Provide an appropriate response.The solution set of the system y1 = -x + 5 and y2 = -2x + 7 is {(2, 3)}. Using slopes and y-intercepts, determine which of the two calculator-generated screens, left or right, is the appropriate one for this system.
A. Right
B. Left
C. Neither is correct.
D. Both could be correct.
Answer: A
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Find fraction notation for the percent notation in the problem.Sales of a particular product increased 31% over last year's sales of the product.
A. 
B. 
C. 
D. 
Find z1z2. Write the answer in polar form with the argument between 0° and 360°.z1 = 2 + 2i, z2 = 
- i
A. 4
(cos 15° + i sin 15°)
B. 4(cos 15° + i sin 15°)
C. 4(cos 345° + i sin 345°)
D. 4
(cos 345° + i sin 345°)
Solving the following equation will require you to use the quadratic formula. Solve the equation for ? between 0° and 360°, and round your answers to the nearest tenth of a degree.
?
?
A. 65.1°, 294.9° B. 65.7°, 294.3° C. 66.5°, 293.5° D. 65.3°, 294.7° E. 65.5°, 294.5°
Solve the problem.A promotional deal for long distance phone service charges a $15 basic fee plus $0.05 per minute for all calls. If Joe's phone bill was $66 under this promotional deal, how many minutes of phone calls did he make? Round to the nearest integer, if necessary.
A. 3 minutes B. 1020 minutes C. 1620 minutes D. 10 minutes