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DENIUS [597]
2 years ago
7

Find the sum of the arithmetic series in which a1 = –68, d = –3, and n = 20.

Mathematics
1 answer:
harkovskaia [24]2 years ago
6 0

Step-by-step explanation:

Sum of 20 terms in thr arithmetic sequence adds up to -1930

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We know that we have to m<span>ake a down payment of $1500 and finance the rest of $20000 at a 1.9% interest rate, making equal monthly payments for 5 years. Our first step to solve this problem would be to convert 5 years into months. 

1 year = 12 months 

12 * 5 = 60 months 

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3 years ago
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GenaCL600 [577]
Factor completely x³ + 6x² - 3x – 18
- 6 + 6( - 6)^{2}  - 3( - 6) - 18 \\  - 6 +6 \times 6 ^{2}  + 18 - 18 \\  - 6 + 6 ^{3}  + 18 - 18 \\  - 6 + 216 \\ 210
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3 0
3 years ago
Is this right. Please help me
My name is Ann [436]

Answer:

ye that is the correct answer

3 0
3 years ago
Please help me on math
Eduardwww [97]

Answer:

45 inches

Step-by-step explanation:

85-40=45

b=45

how I know?

use the formula c^2-a^2=b^2

85 being c, a being 40 and b being 45

7 0
2 years ago
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