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allsm [11]
4 years ago
5

What happens when you input -2 into the equation y = 2x

Mathematics
1 answer:
Zanzabum4 years ago
5 0

Answer:

if y is -2, your answer is x = -1

if x is -2, your answer is y = -4

Step-by-step explanation:

If x is -2,

y = 2 (-2)

y = -4

<em><u>But</u></em>

If y is -2

-2 = 2x

x = -2/2

x = -1

If you are satisfied with my answer please make it the brainliest.

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A rectangular card has an area of 120 over 1\4 square inches. The card is 6 over 1\2 inches wide. How long is the card???? if u
Anika [276]
The area is 120/(1/4) or 120 x 4 or 480 square inches
the width is 6/(1/2) or 6 x 2 or 12 inches
to find the length, divide the area by the width
480/12= 40
40 inches
Hope this helps :)

7 0
3 years ago
At a high school, 14% of all students play a sport and 9% of all students play a
olga2289 [7]

Answer:

0.643

Step-by-step explanation:

Let, s = play a sport

c = participate in a club

P(s) = 0.14

P(s n c) = 0.09

probability that a student participates in

a club given that they also play a sport = P(c | s)

P(c | s) = P(c n s) / P(s)

P(c | s) = 0.09 / 0.14

P(c | s) = 0.64285

= 0.643

7 0
3 years ago
Rework problem 15 in section 2 of Chapter 5 of your textbook about the growing suburb and the declining city using the following
bazaltina [42]

Answer:

16 years.

Step-by-step explanation:

Please consider the complete question.

Assume that the suburb has a population of 686,000 and is growing at a rate of 4000 per year. Assume that the city has a population of 942,000 and is declining at a rate of 12000 per year. In how many years will the populations of the suburb and the city be equal?

Let x represent number of years.  

Growth function would be G(x)=4000x+686,000 and decline function would be D(x)=942,000-12,000x.

To find the time when both populations will be equal, we will equate both functions as:

4000x+686,000=942,000-12,000x

4000x+12,000x+686,000=942,000

16,000x+686,000=942,000

16,000x=942,000-686,000

16,000x=256,000

\frac{16,000x}{16,000}=\frac{256,000}{16,000}

x=16

Therefore, in 16 years the populations of the suburb and the city will be equal.

6 0
3 years ago
Solve the following system of equations by graphing and select the correct answer below:
LUCKY_DIMON [66]
The only answer is x = 4, y = 2, 
2(4) + 6(2) = 20
3(4) _ 2(2) = 8
the graph is so easy, please try!!
5 0
4 years ago
Read 2 more answers
Can you help me with this question??
Charra [1.4K]

9514 1404 393

Answer:

  about 1.4288993 radians

Step-by-step explanation:

The angle to terminal arm A is ...

  ∠A = arctan((-4/5)/(-3/5)) ≈ 4.0688879 radians

The angle to terminal arm B is ...

  ∠B = arctan((-1/√2)/(1/√2)) ≈ 5.4977871 radians

Then the angle between the arms is ...

  5.4977871 -4.0688879 ≈ 1.4288993 . . . radians

4 0
3 years ago
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