Top answers

What is homeostasis?

Homeostasis is defined as the maintenance of a constant internal environment in the body. An example of this would be the blood glucose level: After a meal, a person's blood glucose level would be high. This...
LS
Answered by Lauren S. • Biology tutor
5638 Views

How do I know how many roots a quadratic equation has?

Let ax 2 + bx + c = 0 be the equation in question where a,b,c are real numbers with a not equal to 0 (otherwise we would not have a quadratic). If: b 2 - 4ac > 0 then there are two (real) roots b 2 - 4ac ...
AG
Answered by Amit G. • Maths tutor
10440 Views

What is the difference between descriptive and analytical writing? Which is better?

In order to break into the top bands in any GCSE literature essay, a student must write analytically, not descriptively. Rather than merely detailing what has happened in a story, one should strive to explai...
NO
Answered by Nicholas O. • English tutor
8353 Views

A 2 kW electric fire is switched on for 30 minutes. How many Units of electricity does it use?

Units of electricity are measured in kWh (kilowatt-hours). We have our power in kW (2 kW) We have our time in minutes (30 minutes) Looking at the units, we can see that: kW x minutes = kWminutes (kWm) and kW...
AW
Answered by Andrew W. • Physics tutor
20974 Views

Given that 346 × 27 = 9342 , work out 34.6 × 2.7

Lets compare the numbers in the question: 34.6 x 2.7 is the same as 346/10 x 27/10 (decimal to fraction) therefore... 34.6 x 2.7 is the same as ( 346 x 27 ) /100 (multiplying top & bottom) so if 346 × 27...
AW
Answered by Andrew W. • Maths tutor
7902 Views