Use the given substitution to solve the equation.x4 - 9x2 + 8 = 0, u = x2
A. 1, 2
B. ±1, ±2
C. 8, 9
D. ±1, ±2
Answer: D
Mathematics
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Find the largest open interval where the function is changing as requested.Decreasing f(x) = ?x - 8?
A. (8, ?) B. (-?, 8) C. (-8, ?) D. (-?, -8)
Mathematics
Simplify the fraction.
A. -25h10 B. -25h9 C. -6h9 D. 6h10
Mathematics
State the quadrant in which the point lies.(-2.6, -3.9)
A. Quadrant I B. Quadrant IV C. Quadrant II D. Quadrant III
Mathematics
For the equation below, find all degree solutions in the interval 
. Give your answer in degrees. If rounding is necessary, round to the nearest tenth of a degree. Use your graphing calculator to verify each solution graphically.
?
What will be an ideal response?
Mathematics