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Mathematics

1 answer:

sertanlavr [38]1 year ago

8 0

The data used consists Standing/Walking time (minutes per day) spent by two types of people (Lean and Obese).

<h3>How to illustrate the data?</h3>

The claim is that lean people spend more time walking and standing than obese people. We will be using right-tailed test.

The steps include:

Collect a sample of both groups
Calculate the mean and standard deviation of the two groups
State the null and alternate hypothesis and alpha.
Calculate Test Statistic
Make a conclusion based on our test.

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What does y equal??????

tangare [24]

Answer:

118 degrees

Step-by-step explanation:

I think you it's the same, because it a just rotation of the shape.

5 0

2 years ago

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One of the roots of the equation 3x^2+7x−q=0 is −5. Find the other root and q.

statuscvo [17]

Answer: The answer is $\textup{The other root is }\dfrac{8}{3}~\textup{and}q=40.Step-by-step explanation: The given quadratic equation is[tex]3x^2+7x-q=0\\\\\Rightarrow x^2-\dfrac{7}{3}x-\dfrac{q}{3}=0.$

Also given that -5 is one of the roots, we are to find the other root and the value of 'q'.

Let the other root of the equation be 'p'. So, we have

$p-5=-\dfrac{7}{3}\\\\\\\Rightarrow p=5-\dfrac{7}{3}\\\\\\\Rightarrow p=\dfrac{8}{3},$

and

$p\times(-5)=-\dfrac{q}{3}\\\\\\\Rightarrow \dfrac{8}{3}\times 5=\dfrac{q}{3}\\\\\\\Rightarrow q=40.$

Thus, the other root is $\dfrac{8}{3}$ and the value of 'q' is 40.

3 0

3 years ago

Write 0.8 as a fraction.

Scrat [10]

0.8=0.8/1=8/10=4/5
not one of them
but,

2/9=0.2222222222
4/9=0.444444444444
7/9=0.7777777777
8/9=0.88888888888

I think you meant 0.8 repeating so

answer is D

5 0

2 years ago

Please help with 7-9 they are related to the same circle

Andrej [43]

40º

7) In this problem, we can see that both tangent lines to that circle come from the same point O.

So, we can write out the following considering that there is one secant line DO and one tangent line to the circle AO