Answer:
257
Step-by-step explanation:
First you have to add all of them up then divide by how many there are:) good luck.
Answer: The probability is 0.4
Step-by-step explanation:
Since the time taken to assemble a car in a certain plant is a random variable having a normal distribution, we would apply the formula for normal distribution which is expressed as
z = (x - µ)/σ
Where
x = time taken to assemble cars
µ = mean time
σ = standard deviation
From the information given,
µ = 20 hours
σ = 2 hours
We want to find the probability that a car can be assembled at this plant in a period of time less than 19.5 hours. It is expressed as
P(x < 19.5) = 1 - P(x ≤ 19.5)
For x = 19.5
z = (19.5 - 20)/2 = - 0.25
Looking at the normal distribution table, the probability corresponding to the z score is 0.4
Answer:
y = -1½x + 3 11⁄14
Step-by-step explanation:
First convert from <em>Standard Form</em> to <em>Slope-Intercept Form</em>:
2x - 3y = 4
-2x - 2x
____________
-3y = -2x + 4
___ _______
-3 -3
y = ⅔x - 1⅓ >> Slope-Intercept Form
↑
slope
Now, Perpendicular Lines have OPPOSITE MULTIPLICATIVE INVERSE <em>Rate</em><em> </em><em>of</em><em> </em><em>Changes</em><em> </em>[<em>Slopes</em>], so since the slope is ⅔, the opposite multiplicative inverse of that would be -1½, or -3⁄2. Anyway, do the following:
4 = -1½[-⅐] + b
3⁄14
-3⁄14 - 3⁄14
_______________
3 11⁄14 = b
y = -1½x + 3 11⁄14 >> New equation
I am joyous to assist you anytime.
Answer:
12
Step-by-step explanation:
congruent sides