Use Cramer's rule to solve the linear system.3x + 5y = 54-2x + 2y = 12
A. (3, 9)
B. (9, 3)
C. (-3, -9)
D. (-9, 3)
Answer: A
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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.
?
What will be an ideal response?
Provide an appropriate response.Write a problem for a classmate to solve. Devise the problem so that a system of one linear equation and one nonlinear equation must be used.
What will be an ideal response?
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 2
B. x2 + 2
C. 
D. 
Find the real solutions of the equation.(3x - 7)1/2 = 4
A. {
}
B. {
}
C. {
}
D. no real solution