Solve the problem.Two cars start from the same point and travel in the same direction. If one car is traveling 62 miles per hour and the other car is traveling at 56 miles per hour, how far apart will they be after 2.3 hours?
A. 128.8 mi
B. 13.8 mi
C. 271.4 mi
D. 142.6 mi
Answer: B
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?Complete the following chart of equivalents with a correct percent and fraction: Decimal Percent Fraction 8.8 ? ? ?
A.
?Percent: 0.088%, Fraction: 
B.
?Percent: 8.8%, Fraction: 
C.
?Percent: 880%, Fraction: 
D.
?Percent: 880%, Fraction: 
E.
?Percent: 8.8%, Fraction: 
Assume that a sample of bivariate data yields the correlation coefficient, r, indicated. Use the critical values table for the specified sample size and level of significance to determine whether a linear correlation exists.r = 0.672 when n = 18 at ? = 0.05
A. Yes B. No
Find T, N, and B for the given space curve.r(t) = (t2 - 1)i + (2t - 10)j + 5k
A. T = 
i + 
j; N = 
i - 
j; B = -k
B. T = 
i - 
j; N = - 
i - 
j; B = -k
C. T = 
i + 
j; N = 
i - 
j; B = -k
D. T = 
i + 
j; N = 
i - 
j; B = k
Write the equation in standard form for an ellipse centered at (h, k). Identify the center and the vertices.5x2 + 3y2 + 12y - 3 = 0
A. C(-2, 0); V(-2, ±
); 
+ 
= 1
B. C(-2, 0); V(±2, 
); 
+ 
= 1
C. C(0, -2); V(0, -2 ± 
); 
+ 
= 1
D. C(0, -2); V(±
, -2); 
+ 
= 1