No.2 is B because they are on a line together so they are aligned/corresponding angles and are equal
Since you are solving for a, you want to have a on one side of the equation and the other terms on another side of the equation. It would be easiest to have all the terms with a on the left side of the equation, so that is what we will do.
Subtract 9a from both sides to get a on the left side of the equation.
5 + 5a = -5
Subtract 5 from both sides of the equation to isolate the term with a.
5a = -10
Divide both sides of the equation by 5 to solve for a.
a = -2
Answer: there is almost no relationship between x and y.
Explanation:
The coefficient r tells how well the data fix into the model chosen.
A value r = 1 indicates a perfect positive linear relation.
A value r = - 1 indicates a perfect negative linear relation.
Intermediates values may be interpreted more or less in this way:
1) 0.7 < |r| < 0.7 => strong relation between the variables
2) |r| ≈ 0.5 moderate relation between the variables
3) |r| ≈ 0.3 poor relation between the variables
4) |r| ≈ 0 non-relation between the variables.
Answer:
<u>The amount of total sales last year was $ 528,400</u>
Step-by-step explanation:
1. Let's review the information given to us to answer the question correctly:
Total sales at office products this year = $ 713,340
Growth rate year over year = 35%
2. What is the amount of last year’s sales?
Let's use the Rule of Three Simple to find out the answer, as follows:
Total Sales Percentage
713,340 (This year) 135%
x (Last year) 100%
x * 135 = 713,340 * 100
135x = 71'334,000
x = 71'334,000/135
<u>x = 528,400 (Rounding to the next whole number)</u>
