State whether the parabola opens upward or downward.y = 2x - 4x2 + 9
A. Upward
B. Downward
Answer: B
Mathematics
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Use the ac method to factor the trinomial, or state that the trinomial is prime.6x2 + 13x + 6
A. (2x + 3)(3x + 2) B. (6x + 3)(x + 2) C. (2x - 3)(3x - 2) D. prime
Mathematics
Write percents as decimals and decimals as percents.Rainfall decreased by 0.359 this year.
A. 0.359% B. 0.0359% C. 3.59% D. 35.9%
Mathematics
Solve the formula for the specified variable.A = 
h(B + b) for B
A. B = 
B. B = 
C. B = 2A - bh
D. B = 
Mathematics
Evaluate without the use of a calculator.sec-1 (-1)
A. ?
B. 0
C. 2?
D. 
Mathematics