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Aleksandr [31]
3 years ago
12

Answer FASSSSSSSSSTTTTTTTTTTTTTTT

Mathematics
2 answers:
inn [45]3 years ago
8 0
I think it’s B or A I can’t remember this so if you get this wrong am sorry ...
guajiro [1.7K]3 years ago
4 0
It’s C
Up and over 3 up and 1 over from dot to dot. And it’s positive since it’s going up
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Below is the graph of f ′(x), the derivative of f(x), and has x-intercepts at x = –3, x = 1 and x = 2. There are horizontal tang
mojhsa [17]

Answer:

C. f has a relative maximum at x = 1.

Step-by-step explanation:

A. False.  f(x) is concave down when f"(x) is negative.  f"(x) is the tangent slope of the graph, f'(x).  So f(x) is concave down between x = -1.5 and x = 1.5.

B. False.  f(x) is decreasing when f'(x) is negative.  So f(x) is decreasing in the intervals x < -3 and 1 < x < 2.

C. True.  f(x) has a relative maximum where f'(x) = 0 and changes from + to -.

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3 years ago
A random variable x takes four possible values, 0, 2, a, and b, where a and b are unknown numbers. if pr[x = 0] = 0.2, pr[x=2] =
Alexus [3.1K]
\displaystyle\sum_{x\in\{0,2,a,b\}}\mathbb P(X=x)=1
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\implies\mathbb P(X=b)=0.1

\mathbb E(X)=\displaystyle\sum_{x\in\{0,2,a,b\}}x\mathbb P(X=x)=2.8
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0.3a+0.1b=2

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3 years ago
1. what is the equation of a line that has an x-intercept of 2 and a y-intercept of 8
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y-intercept = 8 . So, Coordinate (0, 8)

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Slope y-intercept form: y = mx + b  {Here, b is y-intercept}

y = -4x + 8

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