Factor, if possible.9x2 - 24xy + 16y2
A. (3x - 4y)2
B. (3x - 4y)(3x + 4y)
C. (9x + 1)(x + 16)
D. (3x + 4y)2
Answer: A
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Differentiate.
Multiply.-0.17(0.6n2 - 32n - 8.8)
A. -0.102n2 - 32n - 8.8 B. -0.102n2 - 5.44n - 1.496 C. -0.102n2 + 5.44n - 1.496 D. -0.102n2 + 5.44n + 1.496
Solve the problem.For the following table of data, a.Draw a scatterplot.b.Calculate the correlation coefficient.c.Calculate the least squares line and graph it on the scatterplot.d.Predict the y-value when x is 19.
?
A. a.
b. 0.965
c. Y = 0.45x - 5.53
d. 3.02
B. a.
b. -0.965
c. Y = -0.45x + 5.53
d. -3.02
C. a.
b. -0.965
c. Y = -0.45x - 5.53
d. -14.08
D. a.
b. 0.965
c. Y = -0.45x + 5.53
d. -3.02
An everyday activity is described. Keeping in mind that an inverse operation "undoes" what an operation does, describe each inverse activity.waking up
A. falling asleep B. closing the eyes C. getting up D. going to bed