15.24 cm rounded to 15.2 cm
So the first thing to do is get two points. Lets start easy lets plug in 0 for x

We get the point (0, 1).
Now plug in 2 for x

So the two points are (0, 1) and (2, 5)
Now from those two points draw a straight line
Answer:
380
Step-by-step explanation:
The surface of a square pyramid is made up of a single square in the center, and four triangles on the sides. The square's area is 10*10=100, while the area of each of the triangles is 10*14/2=70. Multiplying this by the 4 triangles, you get 280. Adding them together, you get a total of 380 square meters. Hope this helps!
Answer:
--- The third quartile
-- Variance
Step-by-step explanation:
Given
-- First quartile
--- Median
--- Mean
--- Coefficient of skewness
Solving (9): The third quartile 
This is calculated from

So, we have:

Cross Multiply

Open bracket

Collect like terms


Divide both sides -1.38

--- approximated
Solving (b): The variance
First, calculate the standard deviation from:


So:


Make SD the subject






So, the variance is:

