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PilotLPTM [1.2K]
3 years ago
8

Can someone show the work for this two-step equation. 8.3(x+3.1)=83 anyone please.

Mathematics
2 answers:
nikdorinn [45]3 years ago
8 0
You divide 83 by 8.3 and then minus 3.1
LekaFEV [45]3 years ago
6 0
You divide 83 by 8.3
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The expression (8 - 3 to the 2nd power - (5 - 2) to the 2nd power is equivalent to which of the following numerical expressions?
Fittoniya [83]
8-3 = 5
5^2 = 25
5-2 = 3
3^2 = 9
25-9=16

Hope this helps
3 0
4 years ago
a box with a square base and open top must have a volume of 70304 c m 3 cm3 . we wish to find the dimensions of the box that min
Dmitriy789 [7]

The box should have base 52 cm by 52 cm and height 26 cm.

What is volume?

A three-dimensional space's occupied volume is measured. It is frequently expressed as a numerical value using SI-derived units, other imperial units, or US customary units. Volume definition and length definition are connected.

The Volume of a box with a square base x by x cm and height h cm is

V = x^2h

Since the surface area directly affects the amount of material used, we can reduce the amount of material by reducing the surface area.

The surface area of the box described is  A = x^2 + 4xh

We need A as a function of x alone, so we'll use the fact that

V = x^2h= 70304 cm^3

⇒ h = \frac{70304}{x^2}

So, the area becomes,

A = x^2+4x(\frac{70304}{x^2})\\ A = x^2 + \frac{281216}{x}

We want to minimize A, so

A' = 2x - \frac{281216}{x^2} =0\\\frac{2x^3-281216}{x^2}=0\\ {2x^3-281216} = 0\\x^3 - 140608=0\\x^3 = 140608\\x = 52

The second derivative test verifies that A has a minimum at this critical number:

A'' = 2+\frac{562432}{x^3}  which is positive at x = 52.

Now,

h = \frac{70304}{x^2}= \frac{70304}{(52)^2}=26

Hence, The box should have base 52 cm by 52 cm and height 26 cm.

To know more about volume, click on the link

brainly.com/question/463363

#SPJ4

8 0
2 years ago
732,178+167-542,137=
madreJ [45]
( 732,178 + 167 ) = 899,178
899,178 - 542,137 = *357,041 that's the last result.
3 0
3 years ago
Read 2 more answers
If you purchase a DVD player that cost $625 how much sales tax will you pay to the nearest cent if the rate is 7.375%
sergey [27]
We can get the tax pay by multiplying the total cost times the tax rate, and take into account that 7.375% = 7375/100000 that huge denominator comes from adding 100 more zeroes as the decimal places in the tax amount has, so we do have:
(7.375%)(625)
= (<span>7375/100000)(625)
= 46.09
therefore, the 7.375% out of $625 is $46.09</span>
7 0
4 years ago
A stone monument is the shape of a pyramid. The width of the base is 12 m and the length of the base is 9 m. The height of the m
inessss [21]
V=(LxWxH)/3 so, V= (9x12x15)/3 = 1,620/3 = 540m^3. From here you multiply 540m^3 by 3,000kg/m^3 and get 1,620,000kg. Then you divide 1,620,000kg by 2,000kg/metric tonne and get 810 metric tonnes.
5 0
3 years ago
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