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kirill [66]
3 years ago
6

Please answer the question in the picture!

Mathematics
1 answer:
Sliva [168]3 years ago
4 0
Answer will be option 2nd.

S(-4,7), T(-7,0), U(-1,0)
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Water flows at 12 m/s in a horizontal pipe with a pressure of 3.0 104 n/m2. if the pipe widens to twice its original radius, wh
Alexxx [7]
Total pressure is constant and PT = P = 1/2*ρ*v^2 So p1 + 1/2*ρ*v1^2 = p2 + 1/2*ρ*v2^2 and from continuity we have ρ*A1*v1 = ρ*A2*v2 So v2 = v1*A1/A2 since r2 = 2r1 then A2 = 4A1 so v2 = v1/4 Now from above p2 = p1 + 1/2*ρ*v1^2 - 1/2*ρ*v2^2 = p1 + 1/2*ρ*v1^2 - 1/2*ρ*v1^2/4^2 So p2 = 3.0x10^4Pa + 1/2*1000kg/m^3*(12m/s)^2 - 1/2*1000kg/m^3*12^2/16 = 9.75x10^4Pa = 9.8x10^4Pa
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3 years ago
Jessica got a prepaid debit card with $20 on it. For her first purchase with the card, she bought some bulk ribbon at a craft st
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5 0
2 years ago
An inequality is shown below. x + 2.5 < 20 What is the greatest value of x from the set {10.5, 12.5, 17.5, 19.5} that makes t
34kurt
C is the final answer :)
4 0
3 years ago
Solve for y 4.2x - 1.4y = 2.1
NeX [460]
4.2x - 1.4y = 2.1
-1.4y = -4.2x + 2.1
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3 0
3 years ago
Read 2 more answers
What percent is equivalent to
Soloha48 [4]

Answer:

20%

Step-by-step explanation:

To change a fraction to a percentage , multiply by 100%

\frac{8}{40} × 100%

= 0.2 × 100%

= 20%

8 0
2 years ago
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