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3 years ago

5x+3x-6=6x+12 what is the answer

Mathematics

1 answer:

marin [14]3 years ago

3 0

Answer:

x=9

Step-by-step explanation:

1. Combine like terms

2. Add 6 to both sides

3. Simplify

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What is the distance between (6, 1) and (1, -9)?

AVprozaik [17]

<u>A</u><u>n</u><u>s</u><u>w</u><u>e</u><u>r</u><u>:</u><u> </u>√15 units

Step-by-step explanation:

Let (6,1) be (x^1,y^1) and (1,-9) be (x^2,y^2) .

As we know ,

Distance(D) = √(x^1-x^2) +(y^1-y^2)

Now,

D= √(x^1-x^2) +(y^1-y^2)

= √(6-1) +(1+9)

= √5+10

= √15 units

: Therefore the distance between (6,1) and (1,-9) is √15 units.

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3 years ago

Keith is planning to drive from Los Angeles to San Francisco. He measured a distance of 5 inches between the two cities on the n

WARRIOR [948]

this means that one inch on the map is equal to 80 miles in real life. in order to find the actual distance between la and san fran we need to multiply 80×5 because one inch is 80 miles and there are 5 inches. our answer is 400 miles. so this means that in the real world la is 400 miles away from san fran. hope this helps bb :)

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3 years ago

Read 2 more answers

Sin(x2 y2 da r , where r is the region in the first quadrant between the circles with center the origin and radii 1 and 5

Rudik [331]

I assume there's a plus sign missing above...

Convert to polar coordinates, using

$\begin{cases}x(r,\theta)=r\cos\theta\\y(r,\theta)=r\sin\theta\end{cases}$

Then the Jacobian is

$\dfrac{\partial(x,y)}{\partial(r,\theta)}=\begin{vmatrix}x_r&y_r\\x_\theta&y_\theta\end{vmatrix}=\begin{vmatrix}\cos\theta&\sin\theta\\r\sin\theta&-r\cos\theta\end{vmatrix}=-r$

Then

$\mathrm dA=\mathrm dx\,\mathrm dy=|-r|\,\mathrm dr\,\mathrm d\theta=r\,\mathrm dr\,\mathrm d\theta$

so the integral can be written as

$\displaystyle\iint_R\sin(x^2+y^2)\,\mathrm dA=\int_0^{\pi/2}\int_1^5r\sin(r^2)\,\mathrm dr\,\mathrm d\theta$

Let $s=r^2$ , so that $\dfrac{\mathrm ds}2=r\,\mathrm dr$ .

$\displaystyle\frac12\int_0^{\pi/2}\int_1^{25}\sin s\,\mathrm ds\,\mathrm d\theta=-\frac12(\cos25-\cos1)\int_0^{\pi/2}\mathrm d\theta=\frac\pi4(\cos1-\cos25)$

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3 years ago

Evaluate ab+c for a=2 b=3 and c=4 <br><br> A 9<br> B10<br> C27

Phoenix [80]

Hey there!

<h3>ab + 2 </h3><h3>If a = 2, b =3 . and c = 4 </h3><h3>Your problem would change </h3><h3>2(3) + 4 </h3><h2>2(3) = 6 </h2><h2>6 + 4 = 10 </h2><h2>Answer when we "evaluate" is 10 </h2><h2>Good luck on your assignment and enjoy your day!</h2>

~ $LoveYourselfFirst:)$

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4 years ago

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sergejj [24]

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3 years ago