Factor the expression. Express your answer so that only positive exponents occur. x-2/7 + x-4/7
A. x-4/7(x2/7 + x)
B. x-4/7(x2/7 - 1)
C. x-4/7(x2/7 + 1)
D. x-4/7(x2/7)
Answer: C
Mathematics
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Graph the function over a one-period interval.y = -2 sin 4
- 1
A. 
B. 
C. 
D. 
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Describe the shape of the given histogram.
A. Right skewed B. Uniform C. Left skewed D. Normal
Mathematics
Express the interval in set builder notation and graph the interval on a number line.[3.5, ?)
A. {
x ? 3.5}
B. {
x < 3.5}
C. {
x ? 3.5}
D. {
x > 3.5}
Mathematics
Find the center (h, k) and radius r of the circle with the given equation. 4(x - 3)2 + 4(y + 6)2 = 56
A. (h, k) = (3, -6); r = 
B. (h, k) = (-3, 6); r = 
C. (h, k) = (3, -6); r = 4
D. (h, k) = (-3, 6); r = 4
Mathematics