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
Paladinen [302]
3 years ago
8

2x+2(1960/x)=200 please help for math hw

Mathematics
1 answer:
sp2606 [1]3 years ago
3 0

Two solutions:

1. x =(100-√2160)/2=50-6√ 15 = 26.762

2. x =(100+√2160)/2=50+6√ 15 = 73.238

You might be interested in
The plutonium isotope has half life
ratelena [41]

Answer:

Step-by-step explanation:

The different isotopes have different "half-lives" – the time it takes to lose half of its radioactivity. Pu-239 has a half-life of 24,100 years and Pu-241's half-life is 14.4 years. Substances with shorter half-lives decay more quickly than those with longer half-lives, so they emit more energetic radioactivity.

6 0
2 years ago
Find the work (in ft-lb) required to pump all the water out of a cylinder that has a circular base of radius 7 ft and height 200
Virty [35]

Answer:

<em>work done is equal to 384279168 lb-ft</em>

<em></em>

Step-by-step explanation:

The cylinder has a circular base of 7 ft.

The height of the cylinder is 200 ft

The weight density of water in the cylinder is 62.4 lb/ft^3

First, we find the volume of the water in the cylinder by finding the volume of this cylinder occupied by the water.

The volume of a cylinder is given as \pi r^{2} h

where, r is the radius,

and h is the height of the cylinder.

the volume of the cylinder = 3.142* 7^{2}*200 = <em>30791.6 ft^3</em>

Since the weight density of water is 62.4 lb/ft^3, then, the weight of the water within the cylinder will be...

weight of water = 62.4 x 30791.6 = <em>1921395.84 lb</em>

We know that the whole weight of the water will have to be pumped out over the height of cylindrical container. Also, we know that the work that will be done in moving this weight of water over this height will be the product of the weight of water, and the height over which it is pumped. Therefore...

The work done in pumping the water out of the container will be

==> (weight of water) x (height of cylinder) = 1921395.84 x 200

==> <em>work done is equal to 384279168 lb-ft</em>

7 0
3 years ago
Need help please help please please please please
REY [17]
<h3>1+3/4*1*3/5</h3><h3>7/4*8/5</h3><h3 /><h3>56/20</h3><h3>2+16/20</h3>
7 0
3 years ago
help me please...Maggie is monitoring the number of fish in a fish breeding center. The table below shows the number of fish wit
lisov135 [29]

The independent variable in the relationship is the Number of Months and should be placed on the x-axis (the horizontal axis)


The dependent variable in the relationship is the Number of Fish and should be placed on the y-axis (the vertical axis)


Hope it helps.

8 0
3 years ago
Read 2 more answers
What is the value of 4x3x3x3 when x=4
Natalija [7]

Answer: 6912

Step-by-step explanation:

4(4)3(4)3(4)3

4(4) = 16

3(4) = 12

3(4) = 12

3(4) = 12

3(4) = 12

Then multiply all those for your answer

8 0
3 years ago
Other questions:
  • Which of the following are the coordinates of the vertex of y = −x2 + 2x + 1
    10·1 answer
  • A parent pushes a single child on a swing. Suppose two children now sit on the same swing, and the parent pushes with the same f
    9·2 answers
  • I'm cheating on my homework
    6·2 answers
  • Help please I’ll give brainleiest :)
    15·1 answer
  • Marsha deposited $8500 into a savings account 2 years ago. The simple interest rate is 5% how much did Marsha earn in interest
    6·1 answer
  • Help Which statement is true about the end behavior of the graphed function?
    5·1 answer
  • What is a formula for the nth term of the given sequence?<br> 6, 12, 24...
    7·1 answer
  • What is cos 30º?<br> O A. 13<br> B. 1<br> Oc.<br> O D.<br> 3<br> 2<br> E.<br> O F. 1 /
    11·1 answer
  • WORTH 25 POINTS!!!!! Three times as many adults as students attended a game. The total attendance was 480. If 3x + x = 480 model
    7·1 answer
  • Is borrowing money a <br><br> Delegated power <br> Reserved power <br> Concurrent power
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!