Help with some math please!!!!!
1 answer:
ANSWER
B. 12
EXPLANATION
The given triangle is isosceles, because two of the arms are equal.
The angles directly under these two arms and the base are equal.
Therefore the three angles of the isosceles triangle are
84°, 4x°,4x°
The sum of these angles is 180°
Group similar terms,
Divide both sides by 8
The correct choice is B.
You might be interested in
Answer:
Step-by-step explanation:
The missing parameters are:
--- population
--- population mean
-- population standard deviation
Required
First, calculate the sample standard deviation
Next, calculate the sample mean
So:
So, we have:
Calculate the z score
So, we have:
From the z table
So: