PLZ HELP WITH ALGEBRA HMW Solve for x. z = 6 π x y

NISA [10]

1. Name?
2. The solution is 4600

3 0

3 years ago

An office manager recorded the number of reams of paper that were used for a printer each month for six months: 15, 10, 25, 19,

Virty [35]

A)
10, 15, 17, 19, 25 
Min: 10 
Median: 17 
Max: 25 

lower Quartile: (10+15)/2 = 12.5 
upper Quartile: (19+25)/2 = 22 

b) 
http://imageshack.us/photo/my-images/22/...

c) 
Mean: (10 + 15 + 17 + 19 + 25)/5 = 17.2 

[ ( 17.2 - 10 )^2 + ( 17.2 - 15 )^2 + ( 17.2 - 17 )^2 + ( 17.2 - 19 )^2 + ( 17.2 - 25 )^2 ] / 5 = 24.16 

√( 24.16 ) ≈ 4.92 
-------------- 
4) 

[ 4. . .-2 . . . -12 ------> 3R1 - 4R2 ----> R2 
3. . .-1 . . . -3 ] 

[ 4. . .-2 . . . -12 ------> R1 - R2 ----> R1 
0. . .-2 . . . -24 ] 

[ 4. . ..0 . . . .12 ------> R1/4 ----> R1 
0. . .-2 . . . -24 ] R2/-2 ----> R2 

[ 1. . ..0 . . . .3 
0. . .1 . . . 12 ] 

x = 3 & y = 12

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6 0

3 years ago

The formula for the area of a rhombus with diagonals of lengths c and

Irina18 [472]

Answer: part a.) c =2A/d

Part b.) d = 7

Part C The diagonals are each 8

Step-by-step explanation: part b:

35= 10d/2 70= 10d. 7 =d

Part c 32= 2c²

64 = c²

√64 = √c²

c = 8

7 0

2 years ago

Read 2 more answers

Brainliest pls help (dont have to show work)

Kitty [74]

Answer:

-2.35

Step-by-step explanation:

5 0

2 years ago

A group of researchers are interested in the possible effects of distracting stimuli during eating, such as an increase or decre

Dmitry [639]

Using the t-distribution, it is found that since the p-value of the test is of 0.0302, which is less than the standard significance level of 0.05, the data provides convincing evidence that the average food intake is different for the patients in the treatment group.

At the null hypothesis, it is tested if the consumption is not different, that is, if the subtraction of the means is 0, hence:

$H_0: \mu_1 - \mu_2 = 0$

At the alternative hypothesis, it is tested if the consumption is different, that is, if the subtraction of the means is not 0, hence:

$H_1: \mu_1 - \mu_2 \neq 0$

Two groups of 22 patients, hence, the standard errors are:

$s_1 = \frac{45.1}{\sqrt{22}} = 9.6154$

$s_2 = \frac{26.4}{\sqrt{22}} = 5.6285$

The distribution of the differences is has:

$\overline{x} = \mu_1 - \mu_2 = 52.1 - 27.1 = 25$

$s = \sqrt{s_1^2 + s_2^2} = \sqrt{9.6154^2 + 5.6285^2} = 11.14$

The test statistic is given by:

$t = \frac{\overline{x} - \mu}{s}$

In which $\mu = 0$ is the value tested at the null hypothesis.

Hence:

$t = \frac{25 - 0}{11.14}$

$t = 2.2438$

The p-value of the test is found using a two-tailed test, as we are testing if the mean is different of a value, with t = 2.2438 and 22 + 22 - 2 = 42 df.

Using a t-distribution calculator, this p-value is of 0.0302.

Since the p-value of the test is of 0.0302, which is less than the standard significance level of 0.05, the data provides convincing evidence that the average food intake is different for the patients in the treatment group.

A similar problem is given at brainly.com/question/25600813

4 0

2 years ago