In a group of 64 children, 40 like vanilla ice cream, 30 like maple, and 15 like both. A child is selected at random. What is the probability the child likes vanilla or maple?
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find the exact value of the expression.cos 
cos 
- sin 
sin 
A. 0
B. 1
C. -1
D. 
Mathematics
Write a general formula to describe the variation.A varies inversely with x2; A = 5 when x = 5
A. A = 
B. A = 
x2
C. A = 25x2
D. A = 
Mathematics
Find the determinant.det 
A. 0 B. 1 C. -1 D. -5
Mathematics
Write the trigonometric expression as an algebraic expression containing u and v.cos(sin-1 u + cos-1 v)
A. uv - (
)(
)
B. uv + (
)(
)
C. v
+ u
D. v
- u
Mathematics