Solve the problem.A gnomon to an isosceles triangle with angles 72°, 72°, 36° is
A. another triangle with angles 72°, 72°, 36°.
B. an equilateral triangle.
C. a golden rectangle.
D. a triangle with angles 36°, 36°, 108°.
E. none of these
Answer: D
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Solve.x2 + x + 1 = 0
A. 
B. 
C. 
D. 
Find the area of the surface generated when the given curve is revolved about the x-axis. y = 
on 
A. ? B. 9? C. 7? D. 8?
Solve the application and answer with a complete sentence.4.7% of Mary's paycheck is deducted from her paycheck and put into a retirement account. If the amount deducted was $2905.54, what was the original amount of her paycheck?
A. The original amount of the paycheck was $29,055.40. B. The original amount of the paycheck was $61,820.00. C. The original amount of the paycheck was $58,914.46. D. The original amount of the paycheck was $64,725.54.
Determine the order of the matrix.[6]
A. 0 × 0 B. 0 C. 1 D. 1 × 1