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alex41 [277]
3 years ago
13

Need help with this question

Mathematics
2 answers:
Dmitrij [34]3 years ago
4 0

Answer:

A) -9

B)-9+-9= -18

C) -8

D) 0

gtnhenbr [62]3 years ago
4 0
The answer is


-9+9


Because it’s a -9 and you’re adding 9 it is 0.

So the answer is -9+9

MARK ME BRAINLIEST PLEASE!!!!!!
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What is the area of the following circle if the diameter is 2?
gulaghasi [49]

Answer:

Area of a circle=πr²

radius is half of the diameter

1/2×2=1

π1²

22/7×1

3.1415926535897932

~3.14

7 0
3 years ago
Two different 2 digit numbers round to 70 to the nearest 10.The sum of the two numbers is 136.What could the two numbers be?
belka [17]

Answer:

Step-by-step explanation:

If they can be rounded to 70 to the nearest 10s. Then they are from 65 to 74.

Their sum is 136.

If we use 136 divided by 2 we get 68.

Since they're distinct, so one can be 67 and one can be 69

3 0
3 years ago
Please Help me, I will give brainiest and 100 points
8_murik_8 [283]

Answer:

3242

Step-by-step explanation:

6

7 0
2 years ago
Follow the steps to finish solving the equation -3x+18=7x
Svet_ta [14]

Answer:

x = 1.8

Step-by-step explanation:

We have the equation -3x + 18 = 7x. First we do your step 1, and get: 18 = 10x. When doing your step 2, we divide both sides by 10 to isolate x alone. 18/10 = 1.8. X = 1.8

6 0
3 years ago
The sum of the area of 2 circles is 80pi square meters. Find the length of a radius of each circle if one of them is twice as lo
IgorC [24]
80p=pr^2+p(2r)^2
80p=pr^2+4pr^2
80=r^2+4r^2
80=5r^2
16=r^2
r=4 for the smaller circle´s radius, and 8 is the larger circle´s radius.

Have a nice day, I hope this was helpful :D
8 0
3 years ago
Read 2 more answers
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