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fomenos
2 years ago
6

Simplify the expression -9-10

Mathematics
2 answers:
denis23 [38]2 years ago
5 0

Answer:

-19

Step-by-step explanation:

When you subtract from a negative it becomes a bigger number in the negatives. Subtract from a negative is also kind of like adding the 2 numbers then making it negative.

<u>Example:</u>

-2 - 2 = -4

2+2=4 making it negative will give you the answer of -4

-9-10 is like 9+10 which equals 19. Making it negative will give you the answer of -19

podryga [215]2 years ago
5 0

Answer:

This question answer is -19

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What is the answer to x2 = 121.
jolli1 [7]

Answer:

11 if you mean x^2

Step-by-step explanation:

Since we are solving for x, we need to just get x by its self. The only thing we have to do is get rid of the exponent of (^2). to do this, we have to take teh square root of both sides:

The square root of x^2 is x

The square root of 121 is 11

So the asnwer is x = 11

5 0
2 years ago
Read 2 more answers
Evaluate 3 - 24 = 8 + 4^2.<br> A 0<br> B 2<br> C 16<br> D 24
oee [108]

Answer:

-21=24

Step-by-step explanation:

Subtract 24 from 3

-21=8+2^2

Raise 4 to the power of 2

-21=8+16

Add 8 and 16

-21=24

7 0
2 years ago
The radius is 10 units, and each layer is one unit high. What is the volume of the cylinder in cubed units?​
alexandr1967 [171]

Answer:

Volume of cylinder is 6285.71 square units.

Step-by-step explanation:

Given the radius of cylinder 10 units. The height is twice its radius. we have to find its volume.

r=10 units

⇒ Diameter, d = 20 units

Also given height is twice its radius.

⇒ Height=2(r)=2(10)=20 units

<h2><em><u>Volume of cylinder=πr^2h</u></em></h2>

= 22/7 × 100×20

=22/7 × 2000

= 44000/7

= 6285.71square units.

hence, volume of cylinder is 6285.71 square units.

6 0
1 year ago
Read 2 more answers
Write an algebraic expression for the phrase "thirty less than the product of a number y and four".
zzz [600]

Answer:

30-(y*4)

Step-by-step explanation:

replace thirty with 30. less than is - (minus). the product of a number y and four. replace four with 4. the product is the answer of the multiplication problem. so the multiplication problem here would be y*4. so the full answer is

30-(y*4)

8 0
2 years ago
Read 2 more answers
The sum of the digits of a two-digit number is 9. When the digits are reversed, the new number is 9 more than the original numbe
Paul [167]

9514 1404 393

Answer:

  d.  45

Step-by-step explanation:

You can check the offered answers. You will find that the difference from reversing the digits will only be 9 if the digits differ by 9/9 = 1.

The original number is 45.

__

<em>Check</em>

  45 + 9 = 54 . . . with the digits reversed

4 0
2 years ago
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