If a family has 7 children, in how many ways could the parents have 3 boys and 4 girls as children?
?
A. 7
B. 38
C. 3
D. 40
E. 35
Answer: E
Mathematics
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Combine like terms when possible. -2y - 6y
A. 12y B. 8y C. -8y2 D. -8y
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Determine whether the graph of the equation is a circle, parabola, ellipse, or hyperbola. Do not graph.4y2 - 16x2 = 64
A. circle B. ellipse C. hyperbola D. parabola
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Rewrite the quadratic function in standard form by completing the square.f(x) = x2 - 8x
A. f(x) = (x - 4)2 - 16 B. f(x) = (x + 8)2 - 8 C. f(x) = (x - 8)2 - 64 D. f(x) = (x + 4)2 - 4
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Answer the question.Find cos ? given that cos 2? = 
and 0 ? ? < 
.
A. 
B. 
C. 3
D. 
Mathematics