Is the function graphed one-to-one?
A. No
B. Yes
Answer: B
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Find the exact value of the indicated trigonometric function of the angle ? in the figure. Rationalize the denominator where necessary.Find cot ?.
A. 
B. 
C. 
D. 
In chemistry the formula of pH is: pH= -log[H+] where H+ is the concentration of the hydrogen ions. A mixture of acetic acid has a pH of 3.4. Find the concentration of hydrogen ions in the mixture.
What will be an ideal response?
An account contains A dollars and increases or decreases by R%. For A and R: (a) Find the increase or decrease in the value of the account. (b) Find the value of the account. (c) By what factor did the account value increase or decrease? A = $300, R = 190%
A. (a) $595; (b) $895; (c) 3.9 B. (a) $520; (b) $820; (c) 1.9 C. (a) $580; (b) $880; (c) 1.4 D. (a) $570; (b) $870; (c) 2.9
Find the area under the graph of the function over the interval given.y = ex; [-9, 4]
A. e4 - 
B. e4 + e9
C. e13
D. e4 - e9