Answer the question.What does the digit 4 mean in the number 247,189?
A. 4 hundreds
B. 4 hundred thousands
C. 4 thousands
D. 4 ten thousands
Answer: D
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. (2-2)0
A. 1
B. 
C. 0
D. -4
Solve the problem.The function f(t) = -0.14t2 + 0.49t + 30.5 models the U.S. population in millions, ages 65 and older, where t represents years after 1990. The function g(t) = 0.54t2 + 12.06t + 107.2 models the total yearly cost of Medicare in billions of dollars, where t represents years after 1990. What does the function 
represent? Find 
(15).
A. Cost per person in thousands of dollars. $0.02 thousand B. Cost per person in thousands of dollars. $7.78 thousand C. Cost per person in thousands of dollars. $0.17 thousand D. Cost per person in thousands of dollars. $64.50 thousand
?The capitalized cost C of an asset is given by 
where 
is the original investment, t is the time in years, r is the annual interest rate compounded continuously, and
src="https://sciemce.com/media/3/ppg__cognero__Chapter_6_Techniques_of_Integration__media__a01459ab-39c8-4d4c-b790-7079e51a7114.PNG" style="vertical-align:middle;" /> is the annual cost of maintenance (in dollars). Find the capitalized cost of an asset (a) for 5 years, (b) for 10 years, and (c) forever.
?
, 
, 
?
A. ?
?a. 
, 
b. 
, 
c. 
, 
?
B. ??
a.
, 
b. 
, 
c. 
, 
?
C. ?
??a.
, 
b. 
, 
c. 
,
?
D. ??
a.
, 
b. 
,
c. 
,
?
E. ??a.
, 
b. 
,
c. 
, 
Simplify the expression. Assume that all variables are non-negative.
A. x10yz20 B. x10y5z4 C. x2y5z4 D. x10y5z20