Find the area.
A. 225 cm2
B. 425 cm2
C. 289 cm2
D. 51 cm2
Answer: C
Mathematics
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Solve the system of equations using substitution.
A. x = 2, y = 30 or (2, 30) B. x = 7, y = 25; x = -4, y = 36 or (7, 25), (-4, 36) C. x = 7, y = 39; x = -4, y = 36 or (7, 39), (-4, 36) D. x = -7, y = 39; x = 4, y = 28 or (-7, 39), (4, 28)
Mathematics
Graph the system of inequalities.y > -3y ? -x2
A. 
B. 
C. 
D. 
Mathematics
A ladder 17 feet long leans against the side of a house. Find the height from the top of the ladder to the ground if the angle of elevation of the ladder is 80º. Approximate the answer to one decimal place. ?
A. 19.7 ft B. 20.7 ft C. 18.7 ft D. 16.7 ft E. 17.7 ft
Mathematics
Factor.x4 - 256
A. (x2 - 16)(x2 - 16) B. prime C. (x2 + 16)(x2 + 16) D. (x2 + 16)(x + 4)(x - 4)
Mathematics