PLEASE i really need help I am terrible at this I WILL GIVE TEN EXTRA POINTS AND BRAINLIEST
1 answer:
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Answer:
- 3 4/5
- 3 1/5
- 16 1/5
- 31 1/4
- 4/5
Step-by-step explanation:
An improper fraction is converted to a mixed number by doing integer division and expressing the remainder as a fraction with the divisor as the denominator.
... 19/5 = (3·5 +4)/5 = 3 4/5
The expressions involving exponents are evaluated to mixed numbers according to the Order of Operations. The exponent is evaluated before division, so ...
1. 4^2/5 = (4^2)/5 = 16/5 = 3 1/5
2. 3^4/5 = (3^4)/5 = 81/5 = 16 1/5
3. 5^3/4 = (5^3)/4 = 125/4 = 31 1/4
4. 4^1/5 = (4^1)/5 = 4/5
_____
If you intended fractional exponents, according to the Order of Operations, you need to put that fraction in parentheses. The denominator of the fraction is the root of the base number to the numerator power.
... 4^(2/5) = (4^2)^(1/5) = 16^(1/5) =
Answer:
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".
Let X the random variable that represent points in a game of bowling of a population, and for this case we know the distribution for X is given by:
Where and
We know that the value for Renee is X=175 and the z score obteined was Z=2.
Solution to the problem
And the best way to solve this problem is using the normal standard distribution and the z score given by:
We are interested on the value of and we can solv for it:
And replacing the values we have:
.........where 78 is the total girls and d is the number of girls in a group.