Factor completely.-2x2 - 13x - 20
A. prime
B. -1(2x + 5)(x + 4)
C. -1(2x + 4)(x + 5)
D. -1(2x - 5)(x - 4)
Answer: B
Mathematics
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Determine ratio of A to B. Round as indicated.A = 49? square centimeters is the area of a circle with diameter 14 centimeters. B = 196 square centimeters is the area of a square with sides of length <14 centimeters. (Do not round.)
A. 
B. 
C. 
D. 
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A pair of similar triangles is shown. Find the measure of the segment marked with the letter x.
A. x = 12 B. x = 7 C. x = 21 D. x = 28
Mathematics
Solve.
- 
= 
A. 
B. 
C. - 
D. 6
Mathematics
Use the Principle of Mathematical Induction to show that the statement is true for all natural numbers n.9 + 18 + 27 + ... + 9n = 
What will be an ideal response?
Mathematics