The perimeter P of a triangle is equal to the sum of the lengths of sides a, b, and c.

Mathematics

1 answer:

SVETLANKA909090 [29]3 years ago

6 0

Answer:

The sentence is true.

Step-by-step explanation:

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Citrus2011 [14]

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3 years ago

Given the points K(-2;5), L(1,3) and M(-5; 2p). Calculate the value

Advocard [28]

The product of the perpendicular lines is a negative one. Then the value of p will be negative 3.75.

<h3>What is coordinate geometry?</h3>

Coordinate geometry is the study of geometry using the points in space. Using this, it is possible to find the distance between the points, the dividing line is m:n ratio, finding the mid-point of the line, etc.

Given the points K(-2,5), L(1,3) and M(-5, 2p).

If KL is perpendicular to LM. Then we have

The slope of KL will be

KL = (1+2)/(3-5)

KL = -1.5

The slope of LM will be

LM = (1+6)/(3-2p)

LM = 7/(3-2p)

We know the product of the perpendicular lines is a negative one.

KL x ML = -1

-1.5 x 7/(3-2p) = -1

-10.5 = -3 + 2p

2p = -7.5

p = -3.75

More about the coordinate geometry link is given below.

brainly.com/question/1601567

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2 years ago

A six-sided die is rolled two times. What is the theoretical fractional probability that the first number is even and the second

Nostrana [21]

Answer:

The theoretical probability that the first number is even and the second number is odd is $\frac{1}{4}$ .

Step-by-step explanation:

Since each dice has six sides, and there are two die, the total amount of different outcomes are $6^2$ or 36. The probability of getting an even number on the first roll is $\frac{3}{6}$ or $\frac{1}{2}$ , and the probability of getting an odd number on the second roll is also $\frac{3}{6}$ or $\frac{1}{2}$ , so the probability of getting an even number on the first roll and an odd number on the second roll is $\frac{1}{2} * \frac{1}{2} = \frac{1}{4}$ .