Find an equation of the parabola described.Focus at (5, 0); vertex at (0, 0)
A. x = 20y2
B. y2 = 20x
C. x2 = 20y
D. y = 20x2
Answer: B
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Simplify using order of operations.3(-8 + 8) - (2 - 6)
A. 12 B. -4 C. -12 D. 4
Factor completely.98x2 - 112xy + 32y2
A. 2(7x - 4y)2 B. 2(49x2 - 56xy + 16y) C. 2(7x + 4y)(7x - 4y) D. (14x - 8y)(7x - 4y)
Write expanded notation.20,650
A. 2 ten thousands + 6 thousands + 5 tens B. 2 ten thousands + 6 hundreds + 5 tens C. 2 thousands + 6 hundreds + 5 ones D. 2 thousands + 6 tens + 5 ones
When buying gasoline, you notice that 16 gallons of gasoline is approximately the same amount of gasoline as 51 liters. Use this information to find a linear model that relates liters y to gallons x. Then use the model to find the numbers of liters in 25 gallons and 45 gallons. (Round your answer to one decimal place.) ?
A. Model: y = 
x; 7.8 L, 14.1 L
B. Model: y = 
x; 79.7 L, 14.1 L
C. Model: y = 
x; 7.8 L, 143.4 L
D. Model: y = 
x; 79.7 L, 143.4 L
E. Model: y = 
x; 79.7 L, 143.4 L