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boyakko [2]
3 years ago
10

When adding 8pi + pi does it equal 9pi or 8 pi

Mathematics
2 answers:
max2010maxim [7]3 years ago
3 0
I believe it is 9pi because it is addition so it would be like this: pi + pi + pi + pi + pi + pi + pi + pi + pi= 9pi
Advocard [28]3 years ago
3 0
The answer is 9pi, because pi+pi=2pi and when u add it will get 10pi but u subtract it by one
hope this helps!!
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Please also include an explanation, I'd appreciate it :-)
eduard

Answer:

30ft

Step-by-step explanation:

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6ft=6×5. 6x5=30

6 0
3 years ago
Axis of symmetry: x=4; points: (3,-2), (6,-26); opening downward
Andru [333]
Vertex form is
y=a(x-h)^2+k
vertex is (h,k)
axis of symmetry is x=4, therfor h=4
y=a(x-4)^2+k

we have some points
(3,-2) and (6,-26)
input and solve for a and k

(3,-2)
-2=a(3-4)^2+k
-2=a(-1)^2+k
-2=a(1)+k
-2=a+k

(6,-26)
-26=a(6-4)^2+k
-26=a(2)^2+k
-26=a(4)+k
-26=4a+k

we have

-2=a+k
-26=4a+k
multiply first equation by -1 and add to second

2=-a-k
<u>-26=4a+k +</u>
-24=3a+0k

-24=3a
divide both sides by 3
-8=a

-2=a+k
-2=-8+k
add 8 to both sides
6=k

the equation is
y=-8(x-4)^2+6
3 0
3 years ago
PLEASE HELP!!!!<br> Solve for x: 3(x + 1) = −2(x − 1) − 4.<br><br> 1<br> −1<br> −5<br> −25
gtnhenbr [62]
I feel like I just solved this one. its -1 isn't it?
3 0
3 years ago
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Answer:

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Step-by-step explanation:

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This value comes from information about the population of every time he has ever gone up to bat. Therefore, it is a parameter.

If on the other hand, we take the batting average of 5 games, the 5 games will be a sample and the batting average will be a statistic.

5 0
4 years ago
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nirvana33 [79]
F(x) represents how many books in total and x represents the number of days
8 0
4 years ago
Read 2 more answers
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