Provide an appropriate response.Solve the system of equation using the addition method:3a - b = 32a = b
A. a = 0, b = -3
B. a = 3, b = 6
C. a = 
, b = 
D. a = 2, b = 3
Answer: B
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Provide an appropriate response.A student knows that 
diverges, but needs to investigate 
, where 
Does this integral necessarily also diverge?
A. Yes B. No
Express the trigonometric function in terms of the same function of a positive acute angle.cos 405°
A. -cos 45° B. -cos 90° C. cos 45° D. cos 90°
Provide an appropriate response.Suppose that Tori can invest $13,000 in a business that guarantees her the following cash flows: $6000 at the end of 2 years, $5000 at the end of 4 years, and $4000 at the end of 6 years. Assuming an interest rate of 6% compounded monthly, find the present value of the cash flows. Is the investment profitable?
Fill in the blank(s) with the appropriate word(s).
Fill in the blank with one of the words or phrases listed below.
In the proportion 
= 
, x ? 16 and 2 ? 7 are called 
.
A. proportion B. equal C. not equal D. cross products