Top answers

What is the equation for aerobic respiration in humans?

glucose+oxygen-->water+carbon dioxide c6h12o6+6o2-->6h2o+6co2
ME
Answered by Mara E. • Biology tutor
4651 Views

Triangle ABC is a triangle with a right angle at vertex B. Length BC = 6cm and angle A = 30 degrees. How long is length AC?

Draw the triangle. BC is opposite to the angle given and we need to find the hypotenuse. Using SOHCAHTOA, we must use sine. Rearrange to find hypotenuse and then put the numbers in. Length AC = 12cm
CC
Answered by Courtney C. • Maths tutor
3982 Views

Where does the quadratic formula come from?

First take the general form of a quadratic equation, ax^2+bx+c=0, this can be written in completed square form, (x+b/2a)^2-(b/2a)^2+c/a=0, rearranging gives, x=-b/2a +/-(b^2/4a^2-c/a)^1/2, which can be writt...
BC
Answered by Becky C. • Maths tutor
4806 Views

Define relative formula mass (Mr) and calculate the relative formula mass of CaCO3. (Ar: Calcium= 40; Oxygen= 16; Carbon= 12)

The relative formula mass (Mr) of a compound is the sum of the relative atomic masses of the atoms in the numbers shown in the formula. Relative formula mass (Mr) of CaCO3 = 40+12+(3x16)=100.
CM
86441 Views

How does the body regulate heat?

Body temperature is regulated by a thermoregulatory centre in the brain, the hypothalamus. The hypothalamus can sense the temperature of the blood via receptors. The skin also contains temperature receptors ...
NC
Answered by Natasha C. • Biology tutor
3209 Views