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mestny [16]
2 years ago
12

What is the 18th term of the arithmetic

Mathematics
1 answer:
Irina18 [472]2 years ago
3 0

Answer:

J

-66

Step-by-step explanation:

a1 = 2

n = 18

d = - 4

a18  =  a1 + (n - 1) * d

a18 = 2 + (18 - 1)*(-4)

a18 = 2 + 17*-4

a18 = 2 - 68

a18 = -66

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3 0
2 years ago
Sonya drops a marble while standing on a deck 7 7/8 feet above the ground. The marble falls 4 1/4 feta from Sonya's hand to the
Greeley [361]

Answer:

12\dfrac{1}{8}\ feet

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Sonya drops a marble while standing on a deck 7 \dfrac{7}{8} feet above the ground.

The marble falls 4 \dfrac{1}{4} feet from Sonya's hand to the deck, and then rolls and falls to the ground.

So, the ball falls 4 \dfrac{1}{4} feet from Sonya's hand to the deck  and 7 \dfrac{7}{8} from the deck to the ground, in total

4\dfrac{1}{4}+7\dfrac{7}{8}=4\dfrac{2}{8}+7\dfrac{7}{8}=(4+7)+\dfrac{2+7}{8}=11+\dfrac{9}{8}=11+1\dfrac{1}{8}=12\dfrac{1}{8}\ feet

8 0
2 years ago
Read 2 more answers
Please help me out!!!
Dmitriy789 [7]

Answer:

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7 0
2 years ago
Simplify 4 to the 7th over 5 squared all raised to the 3rd power.
Radda [10]
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6 0
2 years ago
What is the value of n in the simplified expression? (4k7)3= 4n ·(k7) 3= 64k21
Nesterboy [21]
Given:
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Answer: n = 16

5 0
3 years ago
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