Answer:
4x-4y
Step-by-step explanation:
4x+11y-15y
Combine like terms
4x-4y
Answer:
4 cm
Step-by-step explanation:
The side of the square will be the average of the two sides of the rectangle with the same perimeter.
Formulas for the perimeters are ...
P = 2(L+W)
P = 4s
Equating these gives ...
4s = 2(L+W)
s = (L +W)/2 . . . . . divide by 4
For the given side lengths, ...
s = (2 cm +6 cm)/2 = (8/2) cm = 4 cm
The length of one side of the square is 4 cm.
You are given
two points, (-1, 10) and (5, 8). You are required to find the equation in slope
intercept form given the points. The equation of a slope intercept form is y =
mx + b. Where m is the slope and b is the y-intercept. By definition, slope, m,
is the rise over run or the difference of y over the difference of x.
m =
y2-y1/x2-x1
Let us denote
y2=8, y1=10, x2=5 and x1=-1 and we get
m =
8-10/5-(-1)
<span><u>m = -1/3</u>,
a negative slope means it is rising to the left of the graph.</span>
Since the
slope passes the two points, it also passes the y-intercept. Choose one of the
points, (-1, 10) and substitute it to y = mx + b.
y = mx + b
10 =
(-1/3)(-1) + b
<u>b = 29/3</u>
<u>The
equation now is y = -1/3x + 29/3.</u>
Answer to first one is X = 9
Answer to second one is X = 35
