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3 years ago

HELP!!! PLEAAASSEEEE

Mathematics

2 answers:

nikklg [1K]3 years ago

4 0

Answer:

B is correct

Step-by-step explanation:

hope this helps

melomori [17]3 years ago

3 0

Answer:

Step-by-step explanation:

please mark brainliest

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347-31-41537-11- 43<br> One solution

olya-2409 [2.1K]

Answer:

That is easy.

-41275.

Step-by-step explanation:

Can I have brainliest please

5 0

4 years ago

MARSVECTORCALC6 3.4.020. My Notes A rectangular box with no top is to have a surface area of 64 m2. Find the dimensions (in m) t

ioda

Answer:

We would have

$l =w =\frac{8\sqrt{3}}{3} \\h = \frac{8\sqrt{3}}{6}$

where " l " is length, " w" is width and "h" is height.

Step-by-step explanation:

Step 1

Remember that

Surface area for a box with no top = $lw+2lh+2wh = 64$

where " l " is length, " w" is width and "h" is height.

Step 2.

Remember as well that

Volume of the box = $l*w*h$

Step 3

We can now use lagrange multipliers. Lets say,

$F(l,w,h) = lwh$

and

$g(l,w,h) = lw+2lh+2wh = 64$

By the lagrange multipliers method we know that

$\nabla F = \lambda \nabla g$

Step 4

Remember that

$\nabla F = (wh,lh,lw)$

and

$\nabla g = (w+2h,l+2h , 2w+2l)$

So basically you will have the system of equations

$wh = \lambda (w+2h)\\lh = \lambda (l+2h)\\lw = \lambda (2w+2l)$

Now, remember that you can multiply the first eqation, by "l" the second equation by "w" and the third one by "h" and you would get

$lwh = l\lambda (w+2h)\\\\lwh = w\lambda (l+2h)\\\\lwh = h\lambda (2w+2l)$

Then you would get

$l\lambda (w+2h) = w\lambda (l+2h) = h\lambda (2w+2l)$

You can get rid of $\lambda$ from these equations and you would get

$lw+2lh = lw+2wh = 2wh+2lh$

And from those equations you would get

$l = w =2h$

Now remember the original equation

$lw+2lh+2wh = 64$

If we plug in what we just got, we would have

$l^{2} + l^{2} + l^2 = 64 \\3l^{2} = 64 \\l = w = \frac{8\sqrt{3} }{3} \\h = \frac{8\sqrt{3} }{6}$

7 0

4 years ago

The measure of an angle is 10 degrees more than its supplement. What is the measure of

inessss [21]

Supplementary angles are angles that add up to 180 degrees.

Angle 1 = x

Angle 2 = x + 10

Since they are supplementary, we can set then equal to 180

x + x + 10 = 180

Combine like terms

2x + 10 = 180

Subtract 10 from both sides

2x = 170

Divide both sides by 2

x = 85

Angle 1 = 85 degrees

Angle 2 = 85 + 10 = 95 degrees

7 0

3 years ago

Write an equivalent expression without parentheses.

julia-pushkina [17]

Answer:

A.−3h+(−10)+2+(−12h)

Hey mate hope its help you....

6 0

3 years ago

Miss Liang is building a deck that is 2 2/9 yards long and 3 3/5 yards wide what is the area of her deck

Luden [163]

Answer:

8 yards

Step-by-step explanation:

first make the fraction improper so 20/9 times 18/5 equals 8

4 0

3 years ago