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Leno4ka [110]
3 years ago
8

Solve the equation by using square roots. 2 x 2 − 9 = 11

Mathematics
1 answer:
VashaNatasha [74]3 years ago
3 0

Answer:

x = ± \sqrt{10}

Step-by-step explanation:

Given

2x² - 9 = 11 ( add 9 to both sides )

2x² = 20 ( divide both sides by 2 )

x² = 10 ( take the square root of both sides )

x = ± \sqrt{10} ← exact solutions

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zloy xaker [14]

Answer:

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Step-by-step explanation:

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4 years ago
How many square feet are there in a rectangular-shaped building that is 34 feet wide and 72 feet long?
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The area of the rectangular-shaped building is 2448 square feet.

<h3>What is the area of the rectangle?</h3>

The space occupied by any two-dimensional figure in a plane is called the area. The space occupied by the rectangle in a two-dimensional plane is called the area of the rectangle.

Given that a rectangular-shaped building that is 34 feet wide and 72 feet long. The area of the rectangle will be calculated as below:-

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6 0
1 year ago
Determine the slope of the line that passes through the points:
miskamm [114]

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The slope of the line is 4.

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Recall that slope = rise over run:  rise / run.

From the table we see that if x changes from 0 to 4, a run of 4, y changes from -1 to 15, a rise of 16, the slope of this line must be

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3 years ago
What is the value of n in 9x27+2x31-28=n
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4 years ago
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