Find all natural number values of b that make the trinomial factorable.x2 + bx + 28
A. 11, 16, 29
B. 11, 16
C. 1, 14, 28
D. 16, 29
Answer: A
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Solve the problem.The spring of a spring balance is 6.0 in. long when there is no weight on the balance, and it is 8.3 in. long with 9.0 lb hung from the balance. How much work is done in stretching it from 6.0 in. to a length of 12.2 in.?
A. 4.9 in.-lb B. 75 in.-lb C. 220 in.-lb D. 12 in.-lb
Match the equation with the surface it defines.
- 
= 
A. Figure 3 B. Figure 2 C. Figure 4 D. Figure 1
Find a cofunction with the same value as the given expression.sin 67°
A. tan 23° B. cos 23° C. cot 23° D. cos 67°
Solve the problem.A television manufacturing company has two different factories. The profit function for Factory I when x televisions are manufactured and sold is as follows: P(x) = -0.07x2 + 25x - 250The profit function for Factory II when x televisions are manufactured and sold is as follows: P(x) = -0.075x2 + 35x - 1500For what number of televisions is the profit the same at both factories, and what is the profit?
A. 0 televisions; $0 B. 125 televisions; $1781.25 C. 233 televisions; $2583.33 D. 134 televisions; $1843