The associative property never works with subtraction.
For example:
2 - (7-8) <span>≠ (2-7) - 8
2-(-1)=3, but (-5)-8=-13
</span>
Answer:
y= -3x-20
Step-by-step explanation:
°First find the gradient between the two points
Gradient= - 3
°Using the formula y= mx+c substitute the gradient into the equation. You'll get something like this: y=-3x+c
°Substitute the point (-8;4) in the above equation. You'll get something like this : 4=-3(-8) +c
°Calculate the value of c. It'll give you c=-20
°Substitute c=-20 in the equation
Final answer is y= - 3x-20
The probability of obtaining a grid that does not have a 2-by-2 red square 16 2/3%
probability : The probability of an event can be calculated by means of probability formula via honestly dividing the favorable quantity of outcomes by way of the total variety of viable consequences.
<u>Step-by using-step clarification:</u>
<u>given that:</u>
form are both square or circle with both equally likely :
for this reason,
P(square) = half of ; P(circle) = half of
color are either blue, pink or inexperienced with the 3 equally likely ;
P(purple) = 1/3 ; P(green) = 1/three ; P(blue) = 1/three
chance of creating a inexperienced circle :
independent probability
P(green n circle) = p(inexperienced) * p(circle)
P(green n circle) = 1/3 * half of
P(green n circle) = 1/6
= 0.16666
(0.16666 * 100%) = 16.6666%
= 16 2/3%
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Answer:
b.the system of the equations has exactly one solution at(-4.3).
