Write the quadratic function in the standard form y = a(x - h)2 + k.y = -3x2 - 12x - 9
A. y = -3(x - 2)2 + 3
B. y = 3(x + 2)2 + 3
C. y = -3(x + 2)2 + 3
D. y = (x + 2)2 + 3
Answer: C
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Solve the problem by integration.Under specified conditions, the time t (in min) required to form x grams of a substance during a chemical reaction is given by 
Find the equation relating t and x if x = 0 g when 
A. t = 
ln 
+ 
ln 
B. t = 
ln 
- 
ln 4
C. t = 
ln 
- 
ln 
D. t = 
ln 
+ 
ln 4
Classify the angle as acute, right, obtuse, or straight.
A. Straight B. Acute C. Obtuse D. Right
Solve the equation.a2 = 100
A. 20 B. 121 C. 1024 D. 10
Use a proportion to solve the problem.The ratio of the width to the length of a picture frame is 8 to 13. If the width of the frame is 15 inches, what is its length?
A. 28 inches B. 24.375 inches C. 9.2 inches D. 23 inches