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julsineya [31]
3 years ago
14

8. Multiply 7c? (a? + 5b + 7c). ? = To the second power

Mathematics
1 answer:
Travka [436]3 years ago
3 0
I’m not sure if this is correct but i got, 7c^2c^2 + 49c^4 + 35bc^2
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4. Which expression is a simplified form of -5(8x)?<br> a. 40x<br> b. -40%<br> C. 3x<br> d. -40x?
Sedbober [7]

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Option d

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5 0
3 years ago
Please help . I’ll mark you as brainliest if correct!!!!!!
STatiana [176]

Answer:

3 are mushed

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7 0
4 years ago
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A cylinder has a volume of 540 cm cubed. if the height of the cylidner is 15 cm, find the radius.
Tamiku [17]
You should always remember that a cylinder consists of circles that are all over each other to form the height of the cylinder.
So the volume of the cylinder= the area of the surface circle* the height.
V=540=\pi r^2*h= \pi r^2*15
Then,
r^2= \frac{540}{15 \pi }
So, r= \sqrt{\frac{540}{15 \pi }}
radius is approximately 3.4cm
*If you cannot see the equations properly please wait till it downloads or refresh the page*
Hope this helps.
6 0
3 years ago
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