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Expand and simplify (x+4)(x+5).

First, we need to expand the brackets out. To do this first times the x term in (x+4) by everything in the other brackets. We need to make sure to do this term by term. This will give us x^2+5x. Next, we ...

Answered by Peter G. • Maths tutor

10116 Views

When do you use the conditional tense in Italian?

The conditional tense is used to express hypothetical or probable situations. As a rule of thumb, in English when we say phrases such as 'should' or 'would' it corresponds to the Italian conditional tense...

Answered by Gabriel B. • Italian tutor

1538 Views

Rectangle ABCD has sides 2x+5 and x+2 with rectangle EFGH of sides x+3 and x cut out of it. The total area of shape ABCD is 5cm^2. Show that 0 = x^2 + 6x +5 [5 Marks]

Area of ABCD = (2x+5)(x+2) = 2x² +9x +10Area of EFGH = (x+3)(x) = x² + 3xTotal Area = 5 = ABCD - EFGH = 2x² +9x +10 - x² - 3x 5 = x² + 6x +10 0 = x

Answered by Arad S. • Maths tutor

2757 Views

Describe the operation of a D-Type Flip Flop [6 Marks]

On the rising edge of the clock (Ck) the signal at D is copied to output QQ^BAR is the opposite logic state as QSet (S) and Reset (R) are priority inputsWhen S is high, Q is forced highWhen R is...

Answered by Arad S. • Electronics tutor

1389 Views

What is the tripartite analysis of knowledge? Is it succesful?

The tripartite analysis of knowledge suggests that there are three criteria which must be met in every case of knowledge, and that every time these three criteria are met one has a genuine case of knowled...

Answered by Joe P. • Philosophy tutor

5372 Views