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3 years ago

Can you take the square root of both sides of an inequality

1 answer:

6 0

Hi there!

Since square roots are non-negative, Inequality is only meaningful if both sides are non-negative. Hence, squaring both sides was indeed valid.

Similarly, applying a decreasing function toboth sides of an in- equality will reverse it.

Cheers!

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You mow the lawn to earn your allowance. Each time you mow the lawn you earn $12. Write an equation for the number of dollars, d

lidiya [134]

It would simply be d(m)

5 0

3 years ago

Read 2 more answers

Which is a true statement?

julsineya [31]

B. –4.37 < –1.63 is the true statement. -4.37 is less than -1.63

A. –4.28 > –3.56 * should be less than
C. 5.7 < 5.63 * should be greater than
D. -13.90 > 4.63 *should be less than

In dealing with negative numbers, the greater the negative number is, the lesser its value. 4.37 is a greater number than 1.63 in its positive form, however, its negative form give 4.37 a lesser value than 1.63 in its negative form.

7 0

3 years ago

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What is the range of the function f(x) = -|X - 4| + 5?

Law Incorporation [45]

Answer:

Range = (-∞, 5)

Step-by-step explanation:

This is the absolute value function with transformation.

The parent function is f(x) = |x|

This function has a "negative" in front, so it makes it reflect about x axis

The -4 after x makes horizontal translation of 4 units right

the +5 at the end makes the function translate 5 units UP

The graph is shown in the attached picture.

Looking at the graph, we can clearly see the range. The range is the allowed y-values. Hence, we can see that the range is -infinity to 5

answer is not properly given, so i can't choose from the options, but the answer is -∞, 5 to 5

3 0

3 years ago

Write the following as ratio and simplif 3km to 12km

lesantik [10]

Answer:

1:4

Step-by-step explanation:

3:12

((3×1):(3×4))

=1:4

(would love if you could mark me the brainliest :))

3 0

2 years ago

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Jack is building a deck that is 8 ft by 27.63 ft. He has the base built; he just needs to cover the surface with wood. When he g

gulaghasi [49]

The area of the deck is :
A ( deck ) = 8 * 27.63 = 221.04 ft²
The area of the sheet of wood:
A ( sheet ) = 4 * 8 = 32 ft²
221.04 : 32 = 6.9 ≈ 7 ( we need a whole number )
Answer: He should buy 7 sheets of wood to cover the surface of the deck.

5 0

3 years ago