152,909 rounded to the nearest hundred thousands is 200,000.
Rules of rounding numbers
1) if the number being rounded off is followed by 0, 1, 2, 3, and 4, round the number down.
2) if the number being rounded off is followed by 5, 6, 7, 8, and 9, round the number down.
1 is the number on the hundred thousands place. It is followed by 5. We round 1 up to 2. Thus 2 is now in the hundred thousands place.
Answer:
2, 6
Step-by-step explanation:
x always go first
Answer:
plugging in the fractions into a calculator would make this super easy
Step-by-step explanation:
5/6 = six divided by five, right? okay so just that down and solve it
Fractions are just a number divided by another number to get a percentage
Think about 1/2, thats 50 percent right? Its half of something
So yeah, you just gotta divide both sides and see which number is bigger, for example
5/6= 0.833
and
3/8= 0.375
So which number is bigger? 0.83 is bigger of course sooooo
5/6 > 3/8
Answer:
AB = 14
Step-by-step explanation:
We can add the segments together to find the total
AB + BC = AC
This will allow us to find x
4x+2 + 3x-1 = 22
Combine like terms
7x +1 = 22
Subtract 1 from each side
7x+1-1 = 22-1
7x = 21
Divide by 7
7x/7 = 21/7
x = 3
Now we can find the length of AB
AB = 4x+2 = 4(3)+2 = 12+2 = 14
Answer:
And using a calculator, excel or the normal standard table we have that:
Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Solution to the problem
Let X the random variable that represent the weights of a population, and for this case we know the distribution for X is given by:
Where and
They select a sample size of n=9 people.The distribution for the sample mean is given by:
And we want to find this probability:
In order to the helicopter can safely lift off. We can use the z score formula given by:
And using a calculator, excel or the normal standard table we have that: