Convert the polar equation to a rectangular equation. Then determine the graph's slope and y-intercept.r cos 
= 1
A. y = -x
+ 2; slope: -
; y-intercept: 2
B. y = x
- 2; slope: 
; y-intercept: -2
C. y = x
+ 2; slope: 
; y-intercept: 2
D. y = -x
- 2; slope: -
; y-intercept: -2
Answer: B
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A. irrational B. integer C. natural D. whole E. negative
Change the measurements on this scale drawing to decimals and round them to the nearest tenth of an inch. src="https://sciemce.com/media/4/ppg__tttt0622191212__f1q50g6.jpg" style="vertical-align: -17.0px;" /> in. length b is:
A. 0.4 in.
B. 0.3 in.
C. 0.1 in.
D. 0.2 in.
a 4
in. b 
in. c 
in. d 
in. e 2
Find the domain of the function.f(x) = log1/2(x + 4)
A. (-?, -4) B. (4, ?) C. (-?, 4) D. (-4, ?)
Solve the problem.Suppose that the salinity S of ocean water at a given depth d is modeled by the equation 
where S is measured in grams salt per kilogram water and d is measured in meters. What is the salinity when the depth is 17 m? Round your answer to the nearest hundredth.
A. 30.03 g salt/kg water B. 34.35 g salt/kg water C. 36.95 g salt/kg water D. -26.77 g salt/kg water