Answer:
20
Step-by-step explanation:
Answer: The tenth term is 76
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Explanation:
We use this arithmetic sequence formula to get the nth term

Plug in
and you should get the following:

The tenth term is <u>76</u>
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We can verify this by listing out the terms one by one. Start at 4, add on 8 each time, until you generate the 10th term. A table like the one shown below is a good way to keep track of all the terms.

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In short, the error is with the "10" in the expression 4+10(8). The student should have used 9 instead. This is because of the n-1 term in
which shifts everything one spot to the left.
Answer:
13
Step-by-step explanation:
8x - 20 = 4x + 32 ( F rule angles)
8x-4x=32+20
4x=52
x=52/4
x=13
Answer:
4/3π - √3
Step-by-step explanation:
Pie piece of circle is area of circle x portion of circle
πr²*x/360 = π(2)²*120/360 = 4/3π
Then you must subract the non-right triangle area
1/2ab sin C = 1/2(2)(2) sin 120 = 2 * √3/2 = √3
4/3π - √3
Answer:
4/13
Step-by-step explanation:
In absolute value, it is showing distance. Whenever something is in absolute value, it is turned positive.
here, Inside the absolute value brackets, we have positive 4/13. Positive 4/13 undergoes no such change, because there are no other terms, and no negatives.
absolute value of 4/13 is 4/13