Find the missing quantities as requested.Find the circumference of the circle. Use 3.14 for ?.
A. 28.26 ft
B. 254.34 ft
C. 113.04 ft
D. 56.52 ft
Answer: D
Mathematics
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Add.12 + 39
A. 52 B. 50 C. 51 D. -27
Mathematics
Simplify the expression. Write the answer using positive exponents.
A. 
B. x-5
C. 5x
D. x5
Mathematics
Solve the equation by making an appropriate substitution.
2 - 12
- 28 = 0
A. {- 5, 3} B. {-2, 14} C. {- 5, - 1, 3, 15} D. no solution
Mathematics
Find the vertex, focus, and directrix of the parabola. Graph the equation.x2 = -16y
A. vertex: (0, 0)
focus: (4, 0)
directrix: x = -4
B. vertex: (0, 0)
focus: (0, -4)
directrix: y = 4
C. vertex: (0, 0)
focus: (-4, 0)
directrix: x = 4
D. vertex: (0, 0)
focus: (0, 4)
directrix: y = -4
Mathematics