Solve the equation by factoring.x2 + 7x - 30 = 0
A. x = -10, 3
B. x = -10, -3
C. x = 3, 10
D. x = -3, 10
Answer: A
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Solve the problem.The Redlich-Kwong equation provides an approximate model for the behavior of real gases. The equation is 
where P is pressure, V is volume, T is Kelvin temperature, and a,b , and R are constants. Find the derivative of the function with respect to each variable.
A. PV = 
+ 
; PT = - 
+ 
B. PV = 
- 
; PT = 
+ 
C. PV = 
+ 
; PT = 
- 
D. PV = 
- 
; PT = 
+ 
Solve the problem. The balance in your checking account is $829. You write checks for $42, $56, and $134. You then deposit $123 from your paycheck. What is your new balance?
A. $720 B. $710 C. $474 D. $1184
Solve the formula for the specified letter.S = 
for t2
A. t2 = 
B. t2 = 
C. t2 = 
D. t2 = 
Find the equation of a circle satisfying the given conditions.Center: (5, 0); radius: 1
A. (x + 5)2 + y2 = 1 B. x2 + (y - 5)2 = 1 C. (x - 5)2 + y2 = 1 D. x2 + (y + 5)2 = 1