Use a calculator to find the value of y in degrees rounded to two decimal places.y = tan-1 0.5124
A. 32.13°
B. 29.13°
C. 27.13°
D. 22.13°
Answer: C
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Solve the inequality and graph the solution set.x - 2 < -6
A. {x 
}
B. {x 
}
C. {x 
}
D. {x 
}
Use the counting principle to obtain the answer.A local department store sold carpets in 4 sizes. Each carpet came in 3 qualities. One size of carpet came in 7 colors. The other sizes came in 3 colors. How many choices of carpet were there?
A. 55 B. 52 C. 48 D. 57
From the graph of the parabola, determine whether the parabola opens upward or downward, and find the vertex, axis of symmetry, and range of the function. Find the maximum or minimum value of the function and the intervals on which the function is increasing or decreasing.
A. Down, (3, 9), x = 3, (-?, 9], max 9, inc (0, 9], dec (-?, 0] B. Down, (3, 9), x = 9, [3, ?), max 9, inc (-?, 3], dec [3, ?) C. Down, (3, 9), x = 9, [9, ?), max 9, inc (-?, 3], dec [3, ?) D. Down, (3, 9), x = 3, (-?, 9], max 9, inc (-?, 3], dec [3, ?)
Use substitution to determine whether the given ordered pair is a solution of the given equation.
; 2x + 7y = 9
A. Yes B. No