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2 years ago

Graph the line y=4/3 x+1 . Use the line tool and select two points on the line.

Mathematics

1 answer:

Tema [17]2 years ago

4 0

rise/run y=1

raise the point up 1 and place a point

then from that point count up four and across 3 (right) and place another point there

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Solve the inequality for x.

Taya2010 [7]

Answer:

＋10 on both sides so

X+10-(10)>14-(10)

x>4

3 0

2 years ago

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Let us suppose we have data on the absorbency of paper towels that were produced by two different manufacturing processes. From

maksim [4K]

Answer:

The 95% CI for the difference of means is:

$-155.45 \leq \mu_1-\mu_2 \leq -44.55$

Step-by-step explanation:

<em>The question is incomplete:</em>

<em>"Find a 95% confidence interval on the difference of the towels mean absorbency produced by the two processes. Assumed that the standard deviations are estimated from the data. Round to two decimals places."</em>

Process 1:

- Sample size: 10

- Mean: 200

- S.D.: 15

Process 2:

- Sample size: 4

- Mean: 300

- S.D.: 50

The difference of the sample means is:

$M_d=M_1-M_2=200-300=-100$

The standard deviation can be estimated as:

$\sigma_d=\sqrt{\frac{\sigma_1^2}{n_1}+\frac{\sigma_2^2}{n_2}}\\\\\sigma_d=\sqrt{\frac{15^2}{10}+\frac{50^2}{4}} =\sqrt{22.5+625}=\sqrt{647.5}=25.45$

The degrees of freedom are:

$df=n_1+n_2-2=10+4-2=12$

The t-value for a 95% confidence interval and 12 degrees of freedom is t=±2.179.

Then, the confidence interval can be written as:

$M_d-t\cdot \sigma_d\leq \mu_1-\mu_2 \leq M_d+t\cdot \sigma_d\\\\-100-2.179*25.45\leq \mu_1-\mu_2 \leq -100+2.179*25.45\\\\-100-55.45 \leq \mu_1-\mu_2 \leq -100+55.45\\\\ -155.45 \leq \mu_1-\mu_2 \leq -44.55$

8 0

3 years ago

There are 850 employees at a software company. The company’s CEO was interested in finding out if his employees prefer the new c

Fiesta28 [93]

Answer:

Hence the best estimate is population with correct option is 74% and

the value for x=148

Step-by-step explanation:

Given:

A sample of 200

Of which 148 prefer brand new coffee

To Find:

Which statement is true?

Solution:

n=200

x=148

remaining 52 prefer old ones .

So estimate population proportion,

p=x/n

p=148/200

p=0.74

p=74 %

Now, when x=52

p=x/n,

p=52/200

p=0.26

p=26%

There is no option for 52 and 24 %

Hence x=148 and p=74%.

8 0

2 years ago

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Ms.Ambrose paid $10 for 1.25 pounds of almonds. How much did the almost cost per pound

love history [14]

Answer:

Step-by-step explanation:

10 divided by 1.25=8

7 0

2 years ago

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Divide. write each answer in simplest form.

Aleksandr [31]

Answer:

just do cross multiplication

Step-by-step explanation:

then ans will come

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2 years ago

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