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With respect to their balanced equations, explain the difference between photosynthesis and respiration.

Respiration uses 'food' in the form of glucose with oxygen to store (never create) energy in the form of ATP, along with CO2 and H2O. Photosynthesis uses energy from light with CO2 and H2O to create/store en...
MS
Answered by Mikhaaeel S. • Biology tutor
3944 Views

168 is 4/7 of a number. What is the number?

If 168 is four sevenths of a number then divide this by 4 to give 1 seventh of the number. 168/4 = 42 So 42 is one seventh of the number. Now multiply this by 7 to find the number. 42*7 = 294
WL
Answered by William L. • Maths tutor
5914 Views

Find the stationary point of the curve y=3x^2-2x+2 and state the nature of this stationary point.

The stationary point is a minimum point. I will run through the working out for the question using the whiteboard in the session as it is difficult to demonstrate without relevant formatting.
WL
Answered by William L. • Maths tutor
3957 Views

The alkanes and the alkenes are examples of homologous series of compounds. Name 3 properties of a homologous series.

There are a range of answers you could give: Homologous series' are chemically similar or chemically the same or react in the same way. They contain the same functional group, the same general formula (e.g. ...
UD
Answered by Ursula D. • Chemistry tutor
7721 Views

Explain why the equation tanx + cotx = 1 does not have real solutions.

First of all, we need to express tangent and cotangent in terms of sine and cosine using the identities: tanx = sinx / cosx and cotx = cosx / sinx. Substituting these expressions into the initial equation we...
SV
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