All categories

3 years ago

What is the correlation coefficient for the data in the table?

1 answer:

5 0

Using a rain gauge, Gerry determined that 1/2 inch of rain fell during 3/4 of an hour.What is the unit rate of rainfall in inches per hour

You might be interested in

The spherical balloon is inflated at the rate of 10 m³/sec. Find the rate at which the surface area is increasing when the radiu

rjkz [21]

The balloon has a volume $V$ dependent on its radius $r$ :

$V(r)=\dfrac43\pi r^3$

Differentiating with respect to time $t$ gives

$\dfrac{\mathrm dV}{\mathrm dt}=4\pi r^2\dfrac{\mathrm dr}{\mathrm dt}$

If the volume is increasing at a rate of 10 cubic m/s, then at the moment the radius is 3 m, it is increasing at a rate of

$10\dfrac{\mathrm m^3}{\mathrm s}=4\pi (3\,\mathrm m)^2\dfrac{\mathrm dr}{\mathrm dt}\implies\dfrac{\mathrm dr}{\mathrm dt}=\dfrac5{18\pi}\dfrac{\rm m}{\rm s}$

The surface area of the balloon is

$S(r)=4\pi r^2$

and differentiating gives

$\dfrac{\mathrm dS}{\mathrm dt}=8\pi r\dfrac{\mathrm dr}{\mathrm dt}$

so that at the moment the radius is 3 m, its area is increasing at a rate of

$\dfrac{\mathrm dS}{\mathrm dt}=8\pi(3\,\mathrm m)\left(\dfrac5{18\pi}\dfrac{\rm m}{\rm s}\right)=\dfrac{20}3\dfrac{\mathrm m^2}{\rm s}$

4 0

2 years ago

Round 149,640 to the nearest thousand.

love history [14]

150,000 I believe is the answer

6 0

3 years ago

Read 2 more answers

I NEED HELP ASAP!!!!!

cricket20 [7]

Answer:

-0.008 or -1/15

Step-by-step explanation:

7 0

2 years ago

Graph the equation 8x-4y=56 then, trace the graph to find the missing value in the coordinate pairs below

Marysya12 [62]

Just look at it this way do 8(1) instead of x and graph that on the x axis
then do 4(1)instead of y and graph on the y axis then figure out which numbers you need to keep inputting until you reach 56 on the graph.

5 0

2 years ago

Read 2 more answers

On a certain hot summer's day, 696 people used the public swimming pool. The daily prices are $1.75 for children and $2.00 for

mart [117]

Answer:

i dont know

Step-by-step explanation:

5 0

2 years ago