The number of u. s. citizens aged 65 years and older from 1900 through 2050 is estimated to be growing at the rate of r(t) = 0.063t2 − 0.48t + 3.87 (0 ≤ t ≤ 15) million people/decade, where t is measured in decades, with t = 0 corresponding to 1900.† how many times faster will the average rate of growth of u. s. citizens aged 65 yr and older between 2000 and 2050 be than that between 1910 and 1960. (round your answer to two decimal places.)

a

step-by-step explanation:

what are you doing do you need examples of variable questions?

step-by-step explanation:

5a-1=9               bring the one over the =

5a=10                     divide by your variable

a=2

brainliest? ?

here try this one

3a-24=0

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like: