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AnnZ [28]
3 years ago
6

Solve the system of equations for -2x+2y=4

Mathematics
1 answer:
Greeley [361]3 years ago
8 0
You need another equation to be able to solve this
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A circular pen has an area of 64<img src="https://tex.z-dn.net/?f=%20%20%5Cpi%20" id="TexFormula1" title=" \pi " alt=" \pi " a
Allisa [31]
What we know:
shape is circular
Area=64π yr²
Area=πr²
circumference=2πr

In order to find circumference we need r=radius. We can use the area to find r by solving for r using substitution of the information we know above.

Area=πr²
64π=πr²                         substitution
64π/π=π/πr²                  multiplicative inverse
64=r²
√64=√r²                          properties of radicals
8=r                     We would get two solutions, a positive and negative one                          but we will only use the positive solution since radius is positive

Circumference=2πr
C=2π(8)=16π yards
7 0
3 years ago
Read 2 more answers
-10 + x =18 please help meee
tester [92]
28.................
6 0
3 years ago
Read 2 more answers
An accountant earns 6% simple interest. You want to find the interest earned on $200 after 8 months.
tamaranim1 [39]

Answer:

The interest is $12

Step-by-step explanation:

You just put the percent in a decimal form(6%-0.06)Then you multiply 200 with 0.06. And the answer you get is the interest

Hope that helps :)

5 0
3 years ago
3/4(8x-4)=7x+2, I need to find out the answer
laiz [17]

Answer: x = -5

Step-by-step explanation:

First convert 3/4 to decimal= 0.75

0.75 (8x - 4) = 7x + 2

6x - 3 = 7x + 2

Transpose 7x from right hand side to the left hand side

6x - 7x = 2 + 3

-x = 5

x = -5

I hope this helps.

8 0
3 years ago
Q.3 Write the factors of 28 in circle A and the factors of 32 in circle B. Write
marissa [1.9K]

Answer: The largest common factor of 28 and 32 is 4.

Step-by-step explanation:

The factors of 28 are 1, 2, 4, 7, 14, 28

The factors of 32 are 1, 2, 4, 8, 16, 32

5 0
2 years ago
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