1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sergeeva-Olga [200]
3 years ago
10

PLS THIS IS TIMED! I WILL GIVE BRAINLIEST!!!!​

Mathematics
1 answer:
saveliy_v [14]3 years ago
8 0

Answer:

the answer is y= 5(0.25)^x or C

Step-by-step explanation:

You might be interested in
I NEED HELP PLEASE, THANKS! :)
eduard

Answer:

  2444

Step-by-step explanation:

The total cost is the integral of the marginal cost.

  \displaystyle C=\int_{144}^{625}{\dfrac{94}{\sqrt{x}}}\,dx=\left. 2\cdot 94\sqrt{x}\right|_{144}^{625}=188(25 -12)=\boxed{2444}

The total cost of producing units 144 through 625 is 2444.

_____

If all you need is a number, a graphing calculator can give you that.

8 0
3 years ago
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
3 years ago
Read 2 more answers
HELPPP QUICKLYYYYY!
Lady_Fox [76]
550 ft because that’s the painting rate
5 0
2 years ago
Read 2 more answers
How do i factor s^2+9s=-20
Talja [164]
To factor you have to do this: 

s^2 + 9s = -20
      + 20    +20

s^2 + 9s + 20 = 0

now you need to numbers that multiplied give you 20 
and then those same 2 numbers have to add to 9

5 x 4 = 20
5+ 4 = 9

(x + 4) (x+ 5)

that means that x= -4, and -5
8 0
3 years ago
I don't get this problem
Dominik [7]
20/4.... 5cm is ur answer
4 0
3 years ago
Read 2 more answers
Other questions:
  • Select the correct answer. If , which statement is true? if g(x) = f(1/3x)
    11·1 answer
  • Which of the following equations is the equation 2 - 3y + 6x = 0 written in slope-intercept form?
    8·2 answers
  • What is 3/8 plus 4/5
    9·2 answers
  • A system of inequalities can be used to determine the depth of a toy, in meters, in a pool depending on the time, in seconds, si
    8·1 answer
  • Pre-Calculus - Systems of Equations with 3 Variables please show work/steps
    6·1 answer
  • (08.05)
    8·1 answer
  • I need help on this can someone help
    11·2 answers
  • Two rectangular sheets of glass have equal perimeters. One has a length of 36 inches and a width w. The other has a length of 26
    13·1 answer
  • Which of the following can be written as an equation
    12·1 answer
  • Need help!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!