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Natalija [7]
4 years ago
8

Which equation has a solution of x = 13?

Mathematics
2 answers:
zalisa [80]4 years ago
6 0

Answer:

(B) x-10=3

Work:

x   -  10       =         3

     +10               +10

x                 =         13

Nezavi [6.7K]4 years ago
4 0

Answer:

x-10 = 3

Step-by-step explanation:

13- 10 = 3

x=13

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Coordinates are the dots on a coordinate plane. They tell you precisely the location of something. They are measured by the x and y axis. They can be either positive or negative. I hope this helped!<span />
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Sandy can spend 235 for a birthday party it will cost $10 per person for food $20 for the decorations and $45 for the music from
yaroslaw [1]

Answer:

235-65=170.

170/10=17.

She can invite 17 people

Step-by-step explanation:

5 0
4 years ago
Find the equation of the line using the point-slope formula. Write the final equation using slope-intercept form. (1,2) with a s
Naily [24]

Answer:

y-2=\displaystyle-\frac{6}{7}(x-1)

or

y=\displaystyle-\frac{6}{7}x+\frac{20}{7}

Step-by-step explanation:

Hi there!

Point-slope form: y-y_1=m(x-x_1) where <em>m</em> is the slope and (x_1,y_1) is a point that falls on the line

Plug in the slope, -6/7, and the given point, (1,2):

y-2=\displaystyle-\frac{6}{7}(x-1)

To write the equation in slope-intercept form, isolate y:

y-2=\displaystyle-\frac{6}{7}(x-1)\\\\y-2=\displaystyle-\frac{6}{7}x+\frac{6}{7}\\\\y=\displaystyle-\frac{6}{7}x+\frac{6}{7}+2\\\\y=\displaystyle-\frac{6}{7}x+\frac{20}{7}

I hope this helps!

5 0
3 years ago
Consider the surface defined by the equation x3 + y3 + z3 = 3xyz. Use implicit differ- ∂z entiation to find ∂x. (Note z is not a
Aloiza [94]

Answer:    

   \frac{∂z}{∂x}=\frac{(3yz-3x^{2})}{3z^{2} -3xy}

Step-by-step explanation:

Given equation is x^{3}+y^{3}+z^{3}=3xyz ………………(1)

we use derivative formula \frac{d}{dx}(x^{n})  = n x^{n-1}

\frac{d}{dx}(x^{3)}  = 3 x^{2}

\frac{d}{dx}(z^{3)}  = 3 z^{2}

And also apply 'u v' formula

\frac{d}{dx}(uv})  = u\frac{d}{dx}(v)+v\frac{d}{dx}(u)

Differentiating  equation (1) partially with respective to 'x' , we treated 'y' as constant.

(3x^{2} +0+3z^{2}\frac{∂z}{∂x}) =3y(x\frac{∂z}{∂x}+z(1))   ( here y treated as constant so the derivative of constant function is zero in addition but in multiplication the constant is keep as like 'y').

on simplification , we get

(3x^{2} +0+3z^{2}\frac{∂z}{∂x}) =(3yx\frac{∂z}{∂x}+3yz)

again simplification, we get

3z^{2}\frac{∂z}{∂x}- 3yx\frac{∂z}{∂x}=3yz-3x^{2}

taking common '\frac{∂z}{∂x} on left on side , we get

(3z^{2}- 3yx)\frac{∂z}{∂x}=3yz-3x^{2}

dividing '(3z^{2}- 3yx) on both sides, we get

\frac{∂z}{∂x}=\frac{(3yz-3x^{2})}{3z^{2} -3xy}

<u>Final answer</u>:-

\frac{∂z}{∂x}=\frac{(3yz-3x^{2})}{3z^{2} -3xy}

6 0
3 years ago
Bamboo plants grow rapidly. A bamboo plant is 113 inches tall. Tomorrow it will be 120 inches tall, the next day it will be 127
Allisa [31]
18 x 7 = 126
113 + 126 = 239

239 inches
3 0
3 years ago
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