Solve.David recently switched to a long distance phone company which charges a monthly fee of $7.95 plus $0.08 per minute. A linear function that expresses the monthly bill B as a function of minutes used m is 
How many minutes were used for long distance if the long-distance phone bill was $39.95?
A. 499 minutes
B. 400 minutes
C. 386 minutes
D. 409 minutes
Answer: B
Mathematics
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Provide an appropriate response.If x2 + y2 = 4, use implicit differentiation to find 
and simplify your answer. Note: 
should not appear in your final answer.
What will be an ideal response?
Mathematics
Find a bound on the real zeros of the polynomial function.f(x) = x4 - 15x2 - 16
A. -17 and 17 B. -16 and 16 C. -32 and 32 D. -31 and 31
Mathematics
Find all cube roots of the complex number. Leave answers in trigonometric form.125i
A. 1, -1, -i B. 5 cis 60°, 5 cis 180°, 5 cis 300° C. 5 cis 0°, 5 cis 120°, 5 cis 240° D. 5 cis 30°, 5 cis 150°, 5 cis 270°
Mathematics
Simplify the exponential expression.(43)-2
A. -128
B. 
C. -24
D. 
Mathematics