Find the exact value. Do not use a calculator.csc 45°
A. 
B. 
C. 
D. 
Answer: A
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Let z vary jointly with x and y. Find the constant of variation k. Then, use 
to find z when x = 5 and y = 7.z = 56 when x = 
and y = 7
A. k = 15; z = 490 B. k = 14; z = 525 C. k = 48; z = 1,680 D. k = 56; z = 1,960
Solve the problem.In order to measure the distance across a pond (from A to B), Jung Wa made some measurements, which are given below the drawing. What is the distance (to the nearest unit)? src="https://sciemce.com/media/4/ppg__ttt0622191554__f1q29g6.jpg" alt="" style="vertical-align: -4.0px;" /> 
A. 179 ft
B. 175 ft
C. 149 ft
D. 152 ft
Convert the polar equation to rectangular form. Identify the curve.r = 10 sin ?
A. 
= 10y; a circle centered at (0, 5) with radius 5
B. 
= 10x; a circle centered at (5, 0) with radius 5
C. x2 + y2 = 10x; a circle centered at (5, 0) with radius 5
D. x2 + y2 = 10y; a circle centered at (0, 5) with radius 5
Make a time plot for the indicated data.In 1990, Dardenne received 48 inches of rain; in 1991, 50; in 1992, 48; 
in 1997, 51; in 1998, 55; and in 1999, 57. 
A. 
B. 
C. 
D. 