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r-ruslan [8.4K]
4 years ago
9

You have a square diving pool that is 40ft wide, 40ft long, and 15ft deep.

Mathematics
1 answer:
weqwewe [10]4 years ago
7 0

Answer:

180000

Step-by-step explanation:

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Someone please help me with this.
liubo4ka [24]
  • Radius=r=0.7m
  • Volume=231m^3
  • Height=h

\boxed{\sf Volume=\pi r^2h}

\\ \sf\longmapsto π(0.7)^2h=231

\\ \sf\longmapsto 0.49πh=231

\\ \sf\longmapsto πh=\dfrac{231}{0.49}

\\ \sf\longmapsto 3.14h=471.4

\\ \sf\longmapsto h=\dfrac{471.4}{3.14}

\\ \sf\longmapsto h=150m

5 0
3 years ago
The average rate of change from hour 4 to 8
Naily [24]
Awnser is D

You would do 464-232=232
Then divide 232/2=116
4 0
3 years ago
Factorise the expression 3a2-4ab as far as possible
horsena [70]
In this case, you have to find a common multiple of 3a^2 and 4ab. As only one of the numbers is divisible by two, this means that two cannot go outside of the bracket. The only other aspect that is in both sides of the equation is a, therefore, this goes outside the bracket. The best way to approach this is to divide both sides by a, and this will give you what is inside the bracket. 3a^2 divided by a is 3a, therefore, this is the first aspect in the bracket. -4ab divided by a, leaves -4b. Therefore, these go in the bracket.
3a^2- 4ab simplified is a(3a-4b)
Hope this helps 
7 0
3 years ago
Ralph says he can rewrite (4+5)+21 as 9+21. Do you agree ?why or why not?​
noname [10]
I agree because parentheses always go first and 4+5 equals 9 so in conclusion ralph is correct and the answer would be 30
4 0
3 years ago
Read 2 more answers
last month leonardo went to the gas station 5 times to buy gas for his car the numbers of gallons he purchased were 14.071, 14.3
zavuch27 [327]

Answer:

its 14.32

Step-by-step explanation:

because if you line all the numbers up and you look in the hundreds place 3 is the biggest number

8 0
3 years ago
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