Beatrice pushes with a force of 40N . how can you you determine if Beatrice is doing work on the box ?

Answers

Answer 1
Answer:
The results of her effort can be grouped
into two general categories:

Category #1:
The box does not move.
No work is done.

Category #2:
The box does move.
Work is done.



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What number is 40% of 720

Answers

you would have to set you problem up like
   x         40
____=_____
 720     100

you would multiply 40 by 720 then you would divide 28,800 by 100 your answer will be 288.

Show that the value of the expression: ( 10+5 3 + 10−5 3 )2 is a rational number.

Answers

Answer:

The value of the expression is 400

20 kg bag of bananas for $10

Answers

20 kg bag of bananas for 10 dollarsThis is the given situation in which in every 20 kilogram of bananas, the costs is 10 dollars.Now, let us calculate how much each kg of banana costs will. Let’s solve for the unit rate of this given data:=> 20 kg bag of banana=> 10 dollars = costNow, let’s divide this to get the answer that we need.=> 20 / 10=> 2 bananas per dollars = 2 banana/dollarsOr 10 / 20=> 0.5 dollars/1kg of banana

What is the exact amount for\pi

Answers

There is none exact amount for pi, but there are websites where you can find e.g. first million digits of pi number :) Usually pi is taken as 3.14 or 3.1415 for more accurate results.
3.14159265358979323846264338327950288419716939937510582097494
 
  There are more numbers to go along with this
.

What is 45 divided by 18 expressed as a decimal number

Answers

(45)/(18)=(9 * 5)/(9 * 2)=(5)/(2)=2 (1)/(2)=2 (5)/(10)=\boxed{2.5}


I belive it's 2.5 because

you just divide 45 ÷ 18 = 25 then you turn it into a decimal and it will be 2.5

Hope I helped I am not sure if I'm correct

=)

I would like to know if 2 kg is greater or less then 1500 g

Answers

1 kg = 1000 g
so 2 kg is greater than 1500 g
2 kg = 2000 g
2000 g > 1500 g 

2 kg is greater than 1500 g