Find the indicated sum. Find the sum of the first 7 terms in the geometric series 3 + 9 + 27 + . . .
A. 1122
B. 3279
C. 9840
D. 1092
Answer: B
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Graph the linear inequality.-2x - 3y ? -6
A. 
B. 
C. 
D. 
Solve the problem.In the formula N = Iekt, N is the number of items in terms of an initial population I at a given time t and k is a growth constant equal to the percent of growth per unit time. There are currently 72 million cars in a certain country, increasing by 1.3% annually. How many years will it take for this country to have 90 million cars? Round to the nearest year.
A. 14 yr B. 17 yr C. 222 yr D. 5 yr
Use a truth table to decide if the statements are equivalent.~(q ? p); q ? ~p
A. Not equivalent B. Equivalent
Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution.
x = 18
A. {-0.48} B. {-2.08} C. {-4.50} D. {2.08}