Answer:
x+ 1= 3
Step-by-step explanation:
^^
Answer: 9 under root 6
Step-by-step explanation:
Sales tax rate for the above sweater is charged at the rate of 8%
Step-by-step explanation:
Sweater’s cost initially- 28$
Cost of Sweater after 30.24$
Sales tax rate deducted?
Analysing the above-provided details we conclude that an increase in the cost was probably due to the addition of sale tax.
Sales tax charged= Cost of the sweater after charging- initial cost
= 30.24$-28$
=2.24$
Percentage of sales tax charged= (sales tax charged/initial cost) *100
Substituting the values of the sales tax and initial cost in the above-provided equation-
= (2.24/28) *100
=8%
Hence the Sales tax charged at the sweater was 8%
First, it is important to understand that parallel lines have the same slope. Therefore, based on the formula y=mx+b in which m represents slope and based on the equation y=-1/2x+5, the slope of the unknown line is also -1/2. Then, there are two different ways to solve this problem using different formulas.
The first method to find the unknown equation is easy but not widely known. We can use the point slope formula which is (y-y1)=m(x-x1) in which we can plug a point and slope to find the equation. When we plug in the values given, we get y+6=-1/2(x-4) or y+6 =-1/2x+2 which simplifies to y=-1/2x-4.
The other method is using the slope intercept form or y=mx+b. When we plug in our slope and our point, we get -6=-1/2*4+b or -6=-2+b so b must equal -4, therefore we have all the information we need to plug values into y=mx+b. When we plug in our slope and y-intercept, we get y=-1/2x-4 which is the answer.
I hope this helps!
Part A
Correlation coefficient: -.99
This tells us that as time goes on (value of x increases) the area of the puddle goes down (value of y decreases)
Part B
y₂ - y₁
------- = slope
x₂ - x₁
9 - 15
--------
5 - 8
-6/-3 = 2
So the slope equals -2, regardless of the fact that we got 2 as an answer there, we know that it is a negative slope
Part C
The data represents causation because an increase in the value of x results in a decrease in the value of y, this shows an example of direct causation between x and y.
