Express 0.000 000 698 in scientific notation
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Related Questions
A population has a mean of 300 and a standard deviation of 70. Suppose a sample of size 125 is selected and is used to estimate . Use z-table. What is the probability that the sample mean will be within +/- 8 of the population mean (to 4 decimals)? (Round z value in intermediate calculations to 2 decimal places.) What is the probability that the sample mean will be within +/- 17 of the population mean (to 4 decimals)? (Round z value in intermediate calculations to 2 decimal places.)
A principal decides to survey the parents at her school to find out their opinion onstandardized testing. She calls randomly-chosen parents between 4:00 and 5:00 P.M.every day for a week and collects data on their responses. Identify the populationand the sample. Give a reason why the sample could be biased.Oa)Population: All parents who respond to the surveySample: All parents with students at the schoolPossible Bias: The parents who answered the phone may not berepresentative of the whole population because younger parents are morelikely to answer the phone than older ones.b)Population: All parents with students at the schoolSample: All parents who respond to the surveyPossible Bias: Parents who are at home between 4:00 and 5:00 P.M. may notbe representative of the whole population.Oc) Population: All parents with students at the schoolSample: All parents who respond to the surveyPossible Bias: Some parents do not like a particular teacher.d)Population: All parents who respond to the surveySample: All parents with students at the schoolPossible Bias: Some of the people contacted did not answer every question
Which is a measure of the efficiency of an investment? return rate return on investment efficiency coefficient
Simplify (3x)–1 A. 81x^4 B. 1/3x C. 1/x^6 D. 4x^6
(3, 5)
B.
(3, 6)
C.
(5, 3)
D.
(5, 4)
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salt
gasoline
aluminum
carbon dioxide
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Final answer:
Among the given substances, gasoline is a mixture because it consists of multiple hydrocarbons and does not have a fixed composition.
Explanation:
The substance that is a mixture among the given options is gasoline. A mixture is a substance that is composed of two or more different types of substances, which are not chemically combined. Unlike pure substances, mixtures do not have a fixed composition. Gasoline is considered a mixture because it is made up of numerous hydrocarbons combined together. Conversely, substances like salt (sodium chloride), aluminum, and carbon dioxide are not mixtures, but pure substances as they have fixed composition.
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Dx = j - hy
x= (j - hy) / D
n=number of rows
n,x means when you have n rows, you have x items in pyramid
n=1, 1
n=2, 3
n=3, 6
n=4, 10
n=5, 15
find the number of items when you have n number of rows
f(n)=something
SHOW ALL WORK AND LOGIC
NO GOOGLING TO FIND ANSWER OR JUST PUTTING THE ANSWER
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an=number of item at row n
an=a₁+(n-1)d
d=common difference=an-a(n-1)=a₂-a₁=2-1=1
n=number of row
In this case:
an=1+(n-1)*1=n
The sum of an arithmetic serie is:
Sn=(a₁+an)n / 2
In this case:
a₁=1 (number of itms in the first row)
an=n (we have to calculate this before)
Sn=(1+n)n /2=(n+n²)/2
Therefore:
f(n)=Sn=number of items when we have n number of rows
f(n)=(n+n²)/2
Answer: f(n)=(n+n²)/2
To chek:
f(1)=(1+1²)/2=1
f(2)=(2+2²)/2=6/2=3
f(3)=(3+3²)/2=(3+9)/2=12/2=6
....
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+5684
9999 So 5684 is the greatest number you can write.
Final answer:
The greatest number that can be added to 4315 without having to regroup is 5644. When added together, the sum doesn't result in a carryover to the next place value.
Explanation:
In Mathematics, particularly arithmetic, regrouping is the process of making groups of tens when adding or subtracting two numbers. When the question asks for the greatest number that can be added to 4315 without having to regroup, we are essentially looking for a number that when added to 4315 doesn't result in a carryover to the next place value.
Considering the number 4315, you would notice that the units digit is 5, the tens digit is 1, the hundreds digit is 3, and the thousands digit is 4. This means for each position we can add a number up to 9 without needing to regroup. Hence, the greatest number you can add to 4315 without needing to regroup would be 5644 (which gives 9 in the units place, 1+5=6 in the tens place, 3+4=7 in the hundreds place, and 4+4=8 in the thousands place).
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