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ValentinkaMS [17]
3 years ago
13

Solve and describe the steps used to find x for the equation 2(x + 4) – 10 = 12

Mathematics
1 answer:
Lorico [155]3 years ago
3 0
Well,  you want to find the value of x.  
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Solve the equation for all real solutions in simplest form.<br> z^2 - 12z +9= -3
Mars2501 [29]

Answer:

Solving the equation for all real solutions in simplest form.

z^2 - 12z +9= -3 we get \mathbf{z=10.9\: or\: z=1.1}

Step-by-step explanation:

We need to solve the equation for all real solutions in simplest form.

z^2 - 12z +9= -3

First simplifying the equation:

z^2 - 12z +9+3= -3+3\\z^2 - 12z +12= 0

Now, we can solve the equation using quadratic formula:

z=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

we have a = 1, b=-12 and c=12

Putting values in formula and finding values of x

z=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\z=\frac{-(-12)\pm\sqrt{(-12)^2-4(1)(12)}}{2(1)}\\z=\frac{12\pm\sqrt{144-48}}{2}\\z=\frac{12\pm\sqrt{96}}{2}\\z=\frac{12\pm9.8}{2}\\z=\frac{12+9.8}{2}\:or\:z=\frac{12-9.8}{2}\\z=10.9\:or\:z=1.1

So, we get value of z: z=10.9 or z=1.1

Solving the equation for all real solutions in simplest form.

z^2 - 12z +9= -3 we get \mathbf{z=10.9\: or\: z=1.1}

3 0
3 years ago
Andre runs at a constant speed, 5 meters every 2 seconds. how long does it take him to run 91 meters at this rate
kap26 [50]

Answer: 36.4 seconds

(Unitary method)

5 meters take 2 seconds

1 meter takes 2/5 seconds

91 meter takes 2/5 * 91 --> 36.4 seconds

5 0
3 years ago
Can someone please help me, I am very confused!!
inessss [21]

Answer:

a. 535

b. 565

c. 468

d. 1115

Step-by-step explanation:

9624/18 = 534.66666666.... rounded = 535

12,085/26 = 465 (rounded)

7490/16 = 468.125 rounded = 468

18,954/17 = 1115 (rounded)

You divide by the price of one ticket since then, you can find the amount of people whom bought the ticket.

7 0
2 years ago
Read 2 more answers
PLEASE HELP ASAP:(((!!!
SCORPION-xisa [38]
X=0 Is the equation for the graph listed above.

B.
7 0
3 years ago
Read 2 more answers
Factories:<br><br><img src="https://tex.z-dn.net/?f=%20%7B6x%7D%5E%7B2%7D%20%20%2B%204xy%20%20-%203x%20-%202y" id="TexFormula1"
Arada [10]

Answer:

[tex] {6x}^{2} + 4xy - 3x - 2y[/tex]

6x²+4xy-3x-2y

2x(3x+2y)-1(3x+2y)

(3x+2y)(2x-1) is your answer

8 0
3 years ago
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