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3 years ago

What the answer plsss

Mathematics

2 answers:

Mumz [18]3 years ago

6 0

I’m pretty sure it is 158

Lera25 [3.4K]3 years ago

3 0

Answer:

3 - 312

Step-by-step explanation:

6*8=48

48/2=24

11*10=110

11*6=66

8*11=88

24*2=48

66+88+110+48=312

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topjm [15]

2340+140+268=$<em><u>2748</u></em>

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3 years ago

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horsena [70]

Answer:

$\text{\bf{C.}}\quad a_n=4+(n-1)(-7)$

Step-by-step explanation:

An arithmetic sequence that is described by the explicit formula ...

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can also be described by the recursive formula ...

$\left \{\begin{array}{l}a_1=\text{(first term)}&a_n=a_{n-1}+d&\end{array}\right.$

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3 years ago

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valina [46]

Answer: a = -2 and c = 7

Step-by-step explanation:

(this answer uses some basic calculus)

We know that $f'(x) = 2ax + 4$ , and since $(1,9)$ is a maximum of $f$ , then $f'(1) = 0$ . That means $2a + 4 = 0$ , so $\boxed{a = -2}$ . Then since $f(1) = 9$ , we have $-2(1)^2 + 4(1) + c = 9$ , so $\boxed{c = 7}$ .

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Ksivusya [100]

Answer:

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