4 years ago

Please help. here is a screenshot of the question.

1 answer:

6 0

Hello,

1) the line parallele to ox passing by (1,4) has for equation y=4

f(x)=4 if -1<=x<=1

2) the line pasing through (3,2) and (5,4) has for equation:

y-2=(4-2)/(5-3)(x-3)
==>y=x-3+2
==>y=x-1

f(x)=x-1 if 3<=x<=5.

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Find the surface area of the triangular prism shown below

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Answer:

174 ft^2

Step-by-step explanation:

$area = 2 \times 8 \times 3 + 2 \times 7 \times 5 + 7 \times 8 \\ = 48 + 70 + 56 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ = 174 \: {ft}^{2} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$