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3 years ago

Help me pleaseeee just a yes or no question

Mathematics

1 answer:

oee [108]3 years ago

3 0

The points have to have the coordinate y=4 to be on the y=4 line

only the (1, 4) point matches this, so yes it is a solution, all others not and are therefore no

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I neeeed helpppp asapp

miv72 [106K]

Answer:

Step-by-step explanation:

You can't divide 12 by 9, if you want a number with no decimals that is.

6 0

3 years ago

Which of the following equations are true for the number 9? Select all that apply.

telo118 [61]

Answer:

B and C

Step-by-step explanation:

1/9 = 1÷9

7÷9 = 7/9

Option B and C is the only equation true for the number 9

3 0

3 years ago

V=4/3? r^2 Suppose that, for the sphere in the video, instead of being told how fast the radius is changing, we're told that the

grigory [225]

Answer:

$\frac{dr}{dt}=0.01$ cm per second

$\frac{dS}{dt}=320 square centimeter per secondStep-by-step explanation:We are given that volume of sphere [tex]V=\frac{4}{3}\pi r^3$

Volume of sphere is increasing at a constant rate

$\frac{dV}{dt}=4$ cubic centimeters per second

We have to find the rate of radius at which increasing

when r= 10 cm

Differentiating w.r.t time

$\frac{dV}{dt}=\frac{4}{3}\pi\cdot3r^2\frac{dr}{dt}$

$4=4 r^2\frac{dr}{dt}$

$\frac{dr}{dt}= \frac{1}{r^2}=\frac}{1}{(10)^2}=0.01$ cm per second

Now ,we are given that surface area of sphere

$S=4\pir^2$

Differentiate w.r.t time then we get

$\frac{dS}[dt}=8\pir\frac{dr}{dt}$

$\frac{dS}{dt}=8\pi\times 20\times 2$

$\frac{dS}{dt}=320$ cm per second

5 0

3 years ago

Why is it useful to rewrite a formula in terms of another variable ?

Anuta_ua [19.1K]

Then you don’t get lost doing the problem

6 0

4 years ago

What’s the answer to this please? Thank u!

masya89 [10]

Answer:

I think the answer is C.

Step-by-step explanation:

Have a good day ;-).

6 0

3 years ago