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2 years ago

9

The surface area (SA) of a cube with a as the length of each of its sides is given by the formula . If the surface area is known

, how can you rewrite the formula to find its side?

1 answer:

nignag [31]2 years ago

4 0

Answer:

Step-by-step explanation:

1 surface area of the cube is s*s.

There are 6 faces on such a cube.

Area = 6*s^2 Divide by 6

Area/6 = 6s^2 / 6 Do the divsion

Area/6 = s^2

s = sqrt(area/6)

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A Wooden board is leaning against the house the base of the board is 10 feet from the base of the house and the base of the boar

astra-53 [7]

Answer: 12.20 feet.

Step-by-step explanation:

Observe in the figure attached that a right triangle is formed.

Then, you need to remember the identity:

$cos\alpha=\frac{adjacent}{hypotenuse}$

In this case you can identify that:

$adjacent=10\\hypotenuse=x$

$\alpha=35\°$

Then, to find the length of the wooden board (x), you need to substitute values and solve for x.

Therefore, you get:

$cos(35\°)=\frac{10}{x}\\\\(x)(cos(35\°))=10\\\\x=\frac{10}{cos(35\°)}\\\\x=12.20$

The length of the wooden board is: 12.20 feet.

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3 years ago

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Bond [772]

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2 years ago

A positive <br> B negative <br> C none<br> D multiple

egoroff_w [7]

The answer is positive because its is going in the positive column

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Read 2 more answers

Please Help me answer all 4 questions with a full explanation so I can solve the rest on my own.

Nata [24]

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1 year ago

What is lim x → 9+ ( x - 9/| 9 - x | )

SIZIF [17.4K]

Answer:

The answer is nonexistent

Step-by-step explanation:

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2 years ago