2 years ago

Solve by completing the square

Mathematics

1 answer:

HACTEHA [7]2 years ago

5 0

Answer: x = − 1 ± i√ 23

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A rectangular swimming pool with length b and width h is surrounded by a walkway that is 3 feet wide. Which equation below could

Katarina [22]

The equation that can be used to find the area of the walkway is A = 3h+3b+9.

<h3>What is a rectangle?</h3>

A rectangle is a plane shape that has pair of opposite sides equal and parallel.

To find the equation that could be used to find the area of the walkway, we use the formula below.

Formula

Area of the walkway(A) = Area of the swimming pool and the walk- area of the swimming pool

A = [(h+3)(b+3)]-(hb)
A = hb+3h+3b+9-hb
A = 3h+3b+9.

Hence, The equation that can be used to find the area of the walkway is A = 3h+3b+9

Learn more about rectangles here: brainly.com/question/17297081

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2 years ago

Camille simplified an expression as shown. discuss why this method is justified. <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B

Burka [1]

We know that
$\frac{ab}{cd} = \frac{a}{c} \times \frac{b}{d}$

Therefore
$\frac{6\times10^{5}}{3\times10^{2}} = \frac{6}{3} \times \frac{10^{5}}{10^{2}} =2 \times 10^{5-2} = 2 \times 10^{3} = 2000$

This verifies that Camile's method is justified.

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3 years ago

A gym employee is paid monthly. After working for three months, he had earned $4,500. To determine how much money he will make o

sladkih [1.3K]

The answer is 7,500.

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3 years ago

A salesperson earns a salary of $40,000 per year plus 7% commission on sales of $120,000. what is his total income?

lesya [120]

40,000 + 0.07(120,000) =
40,000 + 8,400 =
$ 48,400 per year <===

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3 years ago

Solve the system given:

blsea [12.9K]

the answer to your question is:

D (2, -6)

i hope this was helpful ;)

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3 years ago