4 years ago

Two rectangular prism each have a surface area of 600 in.² what are the possible dimensions of the prism?

1 answer:

8 0

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I just need help with this math question

Volgvan

Ok so BFD is a 90 degree angle. So you know you have 43 in one of the spaces so that means all you have to do is take 90 and minus 43 which is 47.

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ElenaW [278]

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Step-by-step explanation:

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3 years ago

If x < 5, then which of the following must be true?

pychu [463]

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4 years ago

Prove the identity (sin6x)/(1+cos6x)=tan3x.

Vikentia [17]

Use double angle identity
$sin(2x) = 2 sin x cos x \\ \\ cos(2x) = 2cos^2 x - 1$

We can relate '6x' to '3x' in the same way since 6 is 2*3.
$sin(6x) = 2 sin (3x) cos (3x) \\ \\ cos(6x) = 2cos^2 (3x) - 1$

Now sub into left side of identity. Simplify until it equals right side.
$\frac{2 sin(3x) cos(3x)}{1+(2cos^2 (3x) -1)} = \frac{2 sin(3x) cos(3x)}{2cos^2 (3x) } = \frac{sin(3x)}{cos(3x)} = tan (3x)$

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4 years ago

Item 5

Xelga [282]

Answer:

4 (-1-11) + 2 (17)

Answer 2 is -14

Step-by-step explanation:

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3 years ago