Provide an appropriate response.The line of symmetry of a parabola is called the 
of the parabola.
A. axis
B. x-intercept
C. y-intercept
D. vertex
Answer: A
Mathematics
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Simplify the expression. First use the distributive property to remove any parentheses.-5(2x + 3)
A. -10x - 15 B. -3x - 2 C. -25x D. -10x + 3
Mathematics
Multiply. Write the product in lowest terms.
of 70
A. 84
B. 30
C. 
D. 1
Mathematics
Determine whether the expression is a polynomial. If it is a polynomial, give its degree.
A. polynomial, degree 5 B. polynomial, degree 14 C. not a polynomial D. polynomial, degree -4
Mathematics
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