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Charra [1.4K]
2 years ago
8

PLZZ HELP IN THIS :((

Mathematics
1 answer:
UNO [17]2 years ago
4 0

Answer:

4 i think i did this yesterday

Step-by-step explanation:

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Can someone help me with this problem
fredd [130]
So a triangle angles must add up to 180. You would subtract 180 by the two known angle which are 90 and 30. Then if you subtract them you would get 60. The final answer is 60
4 0
3 years ago
Find the part what is 160% of 13.7
lidiya [134]
13.7 is 100% I like to divide by 100 to get the 1%, then multiply by the percent i am trying to find, lets see if I'm right.
13.7/10 = .137
.137= 1/100
.137 x 160 = 21.92
Your answer is 21.92, 21.92 is 160%
Hope this helped!
5 0
3 years ago
The mass of a an atom of helium is 6.65 x 10^−24. Use scientific notation to express the mass of 250 helium atoms.
melisa1 [442]
<span>1.6625 x 10−21</span>

<span>mass of one helium atom x 250 </span>
Express 250 as 2.50.
(6.65 x 10−24)(2.50 x 102)
16.625 x 10<span>−22</span>
5 0
3 years ago
Read 2 more answers
Please help me please
hram777 [196]

Answer:

detailed explanation is in image

Step-by-step explanation:

ans is 60 unit²

4 0
2 years ago
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Im really struggling. please help me <br>​
Wittaler [7]

Answer:

A. x=6   B. x=4.5   C. x-35   D. x=13

Step-by-step explanation:

For A and B, divide the numbers you have. For C and D, multiply the numbers you have.

5 0
3 years ago
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