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3 years ago

Four times the sum of 4 and some number is 40

Mathematics

2 answers:

pochemuha3 years ago

5 0

4 + 6 = 10

10 * 4 = 40.

The full equation looks like this....

4(4+6)

"Some Number" is 6.

zubka84 [21]3 years ago

3 0

The front door of a house is 80 inches tall what is the volume of the door in cubic inches

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Determine the IQR for this set of data. 12, 13, 14, 15, 17, 18, 19, 19, 22, 23<br> 14 <br> 17.5

VladimirAG [237]

Answer:5

Step-by-step explanation:

4 0

3 years ago

A spherical balloon is being inflated at a rate of 3 cubic inches per second. Determine the change in the rate of the radius.How

Novay_Z [31]

Answer:

The rate rate of change of radius is $\frac{1}{48\pi}$ inches per second when the diameter is 12 inches.

The radius is changing more rapidly when the diameter is 12 inches.

Step-by-step explanation:

Consider the provided information.

A spherical balloon is being inflated at a rate of 3 cubic inches per second.

The volume of sphere is $V=\frac{4}{3}\pi r^3$

Differentiate the above formula with respect to time.

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

Substitute the respective values in the above formula,

$3=4\pi 6^2\frac{dr}{dt}$

$\frac{1}{48\pi}=\frac{dr}{dt}$

The rate rate of change of radius is $\frac{1}{48\pi}$ inches per second when the diameter is 12 inches.

When d=16

$3=4\pi 8^2\frac{dr}{dt}$

$\frac{3}{256\pi}=\frac{dr}{dt}$

Thus, the radius is changing more rapidly when the diameter is 12 inches.

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3 years ago

What is the inverse of f(x)=6x^2

likoan [24]

Answer:

f^-1 (x) = √ 6x/6 - √ 6x/6

Step-by-step explanation:

interchange the variables and solve for y.

sorry its a little hard to read i didnt have all the symbols on my keyboard

8 0

3 years ago

Help me plz..........

Gemiola [76]

Answer:

x = 4 or above

Step-by-step explanation:

It is right

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3 years ago

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storchak [24]

Answer:

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Step-by-step explanation:

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3 years ago