A statement is made about correlation. State whether the correlation is positive or negative and whether the correlation is most likely due to coincidence, a common underlying cause, or a direct cause.People who drive faster, cover the distance in a shorter time.
A. Positive correlation; common underlying cause
B. Positive correlation; direct cause
C. Negative correlation; direct cause
D. Negative correlation; common underlying cause
Answer: C
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Compute r''(t).r(t) = (cos 3t)i + (2 sin t)j
A. r''(t) = (-3 cos 3t)i + (2 sin t)j B. r''(t) = (-9 cos 3t)i + (-4 sin t)j C. r''(t) = (9 cos 3t)i + (-2 sin t)j D. r''(t) = (-9 cos 3t)i + (-2 sin t)j
Find the derivative of the function.y = 
A. 
= -9x + 12 + 2x-2
B. 
= -18x - 2x-2
C. 
= -18x + 12 - 2x-2
D. 
= -18 - 2x
Write as Decimal Number.Seven and six hundred nineteen ten-thousandths
A. 7.619 B. 7.00619 C. 0.70619 D. 7.0619
Solve.The floor plan of an office building is shown in the figure. If the entire surface is to be covered in carpet costing $32 per square yard, what will be the total cost of the carpet? (Assume that all corners are right angles. Round to the nearest dollar.)
A. $1649 B. $5817 C. $7182 D. $7893