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i) Convert 01101001 from binary to denary. ii) Convert 27 from denary to hexadecimal. ii) State one use of hexadecimal in computing and why it is more beneficial in this application that binary.

i) 01101001 2 = 105 10 ii) 27 10 = 1B 16 iii) Colour codes, MAC addresses, memory locations, many others.The main advantage of hexadecimal over a number system like binary is that it is far more compact. A 1...
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Answered by Shafaan J. • Computing tutor
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If Max weighed 17.2 N on Ceres (gravitational field strength of 0.27 N/kg), then what would she weigh on Earth. Give your answer to 3 s.f. and state your units.

For this question you only need to know one equation, however, what is key is to be able to understand what the question is asking for and how to go about it.Weight is the force applied to a body due to the ...
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Answered by Shafaan J. • Physics tutor
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What did the Meselson and Stahl experiment show?

DNA replication was thought to be either conservative (two old strands of DNA stay together), semi-conservative (one old and one new strand of DNA), or dispersive (bit of old and newly replicated DNA in each...
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Answered by Ciara L. • Biology tutor
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How can an increase in government spending affect the economy?

Government spending (G) is a component of aggregate demand. The aggregate demand (AD) equation is Y = C + I + G + NX. It measures the total demand for goods and services in the economy. Using a diagram we ca...
Answered by • Economics tutor
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Simplify the following expression: ( (x^5) / (x^2) ) ^ 4

For this question it is key to remember the indices laws. The ones you need to recall for this question are: x a / x b = x a - b , and (x a ) b = x a * b . Using these laws, we can simplify the expression in...
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Answered by Shafaan J. • Maths tutor
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