = x2 + 3x for both of the following:
marissa [1.9K]
F(x)=x²+3x

f(0)=0²+3*0=0+0=0

Answer: f(0)=0

f(4)=4²+3*4=16+12=28

Answer: f(4)=28
6 0
3 years ago
7/4x-5 + 2y - 3.5 + -1/4x + 5
romanna [79]
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5 0
3 years ago
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