490/7 math problems division = 70.
70 to 2 decimal places= 70
490/7 divided by 2 » (490/7) ÷ 2 » 70 ÷ 2 = 35
Answer:
The sum is
, simplified is
.
Step-by-step explanation:
Add the numerators together.
<u>(4+3)</u> = <u>7</u>
5 5
Since the denominators are the same, there is no change there.
To simplify, you take away 5 from the sumerator(which becomes a whole number) and you're left with 2/5.
The product of two rational numbers is always rational.
Answer: 1/2
Step-by-step explanation: 3/4x2/3= 6/12=3/6=1/2. Hope this helps! Have a wonderful day/night! PLz mark me as brainliest!
Answer:
10.03% probability of getting a cup weighing more than 8.64oz
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean
and standard deviation
, the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this question, we have that:
![\mu = 8, \sigma = 0.5](https://tex.z-dn.net/?f=%5Cmu%20%3D%208%2C%20%5Csigma%20%3D%200.5)
What is the probability of getting a cup weighing more than 8.64oz
This is the 1 subtracted by the pvalue of Z when X = 8.64. So
![Z = 1.28](https://tex.z-dn.net/?f=Z%20%3D%201.28)
has a pvalue of 0.8997
1 - 0.8997 = 0.1003
10.03% probability of getting a cup weighing more than 8.64oz