Find the shaded area.
A. 123 cm2
B. 126 cm2
C. 129 cm2
D. 45 cm2
Answer: C
Mathematics
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Find the focus and directrix of the parabola.y = 3x2
A. 
, x = - 
B. 
, y = - 
C. 
, y = 
D. 
, x = - 
Mathematics
Solve and check. Identify any extraneous solutions.
+ 
= 
A. -4 B. No solution (-4 is extraneous) C. 0, 4 D. 3
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Factor by grouping.18a3 + 24a2b - 15ab2 - 20b3
A. (6a2 - 5b2)(3a + 4b) B. (18a2 - 5b2)(a + 4b) C. (6a2 - 5b)(3a + 4b) D. (6a2 + 5b2)(3a - 4b)
Mathematics
Multiply. Simplify by combining like terms.(m2 + 0.6n)(m2 - 0.6n)
A. m4 - 0.36m - 0.36n2 B. m4 - 0.36n2 C. 2m4- 1.2n2 D. m4 + 0.36n2
Mathematics