X=20
180=7x+x+20
-20. -20
180=7x+x
180=8x
divide by 8
x=20
Answer:
Cumulative frequency distribution
Step-by-step explanation:
Cumulative frequency distribution is a form of a frequency distribution that represents the sum of a class and all classes below it. Remember that frequency distribution is an overview of all distinct values (or classes of values) and their respective number of occurrences.
Answer: Option B, Option C, Option E
Step-by-step explanation:
The options written correctly, are:
For this exercise you need to use the following Inverse Trigonometric Functions:
When you have a Right triangle (a triangle that has an angle that measures 90 degrees) and you know that lenght of two sides, you can use the Inverse Trigonometric Functions to find the measure of an angle :
Therefore, the conclusion is that the angles "x" and "y" can be found with these equations:
F(x) = -1.50x + 40.....basically, this is saying that Gloria has 40 bucks in her lunch account and each meal costs her 1.50.
By changing the -1.50 to -2.75 means she is paying more for her meals...the cost of a meal went up from 1.50 to 2.75.