Answer:
the answer should be 8.9
you square 12 and square the 8 and subtract them by each other
Multiply the first equation by -4, to set up the x-coefficients to cancel. Take the value for y and substitute it back into either one of the original equations.
Answer:
I think x is 14
Step-by-step explanation:
15+4=19
19-5=14
Answer:
0.18173219.
Step-by-step explanation:
We have been asked to find what will be the probability that at least 6 of 9 adults use their smartphones in meetings or classes.
We will find our answer using Bernoulli's trails.

First of all we will find the probabilities when r is 6, 7,8 and 9 then we will add them all.
When r=6,




Similarly we will find Probabilities when r=7, 8 and 9.
When r=7




When r=8




When r=9,



Now let us add all the probabilities to get the final answer.

Therefore, probability that at least 6 of 9 adults use their smartphones in meetings or classes is 0.18173219.
Answer: The answer is 35
Step-by-step explanation:
7 times 5 = 35x