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BaLLatris [955]
3 years ago
5

What is the value of the expression 24 – (7 + 5) ÷ 6 + 8?

Mathematics
2 answers:
Ierofanga [76]3 years ago
4 0

Answer:

30

Step-by-step explanation:

following the bodmas rule

we will get the answer 30

ankoles [38]3 years ago
4 0

Answer:

The value of the expression is 30.

Step-by-step explanation:

Using PEMDAS you solve what is in the parenthesis first to get 24 - 12 / 6 + 8. You then solve the division to get 24 - 2 + 8. You then solve addition and subtraction from left to right to get 22 + 8. leaving you with a final answer of 30.

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Natalka [10]

Using the t-distribution to build the 99% confidence interval, it is found that:

  • The margin of error is of 3.64.
  • The 99% confidence interval for the population mean is (19.36, 26.64).

<h3>What is a t-distribution confidence interval?</h3>

The confidence interval is:

\overline{x} \pm t\frac{s}{\sqrt{n}}

In which:

  • \overline{x} is the sample mean.
  • t is the critical value.
  • n is the sample size.
  • s is the standard deviation for the sample.

The critical value, using a t-distribution calculator, for a two-tailed 95% confidence interval, with 21 - 1 = 20 df, is t = 2.086.

The other parameters are given as follows:

\overline{x} = 23, s = 8, n = 21

The margin of error is given by:

M = t\frac{s}{\sqrt{n}} = 2.086\frac{8}{\sqrt{21}} = 3.64

Hence the bounds of the interval are:

\overline{x} - M = 23 - 3.64 = 19.36

\overline{x} + M = 23 + 3.64 = 26.64

The 99% confidence interval for the population mean is (19.36, 26.64).

More can be learned about the t-distribution at brainly.com/question/16162795

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7 0
1 year ago
What is the fraction 70/75 equivalent to?
ki77a [65]

Answer:14/15

Step-by-step explanation:

7 0
3 years ago
Bertie Bee's Carpet Cleaners charge $1.22 per square foot to clean carpets. Millie Mott's Carpet Cleaners charge $9.50 per squar
Crank

Answer:

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3 years ago
How you will find out the value of 'n ' ?
saw5 [17]

Answer:

I don't know

Step-by-step explanation:

How you will find out the value of 'n ' ?

[ n! × 2^( n-4 ) / { 4! × ( n-4 )! } ] = [ n! × 2^( n-5 ) / { 5! × ( n-5 )! } ]

8 0
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Salma is in charge of decorating the school gym for a party. She has budgeted some money for decorations. Balloons (x) cost $2.5
Artyom0805 [142]

Answer:

your answer would be A.

Step-by-step explanation:

Already you know that answers b and d are not an option because it is saying she can use OVER 45 dollars. So she has to use EQUAL or less then 45 dollars. So the answer has to be A or C. In answer C it is saying she can spend MORE then 2.50 for a bunch where she cant. She has to spend exactly or less then that amount. So your answer is A.

5 0
3 years ago
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