Find the product.(2x + 5)2
A. 2x2 + 20x + 25
B. 4x2 + 20x + 25
C. 4x2 + 25
D. 2x2 + 25
Answer: B
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Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20, the 20th term of the sequence.3, 12, 21, 30, 39, . . .
A. an = 9n - 2; a20 = 178 B. an = 6n - 2; a20 = 118 C. an = 9n - 6; a20 = 174 D. an = 6n - 9; a20 = 111
Use the properties of equality to solve the equation.q + 
= - 
A. - 
B. 
C. 
D. - 
Solve the inequality graphically.3x3 > 48x
A. (-4, 4) B. (-?, -4) ? (4, ?) C. (-4, 0) ? (4, ?) D. (-?, -4) ? (0, 4)
Use Heron's formula to find the area of the triangle. Round to the nearest square unit.a = 10 inches, b = 14 inches, c = 6 inches
A. 33 square inches B. 26 square inches C. 24 square inches D. 35 square inches