-4(3m-3)+(-10+8m)
12m+12-1+8m
12m+8m = 20m
+12 -1= +11
answer: 20m+11
*note negative times a negative equals positive and negative times positive is negative
first: you multiply -4 by 3m which is -12m.
second: you multiply -4 by -3 which is +12
third: find the invisible which is 1. (located right here: +(1) (-10+8m)
fourth: multiply invisible 1 by -10 which is -10
fifth: multiply invisible one by +8m which is +8m
sixth: combine like terms
seventh: answer
Answer:
Step-by-step explanation:
pythagoras theorem
a^2+b^2=c^2
12^2+x^2=13^2
144+x^=169
x^2=169-144
x=
x=5 km
Answer:
Step-by-step explanation:
Represent Green with G
So,
Required
Determine the probability that 10 out of 16 prefer green
This question is an illustration of binomial distribution and will be solved using the following binomial distribution formula.
In this case:
-- number of people
-- those that prefer green
So, the expression becomes:
Substitute 50% for G (Express as decimal)
Apply law of indices
Solve 16C10
<em>Hence, the required probability is 0.1222</em>
Answer:
18
Step-by-step explanation:
The correct equation that models for this problem is x over y or x/y.
Let the following values be:
x - would be the money or commissions that Duncan earned.
y - would be the 20 percent that he gives his assistant