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3 years ago

Does anyone know and can please help me , I’ll mark brainlist;)

Mathematics

2 answers:

choli [55]3 years ago

5 0

Answer:

Step-by-step explanation:

the negative exponents indicate that the answers are in decimal form, meaning that the less the negative exponent, the greater the number. If two exponents are the same negative number, then the number before the E is the greater of the two, thus the answer being B

nevsk [136]3 years ago

4 0

Answer:

Step-by-step explanation:

order is ADBC

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the volume of a cone of radius r and height h is given by v=1/3pir^2h. If the radius and height is both increasing at a constant

Tamiku [17]

Answer:

The rate of change of the volume $\frac{dV}{dt}$ when the height is 9 centimeters and the radius is 6 centimeters is $24\pi \:\frac{cm^3}{s}$

Step-by-step explanation:

This is a related rate problem because you know a rate and want to find another rate that is related to it. If 2 variables both vary with respect to time and have a relation between them, we can express the rate of change of one in terms of the other.

From the information given we know:

$\frac{dr}{dt}=\frac{1}{2}\:\frac{cm}{s}$
$\frac{dh}{dt}=\frac{1}{2}\:\frac{cm}{s}$
The volume of a cone of radius r and height h is given by $V=\frac{1}{3} \pi r^2 h$

We want to find the rate of change of the volume $\frac{dV}{dt}$ when the height is 9 centimeters and the radius is 6 centimeters.

Applying implicit differentiation to the formula of the volume of a cone we get

$\frac{dV}{dt}=\frac{1}{3}\pi [r^2\frac{dh}{dt}+2rh\frac{dr}{dt} ]$

Substituting the values we know into the above formula:

$\frac{dV}{dt}=\frac{1}{3}\pi [(6)^2\frac{1}{2}+2(6)(9)\frac{1}{2} ]\\\\\frac{dV}{dt}=\frac{1}{3}\pi[18+54]\\\\\frac{dV}{dt}=\frac{72\pi}{3}=24\pi \:\frac{cm^3}{s}$

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4 years ago

Anyone knows the answer??

victus00 [196]

Add the ratios: 3 + 7 + 5 = 15

Divide total songs by the sum:

60 / 15 = 4

Now multiply each ratio by that:

3 x 4 = 12

7 x 4 = 28

5 x 4 = 20

Answer: trap = 12, r&b = 28, reggaeton = 20

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3 years ago