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Radda [10]
3 years ago
15

Please help thank you very much

Mathematics
1 answer:
sineoko [7]3 years ago
8 0

Answer:

96

lower right

Step-by-step explanation:

Part 1

Givens

a1 = - 20

d = +4

n = 30

Equation

a30 = a1 + (n - 1)d

Solution

a30 = -20 + (30 - 1)*4

a30 = -20 + 29*4

a30 = - 20 + 116

a30 = 96

=====================

Part 2

Formula

Sum = (a1 + L)*n/2

n = 30

So only the two on the right can be considered

a1 = -20

L = 96

Sum = (-20 + 96)30/2 is the bottom right. D if you think of it that way.

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Answer:

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Step-by-step explanation:

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3 years ago
Which of the following is a polynomial with roots 3, 5i, and −5i?
jek_recluse [69]
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<em>"Associate with people who are likely to improve you."</em>
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3 years ago
The angles of elevation to an airplane from two points A and B on level ground are 58° and 76°, respectively. The points A and B
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Step-by-step explanation:

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6 0
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Alecsey [184]

Answer:

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Step-by-step explanation:

A is a set of any number x which 30 < x <=45

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