Solve the equation.5x2 - 30x + 40 = 0
A. x = 5, 2, 4
B. x = -2, -4
C. x = 0, 2, 4
D. x = 2, 4
Answer: D
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Solve the problem.Suppose that sales of a particular brand of appliance satisfy the relationship 
where y represents the number of sales in year x, with 
corresponding to 1992. What does the ordered pair 
mean in the context of the situation? 
A. In 2000, sales of the appliance were 2580. B. In 2000, sales of the appliance were 2370. C. In 2000, sales of the appliance were 4950. D. In 2000, sales of the appliance were 5160.
Translate the given formula to an English phrase using the word "varies".P = 
, where P is the gas pressure of N molecules of a gas in a volume V at temperature T
What will be an ideal response?
Solve the problem.Technology matrix A, representing interindustry demand, and matrix D, representing consumer demand for the sectors in a three-sector economy, are given. Use the matrix equation 
to find the production level X that will satisfy both demands.A = 
, D = 
A.
X = 
B.
X = 
C.
X = 
D.
X = 
Find the first five terms of the geometric sequence with the given first term and common ratio.a1 = 4, r = -3
A. -12, 36, -108, 324, -972 B. 4, 12, 36, 108, 324 C. 4, 1, -6, -5, -8 D. 4, -12, 36, -108, 324