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ANEK [815]
3 years ago
10

Nathaniel is using the quadratic formula to solve 0 = x2 + 5x - 6. His steps are shown below. What are the solutions to the equa

tion? x = –1, 6 x = –6, 1 x = –22, 27 x = –27, 22 Mark this and return
Mathematics
2 answers:
Bad White [126]3 years ago
7 0

Answer: Second Option is correct.

Step-by-step explanation:

Since we have given that

x^2+5x-6=0

We need to calculate the solutions to the equation :

We will use "Split the middle terms" :

x^2+5x-6=0\\\\x^2+6x-1x-6=0\\\\x(x+6)-1(x+6)=0\\\\(x+6)(x-1)=0\\\\x+6=0;x-1=0\\\\x=-6,1

So, Second Option is correct.

Elena L [17]3 years ago
5 0
The quadratic equation is;
x²+5x-6 = 0
x²+6x-x-6 = 0
x(x+6)-1(x+6) = 0
(x+6)(x-1) = 0
So,
x+6 = 0 and x-1 = 0
x=-6 and x = 1
Thus the answer is
x = -6,1
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3 years ago
483.6 is what percent of 180
liraira [26]

Answer:

We assume, that the number 180 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 100% equals 180, so we can write it down as 100%=180.

4. We know, that x% equals 483.6 of the output value, so we can write it down as x%=483.6.

5. Now we have two simple equations:

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where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

100%/x%=180/483.6

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 483.6 is what percent of 180

100%/x%=180/483.6

(100/x)*x=(180/483.6)*x       - we multiply both sides of the equation by x

100=0.37220843672457*x       - we divide both sides of the equation by (0.37220843672457) to get x

100/0.37220843672457=x

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now we have:

483.6 is 268.66666666667% of 180

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3 years ago
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