Find the exact value of the expression.sin 260° cos 20° - cos 260° sin 20°
A. - 
B. - 
C. 
D. - 
Answer: B
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Write the power of i as i, -1, -i, or 1.i8
A. 1 B. -1 C. -i D. i
Find all intercepts for the given function. Round to the nearest tenth if necessary.f(x) = 5(x + 1) - 1
A. x-int: (1, 0); y-int: (0, 4) B. x-int: (1, 0); y-int: (0, 1) C. x-int: (-1, 0); y-int: (0, 4) D. x-int: (-1, 0); y-int: (0, 1)
Rewrite the equation in terms of base e. Express the answer in terms of a natural logarithm, and then round to three decimal places.y = 17(7.8)x
A. y = (ln 17)ex ln 7.8, y = 2.833e2.054x B. y = 17ex ln 7.8, y = 17e2.054x C. y = 17e7.8x, y = 172.7182.054x D. y = 7.8ex ln 17, y = 7.8e2.833x
For the polynomial, list each real zero and its multiplicity. Determine whether the graph crosses or touches the x-axis at each x -intercept.f(x) = 
x4(x2 - 3)(x - 3)
A. 0, multiplicity 4, crosses x-axis;
3, multiplicity 1, touches x-axis
B. 0, multiplicity 4, touches x-axis;
3, multiplicity 1, crosses x-axis;
, multiplicity 1, crosses x-axis;
-
, multiplicity 1, crosses x-axis
C. 0, multiplicity 4, touches x-axis;
3, multiplicity 1, crosses x-axis
D. 0, multiplicity 4, crosses x-axis;
3, multiplicity 1, touches x-axis;
, multiplicity 1, touches x-axis;
-
, multiplicity 1, touches x-axis