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The sides of a right triangle are equal to A=3 cm, B=4 cm. The hypotenuse of a second triangle similar to the first one is 15 cm. Find sides of the second triangle.

Firstly based on the Pythagoras Theorem which claims that the square of the hypotenuse is equal to the sum of the squares of the other two sides, we will find the hypotenuse of the first triangle. To make th...
EX
Answered by Esma X. • Maths tutor
2818 Views

When rolling two dice, what is the probability of rolling 7?

16.7% or 1/6.The combinations for (dice 1, dice 2) which total 7 are: (6,1), (5,2), (4,3), (3,4), (2,5), (1,6).Total possible cocmbinations = 36.Hence 6/36=1/6=0.166... or 16.7%
KJ
Answered by Krzysztof J. • Maths tutor
3195 Views

(x + a)(x + 3)(2x+1) = bx^3 + cx^2 + dx -12, find the values of a, b, c and d.

This question is an example of expanding algeba and equating coefficients. If the brackets on the left-hand side are expanded the unknown values can be found from the coefficients on the right-hand side.Step...
JS
Answered by Joe S. • Maths tutor
8077 Views

5 Footballs and 3 tennis balls cost £2.30, 4 Footballs and 2 tennis balls cost £1.80. What is the total cost of 1 football and 1 tennis ball?

(simple algebraic substitution equations) assign each an algebraic term to form equations > footballs = f, tennis balls = tequation 1 > 5f + 3t = £2.30equation 2 > 4f + 2t = £1.80 (you could multipl...
TC
Answered by Troy C. • Maths tutor
4022 Views

Rationalise the denominator of 14 / 2 + root3

The denominator in this equation is irrational. This can be seen by the fact that we have a surd (root 3) present, which cannot be expressed as a fraction as is therefore not rational. In order to rationalis...
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Answered by Emily T. • Maths tutor
6375 Views