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Serggg [28]
3 years ago
7

PLEASE HELP!! WILL MARK BRAINLIEST!!

Mathematics
2 answers:
katen-ka-za [31]3 years ago
7 0

Answer:

C. Yes Devon should have evaluated f(3).

Step-by-step explanation:

She substituted the wrong value. For x - 3 to be a factor f(3) must equal 0.

f(3) = 3^3 + 3^2 - 10(3) + 8 = 27 + 9 - 30 + 8

= 14,  so x- 3 is not a factor anyway but she did  substitute the wrong value.

ser-zykov [4K]3 years ago
6 0

Answer:

C.

Step-by-step explanation:

To see if x-3 is a factor you plug in what makes it 0 which is 3.

Evaluating f at 3:

3^3+3^2-10(3)+8

27+9-30+8

36-30+8

6+8

14

So the remainder of dividing f by (x-3) is actually 14.

The conclusion is still the same but the work Devon provided with her conclusion is wrong as she suppose to evaluate f(3) instead of f(-3).

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Archy [21]
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What is the fourth term of an arithmetic sequence whose first term is 23 and whose seventh term is 5?
mixas84 [53]

We have that  the fourth term of an arithmetic sequence is

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Option C

From the question we are told

What is the fourth term of an arithmetic sequence whose first term is 23 and whose seventh term is 5?

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(Explain your work)

Generally the equation for the  arithmetic sequence  is mathematically given as

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Therefore

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Step-by-step explanation:

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