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2 years ago

Select the two binomials that are factors of this trinomial.

Mathematics

1 answer:

Free_Kalibri [48]2 years ago

3 0

Answer:

(x-5)(x+4)

Step-by-step explanation:

hope it helps

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100 POINTS!!!!!! HELP

irga5000 [103]

A - 1766! I hope this helps

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3 years ago

In order to estimate the difference between the average hourly wages of employees of two branches of a department store, the fol

Julli [10]

Answer:

$0.071,1.928$

Step-by-step explanation:

Downtown Store North Mall Store

Sample size n 25 20

Sample mean $\bar{x}$ $9 $8

Sample standard deviation s $2 $1

$n_1=25\\n_2=20$

$\bar{x_1}=9\\ \bar{x_2}=8$

$s_1=2\\s_2=1$

$x_1-x_2=9-8=1$

Standard error of difference of means = $\sqrt{\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2}}$

Standard error of difference of means = $\sqrt{\frac{2^2}{25}+\frac{1^2}{20}}$

Standard error of difference of means = $0.458$

Degree of freedom = $\frac{\sqrt{(\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2}})^2}{\frac{(\frac{s_1^2}{n_1})^2}{n_1-1}+\frac{(\frac{s_2^2}{n_2})^2}{n_2-1}}$

Degree of freedom = $\frac{\sqrt{(\frac{2^2}{25}+\frac{1^2}{20}})^2}{\frac{(\frac{2^2}{25})^2}{25-1}+\frac{(\frac{1^2}{20})^2}{20-1}}$

Degree of freedom =36

So, z value at 95% confidence interval and 36 degree of freedom = 2.0280

Confidence interval = $(x_1-x_2)-z \times SE(x_1-x_2),(x_1-x_2)+z \times SE(x_1-x_2)$

Confidence interval = $1-(2.0280)\times 0.458,1+(2.0280)\times 0.458$

Confidence interval = $0.071,1.928$

Hence Option A is true

Confidence interval is $0.071,1.928$

4 0

2 years ago

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miss Akunina [59]

M = -1/2
B = 1

Equation shown is y = mx + b

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3 years ago

I need measures for both angle 2 and 3 please help

olchik [2.2K]

Answer:

44 and 22

Step-by-step explanation:

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3 years ago

Read 2 more answers

Abigail drew 12 hearts and 28 circles. What is the ratio of circles to hearts

Ne4ueva [31]

28 : 12
or in reduced form
7 : 3

6 0

2 years ago