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Airida [17]
3 years ago
10

Part of the process for evaluating a video is

Mathematics
2 answers:
Mila [183]3 years ago
7 0

Answer:

D

Step-by-step explanation:

Hope this helps! :)

Hunter-Best [27]3 years ago
5 0

Answer:

The Correct answer is D Taking notes on information in the video. Hope this helps! Good Luck! Have a good day!

Step-by-step explanation:

I took the test.

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Premier Bank is planning to have a new building constructed. They would like the length of the building to be 40 feet longer tha
MaRussiya [10]

Let L, W, F, H, P represent, respectively, the length, width, number of floors, height, and perimeter of the building. Here are some equations that model the given information.

  • L = W + 40
  • H = 12×F
  • foundation cost = 10×L×W
  • cost of floors = 35000×F
  • total cost = foundation cost + cost of floors
  • total cost = 1,180,000
  • P = 2×(L+W)
  • P = 3×H

We can rewrite these into a system of equations involving L, W, F.

Let's look first at the relation between the perimeter and height. The two versions of perimeter are equal to each other, so we have (after substituting for H) ...

... 3H = 2(L+W)

... 3(12F) = 2((W +40) +W) . . . . substitute for H and L

... 36F = 4W +80 . . . . . . . . . . . simplify

... 9F = W +20 . . . . . . . . . . . . . divide by 4

Now, we can look at the cost equations.

... 1180000 = 35000F + 10W(W+40) . . . . . substitute for the various cost terms and for L

... 118000 = 3500F +W² +40W . . . . . . . . . divide by 10

The two simplified equations in W and F are ...

  • 9F = W +20
  • 3500F = 118000 -40W -W²

You can solve the first for F and substitute for F in the second. Then you have a quadratic equation in W that can be solved by the usual methods. (Likely, the quadratic formula would be the best choice.) Here, we have elected to let a graphing calculator show the two solutions. One solution has negative dimensions, so is clearly infeasible.

There is one (nearly feasible) solution:

... W ≈ 180.788

... F ≈ 22.31

There is no combination of floor dimensions and integral numbers of floors that will match <em>all</em> of the problem requirements.

_____

A solution that comes about as close as possible is ...

  • length = 221 ft
  • width = 181 ft
  • perimeter = 804 ft
  • # of floors = 22
  • height = 264 ft . . . . . (3×height = 792 ft vs. 804 ft)
  • cost = $1,170,010 . . . (vs. 1,180,000)

4 0
4 years ago
Read 2 more answers
What’s the answer to this, only if u know thanks!’
VladimirAG [237]

Answer:

120+(10+2x)=180

10+2x=60

2x=50

x=25degreeeee

Step-by-step explanation:

follow me in this app for more

7 0
3 years ago
Read 2 more answers
Find the percent. explain your method 30%of 50
grandymaker [24]
Multiply .30 and 50 ... which is 15
4 0
3 years ago
Read 2 more answers
Instructions: Find the missing side lengths. Leave your answers as radicals in simplest form.
gogolik [260]

Answer:

a = 4

b = 4

Step-by-step explanation:

This is a special right triangle with angle measures of 45° 45° 90° and side lengths x x x√2

3 0
3 years ago
What are the factors of 32Round the following items to the nearest £1:
Nonamiya [84]

The factors of 32 as required in the task content are; 2, 4, 8, 16, 32.

<h3>What are the factors of 32?</h3>

The factors of the number 32 as required in the task content are numbers whose multiples amount to 32 and are as listed above.

The item prices as given in the task content rounded to the nearest £1 are;

Notebook

£2.15 = £2

Pencil Case

£3.80 = £4

Colouring Pencil

£1.49 = £1

Read more on rounding off;

brainly.com/question/12263092

#SPJ1

5 0
2 years ago
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