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3 years ago

11

Find the sum of the first 8 terms in the sequence?

1 answer:

Darya [45]3 years ago

5 0

We need to find the 8 th term nth term is given as <span><span>an</span>=<span>a1</span>+(n−1)d</span> n=8, d =-4 (common difference) <span><span>a8</span>=<span>a1</span>+(8−1)×d</span> <span><span>a8</span>=1+7×(−4<span>)</span></span>

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2 years ago

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Given f(x) = -x + 5, find f(-3).<br> Answer:

user100 [1]

Hey there!

<u>Find </u><u>f(</u><u>-</u><u>3</u><u>)</u><u> </u><u>:</u>

Answer :

f(-3) = 8 ✅

Explanation :

f(x) = -x + 5

<em>></em><em>></em><em> </em><em>Substitute </em><em>-</em><em>3</em><em> </em><em>for </em><em>x </em><em>in </em><em>f(</em><em>x)</em><em> </em><em>:</em><em> </em>

f(-3) = -(-3) + 5

f(-3) = 3 + 5

f(-3) = 8

Therefore, your answer is f(-3) = 8

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