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PIT_PIT [208]
3 years ago
7

WILL MARK BRAINLIEST! HELP ASAP!!!!

Mathematics
1 answer:
Anna71 [15]3 years ago
7 0
Can you explain what exactly you need to do because I know how to do this but I need more context
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An 14-meter-tall cylindrical tank with a 2-meter radius holds water and is half full. Find the work (in mega-joules) needed to p
agasfer [191]

Answer:

to two decimal places

= 6.04 mega joules

Step-by-step explanation:

The volume of the half tank

= πr²h

r= 2 m

h= 14/2= 7 m

Volume= 22/7 *2² *7

Volume= 88 m³

work (in mega-joules) needed to pump all of the water to the top of the tank

= Volume*mass density *acceleration*distance

= 88*1000*9.8*7

= 6036800 joules

In mega joules

= 6.036800 mega Joules

to two decimal places

= 6.04 mega joules

3 0
3 years ago
Name the following geometric figures in as many ways as you can. <br> •————•<br> X W
agasfer [191]

•————•

X W

This is called as line segment XW. The 2 dots at the ends indicate that the line segment has a starting point & an end point.

______

RainbowSalt2222 ☔

8 0
3 years ago
Sipho buys a bread on Monday and eats a third of it. On Tuesday he eats half of what is left over. If the bread is cut in 21 sli
Bess [88]

Answer:

7 slices

Step-by-step explanation:

1/3 of the bread would be seven slices (21/3), and he would be left with 2/3, half of which is 1/3; another seven slices were eaten. On Wednesday, he will have 7 slices left over.

5 0
3 years ago
Help me on this PLEASE i dont have much time What is the simplified form of this expression? 18 ÷ 6 + 8 × 7 – 12 + 8 × 2
LuckyWell [14K]

Hello using PEMDAS I came up with 63

division and multiplication first then add and subtract leaving you with 63

4 0
3 years ago
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In trying to calculate the product of 5 and 12 in her head, Evie first multiplied 5 times 10 and then added the result to the pr
Pie

Answer:

Step-by-step explanation:

distributive

7 0
3 years ago
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