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If angle x = 63 degrees, work out the remaining angle of this right-angled triangle

All angles in a triangle add up to 180 degrees. In a right angled triangle, we know one angle is 90 degrees. In the question, it is given that another angle is 63 degrees. So the remaining angle must be 180 ...
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Answered by Rebekah L. • Maths tutor
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What are mitochondria and ribosomes and what are their function?

Mitochondria and ribosomes are both structures inside the animal cell. Mitochondria are the site of respiration. They supply energy to the cell by aerobic respiration. Ribosomes are strucutres where protein ...
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Answered by Rebekah L. • Biology tutor
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Convert 0.2m^2 to mm^2

We know that 1m=1000mm Therefore 1m^2= 1000^2 mm^2 Since 1/0.2=5 1000^2 / 5= Answer
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Answered by Lucas F. • Maths tutor
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If a line is in the form y=mx+c why does m give you the gradient of the line

gradient is change in y over change in x. if (x1,y1) and (x2,x1) are lines on a graph then the change in y is y2-y1 and change in x is x2-x1, and since they are both on the line y1=mx1+c and y2=mx2+c, so y2-...
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Answered by Vedant B. • Maths tutor
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Why do airbags make a car safer

In a car crash the car decelerates really quickly. If there is no air bag your head continues to travel at the same speed as before until it hits the dash board and decelerates really quickly upon impact, si...
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Answered by Vedant B. • Physics tutor
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