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2 years ago

The Great Pyramid is an example of a (2 examples)

1 answer:

4 0

The Great Pyramid is an example of a 1. A triangular Prisim and a polygon
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A cereal box is an example of a Rectangular prisim </span>or rectangle

A tent is an example of a A triangular Prisim and a polygon

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Mr. Sanchez bought some book s at the book sale, including 15 paperbacks books. 75% of all the books he bought were paperbacks.

goblinko [34]

Answer:

Sanchez bought 20 books.

Step-by-step explanation:

Represent the total number of books purchased by t. Then:

0.75n = 15. Thus, n = 20.

Sanchez bought 20 books.

4 0

3 years ago

What is the solution to this equation?

QveST [7]

Step-by-step explanation:

$10x - 15x + 5 = - 45 + 20 \\ or \: 10x - 15x = - 45 + 20 - 5 \\ or \: - 5x = - 45 + 15 \\ or \: - 5x = - 30 \\ or \: \frac{ - 5x}{ - 5} = \frac{ - 30}{ - 5} \\ or \: x = 6 \\ \\ therefore \: the \: value \: of \: x \: is \: 6.$

<h3> D. The value of X is 6. I hopes</h3><h3> it helps you ☺️.......</h3>

Thank you ☺️

6 0

2 years ago

Solve with Quadratics

leonid [27]

Answer:

x = 1 ± $\sqrt{6}$

Step-by-step explanation:

Given

2x² - 4x = 10 ( divide through by 2 )

x² - 2x = 5

Using the method of completing the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 1)x + 1 = 5 + 1

(x - 1)² = 6 ( take the square root of both sides )

x - 1 = ± $\sqrt{6}$ ( add 1 to both sides )

x = 1 ± $\sqrt{6}$ ← exact solutions

6 0

2 years ago

Find the missing length. Round your answer to the nearest tenth.

Jobisdone [24]

Answer: D. 9.4 units

Explanation: We use the Pythagoras theorem because we know that it’s a right triangle and we have 2 lengths.

8^2+5^2= c^2

89=c^2
c= sqrt 89
c≈9.4 units

5 0

2 years ago

Read 2 more answers

Solve for x <br> -4(5 - x) = (x + 7)

garik1379 [7]

Answer:

x=9

Step-by-step explanation:

4 0

2 years ago