Question 8 of 10
2 Points
In the polynomial below, what number should replace the questi...
Mathematics, 14.02.2020 00:10 ChloeN8912
Question 8 of 10
2 Points
In the polynomial below, what number should replace the question mark to
produce a difference of squares?
x2 + ?x-25
om
UP
Oo oo
0
=
Answers: 1
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Identify the expression equivalent to 4(x + x + 7) ā 2x + 8 ā 4 by substituting x = 1 and x = 2.
Answers: 2
Mathematics, 21.06.2019 22:30
Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by Ć¢ā4 to get Ć¢ā16x Ć¢ā 4y = Ć¢ā80 multiply the second equation by Ć¢ā1 to get Ć¢ā4x Ć¢ā y = Ć¢ā20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by Ć¢ā1 to get Ć¢ā2x Ć¢ā 4y = Ć¢ā14
Answers: 1
Mathematics, 21.06.2019 23:30
Pleting the square f the given find the x-intercepts of the parabola with vertex (-5,13) and y-intercept (0, 12). write your answer in this form: (14,.99). if necessary, round to the nearest hundredth. *- h enter the correct answer, de verter, and ametry 00000 done doo
Answers: 2
Mathematics, 22.06.2019 01:20
1. why is a frequency distribution useful? it allows researchers to see the "shape" of the data. it tells researchers how often the mean occurs in a set of data. it can visually identify the mean. it ignores outliers. 2. the is defined by its mean and standard deviation alone. normal distribution frequency distribution median distribution marginal distribution 3. approximately % of the data in a given sample falls within three standard deviations of the mean if it is normally distributed. 95 68 34 99 4. a data set is said to be if the mean of the data is greater than the median of the data. normally distributed frequency distributed right-skewed left-skewed
Answers: 2
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