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Minchanka [31]
3 years ago
12

Math hw help simplifu the problem by combining like terms

Mathematics
1 answer:
denpristay [2]3 years ago
5 0
5.) -4b-15
6.) 13ac-4a+8b
7.) 4a-21b
8.) -14y
9.) -2x+21y
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Find the surface area of a cylinder with the height of 10 inches and a base diameter of 6 in ​
sweet-ann [11.9K]

Answer:

339.24

Step-by-step explanation:

To find the surface area, you will need to the the area of the base of the cylinder. To do that, use the formula A=pi (r)^2

The radius is half the diameter do r=3

3.14(3)^2 should give you about 28.27.

This is the area of the top and bottom of the cylinder.

Now, do 28.27x10=282.7 to find the height surface area.

282.7+28.27+28.27=Surface area.

SA= about 339.24

4 0
2 years ago
So sorry but can you answer this question gonna pull my hair out
Dmitriy789 [7]
4 × 1 × 3 = 12
2 × 1 × 3 = 6
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Answer:

1 pencil will be for 1.75 $

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4y+2x=180 solve for x and y
kirill [66]
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2 years ago
Help with this number 3)is 2×=-8
IRISSAK [1]
2x= -8
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