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3 years ago

2x+8=80 please help I am in a test rn helppppp!!!!!

Mathematics

2 answers:

tresset_1 [31]3 years ago

7 0

Answer:

Step-by-step explanation:

Start off by subtracting 8 from each side.

Once you do that your equation will now look like this--->2x=72

To get ride of the 2 you have to divide by 2 on each side.

2x=72

/2 /2

x=36

I hope this helps, and have a great day! :)

n200080 [17]3 years ago

3 0

Answer:

x=36

Step-by-step explanation:

first subtract 8 into 80, then divide it with two and you will find the answer for x

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2 years ago

Suppose that surface σ is parameterized by r(u,v)=⟨ucos(3v),usin(3v),v⟩, 0≤u≤7 and 0≤v≤2π3 and f(x,y,z)=x2+y2+z2. Set up the sur

Bad White [126]

Looks like you have most of the details already, but you're missing one crucial piece.

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$\left\|\dfrac{\partial\vec r}{\partial u}\times\dfrac{\partial\vec r}{\partial v}\right\|=\sqrt{\sin^23v+(-\cos3v)^2+(3u)^2}=\sqrt{9u^2+1}$

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6 0

2 years ago

Are my answers correct?

Snezhnost [94]

Answer:

20 is x ≥ 25

Step-by-step explanation:

In number 20 you put x is less than or equal to 25 ( x ≤ 25 )

It should be x is greater than or equal to 25 ( x ≥ 25 ) because it says it cannot be less than 25.

All your other answers are correct. Good job.

7 0

2 years ago