40 POINTS 2 questions
2 answers:
Answer:
First Question: A
Second Question: A
Step-by-step explanation:
First question
The trick is to be able to copy and place the graph so that the two coordinate systems are the same. Desmos is very good at that kind of thing. The graph is given to you on the right upload.
From this you can see that the points that solves the inequalities is anything to the left and above the point (4.8,0.4) which is marked. Therefore the answer is DACK which is A
Part B
The problem is in the testing. You can build 20 children's bikes and 6 adult bikes in less than 120 hours.
Building:20*4 + 6*6 = 80 + 36 = 116 hours. that's less than 120 so you're good
Testing: 20 + 6*4 = 80 + 24 = 104 hours. That's not less than 100.
The answer is A
You might be interested in
Answer:
Using Pedmas rule:
<u>subtract: 6-6 = 0</u>
<u>simplify the following</u>
<u>the numerator and denominator cancels out</u>
Answer:
0.55% probability that exactly 5 out of the first 13 customers buy a magazine
Step-by-step explanation:
For each customer, there are only two possible outcomes. Either they buy a magazine, or they do not. The probability of a customer buying a magazine is independent of other customers. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
10% of his customers buy a magazine
This means that
What is the probability that exactly 5 out of the first 13 customers buy a magazine?
This is P(X = 5) when n = 13. So
0.55% probability that exactly 5 out of the first 13 customers buy a magazine