Solve the problem.If the shaded "rectangular ring" is a gnomon to the white rectangle, then x =
A. 10.
B. 12.
C. 6.
D. 8.
E. none of these
Answer: A
You might also like to view...
Solve the problem.When going more than 38 miles per hour, the gas mileage of a certain car fits the model 
where x is the speed of the car in miles per hour and y is the miles per gallon of gasoline. Based on this model, at what speed will the car average 15 miles per gallon? (Round to nearest whole number.)
A. 149 mph B. 73 mph C. 48 mph D. 98 mph
Find the vertex of the parabola.f(x) = x2 - 20x + 108
A. (8, 0) B. (0, 10) C. (8, 10) D. (10, 8)
Solve the problem.Mary lives on a corner lot. The neighborhood children have been cutting diagonally across her lawn instead of walking around the yard. If the diagonal distance across the lawn is 
and the longer part of the sidewalk is twice the shorter length, how many feet are the children saving by cutting across the lawn? Round to the nearest foot if necessary.
A. 27 ft B. 12 ft C. 9 ft D. 7 ft
Simplify the algebraic expression.7(2x - 4) - 8(x - 2)
A. -42x - 12 B. 6x - 6 C. 6x - 44 D. 6x - 12