2x^4+x^3-x^2+8x^2+4x-4=2x^4+x^3+7x^2+4x-4
Answer:
x<4
Step-by-step explanation:
simple linear inequality
x+1<5
add -1 to both side of the inequality
x+1-1<5-1
x<4
Answer:
The number of pounds of apples is 4.5 and the number of pounds of grapes is 2.5
Step-by-step explanation:
Let
x ------> the number of pounds of apples
(x-2) -----> the number of pounds of grapes
we know that
Solve for x
so
therefore
The number of pounds of apples is 4.5 and the number of pounds of grapes is 2.5
Answer:
7.3 in
Step-by-step explanation:
area = 27 = 54/2 = (x^2)/2
so what squared is 54?
7.34 whatever inches.
round it down, that's 7.3.
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.