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Leni [432]
3 years ago
15

A quadratic equation of the form 0 = ax2 + bx + c has a discriminant value of 0. How many real number solutions does the equatio

n have?
Mathematics
2 answers:
Dima020 [189]3 years ago
8 0
It has one solution. when discriminant=0, tangent to the curve( means touches at one point ) hence one solution.
MatroZZZ [7]3 years ago
3 0

we know that

the formula to solve a quadratic equation of the form ax^{2}+bx+c=0 is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}}{2a}

The discriminant is equal to

(b^{2}-4ac)

If the discriminant is equal to zero

then

(b^{2}-4ac)=0

substitute in the formula

x=\frac{-b(+/-)\sqrt{0}}{2a}

x=-\frac{b}{2a}-------> only one real number solution

therefore

<u>the answer is</u>

the number of solutions is equal to 1

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Answer:

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<u><em>In function composition, if we have two function f(x) and g(x) then </em></u>

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<u><em>Now we have c(w(h)), this means first we apply w(h) which will give us hours per week and then we'll apply function 'c' on the results of 'w' (that is number of hours for weeks painted). As result we'll get number of canvas </em></u>per week!

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