2 years ago

Find the area of a triangle whose vertices have the coordinates (-1,1) (-1,5) (4,1)

1 answer:

7 0

The triangle that forms is a right-angled triangle. To work out the area, you just do the base × height, all divided by 2.

Therefore, you do 5 (the base) × 4 (the height) and you get 20.

Then you divide by 2 to finish the equation and you should find that the total area of the triangle is 10 units² (20 ÷ 2 = 10).

Hope that helps :)

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katrin [286]

Answer:

3.566%

Step-by-step explanation:

The probability formula for a poisson distribution is:

$P( k )=\frac{\lambda^{k}e^{-\lambda}}{k!} \\$

λ is the average of events

e is the euler's number

k is the number of events you want to know the probability

For this :

λ = 8.9 (on average the number of tickets is 8.9 per day)

k = 4 (you need to find the probability that exactly 4 tickets are written per day)

$P( k=4 )=\frac{8.9^{4}e^{-8.9}}{4!}=0,03566 =3.566\%$

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3 years ago

Anika [276]

Answer:

Step-by-step explanation:

hope this helps

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2 years ago

Eduardwww [97]

Is it 25 cm???????.................

3 0

3 years ago

lbvjy [14]

0.057x 10 is equal to .57. All you have to do is move the decimal to the right one time because there is one zero in 10.

8 0

3 years ago

azamat

By the Pythagorean theorem,

$a^{2}+12^{2}=13^{2}\\\\a^{2}+144=169\\\\a^{2}=25\\ \\ a=\boxed{5}$

4 0

2 years ago