HELP PLEASEEEEEEEEEEEEEEEEEE
2 answers:
Answer: The value of 'n' is 6.
Step-by-step explanation: Given that ΔXWZ is an isosceles triangle, where XZ = n, WZ = 2n - 5, and the perimeter of the triangle is 20 units.
We are to find the value of 'n'.
As given in the figure, in ΔXWZ,
WX = WZ.
So, WX = 2n - 5.
We know that the perimeter of a triangle is equal to the sum of its three sides, so the perimeter of ΔXWZ is given by
According to the question, we have
Thus, the value of 'n' is 6.
You might be interested in
Answer:
No, there is not sufficient evidence to support the claim that the bags are underfilled
Step-by-step explanation:
A manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 434 gram setting.
This means that the null hypothesis is:
It is believed that the machine is underfilling the bags.
This means that the alternate hypothesis is:
The test statistic is:
In which X is the sample mean, is the value tested at the null hypothesis,
is the standard deviation and n is the size of the sample.
434 is tested at the null hypothesis:
This means that
A 9 bag sample had a mean of 431 grams with a variance of 144.
This means that
Value of the test-statistic:
P-value of the test:
The pvalue of the test is the pvalue of z = -0.75, which is 0.2266
0.2266 > 0.01, which means that there is not sufficient evidence to support the claim that the bags are underfilled.