Determine whether the given equation is an identity.-5(3x + 7) = -52 - 3x + 5x
A. Yes
B. No
Answer: B
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Find the probability.A die is rolled 20 times and the number of twos that come up is tallied. Find the probability of getting exactly two twos. Round to the nearest thousandth when necessary.
A. 0.011 B. 0.159 C. 0.116 D. 0.198
Find the exact value of the expression.sin 260° cos 20° - cos 260° sin 20°
A. - 
B. - 
C. 
D. - 
Find the center, radius, and intercepts of the circle.x2 + y2 - 4y - 21 = 0
A. (h, k) = (0, 2), r = 5
x-int: x = 
; y-int: y = 7
B. (h, k) = (2, 0), r = 25
x-int: x = ±
; y-int: y = 7, -3
C. (h, k) = (0, -2), r = 25
x-int: x = 
; y-int: y = 7, -3
D. (h, k) = (0, 2), r = 5
x-int: x = ±
; y-int: y = 7, -3
The graph of a function f is given. Use the graph to answer the question.Is f(20) positive or negative?
A. positive B. negative