A triangular shade sail has sides of length 1 2 ′ 3 ″ and 1 5 ′ 6 ″ , and the angle between them is 73 ° 1 8 ′ . a. If the cost of the sail material is $ 8.75 / ft 2 , how much would this sail cost? Round to the nearest dollar. b. If the cost of wrapping the edges of the sail with a decorative border in a contrasting color is $ 125 / yd , what is the added cost to the sail? Round to the nearest dollar.
A triangular shade sail has sides of length 1 2 ′ 3 ″ and 1 5 ′ 6 ″ , and the angle between them is 73 ° 1 8 ′ . a. If the cost of the sail material is $ 8.75 / ft 2 , how much would this sail cost? Round to the nearest dollar. b. If the cost of wrapping the edges of the sail with a decorative border in a contrasting color is $ 125 / yd , what is the added cost to the sail? Round to the nearest dollar.
A triangular shade sail has sides of length
1
2
′
3
″
and
1
5
′
6
″
, and the angle between them is
73
°
1
8
′
.
a. If the cost of the sail material is
$
8.75
/
ft
2
, how much would this sail cost? Round to the nearest dollar.
b. If the cost of wrapping the edges of the sail with a decorative border in a contrasting color is
$
125
/
yd
, what is the added cost to the sail? Round to the nearest dollar.
Consider the following system of equations, Ax=b :
x+2y+3z - w = 2
2x4z2w = 3
-x+6y+17z7w = 0
-9x-2y+13z7w = -14
a. Find the solution to the system. Write it as a parametric equation. You can use a
computer to do the row reduction.
b. What is a geometric description of the solution? Explain how you know.
c. Write the solution in vector form?
d. What is the solution to the homogeneous system, Ax=0?
2. Find a matrix A with the following qualities
a. A is 3 x 3.
b. The matrix A is not lower triangular and is not upper triangular.
c. At least one value in each row is not a 1, 2,-1, -2, or 0
d. A is invertible.
Find the exact area inside r=2sin(2\theta ) and outside r=\sqrt(3)
College Algebra with Modeling & Visualization (5th Edition)
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