Answer:
4x - 36 feet
Step-by-step explanation:
The area A of a square whose sides are s units is given as
A = s * s
Given that the area A = x^2-18x+81, factorizing
A = x^2-9x-9x+81
A= x(x-9)-9(x-9)
A = (x-9)(x-9)
A = (x-9)^2
This means that the size of each side of the square courtyard is x-9 feet long
Recall that the perimeter P of a square whose side is s long is given as
P = 4s hence since the side of the courtyard is x - 9 feet, the perimeter of the courtyard
P = 4(x-9)
= 4x - 36 feet
probability of getting a tail , PA = 1/2
probability of gettin a number 2 , PB = 1/8
now ,
the probability to get tail and 2 = PA x PB = 1/2 x 1/8 = <u>1/16</u>.
hence it's the answer.
By : Modern Einstein
Answer:
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We can use the two point form to find the answer:

Where y1 is the y coordinate(coordinate on the right hand side of (-9)) of the of the first coordinates, and y2 is the y coordinates of the second coordinates given (0).
While x1(-9) and x2(-6) are the x-coordinates(left hand side of the coordinates) of the coordinates given seperately.
m is the slope of the two points, and the formula is:

In this case:

We can then proceed to find the eqaution by putting *one* of the points into the two-point formula.
Put (-6,0) into the formula:
-0-y = 3(-6-x)
-y = -18 - 3x
y = -(-18 - 3x)
y = 18 + 3x
Therefore the answer is y= 18+3x.
Hope it helps!
Answer:
X = 5
Step-by-step explanation:
When the line is going vertically down, the x-intercept is always the equation of the line.