Prepare a probability distribution for the experiment. Let x represent the random variable, and let P represent the probability.Three coins are tossed, and the number of heads is noted.
A. 
B. 
C. 
D. 
Answer: B
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Decide whether or not the given equation is an identity.sin y tan y + cos y = sec y
A. Yes B. No
Decide whether the statement is an example of the commutative, associative, identity, inverse, or distributive property.5 + 3 = 3 + 5
A. Identity B. Commutative C. Associative D. Distributive
Match the equation of the ellipse with the appropriate description.4x2 + 25y2 = 2500
A. x-intercepts (100, 0), (-100, 0); y-intercepts (0, 625), (0, -625) B. x-intercepts (25, 0), (-25, 0); y-intercepts (0, 10), (0, -10) C. x-intercepts (10, 0), (-10, 0); y-intercepts (0, 25), (0, -25) D. x-intercepts (625, 0), (-625, 0); y-intercepts (0, 100), (0, -100)
Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.6x2 - 5xt - 6t2
A. (2x + 3t)(3x - 2t) B. prime C. (2x - 3t)(3x + 2t) D. (6x - 3t)(x + 2t)