Simplify to form an equivalent expression by combining like terms. 4x + 7x2 - x + 4x2
A. 3x + 11x2
B. 14x
C. 4x + 11x2 - x
D. 14x2
Answer: A
Mathematics
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Solve the problem.A tree casts a shadow that is 60 ft long when a 5 ft tall woman casts a shadow of 9 ft. How tall is the tree?
A. 108 ft
B. 45 ft
C. 60 ft
D. 33
ft
Mathematics
Solve the problem.The ratio of the weight of an object on Earth to the weight of the same object on Pluto is 100 to 3. If a buffalo weighs 3690 pounds on Earth, find the buffalo's weight on Pluto. Round to the nearest pound.
A. 1,107,000 lb B. 11,070 lb C. 8 lb D. 111 lb
Mathematics
Solve by the square-root property.(x + 9)2 - 5 = 0
A. -3 ± 
B. 9 ± 
C. -9 ± 
D. -4, 14
Mathematics
Determine if the statement is true or false.-8.4 ? -8.40
A. True B. False
Mathematics