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Whitepunk [10]
3 years ago
5

The length of a social media interaction is normally distributed with a mean of three minutes and a standard deviation of 0.4 mi

nutes. what is the probability that an interaction last longer than four minutes
Mathematics
1 answer:
alexandr1967 [171]3 years ago
3 0
It depends on Y and x cause school said so 
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A triangle in the xy-coordinate plane is formed by the points (3, 5), (− 1, 5) , and (3,− 6) . What is the perimeter and area of
kati45 [8]

Answer:

Therefore, the perimeter of the triangle is 26.7 units and the area is 22 square units.

Step-by-step explanation:

Given the vertices of a triangle as: A(3, 5), B(− 1, 5), and C(3,− 6)

Since A and B are on the same y-coordinate, we have that:

AB = 3-(-1)=4 Units

Since A and C are on the same x-coordinate, we have that:

AC=5-(-6)=11 Units

Next, we determine the distance BC using the distance formula.

Given: B(− 1, 5), and C(3,− 6)

BC=\sqrt{(3-(-1))^2+(-6-5)^2}\\= \sqrt{(4)^2+(-11)^2}=\sqrt{137}$ Units

Therefore:

Perimeter of the Triangle

= 4+11+\sqrt{137}\\ =15+\sqrt{137}$ Units\\=26.7 Units

On plotting the triangle, it forms a right triangle such that the:

Base = 4 Units

Height = 11 Units

Therefore:

Area of a triangle =\dfrac12 *Base*Height

Therefore:

Area of the Triangle = 0.5 X 4 X 11

=22 Square Units.

Therefore, the perimeter of the triangle is 26.7 units and the area is 22 square units.

5 0
3 years ago
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