Answer:
x2 - 4x - 4
———————————
x - 2
Step-by-step explanation:
Answer: We reject the null hypothesis, and we use Normal distribution for the test.
Step-by-step explanation:
Since we have given that
We claim that
Null hypothesis : 
Alternate hypothesis : 
There is 5% level of significance.

So, the test statistic would be

Since alternate hypothesis is left tailed test.
So, p-value = P(z≤-2.31)=0.0401
And the P-value =0.0401 is less than the given level of significance i.e. 5% 0.05.
So, we reject the null hypothesis, and we use Normal distribution for the test.
Answer:
A=49 degree
a=13.5
b=11.7
Step-by-step explanation:
Answer:
x=4
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
Simplify the expression
Cancel the common factor of 3
Evaluate the exponent
I hope this helped can I get brainliest please.....