Top answers

Find the integral between 1 and -2 for (4-x^2-3x^3)

= [4x - 1/3x 3 - 3/4x 4 ] 1 -2 = (4(1) - 1/3(1) 3 - 3/4(1) 4 ) - (4(-2) - 1/3(-2) 3 - 3/4(-2) 4 ) =(2 11/12) - (-8 + 8/3 - 12) =(2 11/12) - (-17 1/3) = 20 1 /4
AG
Answered by Alex G. • Maths tutor
3974 Views

Would you expect a calcium ion to be bigger, smaller or the same size as a calcium atom? Give TWO reasons to explain your answer.

Calcuim is in group two which means when it forms an ion it will donate its two outer elections, this means a calcium ion will be smaller as it has one less shell of electrons.
UC
Answered by Urma C. • Chemistry tutor
15735 Views

Respiration and photosynthesis-what are the similarities and differences?

Respiration in both animals and plants Photosynthesis only in plants Will explain further in interview
AA
Answered by Abuzar A. • Biology tutor
3204 Views

(x + 2)(x + 3)(x + 6)

First: (x + 2)(x + 3) = x 2 + 5x + 6 Second: (x 2 + 5x + 6)(x + 6) = x 3 + 5x 2 + 6x + 6x 2 + 30x + 36 = x 3 + 11x 2 + 36x +36 Answer: = x 3 + 11x 2 + 36x +36
UC
Answered by Urma C. • Maths tutor
3481 Views

State three differences between daughter cells produced by the process of mitosis and those produced by meiosis.

Meiosis is a type of cell division that only occurs in the sex organs, testes and ovaries, mitosis occurs in every cell in the body, these are somatic cells. Daughter cells are the cells that are produced as...
UC
Answered by Urma C. • Biology tutor
22003 Views