2 years ago

Need help with this answer please

Mathematics

1 answer:

MrRa [10]2 years ago

5 0

The answer is b i hope this helps

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Find the surface area of the pyramid. The side lengths of the base are equal.

Pachacha [2.7K]

Answer:

A = 177.46

Step-by-step explanation:

$A = lw + l\sqrt{(\frac{w}{2})^{2} + h^{2}} + w \sqrt{(\frac{l}{2})^{2} + h^{2}$

A = 6*6+6root((6/2)^2+11.4^2)+6root((6/2)^2+11.4^2)

A = 177.46

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2 years ago

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70%
12+27+91 = 130
91/130 = .7
.7x100 = 70%
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3 years ago

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nata0808 [166]

Answer:

$A=x^2+12x+27\ units^2$

Step-by-step explanation:

we know that

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The area of a rectangle is equal to

$A=LW$

we have

$L=x+9\ units$

$W=x+3\ units$

substitute

$A=(x+9)(x+3)$

Apply distributive property

$A=x^2+3x+9x+27$

Combine like terms

$A=x^2+12x+27\ units^2$

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3 years ago

If cose<br> =-2/3<br> -, which of the following are possible for the same value of e?

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Answer:

Step-by-step explanation:

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2 years ago

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We know this angle is a 90° or a right angle. So another words we know adding these 2 expressions equals to 90°.

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Remove the parentheses and combine the like-terms:

5x - 5 = 90°

Add 5 on both sides:

5x = 95°

Divide 5 on both sides

x = 19

You answer is x = 19.

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1 year ago