Simplify the expression. Assume that all variables are positive.
A. y3/4
B. y
C. 
D. y1/2
Answer: D
Mathematics
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Change to decimal numbers.
A. 0.84 B. 0.75 C. 0.74 D. 0.64
Mathematics
Without using the trigonometric function keys, use a calculator and the given trigonometric values to find the indicated value.Given:sin 21° = 0.3584cos 21° = 0.9336tan 21° = 0.3839Find csc 159°.
A. -1.0711 B. 2.7902 C. 1.0711 D. 0.3584
Mathematics
Solve the problem.pH = -log10[H+] Find the pH if the [H+] = 4.5 × 10-3.
A. 2.35 B. 2.65 C. 3.65 D. 3.35
Mathematics
Write the solution set to the inequality in interval notation.x ? 5
A. [5, ?) B. (5, ?) C. (-?, 5) D. (-?, 5]
Mathematics