This question is from multivariable calculus assignment.

are the following statements true or false?

1. the parametric curve with equations x=(3t+4)^2, y=5(3t+4)^(2)-9, for 0< =t< =3 is a line segment.
2. a parameterization of the graph of y=ln(x) for x> 0 is given by x=e^t, y=t for -inf
i know the answers are true for both questions but how do you find out?

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The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.

(01.04 lc)multiply 1 over 6 multiplied by negative 1 over 2. negative 1 over 3 negative 1 over 12 1 over 12 1 over 3

Here are the 30 best lifetime baseball batting averages of all time, arranged in order from lowest to highest: 0.319, 0.329, 0.330, 0.331, 0.331, 0.333, 0.333, 0.333, 0.334, 0.334, 0.334, 0.336, 0.337, 0.338, 0.338, 0.338, 0.340, 0.340, 0.341, 0.341, 0.342, 0.342, 0.342, 0.344, 0.344, 0.345, 0.346, 0.349, 0.358, 0.366 if you were to build a histogram of these data, which of the following would be the best choice of classes?