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victus00 [196]
3 years ago
10

Please help me with expression

Mathematics
1 answer:
steposvetlana [31]3 years ago
4 0
For the first one its (A) For the 2nd its (C) For the 3rd its (B)
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A group of workers can plant 81 acres in 9 days. What is their rate in acres per day?
KiRa [710]

Answer: 9 acres.

Step-by-step explanation:

9 times 9 in 81 easy math. hope this helps :)

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3 years ago
How do you write -x+3y=6 in point-slope form?
klemol [59]
Point slope form is y-y1= m(x-x1)
So u need another x and y ull hav to guess with what u hav so like it could start as 2-1 or 3-0 but it’s ur choice
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3 years ago
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Find radius of a hemisphere given volume of 144 cm³
marysya [2.9K]

Answer:

The radius is 4.097396898

Step-by-step explanation:

A hemisphere is 1/2 of a sphere so the volume is 1/2 of the volume

V = 1/2 ( 4/3 pi r^3)

   = 2/3 pi r^3

144 = 2/3 pi r^3

Multiply each side by 3/2

3/2 *144 = 3/2 * 2/3 pi r^3

216 = pi r^3

Divide each side by pi

216/ pi =   pi r^3/pi

68.78980892 = r^3

Take the cube root of each side

(68.78980892 )^1/3= (r^3)^1/3

4.097396898 = r

The radius is 4.097396898

8 0
3 years ago
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Answer:

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4 0
3 years ago
Is the function given by, f(x)={3x-2 if x≤3 , 10-x if x>3} continuous at x = 3?
Darya [45]
<h2>Answer:</h2>

yes

<h3>Step-by-step explanation:</h3>

This is a piecewise-defined function because it is defined by two or more equations over a specified domain is. The graph of this function is shown below. So this functions is continuous because its graph is a single unbroken curve. So the function is defined be the line 3x - 2 when x = 3 and the output here is y = 7

6 0
3 years ago
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