Search our library of homework questions

Top answers

All subjects

All levels

Describe the reflex arc in response to the hand touching a burning hot stove. Include the names and a description of location and function of all neurons involved. Bullet points are sufficient.

All bold text gives marking pointsStimulus (burning hot stove)Receptor (thermoreceptor in skin) detects stimulusSensory neurone - relays...

Answered by Jonathan V. • Biology tutor

3723 Views

LOWER TIER a) Multiply the following out: (x+3)(x-4). b) Factorise the following equation into two bracket form: x^2+7x+12

a) Use FOIL to multiply out these bracketsF: x²O: -4xI: +3xL: -12 x²-4x+3x-12 = x²-x-12b) Find two common numbers that ADD UP to give +7, and MULTIPLY TOGETHER to give 12<...

Answered by Jonathan V. • Maths tutor

2452 Views

HIGHER TIER a) Factorise the following equation into two bracket form: 2x^2-5x-12. b)2x^2-5x-12=0. Solve this equation to find the values of x, using your answer to part a). BONUS c) Sketch the function y=2x^2-5x-12, showing any x intercepts

a) Find two common numbers that ADD UP to give -5, and MULTIPLY TOGETHER to give (2*-12=) -24MULTIPLY TO -24 -1 and 24 1 and -24 -2 and 12 2 and -12 3 and -8 -3 and...

Answered by Jonathan V. • Maths tutor

3215 Views

Solve the equation ((2x+3)/(x-4)) - ((2x-8)/(2x+1)) = 1. Give your answer to 2 decimal places.

Multiply both sides of the equation by the denominators to get:(2x+3)(2x+1) - (2x-8)(x-4) = (x-4)(2x+1)Expand all the brackets to get:(4x^2 + 6x + 2x + 3) - (2x^2-8x-8x+32) = 2x^2-8x+x-4Simplify both side...

Answered by Natalie S. • Maths tutor

2725 Views

What are the four chambers of the heart and what is the order blood flows through them?

The four chambers of the heart are the right atrium, right ventricle, left atrium and left ventricle.Deoxygenated blood (blood with no oxygen) flows into the right side of the heart via the superior and i...

Answered by Kirk C. • Human Biology tutor

9405 Views