Use a calculator to solve for x in the given intervalsin ? = 0.3386, 0° ? ? ? 90°
A. 18.71°
B. -19.79°
C. 19.79°
D. 109.79°
Answer: C
Mathematics
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Solve the problem.Using a phone card to make a long distance call costs a flat fee of $0.39 plus $0.32 per minute starting with the first minute. Find a linear function f(x) = mx + b whose input is the number of minutes for a call and whose output is the corresponding cost for the call.
A. f(x) = 0.39x B. f(x) = 0.32x C. f(x) = 0.39x + 0.32 D. f(x) = 0.32x + 0.39
Mathematics
Solve the equation.8x - (4x - 1) = 2
A. - 
B. - 
C. 
D. 
Mathematics
Subtract.-147 - (-88 )
A. 235 B. -59 C. 59 D. -235
Mathematics
Simplify.3(3.9x + 4) + 4(x + 2.6)
A. 15.7x + 22.4 B. 34.1x C. 15.7x + 6.6 D. 23.7x + 22.4
Mathematics