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Give the value of 15^0.

15 0 = 1 Anything to the power of 0 is always 1. See the examples below: 10 0 = 1; 25 0 = 1; 50 0 = 1.
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Answered by Ellie P. • Maths tutor
12401 Views

Solve simultaneously 2x-y=2, 3x+2y=17 to calculate values of x and y.

This problem can be solved through substitution. The first equation provided in the question should be rearranged to give y=2x-2. This equation for y can be directly substituted into the second equation. Thi...
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Answered by Wasif R. • Maths tutor
6759 Views

Solve the simultaneous equation: 4x-11y=34 and 2x+6y=-6

When solving a simultaneous equation, we will use the elimination method. This method sees us removing or ‘eliminating’ the x or y term. First we need to find the lowest common multiple of the x and y terms ...
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Answered by Charlie B. • Maths tutor
3696 Views

Will a solid ionic compound conduct electricity ?

Electricity is conducted by electrons or ions. In order for an ionic compound to conduct electricity, the ions must be able to move freely and carry the charge throughout the solution. A solid ionic compound...
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Answered by Sabah R. • Chemistry tutor
2795 Views

Find the roots of 2x^2-2x=3, leaving your answer in it's simplest exact form.

First we need to rearrange our equation so it is in the correct form of ax 2 +bx+c=0.So we'd move the 3 over to the left hand side to give us 2x2-2x-3=0.We need to use the quadratic formula. Using x=( -b+/-(...
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Answered by Jake A. • Maths tutor
5229 Views