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dimaraw [331]
3 years ago
15

HELP PLEASE somebody !!

Mathematics
1 answer:
Anestetic [448]3 years ago
7 0

Answer:

Step-by-step explanation:

The 90th term of the arithmetic sequence is 461

a90=a1+(90-1) x d

a90=16+89 x 5

a90=461

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Answer:

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Step-by-step explanation:

a = 2 and b = -3

so the question asks whats.... a^3 - b^3/5

First we plug in the values of a and b

(2)^3 - (-3)^3 /5

Now we solve the ones in paranthesis first

(2)^3 = 8 because 2×2×2 and

-(-3)^3 forget about the - outside the parenthesis so

(-3)^3 = (-27) because (-3)×(-3)×(-3)

now we put it back together

8 -(-27)/5

the two minus become plus so

8 + 27/5

Now we solve it like fractions

8 and 27/5

simplify

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Hope that helps!

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