Solve the problem.If tan ? = 3.8, find the value of tan ? + tan (? + ?) + tan (? + 2?).
A. 13.4
B. 11.4 + 3?
C. 11.4
D. undefined
Answer: C
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Use the figure below to answer the following question(s).
The cheapest-link tour starting with vertex A is uniquely A, B, C, D, A
A. if 2 < x < 5. B. if x < 2. C. if 1 ? x ? 8. D. if 5 < x < 8. E. regardless of the value of x.
Solve using Cramer's Rule.Linear systems occur in the design of roof trusses for new homes and buildings. The simplest type of roof truss is a triangle. The truss shown in the figure is used to frame roofs of small buildings. If a 109-pound force is applied at the peak of the truss, then the forces or weights W1 and W2 exerted parallel to each rafter of the truss are determined by the following linear system of equations. Solve the system to find W1 and W2. src="https://sciemce.com/media/4/ppg__tttt0508191537__f1q46g3.jpg" style="vertical-align: -4.0px;" />W1 - 
W1 + 
W2 = 218 
W2 = 0
A. W1 = 97.73 lb; W2= 79.79 lb
B. W1 = 39.9 lb; W2= 48.86 lb
C. W1 = 79.79 lb; W2= 97.73 lb
D. W1 = 109 lb; W2= 133.5 lb
Decide if a triangle exists that satisfies the given conditions.a = 15, b = 12, c = 10
A. No B. Yes
Write an equation in slope-intercept form for the line shown.
A. y = -2x
B. y = 
x
C. y = 2x
D. y = -
x