Step-by-step explanation:
Step 1
Subtract the mean from your score. For example, if you scored 33 and the mean is 24, you would get a difference of 9.
Step 2
Divide the difference found in Step 1 by the standard deviation of the data to find the z-score, which is the number of standard deviations away from the mean that your score is. For example, if the standard deviation was 4.5, you would have a z-score of 2.
Step 3
Convert the z-score to a percentile using a z-score chart or converter available online (see Resources section). When converting, be sure to use a one-sided test. For example, a z-score of 2 would be in the 98th percentile.
Since 800 is greater than 0.8 your statement would be 800>0.8
Hey there!
To start, since you already know your total without the tax, 60 dollars, now you have to find the sales tax.
Since the sales tax is 5% of the total, multiply 5% to 60. To do this, first convert 5% to a decimal by moving the decimal left two times. This would be 0.05. Now, multiply your 0.05 to 60:
0.05*60=3
Finally, add this sales tax to your total:
60+3=63
Therefore, your final total is 63 dollars.
:)
-b/2a is the quadratic formula
Answer:
never learned it
Step-by-step explanation: sorry but i dont get it