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As distance is equal to speed multiplied by time, the distance Paul has traveled is 90 multiplied by T, or 90T. As Mary is making the same journey, she travels the same distance. The distance she...
To simplify a surd, remember thatsqrt(a*b) = sqrt(a)sqrt(b)If either a or b are square numbers, you can simply write its square root. Hence, to simplify a surd, you must look for any ...
E.g you have 2 equations and have to set them equal to each other. 2x + 3y = 6 -3x + y = 2
multiply first equation by 3, second by 2 to get 6 x + 9y = 18 -6 x +...
When you differentiate, the constant disappears, because it is not dependent of the variable. So when you integrate, you have to add the constant again. However, you can't know the vaulue of c without ...
For all quadratic equations, you can use the quadratic formula. Given an equation of the form ax2+bx+c, you can plug those va...
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