Find parametric equations for the tangent line to the curve with the given parametric equations at the specified point.


Mathematics

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Which of the following proportions are true for the given situation? Class A has 30 students, including 12 women.  Class B has 25 students including 16 men. ?

A.

?The ratio of men to students in Class A is greater than the ratio of women to students in class B.


B.

?The ratio of the total number of women in both classes to the total number of men in both classes is greater than 1.


C.

?The ratio of the total number of women in both classes to the total number of men in both classes is .


D.

?The ratio of men to women in Class A is greater than the ratio of women to men in Class B.


E.

?none of the above are true.


F.

?a and d are true.


Mathematics

Use the distributive property to multiply. Then, if possible, simplify the resulting expression.3(7 + m)

A. 21m B. 21 + m C. 21 + 7m D. 21 + 3m

Mathematics

Find the reciprocal.8

A. -8
B. - 
C.
D.

Mathematics

Solve.logx81 = 2

A. x = 
B. x = -9
C. x = 9
D. x = -2

Mathematics