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Marysya12 [62]
3 years ago
14

PLEASE HELP I BEG YOU I REALLY NEED HELP FEW QUESTIONS :(

Mathematics
1 answer:
pantera1 [17]3 years ago
6 0
Number 2 for question 1 and number 4 for question 2
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20. Write an equation in slope-intercept form for the line that has a slope
lukranit [14]

Answer:

y = 2/3x -5

Step-by-step explanation:

3 0
3 years ago
HELP ASAP ILL GIVE A THANKS AND BRAINLIEST
larisa [96]

Answer:

-3 < x ≤ -1

Step-by-step explanation:

we know that

The solution of the graph is equal to the interval  

All real numbers greater than -3 and less than or equal to -1

so the combined inequality is equal to -3 < x ≤ -1!!!!

7 0
3 years ago
A manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 434 gram setting. It is
yan [13]

Answer:

No, there is not sufficient evidence to support the claim that the bags are underfilled

Step-by-step explanation:

A manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 434 gram setting.

This means that the null hypothesis is:

H_{0}: \mu = 434

It is believed that the machine is underfilling the bags.

This means that the alternate hypothesis is:

H_{a}: \mu < 434

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

434 is tested at the null hypothesis:

This means that \mu = 434

A 9 bag sample had a mean of 431 grams with a variance of 144.

This means that X = 431, n = 9, \sigma = \sqrt{144} = 12

Value of the test-statistic:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{431 - 434}{\frac{12}{\sqrt{9}}}

z = -0.75

P-value of the test:

The pvalue of the test is the pvalue of z = -0.75, which is 0.2266

0.2266 > 0.01, which means that there is not sufficient evidence to support the claim that the bags are underfilled.

7 0
3 years ago
I neeeddd helppppppppp
Marina CMI [18]

Answer:

4.

Step-by-step explanation:

A and D are opposite.

A is in the negative side and d is in the positive side.

6 0
3 years ago
X+4=2x<br><br> How do you solve it.
earnstyle [38]
Subtract the x on the left from the 2x on the right side
7 0
3 years ago
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