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3 years ago

8

The surface area of a square pyramid is 84 square inches. The side length of the base is 6 inches. What’s the value of the heigh

t

1 answer:

Pavel [41]3 years ago

4 0

Answer:

I believe the height of this would be 15.87 inches!

Step-by-step explanation:

Please correct me if I'm wrong! :)

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when you reverse the digits in a certain two-diget number you increase it value by 27. What is the number if the sum of its digi

Fynjy0 [20]

The number is = 10x+y
if reverse the digits, the number is: 10y+x
The sum fo its digits is = x+y=5
I suggest this system of equations:
(10y+x)-(10x+y)=27 ⇒9y-9x=27
x+y=5
We can solve this system of equations by equaliztion method
x=5-y

9y-9(5-y)=27
9y-45+9y=27
18y=27+45
18y=72
y=72/18
y=4

x=5-y
x=5-4=1

The number is: 10x+y=10(1)+4=14

Answer: the number is 14

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3 years ago

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KELP! Use the terms from the word bank to answer the question. Terms can be used more than once or not at all.

Ghella [55]

How can am I suppose to answer the this without the word bank or the questions.

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3 years ago

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Help me on this math question

Blababa [14]

Answer:

$\huge \boxed{X=30}$

B. 30

Step-by-step explanation:

First, you multiply by 5 from both sides of equation.

$\displaystyle \frac{x}{5}=6\times5$

Simplify, to find the answer.

$\displaystyle 6\times5=30$

$\huge \boxed{X=30}$ , which is our answer.

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3 years ago

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Calculate the constant of proportionality, k, for the given table.

yan [13]

Answer:

k = y/x

Step-by-step explanation:

1/5, 2/10, 3/15 . . . all equal to 1/5 which is what the value of k is; 'k' stands for constant of proportionality

3 0

3 years ago

Ivan bought a box of macadamia nuts to bring home from his trip.

Agata [3.3K]

Answer: B. 140 cubic inches.

Step-by-step explanation:

The question is asking you to find the volume of the rectangular prism.

You can find this by using this formula:

$V = w*h*l$

Where w is the width, h is the height, and l is the length.

Substitute the sides of the rectangular prism into the equation:

$V = 3.5 * 10 * 4\\\\V = 140$

The volume of the prism is 140 cubic inches.

The correct answer is B.

4 0

3 years ago