Answer:
The simplified system is the arbitrary solution of the original system of equations.
Y=9
X=6
Step-by-step explanation:
I have used an online Math Algebra problem solver to guide me to my answer and this is 100% sure the correct answer.
<u><em>PLEASE HELP ME LIKE HAVE HELPED YOU AND MARK THIS ANSWER BRAINLIEST</em></u>
Answer:
1. Simplify the expression.
x2 + 3
2. Simplify the expression.
x2 − 5
It can be deduced that the probability of having 4 or more correct guesses will be 0.0296.
<h3>How to calculate the probability</h3>
From the given information, the null hypothesis is p = 1/7 and the alternate hypothesis is p>1/7. In this case, the mind reader gets a 4 out of 9 chances.
In order to test the hypothesis, simulations for 10000 cases were run with a probability of the correct answer being 1/7.
In this case, the p-value is the probability of correct answers that are greater than 4, assuming the null hypothesis is true. Here the p-value is 0.0296.
Also, the significance level to reject the hypothesis is less than 0.01. Since p > 0.01, we then fail to reject the hypothesis. Therefore the null hypothesis stands and Joao is not a mind reader.
Learn more about probability on:
brainly.com/question/24756209
Y=-x^2 is just y=x^2 reflected over the x-axis. In other words, the parabola is upside-down.
Answer:
c. 7
Step-by-step explanation:
Amanda is 15. 15 is 3 times the age difference so you know the age difference is 5. Britney is 12 so subtract 5 and thats 7.
