Answer:
One piece of fabric: 10 x 6, or 60.
If one triangle is 15, she can cut 4 triangles from each piece of fabric.
If she has 24 pieces of fabric, she can cut 4 x 24, or 96 triangle patches.
Let me know if this helps!
The side length is the square root of the area, so is ...
... √(25/16 ft²) = (√25)/(√16) ft = 5/4 ft
Answer:

Step-by-step explanation:
From the question we are told that:
Sample size 157
Sample mean



Generally the equation for Standard deviation is mathematically given by



Therefore



The first question would be A and Cis the answer for the second question!!