Answer:
graph A
Step-by-step explanation:
(x+3)(x+3) is the x-intercepts of the parabola.
x+3=0 is how to determine the x-intercept.
x= -3
Since both of them are -3, the graph would be A, because the part where the graph touches the x axis is -3.
Answer:
you just rotate the
Step-by-step explanation:
The inequality can be used to find the domain of
Answer: Option B
<u>Step-by-step explanation:</u>
We have , domain is the set of all possible x-values which will make the function "work", and will output real y-values. Basically to find domain of any function means to find range of values of x that will give real values of y.
For the equation , we know that there's no value ( iota or complex numbers are there but here we will deal with real numbers ) of negative numbers under square root
∴ must be greater than or equal to 0.
⇒
Answer:
Option B) the minimum acceptable chance of making a type I error.
Step-by-step explanation:
We define significance level as:
- It is denoted by α.
- It is the probability of rejecting the null hypothesis when it is true.
- Thus, it is the type I error.
- Lower significance levels indicate that stronger evidence are required to reject the null hypothesis.
- We compare the significance level to the p-value to decide whether to accept or reject the null hypothesis.
- It is the probability of false positive.
- The probability of making a type I error is α, which is the level of significance.
- For example: A significance level of 0.05 indicates that there is a 5% chance that we are wrong when we reject the null hypothesis because it is actually true. To lower this risk, you must use a lower value for α.
Option B) the minimum acceptable chance of making a type I error.
Answer:
24
Step-by-step explanation:
= 49 because any number squared is positive.
Since b=2,
2(-4)= -8.
Then this is 49-8-17, which equals 24.