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densk [106]
3 years ago
9

Arithmetic sequences

Mathematics
2 answers:
skelet666 [1.2K]3 years ago
8 0
IM BEGGING YOU PLEASE LIKE SO I COULD GET SOME POINTS SO I COULD POST SOME STUFF I NEED POINTS FOR MY TEST THAT I HAVE SOON
PilotLPTM [1.2K]3 years ago
7 0
Hope this helps. Don’t mind the 0 and 17 above, I do that just in case.

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The power P of a jet of water is jointly proportional to the cross sectional area A and to the cube ofthe velocity V. (a) Write
anastassius [24]

Answer:

a)  P=kAV^3

b)  54

Step-by-step explanation:

a)

If one quantity, A, is jointly proportional to other 2 quantities (B & C), we can write proportionality equation as:

A=k*B*C

Where

k is the proportionality constant

Now, for this problem, P is jointly proportional to A and CUBE OF V, so we can write:

P=kAV^3

b)

Now velocity, V, is triples, which means it becomes 3V

Also, cross sectional area, A, is doubled, which means it becomes 2A

Let's put these into formula and see the difference:

P=kAV^3\\P=k(2A)(3V)^3\\P=k(2A)(27V^3)\\P=(2*27)kAV^3\\P=54kAV^3

So, power is multiplied by a factor of 54. Power becomes 54 times if Area is doubled and velocity is tripled ( as seen ).

8 0
2 years ago
Solve the following equation 18x-3=4x+11
I am Lyosha [343]
18x-3=4x+11
-5 -4
14x-3=11
+3+3
14x=14
x=1 answer =1
7 0
1 year ago
Read 2 more answers
Tickets for a concert are $40 for main-floor seats and $25 for upper level seats. A total of 2000 concert tickets were sold. The
Tems11 [23]

Step-by-step explanation:

<u>to show how many tickets were sold:</u>

x = upper floor tickets

y = main floor tickets

x + y = 2000

<u>to show total amount of revenue:</u>

25x + 40y = 62,000

<u>Finding answer using both equations:</u>

x + y = 2000

multiply each side by 25

25x + 25y = 2000 × 25

25x + 25y = 50,000

25x + 40y = 62,000

-

25x + 25y = 50,000

-----------------------------------

15y = 12,000

^ this is column subtraction

<em>^ this column subtraction is done to isolate y so we can work with one value rather than 2</em>

15y = 12,000

divide each side by 15

12,000 ÷ 15 = 800

y = 800

x + y = 2000

x + 800 = 2000

x = 1200

Therefore 1200 upper-level tickets were sold

800 main floor tickets were sold

4 0
2 years ago
Which pair of lines are perpendicular lines?
Evgen [1.6K]

Answer:

Lines that cross one another.

Step-by-step explanation:

4 0
3 years ago
Is the answer A ?????<br><br> I don't know, plzzzz help me
-Dominant- [34]
I think very well that it is A or B. With my experience, but you might want to keep doing research.

8 0
2 years ago
Read 2 more answers
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