Use the rules for exponents to rewrite the expression and then evaluate the new expression. 42 ? 45
A. 262,144
B. 16,777,216
C. 16,384
D. 1,048,576
Answer: C
Mathematics
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Solve the equation by completing the square.16n2 + 24n + 9 = 0
A. 
, 
B. - 
, - 
C. 
, 
D. - 
, - 
Mathematics
The equation gives the position s = f(t) of a body moving on a coordinate line (s in meters, t in seconds). s (m)
What is the body's velocity when t = 2.5 sec?
A. 2 m/sec B. 3 m/sec C. 1 m/sec D. -2 m/sec
Mathematics
Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.cos 7°
A. 0.99 B. -0.75 C. 0.75 D. -0.99
Mathematics
Using the definitions of "divisible" and "factor," answer the given question.Is 53 divisible by 7?
A. Yes B. No
Mathematics