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iragen [17]
3 years ago
5

Explain how an estimate helps you place the decimal point when multiplying 3.9 × 5.3

Mathematics
1 answer:
4vir4ik [10]3 years ago
4 0
An estimate helps you place the decimal point when multiplying because if you find out how many decimals there are and once you are done doing you estimated multiplication you put two decimal points after that.


Hope I helped some what and didn't make you confused.

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Major league baseball salaries averaged $1.5 million with a standard deviation of $0.8 million in 1994. suppose a sample of 100
seropon [69]

Answer: The probability that the avg. salary of the 100 players exceeded $1 million is approximately 1.

Explanation:

Step 1: Estimate the standard error. Standard error can be calcualted by dividing the standard deviation by the square root of the sample size:

SE=\frac{0.8}{\sqrt{100}}=\frac{0.8}{10} = 0.08

So, Standard Error is 0.08 million or $80,000.

Step 2: Next, estimate the mean is how many standard errors below the population mean $1 million.

\frac{1 - 1.5}{0.08}

=-6.250

-6.250 means that $1 million is siz standard errors away from the mean. Since, the value is too far from the bell-shaped normal distribution curve that nearly 100% of the values are greater than it.

Therefore, we can say that because 100% values are greater than it, probability that the avg. salary of the 100 players exceeded $1 million is approximately 1.

5 0
3 years ago
Write an algebraic expression for the given quantity. Let x represent the unknown value. One-eight of the sum of a number and th
Mashcka [7]

<u>Answer: </u>

Required expression for one-eight of the sum of a number and three is \frac{x}{8} + 3

<u>Solution: </u>

Given that unknown value is represented by variable x.

Need to create algebraic expression for One-eight of the sum of a number and three.

Let’s first find one eight of the number that is 1/8th of x = \frac{x}8}

Now on adding three we get  

\frac{x}{8} + 3

Hence required expression for one-eight of the sum of a number and three is \frac{x}{8} + 3

7 0
2 years ago
Turma:
Roman55 [17]
E porque ya lo use y es facil
3 0
3 years ago
EASY MATH QUESTION
zimovet [89]

Answer:

18.75 is the new price

6 0
2 years ago
Read 2 more answers
Fracciones equivalentes a 2/8
jeyben [28]
\dfrac{2}{8} =  \dfrac{2 \div 2}{8 \div 2} =  \dfrac{1}{4}
5 0
3 years ago
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