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3 years ago

11

10 POINTS WILL MARK BRAINLIEST Find the restriction on y=2x^2-8

1 answer:

borishaifa [10]3 years ago

7 0

X cannot equal +2, and can't be -1. If you factor it, then you notice you get 2(x+2)(x-2). If you use either one for the x, one will be zero and the won't, and vise-versa.

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The velocity v of the flow of blood at a distance r from the central axis of an artery of radius R is given below, where k is th

andrew11 [14]

The average rate of blood flow is given by

$\displaystyle\frac1{R-0}\int_0^Rv(r)\,\mathrm dr=\frac kR\int_0^R(R^2-r^2)\,\mathrm dr$
$=\dfrac kR\left(R^2r-\dfrac13r^3\right)\bigg|_{r=0}^{r=R}$
$=\dfrac kR\left(R^3-\dfrac13R^3\right)$
$=\dfrac{2kR^2}3$

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2 years ago

The function C (t) = StartFraction 4 t Over t squared + 2 EndFraction models the cost per student of a field trip when x student

Vika [28.1K]

Answer:

It is vertically stretched by a factor of 200 and shifted 10 units up.

Step-by-step explanation:

cool like that

3 0

2 years ago

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What is the area of this cylinder? the height is 20 meters and the radius is 17 meters

antiseptic1488 [7]

Answer:

18149.20

Step-by-step explanation:

$V=\pi(20)(17^2) \\ \\ \approx 3.14(17^2)(20) \\ \\ =18149.20$

8 0

2 years ago

Write ✓-98 in simplest radical form.

trapecia [35]

Answer:

Step-by-step explanation:

This first step is to take the square root of the minus which is understood to be - 1

sqrt(-1) = i

So far what you have is

sqrt(-98) = i*sqrt(98)

sqrt(98) is just found the ordinary way

sqrt(98) = sqrt(7*7*2)

sqrt(7*7*2) = 7*sqrt(2)

Answer: 7 * i * sqrt(2) = i7*sqrt(2)

Pick the choice that looks like what you have done for homework.

8 0

2 years ago

Anyone help me please Thank you

Olin [163]

I have to say the answer is C

4 0

3 years ago

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