Answer:
- 11x - 2
Step-by-step explanation:
note that (f + g)(x) = f(x) + g(x)
f(x) + g(x)
= 2x + 1 - 13x - 3 ← collect like terms
= - 11x - 2
Well if there is no number I front of a variable it is a one. For example 12c-c: 12c-1c so just take the numbers and then subtract th m and bring the c down next to the answer. 12-1:11 so 12c-1c:11c
Answer:
The mean apple weight is different from 8oz
Step-by-step explanation:
Claim : An apple farm claims that the average weight of all their apples is 8oz.

n = 20
Standard deviation =s = 0.95
Since n < 30
So we will use t-test
x = 7.77

Substitute the values :


Since we are not given the significance level
So, we will take 5%
So,α = 0.05
Degree of freedom = df = n-1 = 20-1 = 19
So, using t table

Since t critical > t statistic
So, we accept the null hypothesis.
So, The mean apple weight is different from 8oz
I think the answer to your question is 11/2