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goldenfox [79]
3 years ago
7

Anyone know quadratics

Mathematics
1 answer:
VMariaS [17]3 years ago
3 0
When competing the square, you want to have
{b}^{2}
at the end, and using the fact that the x term and coefficient are really
2bx
, we see that the third option is the most efficient way to start
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A water tank is box shaped with a square base of side length 5 ft. The tank is fed by a pipe above and drains from its base. In
adell [148]

Answer:

dy/dt = - (1/5) ft/s = - 0.2 ft/s

Step-by-step explanation:

Given

L = 5 ft

Qin = 25 ft³/s

Qout = 30 ft³/s

h = 10 ft

dy/dt = ?

We can apply the relation

ΔQ = Qint - Qout = 25 ft³/s - 30 ft³/s

⇒ ΔQ = - 5 ft³/s

Then we use the formula

Q = v*A

where Q = ΔQ, A = L²  is the area of square base and v = dy/dt  is the rate of change in the depth of the solution in the tank

⇒ ΔQ = (dy/dt)*L²

⇒ dy/dt = ΔQ/L²

⇒ dy/dt = (- 5 ft³/s)/(5 ft)²

⇒ dy/dt = - (1/5) ft/s = - 0.2 ft/s

6 0
3 years ago
Can you help me asap please
snow_tiger [21]

Answer:

-2, 4. -2 is x and 4 is y

Step-by-step explanation:

hope this helps!

3 0
3 years ago
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Tom [10]
The answer is 48/5 (9.6)
5 0
2 years ago
Order of operations 8x18/4+15
sweet-ann [11.9K]

Answer:

8×18=144

4±15=19

144÷19

7.579 answer

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2 years ago
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Answer:

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Step-by-step explanation:

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