Let's find the slope of the line through the two given points. Use the slope formula
m = (y2 - y1)/(x2 - x1)
m = (5 - (-3))/(-3 - (-6))
m = (5 + 3)/(-3 + 6)
m = 8/3
The slope of the line through the two points is 8/3. This is not equal to the other slope of 8/9, so the two lines are <u>not</u> parallel.
--------------
Multiply the two slopes together. If you get -1, then the lines are perpendicular.
(slope1)*(slope2) = (8/9)*(8/3) = (8*8)/(9*3) = 64/27 = 2.37 approximately
The result is not -1, so the lines are <u>not</u> perpendicular.
--------------
<h3>Final Answer: Neither</h3>
Equation = 13+6x=67
6x=67-13
6x=54 divide both sides of the equation by 6
x=9 hours.
Hello!
First you can make an equation
103 + 35 + x + x + x / 5 = 39
Combine like terms
138 + 3x / 5 = 39
Multiply both sides by 5
138 + 3x = 195
Subtract 138 from both sides
3x = 57
Divide both sides by 3
x = 19
Now you add all the numbers up to get the sum
103 + 35 + 19 + 19 + 19 = 195
So the answer is (i) is 195
The answer is (ii) is 19
Hope this helps!
The amount of Tina money can be expressed in an exponent function like this:
an= $1100(1.0725)^n
The variable an represent the total money and variable n is the years needed to achieve that amount.
Then, the time needed for the money to reach $6,600 would be:
an= $1100(1.0725)^n
$6,600= $1100(1.0725)^n
$1,100(6)= $1100(1.0725)^n
6= (1.0725)^n
n= log1.075 6
n= 24.78