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Valentin [98]
3 years ago
8

What is the surface area of the rectangular prism below?

Mathematics
2 answers:
romanna [79]3 years ago
7 0

Answer:

64 cm^2

Step-by-step explanation:

surface area formula: 2(lw+wh+lh)

2(4*4+4*2+4*2)

2(16+8+8)

2(32)

64 cm^2

Irina-Kira [14]3 years ago
7 0

Answer:

SA= 64cm^2

Step-by-step explanation:

There are 4 rectangles with dimensions 2 and 4, and 2 rectangles with dimensions 4 and 4

4(2x4)+2(4x4)=64cm^2

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The surface area will increase by a factor of 49/16
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What is the result converting 81 inches to feet?
scoundrel [369]
1 foot is 12 inches. So just divide 81 by 12. 
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8 0
3 years ago
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B. The sum of three numbers is 51. The second number is three more than the first number, and the third number is
Svetach [21]

Answer:

12, 15, 24

Step-by-step explanation:

Let 1st # = x

Let 2nd # = x+3

Let 3rd # = 2x

Your equation is: x + (x+3) + 2x = 51

Add up all the x: x + x +3 +2x =51

Subtract 3 from both sides: 4x + 3 - 3 = 51 - 3

Divide 4 from both sides: 4x / 4 = 48 / 4

Your 1st number is x = 12

For the 2nd # it is 3 more than x so 12 + 3 = 15

For the 3rd # it is 2 times x so 2(12) = 24

Check your answers by adding up the numbers you solved: 12 + 15 +24 = 51

Does it equal to 51 as stated in the question? Yes, answers check out.

7 0
2 years ago
What is the value of tan x°?
dmitriy555 [2]
Hi there!

\tan(x)  =  \frac{opposite \: side}{adjecent \: side}
\tan(x)  =  \frac{8}{6}
\tan(x)  = 1 \frac{1}{3}

x = 53.1
Therefore tan x° = 1 1/3 and x = 53.1°

8 0
3 years ago
What early human development was necessary for survival in cold environments?
AlekseyPX
I thought it would be c but try b or a
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3 years ago
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