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andrew-mc [135]
2 years ago
9

Carl wants to give away 13 of his baseball card collection. He is going to divide it among his 3 friends. What fraction of the o

riginal collection will each of Carl's friends receive?
Mathematics
1 answer:
Alex787 [66]2 years ago
8 0
Just do 13/3 to get the answer and turn that into a fraction
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5x^2-2x=2<br>help plsmmm​
Yuki888 [10]

Answer:

Presumably you're solving for x here?  Without further information we'll assume that.

With that in mind, x is approximately equal to 0.86 and -0.46

Step-by-step explanation:

Let's start by putting it in the usual ax² + bx + c format.

5x^2- 2x = 2\\5x^2 - 2x - 2 = 0\\

let's solve it.  First we'll multiply both sides by five, making the first term a perfect square:

25x^2 - 10x - 10 = 0\\

Now we'll add 11 to both sides:

25x^2 - 10x + 1 = 11\\

Which makes the left side a perfect square:

(5x - 1)^2 = 11

And now we can solve for x:

(5x - 1)^2 = 11\\\\5x - 1 =  \sqrt{11} \\\\5x = 1 + \sqrt{11}\\\\x = \frac{1 + \sqrt{11}}{5}

Note that there's no apparent way of drawing the ± symbol when editing equations, so take that + sign as actually being ±.

That gives us two answers:

x = \frac{1 + \sqrt{11}}{5}\\\\x \approx \frac{1 + 3.32}5\\\\x \approx \frac{4.32}5\\\\x \approx 0.86             x = \frac{1 - \sqrt{11}}{5}\\\\x \approx \frac{1 - 3.32}5\\\\x \approx \frac{-2.32}5\\\\x \approx -0.46

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2 years ago
Jason needs to run 30 laps before basketball practice. His coach makes a deal with the team that on Friday’s they only need to c
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Answer:

a little bit less than 30

Step-by-step explanation:

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Use two ordered pairs to write a prediction equation.
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Answer:

left nut, right nut

Step-by-step explanation:

that makes an ordered pair

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A student is working on a project for which he records the revolutions per minute (rpm) for a small electric motor as he increas
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Answer:

See below ↓

Step-by-step explanation:

The relation is :

  • Let y = Motor Speed and x = Voltage
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<u>Title</u> : Variation of Motor Speed with Applied Voltage

<u>x-axis label</u> : Voltage (volt)

<u>y-axis label</u> : Motor speed (rpm)

As it constantly varies with a value of x and they are not isolated data points, they should be connected with a line.

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Three of the choices are ways to express 0.50. Which is NOT?
borishaifa [10]

Answer:

5/100

Step-by-step explanation:

5 over 100 is 5%, while the other options are 50%

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