Solve the equation for the specified variable.
+ 
= c for b
A. b = 
- a
B. b = ac - 
C. b = 
D. b = 
Answer: C
Mathematics
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Find 
and 
.f(x, y) = 
A. 
= - 
; 
= - 
B. 
= - 
; 
= - 
C. 
= 
; 
= 
D. 
= - 
; 
= - 
Mathematics
Solve the equation by completing the square.9x2 + 18x + 5 = 0
A. - 
, - 
B. - 
, - 
C. - 
, 
D. 
, 
Mathematics
Solve the problem.How long would it take to drive 720 kilometers if your average rate of speed was 80 kilometers per hour? Use the formula d = rt.
A. 9 hr B. 80 hr C. 10 hr D. 576 hr
Mathematics
Solve.A triangle is 6 cm wider than it is tall. The area is 140 cm2. Find the width (length of the base). 
A. 6 cm B. 20 cm C. 14 cm D. 21 cm
Mathematics