Evaluate the expression, if possible.
1/2
A. -7
B. - 
C. 7
D. 
Answer: D
Mathematics
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Evaluate the indicated trigonometric function of the acute angle ?.If ? is an acute angle of a right triangle and if cos ? = 
, then find the value of cot ?.
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.
x - 
x = 5
A. -150 B. 75 C. -75 D. 150
Mathematics
Decide whether the statement is an example of the commutative, associative, identity, inverse, or distributive property.(8 ? 4) ? 1 = 8 ? (4 ? 1)
A. Identity B. Commutative C. Associative D. Distributive
Mathematics
Solve the problem.A right triangle has one vertex on the graph of y = x2 at (x, y), another at the origin, and the third on the (positive) y-axis at (0, y). Express the area A of the triangle as a function of x.
What will be an ideal response?
Mathematics