Find the volume of the sphere or the cylinder. Use ? = 3.14 when needed. Round to the nearest thousandth if necessary.A sphere with diameter 4 ft.
A. 267.947 ft3
B. 33.493 ft3
C. 18.84 ft3
D. 16.747 ft3
Answer: B
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Divide. Use bar notation to write repeating decimals. 25.9/4
A. 6.475 B. 0.6475 C. 64.75 D. 0.06475
Solve the equation. Express radicals in simplest form.(x + 4)2 - 3 = 0
A. 4 ± 
B. -4 ± 
C. -1, 7
D. -2 ± 
The estimated number of computers (in millions) connected to the Internet in Europe from 1998 through 2002 is summarized in the accompanying table:
Year, x01234Net-Connected Computers, y21.732.145.058.369.6?
(Here, 
corresponds to the beginning of 1998.)Find an equation of the least-squares line for these data. Use the result to estimate the projected number of computers connected to the Internet in Europe at the beginning of 2005, assuming the trend continues. Round your answer to three decimal places.
?
A. 
million computers
B. 
million computers
C. 
million computers
D. 
million computers
Find the product.[x - (1 + 4i)][x - (1 - 4i)]
A. x2 - 15 B. x2 - 2x + 17 C. x2 - 2x - 15 D. x2 - 17