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nadya68 [22]
2 years ago
5

How many real solutions exist for this system of equations?

Mathematics
1 answer:
Rom4ik [11]2 years ago
7 0

Answer:

One

Step-by-step explanation:

Set each equations equal to each other

{x}^{2}  + 4 = 4x

{x}^{2}  - 4x + 4

Find the discrimant.

{ - 4 {}^{2} - 4(1)(4) } = 0

This means there is one real solution. Since the discramnt equal 0.

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Will this happen in avenger 4?
Marizza181 [45]

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4 0
3 years ago
Write the equation in slope- intercept form
hodyreva [135]

Answer:

1. y=3x-1

Step-by-step explanation:

y=mx+b

y=output

m=slope

x=input

b=y-intercept

6 0
3 years ago
How would you also do this??
Vesna [10]

4(5x + 7) = 128

First, I'd do distributive property and get:

20x + 28 = 128

Then, subtract 28 from each side.

20x = 100

Next, I'd divide 100 by 20 = 5

x = 5

4 *(5(5) + 7) = 128

5 * 5 = 25

4 * (25 + 7)

4 * 32 = 128

Therefore, the perimeter = 2l + 2w

l = 4

w = 5x + 7

BUT we know that x = 5

w = 5(5) + 7 = 32

2(4) + 2(32)

8 + 64 = 72

Therefore, the perimeter would be 72 inches.

5 0
3 years ago
What is the solution to the inequality? -3x < 24 
Paraphin [41]

Answer:

x > -8

Step-by-step explanation:

Divide both sides by -3 to get x by itself. Dividing by a negative number will switch the less-than symbol to a greater-than symbol. -3x ÷ -3 = x and 24 ÷ -3 = -8. When you put it all together, you get x > -8

8 0
3 years ago
Ken took 64 minutes to walk 4 miles on flat terrain. If he walked at a constant rate, how long would it take Ken to complete 5 m
Svetlanka [38]

Answer: 80 minutes

Step-by-step explanation:in the picture

7 0
3 years ago
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