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dexar [7]
3 years ago
14

PLEASE HELP!!The number of members of an online community increases each month. The function M(t) = N(1+r)t represents the numbe

r of members at month t, where N is the initial number of members and r is the rate of increase. Select the correct statement.

Mathematics
2 answers:
vekshin13 years ago
6 0

Answer:

The correct option is B.

Step-by-step explanation:

The number of members of an online community increases each month. It is represented by the function

M(t)=N(1+r)^t

Where N is the initial number of members and r is the rate of increase.

The initial value for the function is N, because at t=0 the value of M is N. So, option A is incorrect.

The value of M is product of N and (1+r)^t. The second term is free from N, because second term does not contain N. therefore the second factor does not depend on N. So, option B is correct.

It is an exponential growth function, therefore it can not be linear. So, option C is incorrect.

The initial value is constant. In the given function only the value of t can be changed. So, option D is incorrect.

Evgesh-ka [11]3 years ago
3 0

Answer:

B

Step-by-step explanation:

i just did it and it was right

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4 0
3 years ago
PLS HELP! I NEED TO FIND THE SURFACE AREA OF THIS CYLINDER!
Contact [7]

Exact Surface Area = 378pi

Approximate Surface Area = 1186.92

The approximate surface area uses pi = 3.14

The units are cm^2 or "square cm".

=========================================================

Work Shown:

SA = surface area of cylinder

SA = 2*pi*r^2 + 2*pi*r*h

SA = 2*pi*7^2 + 2*pi*7*20

SA = 2*pi*49 + 2*pi*140

SA = 2*49*pi + 2*140*pi

SA = 98pi + 280pi

SA = 378pi ..... exact surface area

SA = 378*3.14

SA = 1186.92 ..... approximate surface area

----------

Side note: The diameter 14 cuts in half to get the radius r = 7

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