Provide the requested information about the circular function.What are the y-intercepts of y = cos x?
A. 1
B. none
C. 0
D. -1
Answer: A
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Use a finite approximation to estimate the area under the graph of the given function on the stated interval as instructed.f(x) = x2 between x = 0 and x = 2 using a lower sum with two rectangles of equal width.
A. 1 B. 2.5 C. 4.5 D. 5
Draw a complete graph so that it has the given type of symmetry.Symmetric with respect to the x-axis
A. 
B. 
C. 
D. 
?The probability of recall in an experiment is modeled by 
, 
where x is the percent of recall. What is the probability of recalling between 50% and 80%? Round your answer to three decimal places.
?
A. ?0.387 B. ?0.221 C. ?0.685 D. ?0.173 E. ?0.867
Find the solution to the system by addition (elimination) method.7x + 56y = 56 4x - 7y = -7
A. (1, 0) B. (0, 0) C. (0, 1) D. (1, 1)