Multiply. Simplify the answer completely.
? 
A. 
B. 
C. 
D. 
Answer: C
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Determine the measure of an interior angle of the named regular polygon.Decagon
A. 30° B. 150° C. 144° D. 36°
Use a ruler, protractor, and compass to construct, when possible, a triangle with the stated properties. Determine whether one triangle can be constructed, two or more noncongruent triangles can be constructed, or no triangle can be constructed.A right triangle with legs (the sides including the right triangle) measuring a length of 45 cm and 4 cm.
A. Exactly one triangle can be constructed. B. No triangle can be constructed. C. Two or more noncongruent triangles can be constructed.
Find the directrices of the hyperbola.36y2 - 25x2 = 900
A. y = ± 
B. y = ± 
C. y = ± 
D. x = ± 
Solve the system by using Gaussian elimination with backward substitution or by reducing the matrix to reduced-row echelon form. 9x - 7y = -18 5x + 5y = -10
A. (-3, 1) B. (-2, 1) C. No solution D. (-2, 0)