The answer is b = -6.
You can find this fairly simply. First, distribute the power of the outside of the parenthesis into it.
Now that we have this, we can manipulate the right side of the equation. When a power is on the bottom of an equation, we can move it to the top if we make it negative.
Now since we have the same base, in order for them to be equal, we would need for the powers to be equal. This means we can set them equal to each other and solve.
4b = -24
b = -6
Scientists need technology to figure out other stuff. For example, A computer is used to research.
Answer:
0.5 CENTIMETERS
Step-by-step explanation:
Answer:
358.5 sq-in
Step-by-step explanation:
This is the answer.
Answer:
There is not enough evidence to conclude that the mean pH level is 8.5.
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 8.5
Sample mean, = 8.42
Sample size, n = 49
Alpha, α = 0.05
Sample standard deviation, s = 0.16
First, we design the null and the alternate hypothesis
We use two-tailed t test to perform this hypothesis.
Formula:
Putting all the values, we have
Now,
Since, the test statistic does not lies in the acceptance region, we fail to accept the null hypothesis and reject it. We accept the alternate hypothesis.
There is not enough evidence to conclude that the mean pH level is 8.5.