Homework Help for Precalculus

In the figure, a person standing at point A notices that the angle of elevation to the top of the antenna is 4730'. A second person standing 38.0 feet farther from the antenna than the person at A finds the angle of elevation to the top of the antenna to be 4410'. How far is the person at A from the base of the antenna? (Round your answer to the nearest whole number.) 

______ ft

Draw an angle in standard position whose terminal side contains the point 

Find the distance from the origin to this point.

Rectangle ACEF shown in the figure is a golden rectangle. It is constructed from square ACDB by holding line segment OB fixed at point O an then letting point B drop down until OB aligns with CD. The ratio of the length to the width in the golden rectangle is called the golden ratio. Find the lengths below to arrive at the golden ratio. (Let a = 1.)

(d) Find the ratio .

= ______

If the length of each edge of the cube shown in the figure is  inches, find the following. 

This problem refers to the two-person tent shown in the figure below. Assume the tent has a floor and is closed at both ends. Give your answers in exact form and also approximate to the nearest tenth of a unit.

If the height h at the center of the tent is to be 3 feet and 162 square feet of material are available to make the tent, how long should the tent be?

exact form                        _________  

approximate form              _________ 

This problem refers to the two-person tent shown in the figure below. Assume the tent has a floor and is closed at both ends. Give your answers in exact form and also approximate to the nearest tenth of a unit.

If the height h at the center of the tent is to be 4 feet and the length l of the tent is to be 6 feet, how many square feet of material will be needed to make the tent?

exact form                   _________  

approximate form         _________ 

This problem refers to the two-person tent shown in the figure below. Assume the tent has a floor and is closed at both ends. Give your answers in exact form and also approximate to the nearest tenth of a unit.

If the height h at the center of the tent is to be 4 feet and the length l of the tent is to be 6 feet, how many square feet of material will be needed to make the tent?

exact form                      __________  

approximate form            __________  

Let f be a continuous function such that 

What is the vector that results from transforming a⃗  by the transformation matrix?

a⃗ =[3−1] and B=[73−6−4]

Enter your answer by filling in the boxes.

Find the parametric equation’s

Find parametric equations

Find the parametric equations

Find the parametric equation