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Gelneren [198K]

3 years ago

8

Please please help me with these 2 questions

1 answer:

Novay_Z [31]3 years ago

6 0

For number 4 the equation is 12 divided by 3/4 and when you solve that you get 16 which is the answer. For question 5 the equation would be 40 5/8 divided by 4. The first to do this is make 40 5/8 an improper fraction which is 325/8. Then you would flip the 4/1(this is the same thing as 4) to get 1/4. Then you would multiply 325/8 * 4 to get 325/32 and as a mixed number 10 5/32 which is the answer.

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What is the perimeter of the triangle? Round to the nearest tenth.

Cerrena [4.2K]

Answer: 19.8 Units

Step-by-step explanation:

The triangle is shown in the attached figure, and have three vertices: $AB$ , $AC$ and $BC$ .

Each vertice represents a point in the cartesian plane and the length of each side of the triangle is the modulus of each vector.

In this sense, the modulus $m$ is calculated as shown:

$m=\sqrt{(x_{2}-x_{1})^{2} + (y_{2}-y_{1})^{2}}$

Hence, for each vector:

$AB=\sqrt{(-2-3)^{2} + (3-0)^{2}}=\sqrt{34}$

$AC=\sqrt{(-2-(4))^{2} + (3-(-3))^{2}}=\sqrt{40}$

$BC=\sqrt{(-4-3)^{2} + (-3-0)^{2}}=\sqrt{58}$

Now, the perimeter of a triangle is the sum of its three sides:

$AB+AC+BC=\sqrt{34} + \sqrt{40} + \sqrt{58}$

Finally:

$AB+AC+BC=19.77 \approx 19.8$

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3 years ago

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Mamont248 [21]

Answer:

Lm

Step-by-step explanation:

average = (sum of numbers)/(number of numbers)

Solve the equation for "sum of numbers":

sum of numbers = average * number of numbers

sum of numbers = m * L

sum of numbers = Lm

Answer: B) Lm

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Answer:

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Step-by-step explanation:

since abs value changes it to positive it would be

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Answer:

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