Solve. Clear fractions first.x + 
x = 18
A. 36
B. 12
C. 6
D. 15
Answer: B
Mathematics
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Find the coordinates of the vertex and the direction of opening of each parabola.y = (x + 1)2 + 1
A. (0, 1) opens downward B. (-1, 1) opens upward C. (-1, -1) opens upward D. (1, 0) opens downward
Mathematics
Solve. Check for extraneous solutions.
= 5 - 2x
A. 
B. {5}
C. 
D. 
Mathematics
Solve the formula for the specified variable.A = 
h(b1 + b2) for b1
A. b1 = 
B. b1 = 
C. b1 = 
D. b1 = 
Mathematics
Find two consecutive positive integers whose product is 
.
A. 
B. 
C. 
D. 
E. 
Mathematics