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KatRina [158]
2 years ago
14

Simplify: n(8n−6)+10(7−n)=2

Mathematics
2 answers:
garik1379 [7]2 years ago
8 0
I think i’m may be ‘B’ i’m so sorry if i’m incorrect!!
damaskus [11]2 years ago
8 0

Answer:

B. 8n²−16n=−68

Step-by-step explanation:

First - Distribute the n & 10

n * 8n & n * -6 = 8n² - 6n

10 * -n & 10 * 7  = -10n +70

Second -  Move the 2 by subtracting

8n² - 6n - 10n +70 = 2 -> 8n² - 6n - 10n +70 - 2 = 2 - 2

Third - Combine like terms

-6n - 10n = -16n

70 - 2 = 68

8n² - 16n + 68 = 0

Fourth - Move 68 by subtracting

8n² - 16n + 68 - 68 = 0 - 68

8n² - 16n = -68

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Find the fifth term in the sequence that is defined as follows an=n2+2
Angelina_Jolie [31]
A(5) = 2 + 5^2 = 2 + 25 = 27
Step-by-step explanation:
This sequence is defined as a(n) = 2 + n^2.
Thus, a(1) = 2 + 1^2 = 2 + 1 = 3
Then a(5) = 2 + 5^2 = 2 + 25 = 27
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3 years ago
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5 0
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3 years ago
An amusement park ride has cars that move around a circular track at the rate of 16 revolutions in 20 seconds. To the nearest hu
astraxan [27]

Answer:

5.03\frac{rad}{sec}

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To find the angular velocity divide the revolutions by the time

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6 0
3 years ago
Jude types 1,170 characters in 6 minutes. What is her typing rate in characters per minute? A. 200 characters per minute B. 197
Kisachek [45]

Answer:

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We are given the following in the question:

Jude types 1,170 characters in 6 minutes..

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Typing rate =

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7 0
3 years ago
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