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8^(3/4)*2^(x) = 16^(4/5). Work out the exact value of x.

8 = 2^3 and 16 = 2^4. Substituting these into the above equation, we get 2^(9/4)*2^(x) = 2^(16/5). Using the laws of indices, we can derive the equation (9/4) + x = (16/5). In decimal form, this is 2.25 +...

KS
Answered by Katherine S. Maths tutor
6161 Views

Make x the subject of the formula 4(2x-y) = 3ax - 5

4(2x-y) = 3ax - 5Step 1 - Expand 8x - 4y = 3ax - 5Step 2 - Collect like terms 8x - 3ax = 4y - 5Step 3 - Factorise x(8-3a) = 4y - 5Step 4 - Isolate x x = (4y - 5)/(8-3a)

AS
Answered by Adam S. Maths tutor
3454 Views

When should I use the present subjunctive?

The subjunctive is a mood expressing the uncertainty or doubt of a speaker. To express this uncertainty, the speaker switches from the indicative (hablo/hablas/habla/hablamos/hablais/hablan) to th...

AH
Answered by Alarice H. Spanish tutor
2073 Views

Identify three types of long-term memory and explain how each type is shown in an example of your choice.

One type of Long Term Memory is procedural memory. An example of when this is used is when riding a bike for example as an individual is remembering a muscle-based memory. Procedural memories are often re...

FT
Answered by Fiona T. Psychology tutor
2903 Views

A flight travels at 750kmph for 7 hours and 18 minutes, work out the distance travelled? Then convert 750 km/h into metres per second.

To work out the distance travelled, you must multiply its average (mean) speed by the time for which it was travelling, therefore in this case, 750 x 73/10 (NB the time is 7 plus 18/60 or 3/10, not 7.18),...

CM
Answered by Charlie M. Maths tutor
6058 Views

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