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viktelen [127]
3 years ago
11

PLEASE HELP! I have used the Surface Area of a sphere, but I've just forgot how to solve it​

Mathematics
1 answer:
Sever21 [200]3 years ago
3 0
The formula is 4*Pi*R2.
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Evaluate –9x - 8<br> When x = -4
Paha777 [63]

Answer: 28

Step-by-step explanation:

Given -9x - 8

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36-8=28

6 0
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Find the sum of the first 30 terms of the sequence. a_(n)=4n+1
oksian1 [2.3K]
We know that
a(n)=4n+1
To find the sum of the first n<span> terms of an arithmetic series
use the formula
</span><span><span>Sn</span>=<span>n(<span>a1</span> + <span>an</span>)/2
</span></span>a1--------------> is the first term
an--------------> is the last term
n--------------- > <span>is the number of terms
</span>we have that
a1------------> 4*(1)+1=5
a30----------> 4*(30)+1=121
n------------- > 30
S30=30*(5 + 121)/2=1890

the answer is 1890


7 0
3 years ago
How many mm are in a meter
irina1246 [14]
There is 1,000 millimeters in mm

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A. Expanding the given expression, you have
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B. For r=0.10, the balance after 2 years is 75*1.1^2 = 90.75

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