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Serhud [2]
2 years ago
15

Help please I need an answer for this fast

Mathematics
1 answer:
castortr0y [4]2 years ago
6 0

Answer:

B 9, -9

Step-by-step explanation:

x^2 - 81 = 0

Add 81 to each side

x^2 = 81

Take the square root of each side

sqrt(x^2) = sqrt(81)

x = ±9

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Pls help me with this:((​
BlackZzzverrR [31]

Answer:

9. A. One - to - One Correspondence

10. D. None of the above

5 0
2 years ago
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HELP PLEASE!!! ( VERY IMPORTANT TO LOOK AT THE PICTURE)<br><br> A. 9<br> B. 12<br> C. 15<br> D. 21
larisa [96]

Answer:

c

Step-by-step explanation:

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8 0
3 years ago
$7.50 admission; 20% off
kirill [66]
If you were getting 20% off of a £7.50 admission the new price would be £5.
This is due to the fact that 10% is 0.75
You can get 10% by dividing the number by 10.
10% doubled to get 20% is £1.50
7.50 minus the 20% off, 1.50, would be £5.


5 0
3 years ago
Marcel and Floyd are playing games at an arcade. Marcel has $8.25 and is only playing $0.25 games. Floyd has $9.75 and is only p
EleoNora [17]

Answer:

3 games each

Step-by-step explanation:

because $0.75 is 3 times $0.25

Marcel:  0 plays= $8.25, 1 play=$8, 2 plays= $7.75, 3 plays= $7.5

Floyd :    0 plays= $9.75 1 play =$9.00 , 2 plays= $8.25, 3 plays = $7.5

not sure if this is the answer ???

5 0
3 years ago
Read 2 more answers
What is -4(x-3) equal
NeX [460]

Answer:

-4x+12

Step-by-step explanation:

Multiply the -4 by the x and the -12

6 0
3 years ago
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