Ms. barnsley separates her class into two groups. she gives each student the same 25-question math quiz group a uses a
calculator, while group b does not. the table shows the completion times, in minutes, of students in each group
quiz completion times (minutes)
group a
group b
4.
5
5.5
4.8
4.9
4.6
4.0
5.0
4.2
4.8
4.8
4.
4
4.1
4.
7
3.5
5.214.6
3.9 4.
3
4
which statement is true about the distributions of completion times?
the students in group a tended to complete the quiz in less time.
the median of group a is greater than the median of group b.
the means of both groups are about the same
the standard deviation of group b is less than the standard deviation of group

Step-by-step explanation:

The answer is b trust me

europa2433

europa2433

step-by-step explanation:

answer: b. f(x) = (x + 2)^3 (x^2 - 7x + 3)^4

step-by-step explanation:

polynomials always have as many roots as their order. this is a 4th order polynomial- hence 4 roots!

complex roots of polynomials always come in pairs. the quadratic equation has the "+/-" in that will alwaysgenerate m+ni amd m-ni, so 7-2i must be a root of this polynomial equation.

the order of the numerator and denominator are both 2. so the horizontal asymptote is y=a2/b2 =7

verticle asymptotes are the forbidden x-values. f(x) becomes undefined at x=-3 because this value will cause a zero denominator.

a graph of r(x) will have vertical asymptotes at ±1 because these values will make the denominator zero. so the domain of the function cannot include ±1.

you 're wlecome! : )

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