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jok3333 [9.3K]
3 years ago
14

Find the valid value(s) for x: x2 +5x+6 = 1 x+3

Mathematics
1 answer:
-BARSIC- [3]3 years ago
6 0

Answer:

x=-1

Step-by-step explanation:

x+3≠0

x≠-3

x²+5x+6=x+3

x²+5x+6-x-3=0

x²+4x+3=0

x²+x+3x+3=0

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

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

x+3≠ 0

so x+1=0

x=-1

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Ksenya-84 [330]

Answer:

slope = -5/1

y-intercept = (0, -34)

Step-by-step explanation:

slope m = change in y ÷ change in x

= (-9 - -4) ÷ (-5 - -6)

= -5 ÷ 1

= -5/1

y = mx + b  ⇒  y = -5x + b

substitute one of the points

-4 = (-5 x -6) + b

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Therefore, y-intercept = (0, -34)

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Solve (x - 5)^2 = 3.
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Which of the following lists is in order from smallest to largest? 1.4, 1/4 ,14% 1/4 , 14%, 1.4 14%, 1/4 , 1.4 1.4, 14%, 1/4
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2 years ago
there are 36 capenters in a crew. Ona certain day,29 were present .What percent showed up for work?[round to the nearest tenth
aliina [53]

Answer:


Step-by-step explanation:

We assume, that the number 36 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 36, so we can write it down as 100%=36.

4. We know, that x% equals 29 of the output value, so we can write it down as x%=29.

5. Now we have two simple equations:

1) 100%=36

2) x%=29

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%=36/29

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


7. Solution for 29 is what percent of 36


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(100/x)*x=(36/29)*x - we multiply both sides of the equation by x

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x=80.5555555556


now we have:

29 is 80.5555555556% of 36 to the nearest tenth is 81%

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3 years ago
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