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2 years ago

When you round a number, what should you do with the digits to the right of the place to which you are rounding?

Mathematics

2 answers:

Mazyrski [523]2 years ago

7 0

What are you rounding to? Drop the digits.

kaheart [24]2 years ago

4 0

Depends on what place you are rounding to. you would usually drop them

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As part of a study of the treatment of anemia in cattle, researchers measured the concentration of selenium in the blood of 36 c

iris [78.8K]

Answer:

Step-by-step explanation:

Given that a part of a study of the treatment of anemia in cattle, researchers measured the concentration of selenium in the blood of 36 cows who had been given a dietary supplement of selenium (2 mg/day) for one year.

If x is the selenium concentration then

X has mean= 6.21 mg/dl

and std dev = 1.84

Sample size n = 36

std error of sample = $\frac{1.84}{\sqrt{36} } \\=0.307$

Margin of error for 95%

$1.96(0.307)=0.602$

Confidence interval = $(6.21-0.605, 6.21+0.605)\\= (5.605, 6.815)$

4 0

3 years ago

Consider this sequence

pochemuha

Hello,

$u_{1} =1*(8-7)=1*(2*4-(6+1))\\
 u_{2} =2*(10-7)=2*(2*5-(6+2))=2*(2*(4+1)-(6+2))\\
 u_{3} =3*(12-9)=3*(2*6-(6+3))=3*(2*(4+2)-(6+3))\\
 u_{4} =4*(14-10)=4*(2*7-(6+4))=4*(2*(4+3)-(6+4))\\

$

$u_{10}=10*(2*(4+10)-(6+10))\\
=10*(28-16)
$

$...\\\\
u_{n} =n*(2*(n+n-1)-(6+n))\\
=n*(4n-2-6-n)=n(3n-8)\\

$

5 0

2 years ago

A prize wheel at a county fair is divided into 9 equal sections. Each section on the wheel is marked with a letter. Each letter

Alik [6]

Your answer would be 9/27 but can be converted to 1/3. Hope this helps

8 0

2 years ago

Hope researches the impact of one variable on another. She graphs the data from her research and sees that the data forms a shap

zaharov [31]

Answer:

She can determine that while there is an association between the variables, there is no correlation, and she cannot determine causation.

Step-by-step explanation:

Since there is an arch shape to her graph, we know that as one variable changes, the other changes in the same manner. This means there is an association between the variables.

However, since the graph is not linear, there is no correlation between the variables. Since there is no correlation, we cannot determine causation.

Mark me as brainiest

6 0

2 years ago

Read 2 more answers

What is 37/12 as a mixed number?

mixer [17]

1 and one - twelfth
because 12gies 3 times in 37

4 0

2 years ago