Answer:
The length of the rectangular playing field is 84 yards and the width is 44 yards
Step-by-step explanation:
Let
x ------> the length of the rectangular playing field
y -----> the width of the rectangular playing field
we know that
The perimeter of the rectangular playing field is equal to
so
------> equation A
we have that
-----> equation B
Solve the system by substitution
Substitute equation B in equation A and solve for y
Find the value of x
therefore
The length of the rectangular playing field is 84 yards and the width is 44 yards
Answer: 0.11 (bar notation)
Step-by-step explanation:
Hi there!
Simplify th' Eqⁿ :-
5 (x - 10) = 30 - 15x
⇒ 5x - 50 = 30 - 15x
⇒ 5x + 15x = 30 + 50
⇒ 20x = 80
⇒ x =
= 4
Hence,
The required answer is. x = 4
~ Hope it helps!
Answer:
X = 101.48
Step-by-step explanation:
Normal Probability Distribution
Problems of normal distributions can be solved using the z-score formula.
In a set with mean 
and standard deviation 
, the z-score 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 p-value, we get the probability that the value of the measure is greater than X.
Average of 62 seconds with a standard deviation of 24.5 seconds.
This means that 
If the manager wants to advertize that 95% of the time, they serve customers within X seconds, what is the value of X?
This is the 95th percentile of times, which is X when Z has a p-value of 0.95, so X when Z = 1.645.
