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noname [10]
3 years ago
8

A motorboat takes

Mathematics
2 answers:
shtirl [24]3 years ago
8 0
The rate of the current 1.5 times
allochka39001 [22]3 years ago
4 0
3:108 for upstream and 2:108 for downstream. if you're comparing the time it would be 3:2 upstream to downstream.
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I support her no matter how she feels I’m still gonna love her congrats queen so happy for u ok
sp2606 [1]

Answer:

As you should

Step-by-step explanation:

7 0
3 years ago
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One gallon of paint covers 400 square feet of surface area. A typical spherical water tower holds 66,840.28 cubic feet of water.
enot [183]

Answer: There will enough to paint the outside of a typical spherical water tower.


Step-by-step explanation:

1. Solve for the radius r from the formula for calculate the volume of a sphere. as following:

V=\frac{4}{3}r^{3}\pi\\\frac{3V}{4\pi}=r^{3}\\r=\sqrt[3]{\frac{3V}{4\pi}}

2. Substitute values:

r=\sqrt[3]{\frac{3(66,840.28ft^{3})}{4\pi}}=25.17ft

3. Substitute the value of the radius into the equation fo calculate the surface area of a sphere, then you obtain that the surface area of a typical spherical water tower is:

SA=4r^{2}\pi\\SA=4(25.17ft)^{2} \pi\\SA=7,964.95ft^{2}

3. If a city has 25 gallons of paint available and one gallon of paint covers 400 square feet of surface area, you must multiply 25 by 400 square feet to know if there will be enough to paint the outside of a typical spherical water tower.

25*400ft^{2}=10,000ft^{2}

As you can see, there will enough to paint the outside of a typical spherical water tower.

7 0
3 years ago
Tell me the answer for each box its on classkick and i can see if its wrong
Licemer1 [7]

Answer:

$19.35

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Help please thank you so much !
MakcuM [25]

Answer:

I feel the answer is D (Sorry if this isn't the correct answer)

6 0
3 years ago
How to estimate the square root of a number that is not a perfect square? Give an example and explain how to find it step by ste
tangare [24]

Answer:

See below

Step-by-step explanation:

  • <em>There is a formula for estimating square root of non-perfect square numbers</em>
  • <em>√(A²±B) = A ± B/2A</em>
  • <em>where A² is the nearest perfect square, B is the difference between the original number and the perfect square</em>

<u>Examples</u>

  • 1) √75 = √(8²+11) = 8 + 11/(2*8) = 8 + 11/16 = 8.6875
  • 2) √114 = √(11² - 7) = 11 - 7/(2*11) = 10.6818
6 0
3 years ago
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