Find the square root.

A.
B.
C.
D.


Answer: B

Mathematics

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Solve the problem.A certain radioactive isotope decays at a rate of 2% per 100 years. If t represents time in years and y represents the amount of the isotope left then the equation for the situation is  In how many years will there be 90% of the isotope left?

A. 527 yr B. 246 yr C. 1000 yr D. 500 yr

Mathematics

Find the limit, if it exists.

A. 4
B. 4
C. 0
D. Does not exist

Mathematics

Find the requested term in the sequence.The next term in 8, 32, 96, 288, 864, . . .

A. 69,984 B. 2592 C. 7776 D. 23,328

Mathematics

Find the vertex, the y-intercept, and the x-intercepts (if any exist), and graph the function.y = 9x2 - 18x

A. vertex (9,-18); 
x-int: (0, 0) and (9, 0); 
y-int: (0, 0)

B. vertex (1,-9); 
x-int: (0, 0) and (2, 0); 
y-int: (0, 0)

C. vertex (2,-18); 
x-int: (0, 0) and (1, 0); 
y-int: (0, 0)

D. vertex (-1,-9); 
x-int: (0, 0) and (-2, 0); 
y-int: (0, 0)

Mathematics