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loris [4]
4 years ago
10

Does x=3/y show direct variation ​

Mathematics
1 answer:
Nat2105 [25]4 years ago
5 0

No it does not. when solved you should get y=3/x, meaning it shows inverse variation.

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Consider the radical equation √c+22 = c + 2.
dimulka [17.4K]

First square both sides to get:

c + 22 = (c + 2)^2

or

c + 22 = c^2 + 4c + 4

Move the terms on the left side to the right side:

c^2 + 3c - 18 = 0

Factor to get:

(c + 6) * (c - 3) = 0.

The solutions are c = -6 and c = 3.

Check to see if these answers work by plugging them into the original equation:

c = -6:

sqrt (-6 + 22) ?= -6 + 2

But, -6 + 2 is a negative number, and you can't get a negative from a square root. So, -6 is extraneous.

c = 3:

sqrt (3 + 22) ?= 3 + 2

5 = 5. So, 3 works.

The answer is: B

7 0
3 years ago
Ramauri is thinking of a mystery number. He cuts it in half then takes away 9. The result is -5. What is the mystery number
MaRussiya [10]

Answer:

8

Step-by-step explanation:

mystery number= x

he divdes x by 2 and then subtracts 9 and gets -5. reverse the order to find x.

-5+9 which is 4 times 2 which is 8. x is 8

7 0
3 years ago
Express each of the following as a rational number and represent them on the same number line :1/4 0.75 and -3
neonofarm [45]

Answer:

Step-by-step explanation:

1/4

0.75= 75/100=3/4

-3=-12/4

<h3 />

7 0
3 years ago
An object in a simulation accelerates
notsponge [240]

Observe the graph below. This graph represents the scenario.

The question is ill formated, the complete question is

In a simulation, a moving object accelerates from rest to 4 meters per second in 2 seconds. For the following three seconds, it increases linearly until it reaches a speed of 10 meters per second. Following three seconds at that speed (acceleration = 0), the item progressively decelerates until it comes to rest two seconds later. Draw the graph of this scenario for 10 seconds?

I'll describe how the graph may show.

It will move diagonally upward from time 0 to 2 seconds until it reaches the y axis at a speed of 4 m/s.

Then, from 2 to 5, the position will move up diagonally until it reaches the y axis at a speed of 10 m/s.

The next 5 to 8 seconds will be horizontal.

After that, it will descend diagonally.

Observe the graph below. This graph represents the scenario.

Learn more about Acceleration here-

brainly.com/question/21509870

#SPJ10

5 0
2 years ago
on Monday 209 students went on a trip to the zoo. all 4 buses where filled and 9 students had to travel in cars. how many studen
Juli2301 [7.4K]

Answer:

Step-by-step explanation:

7 0
3 years ago
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