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Oksanka [162]
2 years ago
15

PLZ HELP ME MY MOM WILL TAKE AWAY MY PHONE

Mathematics
2 answers:
agasfer [191]2 years ago
8 0

Answer:

19

Step-by-step explanation:

5² - (2.1 + 7.4) + 3.5

2.1 + 7.4 = 9.5

5² - 9.5 + 3.5

5² = 25

25 - 9.5 + 3.5

25 - 9.5 = 15.5

15.5 + 3.5 = 19

Hope this helped.

tekilochka [14]2 years ago
7 0
It’s 9.8 use a calculator
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Svetllana [295]
Wait how would you even do this?
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2 years ago
The volume of a cylinder is 81 pi in^3 and the height of the cylinder is 1 in. What is the radius of the​ cylinder
ladessa [460]

Answer:

18/20π

Step-by-step explanation:

81π ÷ 1 = 81π

81π ÷2 = 18/20π

You do this because the radius is half of the diameter and you need to get rid of the hight by dividing it from the volume.

7 0
2 years ago
Make y the subject of the formula <br><br> W= x squared - 2yz
AveGali [126]

Answer:

The formula    y = \frac{x^{2} }{2z} + \frac{W}{2z}

Step-by-step explanation:

<em><u>Explanation</u></em>

Given   W = x² - 2 y z

          2 y z = x² + W

Dividing '2z' on both sides , we get

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4 0
2 years ago
Which equation has the same solution as x^2-x+11=8
seraphim [82]

Answer:

There are no real solutions to this equation.

Hope This Helps!

3 0
3 years ago
What is 4 square root 7^3 in exponential form?
Gnesinka [82]

Answer:

Given the radical form: 4\sqrt{7^3}

Use the exponent rules:

\sqrt[n]{a^m} = (a^m)^{\frac{1}{n}} = a^{\frac{m}{n}}

we can write \sqrt{7^3} as:

\sqrt{7^3} = (7^3)^{\frac{1}{2}} = 7^{\frac{3}{2}}

then;

4\sqrt{7^3} = 4 \cdot 7^{\frac{3}{2}}

Therefore, 4\sqrt{7^3} in exponential form is 4 \cdot 7^{\frac{3}{2}}


8 0
3 years ago
Read 2 more answers
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