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Inessa05 [86]
2 years ago
14

Pls help Equation = x2-2x-3=0

Mathematics
1 answer:
vagabundo [1.1K]2 years ago
5 0

Answer:

x^2 - 2x - 15 = 0.

Step-by-step explanation:

x^2 - 2x - 3 = 0

(x - 3)(x + 1) = 0

So alpha and beta are -1 and 3.

So the roots of the required equation are 2(-1)-1 and 2(3) - 1

= -3, 5.

So the equation is

(x - 5)(x + 3) = 0

-that is x^2 - 2x - 15 = 0

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erik [133]
Based on this sample, 100 toys will not meet standards.

There is 1 value that is 75 or lower in this simulation.  This makes the experimental probability 1/10.  1/10(1000) = 100 toys for the month.
3 0
3 years ago
This problem I can’t seem to figure out
allochka39001 [22]

Answer:

39 touchdowns and 13 fieldgoals

Step-by-step explanation:

Let t= touchdowns

f = fieldgoals

They scored 35 times

t+f = 35

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Multiply the first equation by-7

-7t -7f =-245

Add this to the second equation

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----------------------

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Divide by -4

-4f/-4 = -52/-4

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Now we can find t

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Subtract 13 from each side

t+13-13 =52-13

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6 0
2 years ago
Find the value of x
devlian [24]
X=20
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-20.         -20
180=7x+x
180=8x
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5 0
3 years ago
A can of hairspray has a
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Answer:

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7 0
2 years ago
Help Please!!!!!!!!​
VladimirAG [237]

Answer:

$14.50 I'm positive.

Step-by-step explanation:

Rented one time shoes: $2.75

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2 orders of nachos is $3.50

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HOPE THIS HELPED :)

3 0
2 years ago
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