Use a calculator to find the approximate value of the composition. Round answers to four decimal places, if necessary.cos (cos-1 0.3)
A. 3.4
B. 0.3
C. 1
D. 2.8
Answer: B
Mathematics
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If f satisfies the equation of change 
, and the initial value of f is 1.1, find a formula for the function 
.
?
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.-2x = -12
A. {-10} B. {2} C. {10} D. {6}
Mathematics
Solve the problem.If a person puts 1 cent in a piggy bank on the first day, 2 cents on the second day, 3 cents on the third day, and so on, how much money will be in the bank after 40 days?
A. $16.40 B. $0.40 C. $8.20 D. $4.10
Mathematics
Given the function, find the indicated value.f(x) = 8x + 5; f(-13)
A. -103.5 B. -109 C. 109 D. -99
Mathematics