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Solve x^2 - 6x + 8 < 0

To see the answer more clearly, we can sketch the function. First, we start by sketching the parabola (curve). If we have a positive x^2 term then we have a U shaped parabola and if it is negative, i.e. -...

RW
Answered by Rachel W. Maths tutor
12496 Views

Evaluate 3 /5 + 1/ 4

5×4=20 common denominator what did you do to 5 to get to 20? X4, therefore you have to 3x4=12what did you do to 4 to get to 20? X5, therefore you have to 1x5=5
12/20 + 5/20= 17/20

VK
Answered by Vickie K. Maths tutor
2663 Views

Describe Atkinson & Shiffrin's (1968) Multi Store Memory Model

The Atkinson & Shiffrin Multi Store Model of Memory is a structural model that helps to explain how information is transferred from the environment into our short-term and long-term memory. The model ...

RC
Answered by Raquel C. Psychology tutor
3912 Views

In what ways is the human heart not simply a mechanical pump?

The heart could be compared to a pump but the key differences lie in its exquisite ability to self control. Through local mechanisms (e.g. Frank-starling mechanism) and external mechanisms (e.g. neurol or...

1373 Views

Express 3sin(2x) + 5cos(2x) in the form Rsin(2x+a), R>0 0<a<pi/2

Start by expanding out Rsin(2x+a) using the addition formula for sin, sin(A+B) = sin(A)cos(B)+cos(A)sin(B). Substituting 2x = A and a= b, we get that Rsin(2x+a) = R(sin(2x)cos(a) + cos(2x)sin(a)) = Rcos(a...

MF
Answered by Michael F. Maths tutor
8784 Views

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