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Cerrena [4.2K]
3 years ago
13

I need help finding the equation. ASAP! I need the center, Radius and the Radius^2

Mathematics
1 answer:
Rashid [163]3 years ago
8 0

I think the radius is 7 <u><em>not 100% sure</em></u>

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Paul has $30,000 to invest. His intent is to earn 15% interest on his investment. He can invest part of his money at 8% interest
jeka94

Answer:

Amount invested at 8% is $9000 and amount invested at 18% is $21000.

Step-by-step explanation:

Let amount invested at 8% be x.

Let amount invested at 18% be y.

We get the 1st equation as:

x+y=30000       ........(1)

We get the second equation as:

0.08x+0.18(y)=0.15\times30000

=> 0.08x+0.18y=4500

or getting rid of the decimal by multiplying by 100 on both sides.

8x+18y=450000          ........(2)

Multiplying (1) by 8 and subtracting from (2) we get

10y=210000  

So, y = 21000

And x+21000=30000

x = 30000-21000

So, x = 9000

Therefore, amount invested at 8% is $9000 and amount invested at 18% is $21000.

6 0
3 years ago
Find the area of a square where each side measures 5.4 ft.
loris [4]
Area = Length x Height
Area = 5.4 x 5.4
Area = 29.16
8 0
3 years ago
Read 2 more answers
Evaluate 12 ÷ (-3)(2) + 5<br><br> -13<br> 3<br> -3
Alex_Xolod [135]
The answer is 3 because -3 times 2 is -6 , than 12 divided by -6 is -2 , than -2 plus 5 is 3 .
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Four students working in a group are trying to find a rational number between
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Answer:

d

Step-by-step explanation:

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3 years ago
What are the intercepts of the line X - 3Y = 9? A. X - intercept: -3 ; Y - intercept: -9 B. X - intercept: 3 ; Y - intercept: 9
masya89 [10]
X-3y=9
-3y=-x+9
Divide by -3
Y=1/3x+3
Slope is 1/3x
Y intercept is 3
X intercept is 9
7 0
4 years ago
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