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3 years ago

Please answer this IS MY TEST PLEASE ANSWER PLEASE dont give UP-_-

Mathematics

1 answer:

iren2701 [21]3 years ago

7 0

12. for this the equation is SA = 1/2bh * 4 + l*w so 1/2 * 3*2.5=3.75*4+3*3=15+9=24 so the answer is 24
13. 4*3*2 +3*2 *2 +4*2*2=24+12+16=52 so the answer is 52

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Step-by-step explanation:

Given

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Required

Where and which error did the student make

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$cos\theta = \frac{a}{\sqrt{(a)^2 + (b)^2}}$

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Rationalize the denominator

$cos\theta = \frac{a}{\sqrt{a^2 + b^2}} * \frac{\sqrt{a^2 + b^2}}{\sqrt{a^2 + b^2}}$

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3 years ago

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3 years ago

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