Add or subtract as indicated.(5x2 + 2xy + y2) + (5x2 + 3xy - y2) + (x2 + xy - y2)
A. 11x2 + 6xy + y2
B. 11x2 + 6xy - y2
C. 10x2 + 5xy - y2
D. 9x2 + 4xy - y2
Answer: B
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First, rewrite each equation in exponential form. Then, use a table of coordinates and the exponential form to graph the logarithmic function. Begin by selecting -2, -1, 0, 1 and 2 for y. Finally, based on your graph, describe the shape of a scatter plot that can be modeled by f(x) = log b x, 0 < b < 1.y = log1/9 x
A. 
increasing
B. 
increasing,
although rate of increase is slowing down
C. 
decreasing,
although rate of decrease is slowing down
D. 
decreasing,
although rate of decrease is slowing down
Write the decimal in numbers.Three thousand and eighty five ten-thousandths
A. 3000.085 B. 3085.0000 C. 30,085 D. 3000.0085
Several triangles are shown below with congruent sides, congruent angles and right angles shown.
(a) Which ones are scalene triangles?
(b) Which ones are isosceles triangles?
(c) Which ones are right triangles?
(d) Which ones are equilateral triangles?
(e) Which ones are obtuse triangles?
Determine two pairs of polar coordinates for the point with 0° ? ? < 360°.(0, 
)
A. (
, 90°), (- 
, 270°)
B. (7, 0°), (-7, 180°)
C. (7, 90°), (-7, 270°)
D. (
, 270°), (- 
, 90°)