Answer:
b. 1.15
Step-by-step explanation:
The z statistics is given by:

In which X is the found proportion, p is the expected proportion, and s, which is the standard error is 
Out of 53 teachers who replied to the survey, 13 claim they are satisfied with their job.
This means that 
She find that the proportion of satisfied teachers nationally is 18.4%.
This means that 
Standard error:
p = 0.184, n = 53.
So

Z-statistic:



The correct answer is:
b. 1.15
Answer:
The area of triangle is 
Step-by-step explanation:
It is given that AB=19cm, BC=12cm and ∠B=105°
Now, Area of the triangle ABC=
=
=
=
Thus, the area of triangle is 
MARK BRAINLIEST!!
So your solution is.
=−5
Ok
First use the sine rule to find one value
b / sin B = c / sin C
20.2 / sin B = 18.3 / sin 38
sinB = 20.2 * sin 38 / 18.3 = 0.6796
m < B = 42.8 degrees
the other possible measure is 180 - 42.8 = 137.2 degrees
Answer:
17.5m
Step-by-step explanation:
958.2 minus 23.9= 934.3
934.3 minus 951.8= - 17.5
the negative doesnt matter so you can take that away so the answer is 17.5