Clear fractions then solve by substitution.
- 
= - 
= 
A. 
B. 
C. 
D. 
Answer: B
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Find a polar equation in the form r cos(? - ?0) = r0 for the given line.
x - 
y = 10
A. r cos 
= 10
B. r cos 
= 5
C. r cos 
= 10
D. r cos 
= 5
Provide an appropriate response.Determine the point on the plane 
that is closest to the point 
A. (-2, -1, -3) B. (2, 1, -3) C. (2, -1, 3) D. (-2, 1, -3)
Solve the problem.A new homeowner has a triangular-shaped back yard. Two of the three sides measure 65 ft and 80 ft and form an included angle of 125°. The owner wants to approximate the area of the yard, so that he can determine the amount of fertilizer and grass seed to be purchased. Find the area of the yard rounded to the nearest square foot.
A. 2130 sq. ft B. 4260 sq. ft C. 5200 sq. ft D. 2129 sq. ft
Factor.49 - 81x2
A. (7 + 9x)2 B. (7 - 9x)2 C. 49 - 81x2 D. (7 + 9x)(7 - 9x)