Darling, does anyone want to disappear?
1 answer:
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Answer:
Step-by-step explanation:
Given
--- rate
Required
Determine which solution is correct or incorrect
The solutions are not given. So, I will provide a general explanation
The amount (n) is calculated as:
So, we have:
The above is the general equation to solve for the amount, given h hours
When h = 2.5, we have:
Answer:
x = 10, y ≈ 11.2
Step-by-step explanation:
Hi there,
We can find the length x first since we are given the lengths of the other two sides of the bottom right triangle. In order to find the length of x, it is important to know the Pythagorean Theorem and the fact that x is the hypotenuse.
+
=
← Pythagorean Theorem
<u>To find x:</u>
+
=
100 =
c = 10
Therefore, the value of x is 10.
<u>To find y:</u>
We now know the length of two sides of the upper right triangle. The value of y can be found by using the theorem again.
+
=
+ 100 = 225
= 125
a =
a = 11.2 when rounded to the nearest tenth.
Therefore, the value of y is approximately 11.2.
Hope this explanation is useful. Cheers.
Answer:
The p value for this case would be given by:
Since the p value is very high ant any significance level we will have enough evidence to FAIL to reject the null hypothesis, so then we can conclude that the true mean is not significantly different from 90.1 and the method not shows a significantly effect in the scores.
Step-by-step explanation:
Information provided
represent the sample mean for the scores on the standardized test in the general population of 6th graders
represent the population standard deviation
sample size
represent the value that we want to verify
z would represent the statistic
represent the p value for the test
System of hypothesis
We want to verify if the new teaching method negatively affects reading comprehension scores, so then the system of hypothesis for this case are:
Null hypothesis:
Alternative hypothesis:
Since we know the population deviation the statistic would be:
(1)
Replacing the info given we got:
The p value for this case would be given by:
Since the p value is very high ant any significance level we will have enough evidence to FAIL to reject the null hypothesis, so then we can conclude that the true mean is not significantly different from 90.1 and the method not shows a significantly effect in the scores.