Solve the problem.You drive 123 miles along a scenic highway and then take a 25-mile bike ride. Your driving rate is 4 times your cycling rate. Suppose you have no more than a total of 7 hours for driving and cycling. Let x represent your cycling rate in miles per hour. Write a rational inequality that can be used to determine the possible values of x. Do not simplify and do not solve the inequality.
A. 
+ 
? 7
B. 
+ 
? 7
C. 
+ 
? 7
D. 
+ 
? 7
Answer: B
Mathematics
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State whether the function is linear or quadratic.f(x) = 3x2 - 18x
A. Linear B. Quadratic
Mathematics
Evaluate the integral.
A. 
tan4 4x - 
tan2 4x - ln 
+ C
B. - 
tan4 4x + 
tan2 4x - 
ln 
+ C
C. 
tan4 4x - 
tan2 4x + 
ln 
+ C
D. 
tan4 4x - 
tan2 4x - 
ln 
+ C
Mathematics
Collect like terms.-2x - 6.4y + 9.7x - 2.7y - 7.7x + 9.1y
A. 6.7x - 5.1y B. 6.7x + 5.1y C. -6.7x + 5.1y D. 0
Mathematics
Simplify the expression. Assume all variables represent nonzero real numbers.(-2t5)(5t2)(-3t7)
A. 30t14 B. 0t14 C. 0t12 D. 30t15
Mathematics