Evaluate each expression without using a calculator. Give the result in degrees.sin-1 (0)
A. 45°
B. 270°
C. 0°
D. 90°
Answer: C
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Solve the problem.A window is in the form of a rectangle surmounted by a semicircle. The rectangle is of clear glass, whereas the semicircle is of tinted glass that transmits only one-third as much light per unit area as clear glass does. The total perimeter is fixed. Find the proportions of the window that will admit the most light. Neglect the thickness of the frame.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
R1 = 3 Kê, R2 = 6 Kê, and R3 = 2 Kê.
Find IT if VR = 10 V.
2
a. 1.67 mA
b. 3.33 mA
c. 5.00 mA
d. 8.83 mA
e. 10.00 mA
Solve the problem.General Insurance offers a $500,000 life insurance policy. Monthly rates for women and men are shown in the table for various ages. Monthly Rate (dollars)
Let W(t) and M(t) be the monthly rates (in dollars) for women and men, respectively, both at t years of age. Find the regression equation for M and predict how much a 38-year-old man would pay per month for a $500,000 policy.
A. M(t) = 0.79(1.07)t; 10.33 B. M(t) = 6.23(1.07)t; 81.48 C. M(t) = 6.44(1.08)t; 119.95 D. M(t) = 0.58(1.08)t; 10.80
Solve the problem. Round to the nearest tenth if necessary.Enrollment in a business seminar increased from 68 people to 89 people. What was the percent of increase?
A.
| 76.4% |
B.
| 69.1% |
C.
| 23.6% |
D. 30.9%