Solve the problem.Ellen is knitting a scarf with one 2
-inch blue stripe, one 
green stripe, and one 8 -inch white stripe. How wide is the scarf?
A. 15
in.
B. 
in.
C. 4 in.
D. 
in.
Answer: A
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Solve the problem.Two forces, F1 and F2, of magnitude 60 and 70 pounds, respectively, act on an object. The direction of F1 is 
and the direction of F2 is 
. Find the magnitude and the direction angle of the resultant force. Round the magnitude to the nearest hundredth of a pound and the direction angle to the nearest tenth of a degree.
A. 
= 99.37; ? = 93.7°
B. 
= 92.20; ? = 89.4°
C. 
= 94.63; ? = 87.2°
D. 
= 92.20; ? = 80°
Provide an appropriate response.Use the method of Lagrange multipliers to determine the critical points of f(x, y, z) = x2 + 4y - z2 subject to the constraint x + 2y - 4z = 3.
Fill in the blank(s) with the appropriate word(s).
Solve the problem.A small business owner made $50,000 the first year he owned his store and made an additional 
over the previous year in each subsequent year. Find how much he made during his fourth year of business. Find his total earnings during the first four years. (Round to the nearest cent, if necessary.)
A. $137,200.00; $355,200.00 B. $3.20; $52,083.20 C. $192,080.00; $547,280.00 D. $56,243.20; $212,323.20
Find the term that should be added to the expression to form a perfect square trinomial. Write the resulting perfect square trinomial in factored form.x2 - 
x
A. 
; 
2
B. 
; 
2
C. 
; 
2
D. 0; 
2