Answer:
z = - 0.33
Step-by-step explanation:
Given that:
Mean (μ) = 73, standard deviation (σ) = 3.0
Z score is a measure in statistics to determine the number of standard deviation a value is above or below the mean of what is measured. If the value is above the mean it is positive but if it is below the mean it is negative. It is given by the equation:
To calculate z-score for Umaima's exam grade, we need to calculate the z score of 72
For x = 72, the z score is:
z = - 0.33
Answer:
Dilating something by scale factor is enlarging it by a number, making it for example, 2 or 3 times bigger than it is.
Step-by-step explanation:
Answer:
The Answer Is: A
Step-by-step explanation:
If we were to add one more table we would put the hours up to 6 hours.
so to the hours baby sitting is ading by one number and the money being paid is adding by 6 A would be the answer
(sorry for the bad explanation i do know thats the answer trust me i wont let u guys fail)
Answer:
x = 2.5
Step-by-step explanation:
2+3log(4x)=5
Subtract 2 from each side
2-2+3log(4x)=5-2
3log (4x) = 3
Divide by 3
3/3 log (4x) = 3/3
log (4x) =1
Raise each side to the power of 10 (The implied base on the log is 10)
10^ log (4x) = 10 ^1
4x = 10
Divide each side by 4
4x/4 =10/4
x = 2.5
-3x^2(6x^2 + 2x - 3) = -18x^4 - 6x^3 + 9x^2