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enyata [817]
3 years ago
8

Can someone help? i really don’t understand. question is in the picture

Mathematics
1 answer:
Delicious77 [7]3 years ago
5 0

Answer: (-1,2)

Step-by-step explanation:

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A water tank has a square base of area 5 square meters. Initially the tank contains 70 cubic meters. Water leaves the tank, star
ANEK [815]

Answer:

9.2\ \text{m}

Step-by-step explanation:

b = Surface area of base = 5 square meters

Volume of water in tank = 70 cubic meters

The rate at which the volume is reducing is

\dfrac{dV}{dt}=2+4t\\\Rightarrow dV=2+4tdt

Integrating from t=0 to t=3

V=\int^3_0(2+4t)dt\\\Rightarrow V=2t+2t^2|_0^3\\\Rightarrow V=2\times 3+2\times 3^2-0\\\Rightarrow V=24

Volume of water remaining in the tank is 70-24=46\ \text{m}^3

Suface area of base \times depth = Volume

5\times d=46\\\Rightarrow d=\dfrac{46}{5}\\\Rightarrow d=9.2\ \text{m}

The depth of the water remaining in the tank is 9.2\ \text{m}.

3 0
3 years ago
What are the chances of landing on heads when tossing one coin?
e-lub [12.9K]

Answer:

50%

Step-by-step explanation:

Since there is either heads or tails, meaning only two options you have a 50% chance of getting heads

6 0
3 years ago
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What is the approximate length of VU? What is the length of the midsegment parallel to VU?
anastassius [24]

u is at (1,-2)

V is at (-6,-6)

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6 0
2 years ago
Write the equation of a line that is parallel to {x=8}x=8x, equals, 8 and that passes through the point {(-3,-2)}(−3,−2)left par
Alexxandr [17]

Answer:

  x = -3

Step-by-step explanation:

The line parallel to x=8 is another vertical line:

  x = constant

To make it go through a point with an x-coordinate of -3, the constant must be -3.

Your line is ...

  x = -3

5 0
3 years ago
Raise g to the 7th power, multiply the result by 4, then subtract f from what you have
WINSTONCH [101]

Answer:

f - 4(g^7)

It's simple algebraic operations!

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