Solve the problem.A radio telescope has a parabolic surface. If it is 1 m deep and 20 m wide, how far is the focus from the vertex?

A. 1 m
B. 5 m
C. 25 m
D. 100 m


Answer: C

Mathematics

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Multiply and simplify.(10 + 9)(7 + 8)

A. 206 + 143
B. 70 + 72
C. 70 + 72 + 143
D. 494 + 143

Mathematics

Change the exponential expression to an equivalent expression involving a logarithm.62 = 36

A. log366 = 2 B. log636 = 2 C. log62 = 36 D. log236 = 6

Mathematics

Identify the percent p, base b, and amount a. Do not solve for the unknown.11.3 is what percent of 62?

A. 11.3; b; 62 B. p; 11.3; 62 C. 11.3; 62; a D. p; 62; 11.3

Mathematics

Solve the system by the Gauss-Jordan method. ?

What will be an ideal response?

Mathematics