Solve using the addition principle and/or the multiplication principle.
x = 21
A. 84
B. 80
C. 25
D. 63
Answer: A
Mathematics
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Use the given graph of the quadratic function f to write its formula as 
.
A. f(x) = -(x + 1)2 - 3 B. f(x) = -(x - 1)2 - 3 C. f(x) = -(x + 1)2 + 3 D. f(x) = (x + 1)2 - 3
Mathematics
Simplify the radical expression by factoring out the largest perfect nth power. Assume that all variables are positive.
A. 7
B. 6
C. 61
D. 5
Mathematics
Divide. Write a mixed numeral for the answer.5
÷ 1
A. 5
B. 4
C. 4
D. 4
Mathematics
Indicate whether the graph of the equation is a circle, an ellipse, a hyperbola, or a parabola. Then graph the conic section.(x - 2)2 + (y + 1)2 = 16
A. circle
B. hyperbola
C. ellipse
D. parabola
Mathematics