The graph of a quadratic function is given. Determine the function's equation.
A. j(x) = x2 + 2
B. h(x) = x2 - 2
C. f(x) = x2 - 4x + 4
D. g(x) = x2 + 4x + 4
Answer: B
Mathematics
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Use the given triangles to evaluate the expression. Rationalize all denominators. 
tan 
- sin 
A. 
B. - 
C. 
D. - 
Mathematics
Rewrite the trigonometric expression as an algebraic expression involving the variable u. Assume that 
and that the value of the "inner" inverse trigonometric expression represents an angle ? such that 
cos (sin-1 u)
A. 
B. 
C. 
D. 
Mathematics
Find an equation of variation in which y varies directly as x and the following is true.y = 340, when x = 90
A. x = 250y
B. y = 
x
C. y = 
x
D. x = 
y
Mathematics
Write the fraction as a decimal. Round to the nearest thousandth if necessary.
A. 65.501 B. 655.001 C. 655 D. 65.5
Mathematics