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anzhelika [568]
3 years ago
13

Simplify and then evaluate the equation when a= 2 and b = 4. b2 + 3(b – 62) – 2a= [?]

Mathematics
1 answer:
I am Lyosha [343]3 years ago
5 0

Answer:

-170

Step-by-step explanation:

First, you would substitute 2 and 4 for a and b. 4 times 2 + 3(4 - 62) - 2 times 2 = ?

Then, do 4 times 2 (8), 3(4-62)=3(-58)

8 + -174 - 4 = -170

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Insert three arithmetic means between 4 and 10.
Bumek [7]

Answer:

5.5, 7, 8.5

Step-by-step explanation:

Find the mean of 4 and 10, that is

\frac{4+10}{2} = \frac{14}{2} = 7

Now repeat with 4 and 7 and 7 and 10

\frac{4+7}{2} = \frac{11}{2} = 5.5

\frac{7+10}{2} = \frac{17}{2} = 8.5

Hence

4, 5.5, 7, 8.5, 10 ← is an arithmetic sequence with d = 1.5

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Answer:

d = 5/6t

Step-by-step explanation:

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we have

(d - 5)/(t-6) = (10-5)/(12-6)

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2 years ago
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Answer:

138

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p(x) = 3x^4 + 2x^3 − 4x^2 + 21

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p(2) = 3*(2)^4 + 2*(2)^3 − 4*(2)^2 + 21

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