Answer:
its b
Step-by-step explanation:
The solution to the given equation is 4 and -4.
<h3>What is a fraction?</h3>
Fractions are the numerical values that are a part of the whole.
A whole can be an object or a group of objects.
The given equation is;
![\rm \dfrac{y}{y - 4}- \dfrac{4}{y + 4}= \dfrac{32}{y^2- 16}](https://tex.z-dn.net/?f=%5Crm%20%5Cdfrac%7By%7D%7By%20-%204%7D-%20%5Cdfrac%7B4%7D%7By%20%2B%204%7D%3D%20%5Cdfrac%7B32%7D%7By%5E2-%2016%7D)
A fraction is used to represent the portion/part of the whole thing.
The solution of the fraction is determined in the following steps given below.
![\rm \dfrac{y}{y - 4}- \dfrac{4}{y + 4}= \dfrac{32}{y^2- 16}\\\\\rm \dfrac{y(y+4)-4(y-4)}{(y - 4)(y+4)}= \dfrac{32}{(y-4)(y+4)}\\\\y^2+4y-4y+16=32\\\\y^2=32-16\\\\y^2=16\\\\y=\pm 4](https://tex.z-dn.net/?f=%5Crm%20%5Cdfrac%7By%7D%7By%20-%204%7D-%20%5Cdfrac%7B4%7D%7By%20%2B%204%7D%3D%20%5Cdfrac%7B32%7D%7By%5E2-%2016%7D%5C%5C%5C%5C%5Crm%20%5Cdfrac%7By%28y%2B4%29-4%28y-4%29%7D%7B%28y%20-%204%29%28y%2B4%29%7D%3D%20%5Cdfrac%7B32%7D%7B%28y-4%29%28y%2B4%29%7D%5C%5C%5C%5Cy%5E2%2B4y-4y%2B16%3D32%5C%5C%5C%5Cy%5E2%3D32-16%5C%5C%5C%5Cy%5E2%3D16%5C%5C%5C%5Cy%3D%5Cpm%204)
Hence the solution to the given equation is 4 and -4.
Learn more about fractions here;
brainly.com/question/17431959
The last choice is the answer. y=-3x
Answer:
#3
Step-by-step explanation:
Answer:
the probability that the project will be completed in 95 days or less, P(x ≤ 95) = 0.023
Step-by-step explanation:
This is a normal probability distribution question.
We'll need to standardize the 95 days to solve this.
The standardized score is the value minus the mean then divided by the standard deviation.
z = (x - xbar)/σ
x = 95 days
xbar = mean = 105 days
σ = standard deviation = √(variance) = √25 = 5
z = (95 - 105)/5 = - 2
To determine the probability that the project will be completed in 95 days or less, P(x ≤ 95) = P(z ≤ (-2))
We'll use data from the normal probability table for these probabilities
P(x ≤ 95) = P(z ≤ (-2)) = 0.02275 = 0.023