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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 ther...

JC
Answered by James C. Maths tutor
9305 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. Enclo...

ER
Answered by Emily R. Biology tutor
9760 Views

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

AC
Answered by Alexis C. Computing tutor
18065 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
2462 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 ...

JM
Answered by Jack M. Maths tutor
4140 Views

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