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Dmitry [639]
3 years ago
9

Cuatro amigos, Andrés, Diego, Jairo y Luis juegan billar y acuerdan que aquel que pierda deberá duplicar la cantidad de dinero d

e los otros tres. Juegan cuatro partidas y cada uno de ellos pierde una vez, Andrés la primera, Diego la segunda, Jairo la tercera y Luis la cuarta. En ese momento cada uno de ellos tiene $ 32.000 ¿Cuánto dinero tenía cada uno de ellos al iniciar la apuesta?
Mathematics
1 answer:
Cerrena [4.2K]3 years ago
4 0

Answer:

creo que 150

Step-by-step explanation:

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F(x) = 4x² – 17x+3
Svet_ta [14]

Answer:

discriminant: 241

2 real roots

Step-by-step explanation:

The discriminant is the part of the quadratic equation that is under the sqare root

x=(-b±√(b²-4ac))/2a

discriminant: b²-4ac

We also know that a quadratic equation is in the form ax²+bx+c = 0, so we can plug in the values we know from our equation to find the discriminant.

a=4

b=-17

c=3

(-17)^2-4(4)(3)

We also know that if the discriminant

is positive we have 2 real roots

is 0 we have 1 real root aka a repeated real solution

is negative we have no real roots

8 0
3 years ago
Plz helppppppp me qwq
ruslelena [56]

Answer: For the first part

1250 = 150

1525 = 183

1850 = 222

2200 = 264

Step-by-step explanation:

6 0
2 years ago
Drew played video games this morning for 48 minutes. He plans to play 30 minutes again each day for the rest of the week. Which
Lina20 [59]

Answer:

30

Step-by-step explanation:

7 0
3 years ago
Carmen has taken out a loan for $800 to buy a car. She plans to pay back the loan at a rate of $40 per month. Ramona has borrowe
maksim [4K]
B. 20 months.   say 800 divided by 40.  the answer is 20

5 0
3 years ago
Read 2 more answers
I'll mark as brainliest if you get the correct answer WITH step by step explaination.​
elena-s [515]

<em>ANSWER:</em>

value of "a" is: a= -b√3+7+4√3

value of "b" is:  \frac{-a\sqrt{3}+7\sqrt{3} }{y} +4

<em></em>

<em>STEP-BY-STEP EXPLANATION:</em>

<h2><u>how to get the value of "a":</u></h2><h2><u /></h2>

1. <u>(</u>rationalize the denominator)

<u>(2 + √3) </u><u>× (2 + √3)</u> =a + b√3

2. (write the repeated multiplication in exponential form)

<u>(2 + √3)²</u> =a + b√3

3. (use (a + b)² = a² + 2ab + b²  to expand the expression)

<u>4 </u>+ 4√3 + <u>3</u> = a + b√3

4. ( add the numbers)

7 + 4√3 = <u>a</u> + b√3

5. (move the <u>variable</u> to the left-hand side and change its sign. then, move the <u>constants</u> to the right-hand side and change their signs)

<h3><u>-a</u> + 7 + 4√3 = b√3  ⇔ -a = b√3 <u>-7 - 4√3</u></h3>

<u></u>

6. (change the signs on both sides of the equation)

a = -b√3 + 7 + 4√3

<h2><u>how to get the value of "b":</u></h2><h2><u /></h2>

1. (rationalize the denominator. then, use the commutative property to reorder the terms)

(2 + \sqrt{3}) × (2 + \sqrt{3} ) = <u>a + b</u>\sqrt{3}   →  <u>(2 + </u>\sqrt{3}<u>) × (2 +</u>\sqrt{3}<u> )</u> = a + \sqrt{3}b

2. (write the repeated multiplication in exponential form)

<u>(2 + √3)²</u> =a + \sqrt{3}b

3. (use (a + b)² = a² + 2ab + b²  to expand the expression)

<u>4</u> + 4\sqrt{3} + <u>3</u> = a + \sqrt{3}b

4. (add the numbers)

7 + 4 \sqrt{3} = a + \sqrt{3}b

5. (move the expression to the left-hand side and change its sign. then, move the <u>constants</u> to the right-hand side and change their signs)

- \sqrt{3}b + 7  + 4 \sqrt{3} = a  → -\sqrt{3}b = a - 7 - 4\sqrt{3}

6. (divide both sides of the equation by -\sqrt{3})  

b = - \frac{a}{\sqrt{3} }  + \frac{7}{\sqrt{3}} + 4

7. (rationalize the denominator)

b = b=-\frac{a\sqrt{3} }{\s3}} +\frac{7\sqrt{3} }{{3} } +4

8. (write all numerators above the common denominator)

b =  \frac{-a\sqrt{3}+7\sqrt{3} }{y} +4

there you go! I hope this helped. goodluck! :)

7 0
3 years ago
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