Begin by subtracting 1/8 from both sides to get

and get a common denominator of 8 on the right:

. Now simplify and cross-multiply: 39x = -16 andx = -16/39
The square root of 7 is 2.645.
The square root of 2 is 1.414.
The square root of 8/2 is 2.
Answer:
89.04% of the data points will fall in the given range of z = − 1.6 and z = 1.6
Step-by-step explanation:
We are given a normally distributed data.
We have to find the percentage of data that lies within the range z = − 1.6 and z= 1.6
Formula:

89.04% of the data points will fall in the given range of z = − 1.6 and z= 1.6
One way to write 18/6 is to compute 18/6 to be the whole number of a quotient that is equal to. Another way to write 18/6 is to write it as an improper fraction that's reduced. One more way to write 18/6 is as a decimal. Note how all of these ways of writing the same expression are all equal to writing one same value, and it's the WAY in which you modify what you're writing.
The slope of the function to 3 dp is 0.280
<h3>Slope of a function</h3>
Slope is also known as the gradient of a function
Given the function 
Taking the derivative of the function will give:

Substitute x = 5 into the equation to have:


Hence the slope of the function to 3 dp is 0.280
Learn more on slope of function here: brainly.com/question/405397