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faltersainse [42]
3 years ago
15

The height of a triangle is 15cm, the base is 40cm and the other two side are 25cm.

Mathematics
1 answer:
morpeh [17]3 years ago
6 0
The formula for the area of a triangle is base*height/2. So lets input the number.

15*40=600/2=300 cm2
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Explanation:

I'll use x in place of p.

The original equation 10x^2-5x = -8 becomes 10x^2-5x+8 = 0 after moving everything to one side.

Compare this to ax^2+bx+c = 0

We have

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Plug those three values into the discriminant formula below

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d = 25 - 320

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The discriminant is negative, which means we have no real solutions. If your teacher has covered complex or imaginary numbers, then you would say that the quadratic has 2 complex roots. If your teacher hasn't covered this topic yet, then you'd simply say "no real solutions".

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The "Rule of 72" is a easy way to calculate how much time an investment will take to double with a given fixed annual rate of interest.

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