Answer: The answer is 10 :)
Step-by-step explanation: (-8+3) + (-x+5) distributive property
-8+3=-x+5
-5=-x+5 Subtract 5 to both side
-5 = -5
-10=-x divide x which is (1) to both side
/-1 =/-1
10=x
Answer:
z= 3.63
z for significance level = 0.05 is ± 1.645
Step-by-step explanation:
Here p = 42% = 0.42
n= 500
We formulate our null and alternative hypotheses as
H0: p= 0.42 against Ha : p> 0.42 One tailed test
From this we can find q which is equal to 1-p= 1-0.42 = 0.58
Taking p`= 0.5
Now using the z test
z= p`- p/ √p(1-p)/n
Putting the values
z= 0.5- 0.42/ √0.42*0.58/500
z= 0.5- 0.42/ 0.0220
z= 3.63
For one tailed test the value of z for significance level = 0.05 is ± 1.645
Since the calculated value does not fall in the critical region we reject our null hypothesis and accept the alternative hypothesis that more than 42% people owned cats.
Answer:
630
Step-by-step explanation:
you need to do a 2 step equation, first finding the amount of students that get accepted, and then use the info you just got solving how many people actually enroll.
formula:
part part %
---------- = -----------
total total %
Answer:
Step-by-step explanation:
Answer:
Equation: 
m
m
m
Step-by-step explanation:
The equation of the perimeter of this shape can be written as: (Sides with the same number of dashes are equal in length)
Which becomes:
Since AB = 
, we can substitute to get the length of AB:
We can also use substitution to solve for the length of EF:
Hope this helps :)
