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How would 12 be represented in binary?

Decimal (the system you use everyday) is a base- 10 number system, meaning it only uses 10 digits: 0-9. - Binary is a base- 2 number system, meaning it only uses 2 digits: 0 and 1. - The decimal system's pla...
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Answered by Aiden D. • Computing tutor
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The distance from the Earth to the Sun is 93 million miles. Assume: it takes 365 days for the Earth to travel once around the Sun and the Earth travels in a circle with the Sun at the centre. Work out the average speed of the Earth in miles per hour.

This question is testing your understanding of speed, distance and time and sounds much more complicated than it actually is. For a question like this one, it is best to draw a picture to help you get a bett...
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Answered by Jack H. • Maths tutor
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Que te gusta hacer en tu tiempo libre?

Normalmente, me gusta salir al cine con mis amigas durante el fin de semana. A veces voy a dar una vuelta con mi perro en el parque porque hay que decir que es importante que cuidemos de nuestra salud y el e...
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Answered by Feruz K. • Spanish tutor
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Solve the following, (3/4 + 2/5)^2

Firstly, get both fractions to the same demonimator 3/4 X 5/5 = 15/20. 2/5 X 4/4 = 8/20 This makes the question become (15/20 + 8/20) 2 15/20 + 8/20 = 23/20 Therefore (23/20) 2 So finaly square both top and ...
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Answered by Adam B. • Maths tutor
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Outline the limestone cycle including the relevant equations.

Calcium carbonate undergoes thermal decomposition to form calcium oxide and carbon dioxide. Calcium Oxide (CaO) can undergo an exothermique réaction with water to product Calcium Hydroxide, also known as sla...
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