We see that the second definition is not a good definition. We want both parts to have the same truth value, but we see that we can have two angles created by a ray that are not equal. That means the antecedent is false but the consequence is true, which means it's not an iff statement, and a bad definition in this context.
Answer:
the question is only this much or there are the another question too
75% of the teachers were first-year teachers
Step-by-step explanation:
the formula for percentage will be used for the problem
The percentage is given by:
Here
Total teachers = 57+19 = 76
First-year teachers = 57
So,
Hence, 75% of the teachers were first-year teachers
Keywords: Percentage, Percent
Learn more about percentage at:
#LearnwithBrainly
Answer:
Z = = 1.6
we reject the Null hypothesis
Step-by-step explanation:
The correct test statistic
Assume :
Null Hypothesis : H_0 : p = 0.08
Alternative hypothesis : H_a : p ≠ 0.08
p = proportion of residents that are unemployed
x = unemployed residents = 22
n = sample size = 200
To get the sample of the population that is unemployed we use this equation
= 22 / 200 = 0.11
now we apply the test of of significance of single proportion
= Z =
therefore Z = = 1.6
Therefore we reject the Null hypothesis
The numbers -4 and 4 have a sum of zero.
Why?
-4 + 4 = 0.
4 + -4 = 0.
<em><u>Any Questions? Comment Below!</u></em>
<u><em>-AnonymousGiantsFan</em></u>