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mihalych1998 [28]
2 years ago
8

What is the answer for x. x/2=9

Mathematics
2 answers:
Angelina_Jolie [31]2 years ago
6 0
Hope this helps you!!!!

miv72 [106K]2 years ago
5 0

Hello!

To solve for x, we just multiply both sides of the equation by 2.

x/2=9

x/2(2)=9(2)

x=18

I hope this helps!

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Graph the linear equation find three points that solves the equation 2y=5x+11
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Answer:

<h3>Attachment</h3>

Step-by-step explanation:

Convert to the slope-intercept form (<em>y = mx + b</em>):

2y=5x+11             <em>divide both sides by 2</em>

\dfrac{2y}{2}=\dfrac{5x}{2}+\dfrac{11}{2}\\\\y=\dfrac{5}{2}x+\dfrac{11}{2}

We choose any three x values ​​and calculate the y value:

for x = -1

y=\dfrac{5}{2}(-1)+\dfrac{11}{2}=-\dfrac{5}{2}+\dfrac{11}{2}=\dfrac{6}{2}=3\to A(-1,\ 3)

for x = 1

y=\dfrac{5}{2}(1)+\dfrac{11}{2}=\dfrac{5}{2}+\dfrac{11}{2}=\dfrac{16}{2}=8\to B(1,\ 8)

for x = -3

y=\dfrac{5}{2}(-3)+\dfrac{11}{2}=-\dfrac{15}{2}+\dfrac{11}{2}=-\dfrac{4}{2}=-2\to C(-3,\ -2)

Mark the points on the coordinate plane and draw a line through the given points.

6 0
3 years ago
I need help with this problem
Vitek1552 [10]

Answer:

X=13

Step-by-step explanation:

So if ΔABC ≅ ΔDEC, then that means that ∠B is ≅ ∠E. Therefore you would write the equation 3x=6x-39 and solve for X to get 13.

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Yanka [14]

Answer:

f^{-1}(x)=\pm\sqrt{x+16}

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To find the inverse of this function, temporarily the f(x) with a y (or whatever else you want) and then solve for the x.

y=x^2-16\\y+16=x^2\\x=\pm\sqrt{y+16}

Now, you can swap the variables again and write the function.

f^{-1}(x)=\pm\sqrt{x+16}

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What is 4× 10 in standard notation
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antoniya [11.8K]

Answer:

Step-by-step explanation:

x+y=a

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b=x−y

Good luck honey!

8 0
3 years ago
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