Answer:
definitely 7
Step-by-step explanation:
y=1/x-6
The midpoint formula states that the midpoint is equal to (x1 + x2/2, y1 + y2/2). However, in this instance, we only have to deal with the x-values because that is where our unknown variable x is. Using our formula for the x-values, we can set up the following equation:
(x + 9)/2 = 7
To solve this equation, we must first multiply both sides by 2 to get rid of the denominator on the left side of the equation.
x + 9 = 14
Next, we should subtract 9 from both sides of the equation to get the variable x alone on the left side.
x = 5
Therefore, your answer is x=5.
Hope this helps!
Good morning ☕️
Answer:
-5x(x + 2)
Step-by-step explanation:
the key is factoring:
-5x² - 10x = -5x × (x) - 5x × (2) {here we notice that -5x is a common factor}
= -5x(x + 2)
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:)
Answer:
hope this helps you
√−3x+10=x
x=2 and x=−5
x=2
x=5
No solution
Answer:
If we put x=2 in the given equation, we get the answer for the equation as 2
Given:
To find:
Why the answer is 2
Solution:
If we substitute the value x=2 in the given option, we get
Result:
Thus we can say that when substitute the value of x=2
We get the answer as
B. Fail to reject the null hypothesis.
C. Reject the null hypothesis and conclude the mean is lower than $6,000 per day.
D. Reject the null hypothesis and conclude the mean is higher than $6,000 per day.
Answer:
Option B) Fail to reject the null hypothesis.
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = $6,000
Sample mean, = $6,300
Sample size, n = 49
Alpha, α = 0.01
Population standard deviation, σ = $1,000
First, we design the null and the alternate hypothesis
We use one-tailed(right) z test to perform this hypothesis.
Formula:
Putting all the values, we have
Now,
Since,
We fail to reject the null hypothesis and accept the null hypothesis. Thus, we conclude that sales have not increased as a result of the advertising campaign
Option B) Fail to reject the null hypothesis.