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nikitadnepr [17]
3 years ago
8

The vertices of triangle DEF are D(7, 3), E(4, -3), and F(10, -3). Write a paragraph proof to prove that triangle DEF is isoscel

es.

Mathematics
2 answers:
kolbaska11 [484]3 years ago
7 0
Proof method: 

1. Calculate the length of each side, DE,DF,EF

2. Compare the length of them, if any pair of them is equal, then it's isosceles.

yanalaym [24]3 years ago
6 0

I am given that the vertices of triangle DEF are D(7, 3), E(4, -3), and F(10, -3). Applying the distance formula to each pair of vertices in the triangle gives the following:

Two of the sides, DE and DF, have the same length. So, by definition of an isosceles triangle, triangle DEF is isosceles.

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Bonjour à tous, pouvez vous m'aider à trouver la réponse pour cette "question ouverte" svp?
AlekseyPX

La solution:

625 cm^2.

Explication étape par étape:

Si la forme est rectangulaire, elle aura la plus grande superficie possible quand la longueur équivaut à la largeur. Pour avoir un périmètre de 100 cm, cela signifie que chaque côté doit faire 25 cm.

La superficie serait alors de 25 cm x 25 cm = 625 cm^2.

8 0
2 years ago
What is the function for the arithmetic sequence 7,9,11,13,15,17
xeze [42]

Answer:


Step-by-step explanation: I would say y=x+2 or 2 because every number that you add 2 to, it gives you the solution which is the second number

Hope this helps!!!!

Please mark Brainliest!!!!!☺


5 0
3 years ago
rodrigo is a salesman who earned a base pay of $38,800 and was paid commission of 14% for each book set he sold. If x represent
adoni [48]

Answer:

rodrigo will be getting be getting 5432 for his pay

Step-by-step explanation:


8 0
3 years ago
Suppose you hit a fly ball with an initial upward velocity of 20 feet per second. Which of the following equations would be a re
baherus [9]
A=g≈-32

v=⌠a dt  since a≈-32

v=-32t+C, where C is the initial velocity, which we are told is 20 ft/s

v=-32t+20

h=⌠v dt

h=-32t^2/2+20t+C, where C is the initial height, so what is a reasonable initial height?  How about 3 ft since we are swinging a bat around maybe our waist level... maybe :P

h=-16t^2+20t+3

Your choices may have made a different assumption about the initial height of course but you did not show your choices, but certainly it will be:

h(t)=-16t^2+20t+hi, where hi is the initial height in feet.

This of course ignores air resistance and flight dynamics of a spinning ball with seams, which will make a significant difference in real life :)
3 0
3 years ago
Read 2 more answers
Mallory makes $10 per hour babysitting and $8 per hour working at the local grocery store. Last week she babysat for 6 hours. He
Aneli [31]
10x6=60 so 180-60=120 and 120 divided by 8 is 15 so the answer is 15 hours
6 0
3 years ago
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