All categories

3 years ago

The radius or diameter is given. Find the missing measures to the nearest hundredth.

Mathematics

1 answer:

Fynjy0 [20]3 years ago

3 0

Answer:

For any circle of radius r

The diameter of the circle = two times of the radius = 2r

And The Circumference= C = 2πr

14. If r = 8

So, d = 2r = 2 * 8 = 16 cm

C = 2πr = 2 * π * 8 = 50.27 cm (to the nearest hundredth.)

15. If d = 9 m

So, d = 2r

∴ r = d/2 = 9/2 = 4.5 m

And C = 2πr = 2 * π * 4.5 = 28.27 m (to the nearest hundredth.)

You might be interested in

If (-5x^5) (a) = 25x^7 + 100x^5, find a

sweet-ann [11.9K]

(-5x^5)(a) = 25x^7 + 100x^5
<u>+5x^5 +5x^5</u>
a = 25x^7

4 0

2 years ago

Please me in math<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Ba%20%2B%201%7D%7Ba%20-%201%7D%20%20%2B%20%20%5Cfrac%7B%20%7B

PIT_PIT [208]

Step-by-step explanation:

hope this helps you thank you

5 0

2 years ago

Read 2 more answers

The gas law for an ideal gas at absolute temperature T (in kelvins), pressure P (in atmospheres), and volume V (in liters) is PV

JulijaS [17]

Answer:

$\frac{dT}{dt}=3.78^{\circ}K/min$

Step-by-step explanation:

We have to calculate the time derivative of T=PV/nR with P and V variable and n and R constants. This is:

$\frac{dT}{dt} =\frac{d\frac{PV}{nR}}{dt}=\frac{1}{nR}\frac{d(PV)}{dt}$

What we have to do is the derivative of a product:

$\frac{d(PV)}{dt}=P\frac{dV}{dt}+V\frac{dP}{dt}$

Substituting, we have:

$\frac{dT}{dt} =\frac{P\frac{dV}{dt}+V\frac{dP}{dt}}{nR}$

where all these values are given since the time derivatives of P and V are their variation rate, using minutes.

We then substitute everything, noticing that already everything is in the same system of units so they cancel out:

$\frac{dT}{dt}=\frac{P\frac{dV}{dt}+V\frac{dP}{dt}}{nR}=\frac{(8atm)(0.16L/min)+(13L)(0.14atm/min)}{(10mol)(0.0821Latm/mol^{\circ}K)}$

And then just calculate:

$\frac{dT}{dt}=3.78^{\circ}K/min$

6 0

3 years ago

Patrica is trying to compare the average rainfall of New York to that of Arizona. A comparison between these two states for the

Elanso [62]

Liters i guess. idk. im not rlly sure

7 0

3 years ago

If both the x and y values increase on a line graph, the slope is

Aleks [24]

Answer:

Negative

Step-by-step explanation:

If a line has a positive slope, then y always increases when x increases and y always decreases when x decreases. Thus, the graph of the line starts at the bottom left and goes towards the top right.

6 0

3 years ago