Express the graph shown using interval notation. Also express it as an inequality involving x.
A. [4, 7)
4 ? x < 7
B. [4, 7]
4 ? x ? 7
C. (4, 7]
4 < x ? 7
D. (4, 7)
4 < x < 7
Answer: A
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Write the function in terms of its cofunction. Assume that any angle in which an unknown appears is an acute angle.csc 35°
A. csc 145° B. sec 55° C. sin 55° D. sec 35°
Provide the proper response.A homework problem was "Find 
% of $1,300." Student answers were $3.25, $32.5, $325, and $3,250. Which is correct? What mistakes were made in getting the answers that are wrong?
What will be an ideal response?
Write an equation of the line with the indicated slope and y intercept.Slope = 
; y intercept = - 
A. y = 
x - 
B. y = 
x - 
C. y = - 
x + 
D. y = 
x + 
Find the magnitude and direction angle (to the nearest tenth) for each vector. Give the measure of the direction angle as an angle in [0,360°].
A. 20; 150°
B. 20
; 60°
C. 40; 30°
D. 20; 30°