Find the indicated probability. Round your answer to 6 decimal places when necessary.A bag contains 5 red marbles, 4 blue marbles, and 1 green marble. What is the probability of choosing a marble that is not blue?
A. 
B. 6
C. 
D. 
Answer: D
Mathematics
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Solve the problem.A = ?r2, where r is the radius, in centimeters. By approximately how much does the area of a circle decrease when the radius is decreased from 2.0 cm to 1.9 cm? (Use 3.14 for ?.)
A. 1.1 cm2 B. 1.5 cm2 C. 0.6 cm2 D. 1.3 cm2
Mathematics
Use a sum-to-product identity to rewrite the expression.sin 
+ sin 
A. 2
B. 2
C. 2
D. 2
Mathematics
By making a table of both the left and right sides of the equation, conjecture if the equation represents an identity. cos2 ? + sin2 ? = csc2 ? + cot2 ?
A. No B. Yes
Mathematics
Solve for y, and use a function grapher to graph the conic.16x2 + y2 + 32x + 4y - 12 = 0
A. y = -2 + 4
B. y = 2 ± 4
C. y = 2 ± 4
D. y = -2 ± 4
Mathematics