The pair of triangles is similar. Find the missing side n. Round to the nearest tenth when necessary.
A. 0.4 ft
B. 81 ft
C. 324 ft
D. 9 ft
Answer: B
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Provide the requested information about the circular function.What is the period of y = cos x?
A. 4?
B. 2?
C. ?
D. 
Graph the function defined by a radical expression. Give the domain and range.
= 
A. Domain: [8, ?);
Range: (-?, ?)
B. Domain: (-?, ?);
Range: [8, ?)
C. Domain: (-?, ?);
Range: [-8, -?)
D. Domain: [-3, 3];
Range: [0, 8]
First, use front end rounding to estimate each answer. Then find the exact answer.The fully loaded car cost $2357 more than the basic model. If the basic model cost $18,433, what did the fully loaded car cost?
A. estimate: $18,400 + $2300 = $20,700; exact: $20,790 B. estimate: $18,000 + $2000 = $20,000; exact: $20,790 C. estimate: $18,000 + $2300 = $20,300; exact: $20,790 D. estimate: $20,000 + $2000 = $22,000; exact: $20,790
Factor the expression completely, if possible.750x3 + 6y3
A. 6(5x - y)(25x2 + 5xy + y2) B. 6(5x - y)(25x2 + y2) C. 6(5x + y)(25x2 - 5xy + y2) D. (5x - 6y)(150x2 + 5y + y2)