Solve the problem.The value V of a car that is t years old can be modeled by V(t) = 19,558(0.82)t. According to the model, when will the car be worth $6000? Round to the nearest tenth of a year.
A. 51.1 yr
B. 6.0 yr
C. 0.9 yr
D. 1.8 yr
Answer: B
Mathematics
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Use differentiation to determine whether the integral formula is correct.
dx = -3 cot 
+ C
A. No B. Yes
Mathematics
Find the standard form of the equation of the hyperbola.
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics
Solve the rational equation.
= 
- 
A. ? B. {-8, -16} C. {-8} D. {-16}
Mathematics
Solve the problem.A man has 7 shirts and 8 ties. How many different shirt and tie arrangements can he wear?
A. 112 B. 64 C. 49 D. 56
Mathematics