Determine whether or not the given function is an exponential function.y = x7 + 9x
A. exponential
B. not exponential
Answer: B
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Provide an appropriate response.Does knowing that 
? 1 tell you anything about 
Give reasons for your answer.
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The average delay time D, in seconds, for a car waiting at a certain stop sign is given by
,
?
where q is the number of cars per second passing the stop sign.A: What is the average delay time if there are 0.13 cars per second passing the sign? Round your answer to two decimal places if necessary.B: The service rate S, for a stop sign is the number of cars per second that can leave the stop sign. It is related to the delay time by
.
Find a formula for S in terms of q.C: What flow rate will permit a service rate of 0.85 cars per second? Round your answer to two decimal places if necessary.
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Use this diagram of a regular pentagon to explain how to determine the formula for finding the vertex angle in a regular polygon.
Simplify by combining pairs of like terms.-b - 9c - 7b + 5c
A. -8b - 14c B. -6b - 4c C. -6b + 4c D. -8b - 4c