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dem82 [27]
2 years ago
8

Which algebraic expression represents “Nicholas tripled his workout time”?

Mathematics
1 answer:
PolarNik [594]2 years ago
6 0

Answer:

3 w

Step-by-step explanation:

because if you think about it nick was doing a lot and then he needs to triple so the equation would be 3 w

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MAXImum [283]
8•13=104
7•13=91
6•13=78

104+91+78=273
8 0
4 years ago
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If a=10, What is a/ 2 plus 9​
makkiz [27]

Answer:

a=14

Step-by-step explanation:

if a=10, 10/2 = 5 plus 9 = 14

5 0
3 years ago
A large storage tank, open to the atmosphere at the top and filled with water, develops a small hole in its side at a point 10.4
vlabodo [156]

Answer:

Therefore the diameter of the hole is 1.94 \times 10^{-3} m.

Step-by-step explanation:

Bernoulli's equation,

P_1+\frac12 \rho v^2_1+\rho g h_1= P_2+\frac12 \rho v^2_2+\rho g h_2

P₁ = P₂= atmospheric presser

\rho= density

\frac12 \rho v^2_1+\rho g h_1= \frac12 \rho v^2_2+\rho g h_2             [since P₁ = P₂]

\Rightarrow\rho (\frac12 v^2_1+ g h_1)= \rho(\frac12 v^2_2+ g h_2)

\Rightarrow\frac12 v^2_1+ g h_1= \frac12 v^2_2+ g h_2

\Rightarrow\frac12 v^2_2-\frac12 v^2_1=g h_1- g h_2

\Rightarrow v^2_2- v^2_1=2g h                                [h_1-h_2=h]

Here   v_1\approx 0

\Rightarrow v^2_2=2g h

\therefore v_2=\sqrt {2gh

Here g= 9.8 m/s² , h = 10.4 m

The velocity of water that leaves from the hole v_2 = \sqrt {2\times 9.8\times 10.4} m/s

                                                                                  =14.28 m/s.

Given, the rate of flow from the leak is 2.53\times 10^{-3} m^3/min

                                                               =\frac{2.53\times 10^{-3}}{60}  m^3/s

Let the diameter of the hole be d.

Then the cross section area of the hole is =\pi (\frac d2)^2

We know that,

The rate of flow = Cross section area × speed

\Rightarrow \frac{2.53\times 10^{-3}}{60} =\pi (\frac d2)^2\times 14.28

\Rightarrow (\frac d2)^2=\frac{2.53\times 10^{-3}}{60\times 14.28\times \pi}

\Rightarrow d= 1.94 \times 10^{-3}

Therefore the diameter of the hole is 1.94 \times 10^{-3} m.

4 0
4 years ago
In a market economy, if the price of a good increases, the quantity demanded by consumers and the quantity supplied by producers
love history [14]

The correct answer is A hope this helps


3 0
4 years ago
What is the radius of a circle that has a<br> circumference of 78.8 inches?
maksim [4K]

Answer:

Easy... its 39.4

Step-by-step explanation:

Cirumference is the lenght all the way around the circle

while radius is only half the circle so you just divide the cirumference by 2 to get half.

6 0
3 years ago
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