Answer:
Well i mean i know i am is college but i have not learned it yet. sorry :(
Step-by-step explanation:
Answer:
Area = 27√3/4 square units
Step-by-step explanation:
Since the shape is an equilateral triangle, all the sides will be equal
Area of the triangle = 1/2 * base * height
Get the height
(3√3)² = h²+(3√3/2)²
27 = h² + (27/4)
h²= 27 - 27/4
h² = 27 - 6.75
h² = 20.25
h = √2025/100
h = 45/10
Area = 1/2 * 3√3 * 45/10
Area = 135√3/20
Area = 27√3/4 square units
Answer:
V = 9 in^3
Step-by-step explanation
Comment
The formula for a Pyramid of any B is V = B * h / 3. You have to be able to calculate the Base or just be given in it.
In this case the Base is a triangle. So the first thing needed is the area of the base.
<em>Base</em>
Area_triangle = base length * height / 2
Neither the Base length nor the height need to be the same as the B and h used for the volume of the Pyramid
<em>Givens</em>
b = 4 inches
h = 1.5 inches
Area_triangle = 4 * 1.5 / 2
Area_triangle = 2 * 1.5
Area_triangle = 3 inches^2
Solution
Base (triangle) Area = 3
h = 9
V = B * h / 3
V = 3 * 9 / 3
V = 9 cubic inches
Answer V = 9 in^3
When the person is less than 18 years old, out of 265 persons, 20 has job and 245 do not have job.
The probability is defined as .
Consider the first column only.
The probability that a randomly selected person surveyed has job is