Solve the problem.If a rock falls from a height of 60 meters on Earth, the height H (in meters) after x seconds is approximately H(x) = 60 - 4.9x2.When does the rock strike the ground? Round to the nearest hundredth, if necessary.
A. 1.58 sec
B. 12.24 sec
C. 3.5 sec
D. 2.5 sec
Answer: C
Mathematics
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Write decimal number in words.2.000278
A. two and two hundred seventy-eight hundredths B. two and two hundred seventy-eight tenths C. two and two hundred seventy-eight millionths D. two and two hundred seventy-eight thousandths
Mathematics
Solve the problem.Alicia sold $3108 in paintings at the art fair. If she sold 6 paintings total, and they all sold for the same amount, what was the price of one painting?
A. $554 B. $518 C. $501 D. $418
Mathematics
Write as a percent. Round to the nearest hundredth of a percent when necessary.
A. 244.44% B. 2.44% C. 66.67% D. 24.44%
Mathematics
In a sample of size 
and the proportion that respond favorably is 
, then the standard error is:
A. 25
B. 5
C. 
D. 
Mathematics