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Vanyuwa [196]
3 years ago
15

How do you solve this kind of problem?

Mathematics
2 answers:
trasher [3.6K]3 years ago
4 0
-x•(83x-30)

Try and see if that's correct



Y_Kistochka [10]3 years ago
3 0
I hope this helps you

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How do I get the answer to this math problem n + 7 < -3 what is the formula for the math problem
laiz [17]
If I understand the question, you have to get n alone. in this case, you have to subtract 7 from both sides, resulting in n (is less than) -10
8 0
3 years ago
Don't go by my answers pls
Illusion [34]

Answer:

19)  ( \frac{-2}{5})^2 = \frac{4}{25}

20) -9^{2} = -81

21)  2^{4} = 16

Step-by-step explanation:

The only wrong ones are

19)  ( \frac{-2}{5})^2 = \frac{4}{25}

20) -9^{2} = -81 ... negative is not inside a parenthesis that's why it is still negative

21) you can add another way is 2^{4} = 16

Everything else looks good.  Great job!

4 0
3 years ago
What is the area of the semi circle if the diameter is 10 cm
Fudgin [204]

Answer:

39.25 cm

Step-by-step explanation:

The formula for a circle is pi x radius x radius.

So to get the radius, you multiply 10 and 1/2.  You should get 5.  Then you multiply 5 by 5.  You should get 25.

Then you multiply 3.14 and 25.  You should get 78.5.

The last step is to divide 2 by 78.5. You should get 39.25

3 0
3 years ago
Read 2 more answers
-4= 7x-(-1) / -8<br><br> Solve for x <br><br> (Solving multi step equations)
Evgen [1.6K]
Multiply both sides by -8.
Then add the one to both side to cancel it out and get 7x by itself
Then divide the whole thing by 7. So it’ll look like this: 32+1=7x and then add the one then divide by 7
4 0
3 years ago
What is the time that is 9 hours and 40 minutes before 4:25 A.M.
sergey [27]
4:25A.M.-9h=7:25P.M.\ yesterday\\\\40min=25min+15min\\\\7:25P.M.-25min=7:00P.M.\\\\7:00P.M.-15min=\boxed{6:45P.M.\ yesterday}
4 0
3 years ago
Read 2 more answers
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