Answer: About 13.79% of the plants will have a height of less than 6.0 feet.
To answer this question, we first need to know how many standard deviations it is below the mean. That is called the z-score.
To find the z-score, we determine the difference of the expected value and the mean. Then, we divide that by the standard deviation.
(6 - 8.4) / 2.2 = -1.09
A height of 6 is -1.09 standard deviations below the mean. Looking up the probability for a z-score of -1.09 gives us a value of 13.79%.
Answer: the monthly rate for the cell phone plan is $45
Step-by-step explanation:
Let m represent the monthly rate that the cellphone company charges.
A cell phone company charges $60 for a cell phone and a monthly rate to use the phone. This means that the total charge for using the phone for x months would be
60 + xm
If Regina will pay $1140 for a 24 month cell phone plan, it means that
1140 = 60 + 24m
24m = 1140 - 60
24m = 1080
m = 1080/24 = 45
Answer:
A = 54 units ^2
Step-by-step explanation:
The area of a triangle is
A = 1/2 bh where b is the base and h is the height
A = 1/2 ( 18) * ( 6)
A = 54 units ^2
Answer:
components: ⟨15, 75⟩, magnitude: about 76
I got this right edge 2020
Answer:
(-2,-4)
Step-by-step explanation:
The given system is
Add both equations to eliminate y
Simplify both sides to get:
Divide both sides by 2
Put x=-2 into one of the equations say, x+y=-6 and solve for y
The solution is (-2,-4)