Represent the following using variables.If Ikuko has 2x - 8 yen and Randal has x yen, how much money do they have combined?
A. 2x - 8 yen
B. -5 yen
C. 2x + 9 yen
D. 3x - 8 yen
Answer: D
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Solve the problem.A construction company buys a truck for $39,000. The truck is expected to last 16 years, at which time it will be worth $3800. Write a function v(x) that describes the value of the truck at any time during its lifetime. Be sure to state the domain of the function.
A. v(x) = 39 ,000 - 2300t, with domain 0 ? t ? 16 B. v(x) = 39 ,000 - 2200t, with domain 0 ? t ? 16 C. v(x) = 39 ,000 - 2500t, with domain 0 ? t ? 16 D. v(x) = 39 ,000 + 2200t, with domain 0 ? t ? 16
Solve the problem.A patient weighing 160 lb. is to receive 7.7 mg/kg of azithromycin. If each capsule contains 310 mg, then how many capsule should the patient receive? Round up to the next whole capsule if necessary.
A. 2 capsules B. 1 capsules C. 4 capsules D. 3 capsules
Graph.f(x) = 
+ 2 [Hint: Evaluate f at some perfect cubes]
A. 
B. 
C. 
D. 
Solve the problem.The value of a certain make and model of used car can depend on several factors. The table gives data for the values of three Chevy Caprice station wagons. The value V is measured in dollars, where A is the age of the car in years, and C is the condition of the car rated on a scale of 1 to 10 (10 is excellent condition). src="https://sciemce.com/media/4/ppg__file0518192205__f1q76g3.jpg" style="vertical-align: -23.0px;" /> is 
The variables are found to be related by the equation 
Use the information given in the table to write a matrix equation which when solved will yield the values of a, b, and c. Then, using the fact that the inverse of the matrix 
, find c.
A. c = -200
B. c = -400
C. c = 400
D. c = 200