Answer:
Step-by-step explanation:
1) (x+2)(x+2)=-x-2
+2x +2x +4+=-x-2
+4x+4+x+2
+5x+6
2) +4x +12 -16x +24=0
-12x+36=0
3) (x-4)(x+1)
x=4 and/or x=-1
4) (x-5)(x-6)
x=5 and/or x=6
5) (x-7)(x+2)
x=7 and/or x=-2
6) +3x-10=0
(x-5)(x+2)
x=5 and/or x=2
7) +x-20
(x-5)(x+4)
x=5 and/or x=-4
Factorized: (a + b + 2) ^2
Answer:
C
Step-by-step explanation:
Answer:
Now we can find the p value with the following probability:
Step-by-step explanation:
Information given
n=97 represent the random sample taken
estimated proportion of defective
is the value to verify
z would represent the statistic
represent the p value
Hypothesis to tests
We want to tet if the true proportion is less than 6%, the system of hypothesis are:
Null hypothesis:
Alternative hypothesis:
The statistic is given by:
(1)
Replacing the info given we got:
Now we can find the p value with the following probability: