Prove that the equation is an identity.(cos ? - sin ?)2 + (cos ? + sin ?)2 = 2
What will be an ideal response?
(cos ? - sin ?)2 + (cos ? + sin ?)2 = cos2 ? - 2 cos ? sin ? + sin2 ? + cos2 ? + 2 cos ? sin ? + sin2 ? = 2.
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Write a word name for the number in the sentence.When Sam joined his software company, their stock sold for $37.37 per share.
A. Thirty-seven and thirty-seven thousandths B. Thirty-seven and thirty-seven tenths C. Thirty-seven and thirty-seven hundredths D. Thirty-seven and thirty-seven millionths
The graph of a polynomial function 
is given.
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(a) From the graph, find the x-intercept(s).
?
x = __________
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(b) From the graph, find the y-intercept(s).
?
y = __________
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(c) From the graph, find the coordinates of all local maxima.
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(d) From the graph, find the coordinates of all local minima.
What will be an ideal response?
The graph of f(x) = ax2 + bx + c is given in the figure. Solve the equation 
A. -4 B. 4 C. 0 D. No real solutions
Determine whether the number is divisible by 2, 3, 4, 5, 6, 8, 9, and/or 10.363
A. 3 B. 3, 9 C. 9 D. 2, 3, 9