Find an equation of variation in which the following are true.y varies directly as the square of x, and y = 3.75 when x = 5.
A. y = 1.72x2
B. y = 0.19
C. y = 0.15x2
D. y = 0.2x2
Answer: C
Mathematics
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Find the expected value.A fair coin is tossed three times, and a player wins $3 if 3 tails occur, wins $2 if 2 tails occur and loses $3 if no tails occur. If one tail occurs, no one wins. What is the expected value of the games?
A. $0.75 B. $2.00 C. -$3.00 D. $3.00
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. 
C. 
D. 
Mathematics
Write the expression in lowest terms.
A. -y B. 1 C. 0 D. -1
Mathematics
Decide whether the slope is positive, negative, zero, or undefined.
A. Zero B. Negative C. Positive D. Undefined
Mathematics