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What is the equation of the tangent to the circle (x-5)^2+(y-3)^2=9 at the points of intersection of the circle with the line 2x-y-1=0

Teh points of intersection can be found by subbing in y=2x-1 to the equation of the circle. (x-5)²+(2x-1-3)²=5x²-26x+33=9 so we have 5x²-26x+24=0. Solving the q...

Answered by Tutor67416 D. • Maths tutor

3120 Views

State where most water reabsorption takes place in the kidney. State also the process by which the water is reabsorbed.?

Most water reabsorption takes place in the proximal convoluted tubules, part of the nephrons in the kidney. Water is reabsorbed by a process called osmosis; the diffusion of water from an area of high wat...

Answered by Dearbhail R. • Biology tutor

39072 Views

When do I use the product rule as opposed to the chain rule?

The product rule is used when two functions of x are multiplied by each other, hence, product. So this can be used to differnetiatate 3x²* x+1 or more complex functions like sinxcosx.

Th...

Answered by Lota U. • Maths tutor

3558 Views

How do I analyse a poem?

When analysing a poem it's important to remember the Fantastic Four: form, structure, subject matter, and language. Form refers to what kind of poem you're reading - for example, it could be a sonnet or a...

Answered by Darcy J. • English Literature tutor

6541 Views

Describe the structural differences between DNA and RNA.

DNA is a double stranded macromolecule which is composed of nucleotides . The two DNA stands, joined by hydrogen bonds between the nucleotides and running antiparrallel to each other form a double helix s...

Answered by Annie A. • Biology tutor

11411 Views