Sketch the graph of the equation. If the graph is a parabola, find its vertex. If the graph is a circle, find its center and radius.x = y2 + 10y + 23
A. vertex (-2, 5)
B. vertex (-2, -5)
C. vertex (2, -5)
D. vertex (-5, -2)
Answer: B
Mathematics
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Find the triple scalar product (u x v) ? w of the given vectors.u = -5i - 3j + 4k; v = 6i - 6j + 10k; w = 8i - 5j - 10k
A. -898 B. 12 C. -58 D. -922
Mathematics
Solve.g - 18 = 48 - 10g
A. g = -12 B. g = 6 C. g = -6 D. g = 12
Mathematics
Find the value of the variable that satisfies the equation.
x - 3 = 1
A. x = 4 B. x = 8 C. x = -8 D. x = -4
Mathematics
Solve the problem.In a school survey, students showed these preferences for instructional materials. Answer the question. 
About how many students would you expect to prefer radio in a school of 250 students?
A. About 5 students B. About 90 students C. About 45 students D. About 13 students
Mathematics