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vazorg [7]
3 years ago
11

X^2 =80. Write the exact answer using radicals

Mathematics
1 answer:
DanielleElmas [232]3 years ago
8 0
Answer:

4√5, -4√5

Step-by-step explanation:

x^2 = 80

√x^2 = √80

x = 8.9 or 4√5
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A. 99.87%

Step-by-step explanation:

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6 0
3 years ago
True or false ???????????????please help
Dovator [93]
1  True   because 19^3  = 6859
2. False
3. True because 8000 ^1/3  can be written as 100^1/3 * 8^1/3
4 False 
5 True because they are both = 15

If you have a scientific calculator you can check these out yourself
7 0
3 years ago
9 Quesions, 30 Points!!!! PLEASE HELP!
Sloan [31]
Note: I'm afraid I can't put the work for the answers, for lack of time =/
============================================================

1. 0 or -3

2. 0 or 4

3. -2 or 3

4. 0 or 1/2

5. -2 or 3

6. 0 or 5

7. 0 or 7

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9. Substitute 0 for h in "h = -16x^2 + 16x" then solve for x
0 = -16x^2 + 16x

<span>Subtract -16x^2+16x from both sides.
</span><span>0−<span>(<span><span>−<span>16x2</span></span>+16x</span>)</span></span>=<span><span><span>−<span>16<span>x2</span></span></span>+<span>16x</span></span>−<span>(<span><span>−<span>16x2</span></span>+16x</span>)
</span></span><span><span>16<span>x2</span></span>−<span>16x</span></span>=<span>0
</span>
Factor the left side of the equation
<span><span>16x</span><span>(<span>x−1</span>)</span></span>=<span>0
</span>
Set factors to equal 0
<span><span>16x</span>=<span><span><span>0<span> or </span></span>x</span>−1</span></span>=<span>0
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3 0
3 years ago
X + y = 3<br><br> 2x + 2y = 6
STALIN [3.7K]

Answer:

x = Infinite answers.

y = Infinite answers.

Step-by-step explanation:

x + y = 3

2x + 2y = 6

2x + 2y = 6

2x + 2y = 6

=> Therefore, x and y have infinite values that can fit the equation.

Hoped this helped.

4 0
3 years ago
Is it possible for a segment to have more than one bisector? Explain your reasoning.
lord [1]
Yes.

A bisector of a line segment is a line which divides the line segment into two equal parts.
A bisector of a line can divide the line in many different ways forming different angles.
A bisector is said to be a perpendicular bisector if the angle at the intersection of the two lines is 90 degrees.
But, there are several other bisectors that are not perpendicular bisectors.

Therefore, <span>it is possible for a segment to have more than one bisector.</span>
6 0
3 years ago
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