Answer:
i believe the answer is y =5
(13)^2 = (12)^2 +( y)^2
169= 144 + y^2
169-144= y^2
25= y^2
5 = y
The answer is 9
36/4=9
63/7=9
108/12=9
315/35=9
Answer:
5%
Step-by-step explanation:
This is a significance test for a mean.
The 2 hypothesis here will be:
To determine the z-score of the error in the means you have to use this formula:
This mean that if the z score of a significance level is less than 1.897 the hypothesis that μ>2,200 is suggested.
10% -> z= 1.28
5% -> z = 1.645
1% -> z = 2.33
The most restrictive level of significance is 5%
Answer:
yes
Step-by-step explanation:
because the lines show that those two sides are congruent, and because there are two congruent sides, then the third has to be the same to connect the triangles