Answer:
7x^3+8
this is because 8 added=+8
and 7 and x cubed=7x^3
so
8+7x^3
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51
This answe is correct because u
The y-intercept in the equation in the form y = mx + b is b.
To find the y-intercept in x - y = -1, isolate y on the left-hand side:
x - y = -1
-y = -x - 1
y = x + 1
b in this equation is 1, so the y-intercept is 1.
Hope this helps.
Answer:
Step-by-step explanation:
Given is a sample of contents of a random sample of 10 containers as follows:
10.1 9.7, 10.5, 10.4, 9.8, 9.7, 9.4, 9.9, 10.7, and 9.7 liters.
To check whether the mean is 10.1 litres.
Set up hypothesis as
(two tailed test at 10% level of significance)
Sample mean =9.9
Sample std dev=0.420185
Std error =0.1329
n = 10
df = 9
Mean difference = 9.9-10.1 =-0.2
Test statistic t = -0.2/0.1329 =-1.505
p value= 0.1666
Since p value is >0.10 we accept null hypothesis
Conclusion:
the average content of containers of a particular lubricant is 10.1 liters can be taken as true at 90% level of confidence
2 is the answer!!
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