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Solve the simultaneous equations. x^2 + y^2 = 29. y-x = 3

The 2 equations are: 1) x 2 + y 2 = 29 2) y-x=3 In this kind of simultaneous equation, you cannot take it away from each other. Instead, you need to substitue. To do so, rearrange the 2nd equation to make x ...
PS
Answered by Pallave S. • Maths tutor
14687 Views

How do I use the bow-tie circle theorem?

To explain this question, I would first draw a digram of a circle. Then I woud add a chord and create triangles with vrtices at the circumference of the circle which all have the chord as a base. Next, I wou...
IT
Answered by Ivana T. • Maths tutor
8564 Views

Using the following quadratic equation, find x: x2 + 3x -4

x 2 +3x -4. (x + a) (x - b) x has no co-efficient so each is 1 x. next find two numbers with a product of -4 and a sum of +3. cannot be 2,2 as these numbers have a sum of -4, 0 or +4 depending on whether the...
JC
Answered by Jake C. • Maths tutor
4441 Views

Alice drops an apple from a height of 2 m above the ground. Assuming there is no air resistance, what is the speed of the apple when it hits the ground?

Since there is no loss of energy to air resistance and the apple is freely falling under the influence of gravity, this is an example where we can apply the principle of conservation of energy. In the initia...
OD
Answered by Oana D. • Physics tutor
3760 Views

How do I know when to use the Imperfect Tense in Spanish?

In general, the imperfecto is used to talk about past actions, conditions, or what you would consider background information. It can also be used to describe events that occured repeatedly or habitually or t...
NG
Answered by Nina G. • Spanish tutor
2795 Views