Answer:
x - 7
Step-by-step explanation:
just add/substract like terms only
This is pretty straight forward.
First the area of a rectangle is given by the product of the length and the width and in this case the area is known.
Second the length is an unknown and since we are doing algebra lets call it x
Finally the width is 4 less than the width which is (x-4) units....x will be in meters and the width is 4 meters less then the length.
Putting it together we have x(x-4) = 117 m^2
then
x^2 - 4x = 117
one could use the solution for the quadratic or one could plug in a few numbers as test for the length
10 by 10 is 100 square meters
10 by 14 is 140 square meters
13 by 9 is 117 square meters....x is 13 and x-4 is 9
I used approximation once I had determined the relationship between the area of the rectangle and the perimeter of the rectangle
Answer:
The Three expressions that have a sum or difference of 3 /4 .
B . 11/12 − 1/6
C. 3/5 + 3/20
E . 2/3 + 1/12
Step-by-step explanation:
The Three expressions that have a sum or difference of 3 /4 .
are
B . 11/12 − 1/6
Therefore,
C. 3/5 + 3/20
Therefore,
E . 2/3 + 1/12
Therefore,
Answer:
100%
Step-by-step explanation:
6 possibilities: 3 odd and 3 even
P(odd or even) 6/6= 100%
Answer: slope = 1
Step-by-step explanation:
For two lines to be parallel then they have the same slope , if the slope of line 1 is M1 and then slope of line 2 is M2 , if they are parallel then M1 = M2.
Given; y- 4 = + (x + 8)
Make y the subject of the formula , so that the equation can be in slope - intercept form , that is in the form y = mx + c , where m is the slope and c is the y - intercept.
y - 4 = x + 8
Add 4 to both sides
y = x + 8 +4
y = x + 12
since the coefficient of x is 1 , this means that the slope is 1 , any line that will be parallel to this line must have a slope which is 1
