Estimate by rounding as directed.31 + 0.582 + 79.99; nearest one
A. 109
B. 110
C. 112
D. 113
Answer: C
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Solve the problems.In a surveyed area, 96.7% of the residents signed up for the local park district pool pass. Write this percent as a decimal.
A. 9.67 B. 96.7 C. 0.0967 D. 0.967
Solve the problem.Assume the function f computes the number y in millions of people using the internet in year x. f = {(1996, 1.2), (1998, 4.3), (2000, 9.8) Evaluate f(2000) and give the domain and range of f
A. f(2000) = 4.3; D: {1.2, 4.3, 9.8}, R: {1996, 1998, 2000} B. f(2000) = 9.8; D: {1.2, 4.3, 9.8}, R: {1996, 1998, 2000} C. f(2000) = 1.2; D: {1996, 1998, 2000}, R: {1.2, 4.3, 9.8} D. f(2000) = 9.8; D: {1996, 1998, 2000}, R: {1.2, 4.3, 9.8}
Find the foci and endpoints of each axis for the given ellipse.
+ y2 = 1
A. Foci: (±
, 0); vertices: (± 14 , 0);
endpoints of the minor axis: (0, ± 1)
B. Foci: (± 143, 0); vertices: (± 144 , 0);
endpoints of the minor axis: (0, ± 1)
C. Foci: (±
, 0); vertices: (± 12, 0);
endpoints of the minor axis: (0, ± 1)
D. Foci: (0 , ±
); vertices: (± 12, 0);
endpoints of the minor axis: (± 1, 0)
Simplify. Write your answers in the form of a+bi, where a and b are real numbers.
A. 
+ 
i
B. 
C. 
- 
i
D. 
i