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1. a) the equation of a line is y=A^x. A is the point where the line intersects the y axis. Find A. then Q15 https://revisionmaths.com/sites/mathsrevision.net/files/imce/1MA1_3H_QP.pdf

a) on the y axis, x=0. sub x=0 into y=A^xtherefore y=A^0 = 1 so A is at (0,1) 15) WILL USE DIAGRAM so firstly, we need an equation linking the area of the triangle to the information we are given(two sides a...
RD
Answered by Reena D. • Maths tutor
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What is the difference between soy and estoy?

Soy comes from the verb ser , whilst estoy comes from estar . This may sound quite complicated, but it’s really simple! Soy We use soy when we are talking about permanent things , things that do not change f...
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Answered by Theo W. • Spanish tutor
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Why can you not divide expressions by common factors?

With equations, e.g. 4x = 12, the 4x variable has a given value. This means you can apply the same changes to both sides (at the same time). For example, both sides can be divided by 4 to give x=3 However ex...
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Answered by Fatima M. • Maths tutor
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What is the purpose of mitochondria in the cell?

Mitochondria is the power house of the cell, it's a membrane bound organelle which generates energy for cellular activity (e.g. protein production) by generation of ATP through aerobic (requires oxygen) resp...
IR
Answered by Imade R. • Biology tutor
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Solve the following simultaneous equation: y= x^2 - 3x + 4 y - x = 1

When it comes to solving simultaneous equations the way you structure your working out will really help you get to the correct answer. The layout can be used for all simultaneous equations and will make even...
AP
Answered by Anisha P. • Maths tutor
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