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Solve x^2+6x-7 by completing the square.

We know that to complete the square we put the equation in the form (ax+b)^2+c=0. So we must do that to our equation. We will begin by establishing what will be within our squared brackets. As there is no co...
JC
Answered by James C. • Maths tutor
10606 Views

Describe the structure of a typical animal cell and explain the functions of its components. How does this compare to the structure of a plant cell?

Cells are the smallest unit of life that make up every living thing. A typical animal cell is made up of a cell membrane, which maintains its structure and controls what goes in and out of the cell. Enclosed...
ER
Answered by Emily R. • Biology tutor
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What is Control Flow in a Computer Program?

Control Flow is the order in which elements of a computer program - instructions, statements and function calls - are executed and evalutated. In a computer program, actions will run in sequence , one after ...
AC
Answered by Alexis C. • Computing tutor
19019 Views

Which of the following are usually found on the Central Processing Unit(CPU) of a personal computer?

Hard disk drive - No Control Unit - Yes RAM - No Arithmetic Logic Unit (ALU) - Yes BIOS - Yes Registers - Yes ROM - No
JM
Answered by Jack M. • Computing tutor
2699 Views

Rearrange the following to make 'W' the subject: aw + 3 = 4(bw + 5)

aw + 3 = 4(bw + 5) Let's get rid of those brackets... aw + 3 = 4bw + 20 Now we rearrange... aw - 4bw = 17 Factorise... w(a - 4b) = 17 Final rearrange... w = 17 / (a - 4b) Done.
JM
Answered by Jack M. • Maths tutor
4509 Views