[-4, ∞) is the correct range for that graph. Hope that helps
The value of x to the nearest whole number is 68 degrees
<h3>Equations and expressions</h3>
Given the trigonometry function shown below:
y = 50 tan x
For the coordinate (x, 125)
If the value of y is 125, then;
125 = 50tanx
tanx = 125/50
tanx = 2.5
x = arctan(2.5)
x = 68.19
Hence the value of x to the nearest whole number is 68 degrees
Learn more on trig function here: brainly.com/question/1143565
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Answer: 1022.75 kWh.
Step-by-step explanation:
Given: In one region, the September energy consumption levels for single-family homes are found to be normally distributed with a mean of 1050 kWh and a standard deviation of 218 kWh.
i.e. 
and 
Let X denote energy consumption levels for random single-family homes and x be the energy consumption level for the 45th percentile.
Then, 
From z-table, 
Also, 
Hence, the energy consumption level for the 45th percentile is 1022.75 kWh.
Standard form is: 9/5x+y=3
Mean: Average of the numbers in a set of data.
The mean of a data set is equal to the sum of the set of numbers divided by how many numbers are in the set. If we want to find the mean of the data set shown here, let's begin by adding the numbers.
35 + 40 + 45 + 50 + 55 + 60 + 65 = 350
Now, this will be divided by how many numbers are in the set which is 7.
350 ÷ 7 = 50.
Therefore, the mean of the set of data shown here is 29.2.
