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3 years ago

What is the surface area of the figure below

Mathematics

1 answer:

Vikki [24]3 years ago

7 0

Answer:

54 ft

Step-by-step explanation:

So... the volume is length x width x height = volume.

So... 6 x 3 x 3 = 54 ft

Hope this helps =]

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70 POINTS PLEASE HELP! A dump truck pours sand into a container in the shape of a rectangular prism with a square base of length

galina1969 [7]

Answer:

Step-by-step explanation:

The volume of a rectangular prism is:

$V=\ell wh$

Since the prism has a square base, each side length being 2, this means that both the length and width of our prism is 2. Therefore:

$V=(2)(2)h=4h$

So, we can write:

$V=4h$

The height h increases at a rate of about 8 inches or 8/12 = 2/3 feet per minute.

So, after t minutes, the height will be 2/3(t) feet. Thus, we can substitute:

$\displaystyle V=4\Big(\frac{2}{3}\Big)t=\frac{8}{3}t$

We want to find after how long it will be until the volume is 64 cubic feet. So, V = 64:

$\displaystyle 64 = \frac{8}{3} t$

Solve for t:

$\displaystyle t=\frac{3}{8}(64)=3(8)=24\text{ minutes}$

The correct answer is A.

3 0

3 years ago

Read 2 more answers

Houw would i factor this problem out completely?

kvasek [131]

You can factor out a 3t first, resulting in:
$3t(2t^2+3t-5)$

Now, let's factor the equation in the middle using the quadratic equation. Plug in the values to the quadratic equation:
$\frac{-3\pm \sqrt{3^2-4(2)(-5)}}{2(2)} = -\frac{3\pm \sqrt{49}}{4} = -\frac{3\pm 7}{4}$

Simplify, you get your x's:
$x = 1, -\frac{5}{2}$

To write the equation in simplified form, you just write it this way:
$3t(x-1)(2x+5)$

That's your answer ^

3 0

3 years ago

Read 2 more answers

A moving company wants to buy a new type of truck and needs to know the volume of the storage compartment before they can decide

spayn [35]

10ft, 18ft, 8ft, 2ft, 15ft.

8 0

3 years ago

Helppppppppppppppppppppppppppppp what is 8/0

ad-work [718]

Answer:

8/10 is .8