Find the product or quotient, using trigonometric form. Write the answer in the form a + bi.(6 - 6i)(7 + 8i)
A. -48i2 + 6i + 42
B. 90 - 6i
C. -6 - 90i
D. 90 + 6i
Answer: D
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Provide an appropriate response.Poaching is causing a population of elephants to decline by 5% per year. Use the approximate half-life formula to determine the fraction that remains in 59 years if there are 8661 elephants today.
A. 18,250 elephants B. 4829 elephants C. 467 elephants D. 8243 elephants
Evaluate.62 × 42
A. 526 B. 536 C. 516 D. 576
Solve.
- 2 = 13
A. -10, 10 B. 16, 10 C. -20, 10 D. -6, 10
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).
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
src="https://sciemce.com/media/4/ppg__file0518192205__f1q74g3.jpg" style="vertical-align: -23.0px;" /> is 
, find a.
A. a = 15,850
B. a = 14,655
C. a = 15,600
D. a = 14,900