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Lorico [155]
3 years ago
13

2. What is the slope of the line 2x + y = 8?

Mathematics
2 answers:
yawa3891 [41]3 years ago
8 0

Answer:

Using the slope-intercept form, the slope is 2 .

slamgirl [31]3 years ago
7 0
Y=8-2x so the slope should be -2x
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A researcher studying stress is interested in the blood pressure measurements of chief executive officers (CEOs) of major corpor
sesenic [268]

Answer:

Null Hypothesis, H_0 : \mu = 136 mm Hg  

Alternate Hypothesis, H_A : \mu\neq 136 mm Hg

In this context type I error is rejecting that the μ is equal to 136 mm Hg when in fact μ is equal to 136 mm Hg.

Step-by-step explanation:

We are given that the mean systolic blood pressure, μ, of CEOs of major corporations is different from 136 mm Hg, which is the value reported in a possibly outdated journal article.

He measures the systolic blood pressures of a random sample of CEOs of major corporations and finds the mean of the sample to be 126 mm Hg and the standard deviation of the sample to be 18 mm Hg.

So, Null Hypothesis, H_0 : \mu = 136 mm Hg     {means that the mean systolic blood pressure, μ, of CEOs of major corporations is 136 mm Hg}

Alternate Hypothesis, H_A : \mu\neq 136 mm Hg      {means that the mean systolic blood pressure, μ, of CEOs of major corporations is 136 mm Hg}

Type I error states that the null hypothesis is rejected when in fact the null hypothesis was true. So, in this context type I error is rejecting that the μ is equal to 136 mm Hg when in fact μ is equal to 136 mm Hg.

Suppose the researcher decides not to reject the null hypothesis. It means the researcher is making a type I error.

7 0
3 years ago
2x+y=5<br> -x+2y=4 <br><br> How do you solve this
d1i1m1o1n [39]
The answer to your problem is
x=5/2
y=5

x=-4
y=2
7 0
3 years ago
21 divided by 15.015 step my step diving decimals
ser-zykov [4K]

Answer:

0.715

Step-by-step explanation:

4 0
3 years ago
Question 14 of 25
olga2289 [7]

Answer:46%

Step-by-step explanation:

Just took test

7 0
3 years ago
Read 2 more answers
A scientist estimated that a mixture would need 4 milliliters of a chemical to balance. The actual amount needed was 7 millilite
Butoxors [25]

42.86% error was in the scientist's estimation.

Step-by-step explanation:

Given data;

Approx amount = 4 ml

Exact amount needed = 7 ml

Percentage error = \frac{|Approx-Exact|}{Exact}*100

Percentage\ error=\frac{|4-7|}{7}*100\\Percentage\ error=\frac{|-3|}{7}*100\\Percentage\ error=\frac{3}{7}*100\\\\Percentage\ error=\frac{300}{7}\\Percentage\ error= 42.86\%

42.86% error was in the scientist's estimation.

Keywords: error, percentage

Learn more about percentages at:

  • brainly.com/question/4694425
  • brainly.com/question/4695279

#LearnwithBrainly

6 0
3 years ago
Read 2 more answers
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