Find the exact value of the expression if ? = 30°. Do not use a calculator.f(?) = cos ?Find 7 f(?).
A. 
B. - 
C. 
D. - 
Answer: A
Mathematics
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Solve the problem.Assuming two parents, four grandparents, etc., what is the total number of ancestors a person has going back 8 generations?
A. 254 B. 128 C. 510 D. 256
Mathematics
Solve the equation.
- 
= 
A. {-5}
B. 
C. ?
D. 
Mathematics
Use the circle graph of one family's allowance for appliances in their new house to complete the exercise. Write ratios as fractions in lowest terms.
A = $556D = $640B = $1151E = $359C = $418F = $354Find the ratio of dishwasher to total allowance.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Ben Franklin bequeathed $4000.00 to the city of Boston in 1790. Assuming the fund grew to 
in 200 years, find the interest rate compounded continuously that would yield this total value.
A. 3.5% B. 5.7% C. 1.7% D. 2.6%
Mathematics