Answer:
(-5,-28)
Step-by-step explanation:
Look at graph.
Hope this helps!
Answer:
Sally is 63
Step-by-step explanation:
Represent Sally's age by x and Sam's by y.
Then x = 3y and x + y = 84.
Substituting 3y for x in the second equation, we get:
3y + y = 84, or 4y = 84, or y = 21. Since Sally is 3 times as old as Sam, we multiply 21 by 3: Sally's age is 3(21 years) = 63 years
Answer:
10.11 feet
Step-by-step explanation:
i know because i did this before
can i have the crown???
Answer:
The probability is 82.64, Given this probability, lights should be installed because they exceed the 80% limit.
Step-by-step explanation:
according to the exercise we can have the data that
the number of accidents per year = 234
then we will look for the number of accidents per week obtaining:
234/52 = 4.5
the probability that more than 2 accidents will occur at most would be
p (x> 2) = 1-p (x <= 2)
replacing the data we get that
1- (p (x = 0) + p (x = 1) + p (n = 2))
= 1-0.1736 = 0.8264
we convert to a percentage and the answer is 82.64%
Given this probability, lights should be installed because they exceed the 80% limit.
First number:
5+4=9
9-1=8
8 could be a number in the pattern.
