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2 years ago

Rearrange the fractions in order from least to greatest. Show your work

Mathematics

1 answer:

Verdich [7]2 years ago

8 0

Answer:

Sorry but, I can't help you with all of them. Here is a and how would you show your work?

-3/4, -1/3, 1/2, 2/3

Step-by-step explanation:

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Determine the open intervals on which the graph of f(x) = x - 4cos x is concave upward or concave downward

bazaltina [42]

The graph of the function $f(x)$ is

concave upward, when $f''(x)>0;$
concave downward, when $f''(x)$

Find $f''(x):$

$f'(x)=(x-4\cos x)'=1+4\sin x;$

$f''(x)=4\cos x.$

Now:

1. when $4\cos x>0,$ the graph of the function is concave upward and this is for

$x\in \left(-\dfrac{\pi}{2}+2\pi k,\dfrac{\pi}{2}+2\pi k\right), \text{ where } k\in Z.$

2. when $4\cos x$ the graph of the function is concave downward and this is for

$x\in \left(\dfrac{\pi}{2}+2\pi k,\dfrac{3\pi}{2}+2\pi k\right), \text{ where } k\in Z.$

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2 years ago

Simplify. x + y - 0 x 2 - y 2

dusya [7]

Answer:

-y^(2)+x+y

Step-by-step explanation:

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3 years ago

Is 143 and 63 relatively prime numberd

Igoryamba

Yes 143 and 63 are relatively prime because they have no prime factors in common

brainliest answer please?

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3 years ago

Find the slope and the y-intercept of the line y=9x-8

german

Answer:

the slope is 9 and the y-int. is -8

Step-by-step explanation:

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3 years ago

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What’s the expression of this in simplest form

Ad libitum [116K]

Answer:

3/17

Step-by-step explanation:

3/4 divided by 4 1/4 is = to 3/4 divided by 17/4= 3/4 times 4/17 = 3/17

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2 years ago

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