3 years ago

For which equation does it make the most sense to solve by using the square root property?

Mathematics

2 answers:

Lerok [7]3 years ago

6 0

The answer is B. I know this for a fact. (just took the test)

VARVARA [1.3K]3 years ago

4 0

The answer 4x^2-5=20 i just took the test

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If there is the same slope but different y-intercepts can there paths ever cross?

MissTica

If the gradient is the same but there are different y intersects, the straight lines will never cross but they will be parallel. the answer is they will never cross

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4 years ago

Read 2 more answers

85 round to the nearest tenth

Evgesh-ka [11]

90 is the answer for you're question

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4 years ago

Explain why the equation 5|x|-7=7 has only one solution.

son4ous [18]

According to the condition, this equation has <u>two</u> solutions: -14/5 and 14/5.

Short explanation:

5|x|=14; ⇔ |x|=14/5; ⇒

$\left[\begin{array}{ccc}x= -\frac{14}{5} \\x= \frac{14}{5} \\\end{array}$

PS. it's correct, if to substitute the values of 'x' into the condition/equation.

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3 years ago

The length of a rectangle is 9” greater than the width. The area is 36”2. Find the dimensions

Ymorist [56]

Answer:

Step-by-step explanation:

L = W+9

area = LW = 36

(W+9)W = 36

W²+9W-36 = 0

W = -12, 3

-12 is an extraneous solution, so W = 3 inches

L = W+9 = 12 inches

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3 years ago

(a−2b)^3 when a=−4 and b=−12

erma4kov [3.2K]

Answer:

8,000

Step-by-step explanation:

You can simplify it to (-4+24)^3a

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3 years ago