Answer:
5. A) two solutions
6. one solution
Step-by-step explanation:
5. A graph shows the curve has two x-intercepts, so two solutions. You can also figure this by looking at the discriminant:
b^2 -4ac = (7)^2 -4(-4)(8) . . . . a positive number
When the discriminant is positive, there are two real solutions.
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6. The equation factors as ...
0 = 3(x +3)^2
This will have one real solution at x=-3.
The correct statement that can be made about the means is a. There is not enough evidence to suggest that the means are different.
<h3>What is true about the means?</h3><h3 />
Given that α = 0.01, we can use an ANOVA analysis to determine the p-value of the means.
When we run the means through an ANOVA software, the p-value can be found to be 0.1142.
This figure is greater than α = 0.01.
This means that we do not have the evidence to reject the null hypothesis that the means are different.
Options for this question:
- a. There is not enough evidence to suggest that the means are different.
- b. The mean age of middle school teachers is different from the mean age of high school teachers.
- c. The mean age of middle school teachers is different from the mean age of college teachers.
- d. The mean age of high school teachers is different from the mean age of college teachers.
Find out more on the p-value at brainly.com/question/4621112
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Answer:
1 2/3
Step-by-step explanation:
-4 1/3 ÷ -2 3/5
-13/3 ÷ -13/5
-13 x 5/ 3x -13
-65/-39
1 2/3
The Julia age will be 39 years old if In 2021,Julia is 14 years old. Michael is 2.50 times as old as Julia.
<h3>What is a linear equation?</h3>
It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
Let's suppose the age of the Julia is x years when Michael is 60
Julia's age = 14 years in 2021
Age of Michael = 2.50×14 = 35 years
Increase in age Michael of 60 – 35 = 25
x = 14+25 = 39 years
Thus, the Julia age will be 39 years old if In 2021,Julia is 14 years old. Michael is 2.50 times as old as Julia.
Learn more about the linear equation here:
brainly.com/question/11897796
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158 is 144.95412844037% of 109
