Find the vertex and axis of symmetry of the graph of the function.f(x) = x2 + 3x - 2
A. (-1, -2) ; x = -1
B. 
; x = - 
C. 
; x = 
D. (3, 16) ; x = 3
Answer: B
Mathematics
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Solve for x using an equivalent exponential expression.A city has been growing at a rate of 0.8% annually. If there are currently 3,911,000 residents in the city, how many (to the nearest ten-thousand) would be living in this city six years from now? Use the function 
.
A. 510,000 B. 4,130,000 C. 10,560,000 D. 4,100,000
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Add. Do not use a number line except as a check.-28 + 99
A. 127 B. 71 C. -71 D. -127
Mathematics
Decide what number must be added to the binomial to make a perfect square trinomial.x2 - 
x
A. - 
B. 
C. 
D. - 
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Find the exact value using a double-angle identity.tan(480°)
A. 
B. - 
C. - 
D. 0
Mathematics