In a trapezoid, with bases and
and height
, the area is given by
In your case:
so, the formula becomes
Since the area is , we have
If the two spinners below are spun, what is the probability that the numbers will match
1 answer:
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Hello!
*Solve the equation:
<span>**Separating the coefficients
</span><span>a = 3, b = -7 e c = 6
</span><span>***Calculating the value of the discriminant
</span>
*Solve the equation:
<span>**Separating the coefficients
</span><span>a = 3, b = -7 e c = 6
</span><span>***Calculating the value of the discriminant
</span>
Δ = b² – 4ac
Δ = (-7)² – 4.3.6
Δ = 49 – 72
Δ = - 23
p.s.: <span>Δ <0. When the discriminant is less than zero, there are no real roots.</span>