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saw5 [17]
3 years ago
7

Find the perimeter of triangle PQR. Round your answer to the nearest tenth.

Mathematics
1 answer:
BabaBlast [244]3 years ago
3 0
We are given the coordinate of the 3 vertices. From these coordinates we can find the length of the sides using the distance formula and the sum of all the sides will be equal to the perimeter of the triangle.

Side PQ = \sqrt{ (6-(-2))^{2}+  (1-1)^{2} }=8

Side QR = \sqrt{ (4-6)^{2}+ (-3-1)^{2} }=4.5

Side RP = \sqrt{ (2-(-4))^{2}+ (-3-1)^{2} }=7.2

So, the perimeter of the triangle will be 8 + 4.5 + 7.2 = 19.7 

You probably misplaced the digits in option A. The correct answer is 19.7 units.
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Necesito encontrar expresiones equivalentes a los valores del 1 al 20 pliss
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Answer and Step-by-step explanation:

Si está buscando una expresión que sea igual a los números del 1 al 20, intente hacer una. Por ejemplo, 2y + 1x = 18 donde y = 9 - x / 2 y x = 18 - 2y. Siempre que la expresión sea igual a menos de 20, ¿no?

Lo siento, no entendí muy bien la pregunta, ¡pero espero que esto te haya ayudado! ¡Ten un día maravilloso! <3

**Tenga en cuenta que mi español no es el mejor, lo siento mucho, hablo principalmente inglés. Mi mal, con suerte, me puedes entender.**

4 0
3 years ago
What's is an equation of the line that passes through the point(-3,-1) and is perpendicular to the line x-2y=6
katrin2010 [14]

Answer:

y+1=-2(x+3)

Step-by-step explanation:

Slope is negative reciprocal when two lines are perpendicular

m1=1/2 therefore m2=-2

The equation of the line in point-slope form is given as

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Here m=-2 and (x1, y1)=(-3, -1)

Therefore,

y+1=-2(x+3)

6 0
3 years ago
A box contains four equal sized cards labeled 1, 3,5, and 7. Tim will select one card from the bow. What is the probability that
Zielflug [23.3K]

Answer: The probability is zero.

Step-by-step explanation:

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Now, the probability that Tim selects a card labeled with a 4 is equal to the number of cards labeled with a 4, divided the total number of cards.

We do not have cards labeled with a 4, so the probability is:

p = 0/4 = 0

because we do not have any card labeled with a 4, the probability of selecting one at random is equal to zero.

8 0
3 years ago
3r+2/4=2 solve for r​
sladkih [1.3K]

Answer: r=1/2

Step-by-step explanation:        

5 0
3 years ago
A grocery store plans to use 75% of its area for food and beverages. If the grocery store has an area of 1,600 m², what is the a
zaharov [31]

Answer:

It's either 400 or 1,200.

Step-by-step explanation:

Other people are saying 400, I got 1,200 by multiplying 1,600 to 0.75 which gave me that answer. I do not know how other people got 400.

4 0
3 years ago
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