The amount of money spent for music services t years after 2010 can be approximated by m(t) = 0.54t+0.536, where m(t) is in billions of dollars. Determine (using an
inequality) those years for which more than $2 billion will be spent for music services.

Solution:

Given that,

The amount of money spent for music services t years after 2010 can be approximated by:

m(t) = 0.54t + 0.536

where m(t) is in billions of dollars

For those years for which more than $2 billion will be spent for music services, write inequality as:

0.54t + 0.536 > 2

Solve the inequality,

Thus, approximately after 3 years,  $2 billion will be spent for music services

Thus, ( 2010 + 3 = 2013 ) from 2013, more than $2 billion will be spent for streaming music services

answer: the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.

step-by-step explanation:

the given rate of interest i= 85%

in calculating the monthly payment for a loan with an interest rate compounded monthly, the value of the interest rate per period we use in the formula must be in decimal form.

to convert it in decimal, we divide it by 100, we get

hence, the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify