Search our library of homework questions

Top answers

All subjects

All levels

Integrate (3x^2 - (1/4)x^-2 + 3) dx

3x²-(1/4)x^-2+3
Split the problem into three separate terms and integrate independently.With any term where x is to the power of something, divide the coefficient by the value of...

Answered by Lucy L. • Maths tutor

4709 Views

What is 4536000 in words and what is that number to 3 significant figures?

In words: four million five hundred and thirty six thousand 3 S.F : 4540000

Answered by Billy W. • Maths tutor

3927 Views

a) Name a hormone secreted by the ovaries (1 mark). b) A female takes a contraceptive pill that increases the body's levels of progesterone. Explain what effects this has on the female's body and what effects that it has on her other hormones (3 marks)

a) Oestrogen or Progesterone b) FSH stimulates follicles in the ovaries to mature while progesterone has a "maintenance" function as it maintains the lining of the uterus. Progesterone also has ...

Answered by Tom H. • Biology tutor

2959 Views

Solve to find x: 32x + 43 = -8x - 17

In order to find 'x', one must be able to isolate x on one side of the equation. This would be achieved firstly by adding +8x to both side of the equation:The left hand side would thus look like this: 40x...

Answered by Francis B. • Maths tutor

3695 Views

Katie buys: 3 pens costing £2.20 each, 1 rubber costing £1.60 and 2 pencils. She pays with a £10 note and a £2 coin. She gets 20p change. What was the price of each pencil?

You can put this question into the form of an equation in order to solve it.Step 1: The total cost of the items is (10+2)-0.20= £11.80. Step 2: putting it in equation form: let x be the price of 1 pencil,...

Answered by Juliette W. • Maths tutor

4162 Views