X1=-9 X2=-7
First factor the equation to (x+9) • (x+7)=0
Then separate x+9=0 x+7=0 then solve for x
-9,-7.
Answer:
726
Step-by-step explanation:
See step-by-step in photo attached.
Answer:
Step-by-step explanation:
From the question we are told that
The sample size is n = 15
The level of significance is 
The null hypothesis is 
The alternative hypothesis is 
Generally the degree of freedom is mathematically represented as

=> 
Generally the critical value of
at a degree of freedom of
is

in plain and short, is just their product.
now, let's convert the mixed fractions to "improper" firstly, and then multiply.
