Find an equivalent equation in rectangular coordinates.r = 1 + 2 sin ?
A. x2 + y2 = + 2x
B. = x2 + y2 + 2x
C. = x2 + y2 + 2y
D. x2 + y2 = + 2y
Answer: D
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Solve.The formula for calculating simple interest is I = prt. If the amount of interest, I, is $33.60, the principal (amount of money invested), p, is $210.00, and the rate of interest, r, is 8%, find the amount of time, t.
A. t = 0.2 yr B. t = 564.48 yr C. t = 5.6448 yr D. t = 2 yr
Use the given information to find the exact value of the trigonometric function.sec ? = 4; The terminal side of ? lies in Quadrant I.
Find cos 
.
A. 
B. 
C. 
D. 
Determine the order of the matrix.
A. 8 B. 2 C. 4 × 2 D. 2 × 4
Solve the problem.Use the floor plan shown to complete the exercise. On the plan, one inch (abbreviated in.) represents four feet. What is the length and width of the master bedroom?
A = 3.2 in.D = 2.6 in.B = 1.6 in. E = 4.9 in.C = 3.1 in.
A. 19.6 feet, 12.8 feet B. 1.2 feet, 0.8 foot C. 38.4 inches, 58.8 inches D. 58.8 inches, 38.4 inches