The diameter of a ball was measured with a degree of accuracy to the nearest 1cm; the diameter equaled 20 cm. What is the smallest possible volume of the ball (V=4/3πr^3) to the nearest cm^3? A. 2255cm^3
B.3882cm^3
C. 7765cm^3
D. 15530cm^3

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

Which expressions are equivalent to -7+3(-4e-3)? choose all answers that apply: choose all answers that apply: a -4(3e+4)? 4(3e+4) b 12e12e c none of the above

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true