Find the length of the curve with the given vector equation.r(t) = (8 - 2t)i + (4 + 6t)j + (9t - 3)k, -7 ? t ? -1
A. -88
B. -968
C. 66
D. 726
Answer: C
Mathematics
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Solve the equation. First simplify the expression by combining like terms.5(y + 4) = 6(y - 3)
A. {2} B. {-2} C. {38} D. {-38}
Mathematics
The two triangles below are similar. Find the missing lengths.
A. x = 6.3; y = 3.6 B. x = 7.2; y = 3.9 C. x = 6.3; y = 3.9 D. x = 1.24; y = 3.6
Mathematics
Solve the problem.Two people are 41 years old and 21 years old, respectively. In x years from now, their ages can be represented by 
and 
Use long division to find the ratio of the older person's age to the younger person's age in x years.
A. 1 + 
B. 1.9524
C. 1 + 
D. 1 + 
Mathematics
?Find an equation of the tangent line to the graph of 
at the point (64, 3).
?
A. ?
B. ?
C. ?
D. ?
E. ?none of the above
Mathematics