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Veronika [31]
3 years ago
8

What is the value of the expression below when b = 4 and c=5?

Mathematics
1 answer:
frozen [14]3 years ago
4 0

Answer:

107

Step-by-step explanation:

8b^2 - 6c + 9

Let b=4 and c=5

8*(4)^2 -6(5)+9

Exponents first

8* 16 -30 +9

Then multiply

128 -30+9

Then add and subtract

107

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lord [1]

Answer:

  • The 27th term is 22

Step-by-step explanation:

Let the first term is a and common difference is d.

<u>The nth term is:</u>

  • aₙ = a + (n - 1)d

<u>We have:</u>

  • a₆ = 15
  • a₉ = 16

<u>The difference of these terms is:</u>

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  • 3d = 1
  • d = 1/3

<u>Then the first term is:</u>

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<u>The nth term equation is:</u>

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<u>If the nth term is 22, find n:</u>

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