I have to do this again because it didn’t show my picture

Mathematics

1 answer:

Oxana [17]2 years ago

8 0

Answer to the second question.

Step-by-step explanation:

3⁴ simply means 3×3×3×3=81

3² 3×3=9

81/9=9

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45% of 20 is what I need help and I need u to explain it please thank u

lora16 [44]

45% of 20
20 times 0.45
= 9
The answer is 9

5 0

2 years ago

Math is hard help !!!!!

3241004551 [841]

Answer:

3000

Step-by-step explanation:

x = original amount of GHC

$\frac{1}{3} (\frac{1}{2}x)$ --> 1/6x = 500

x= 3000

7 0

2 years ago

What happens to the energy not output by a machine

Sveta_85 [38]

Answer:

By using the energy conservation law, the input energy must be equivalent to the output energy. If you measured output energy is lower than your input energy, you have lost that difference of energy either in mechanical inefficiency (friction, heat, etc.) or an energy sink.

Thus, the energy not output by the machine is lost in the process within the machine.

Cheers.

5 0

3 years ago

Mrs Omar runs the school tennis club. She has a bin of tennis balls and rackets for every 5 tennis balls in the bin there are 5

Sav [38]

Answer:

x=y

Step-by-step explanation:

let x be the number of tennis balls and y the number of rackets.

-We divide the number of balls by the number of rackets to find out their ratio of proportionality:

$\frac{x}{y}=\frac{5}{5}=\frac{1}{1}=1$