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2 years ago

6a2 + 8a - 25 = -3 Using the Quadratic Formula

Mathematics

1 answer:

drek231 [11]2 years ago

4 0

Answer:

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6a^{2}+8a-25=-3

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Step-by-step explanation:

0/3

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Each subinterval has width $\dfrac{2-0}4=\dfrac12$ . The area of the trapezoid constructed on each subinterval is $\dfrac{f(x_i)+f(x_{i+1})}4$ , i.e. the average of the values of $x^2$ at both endpoints of the subinterval times 1/2 over each subinterval $[x_i,x_{i+1}]$ .

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$=\displaystyle\sum_{i=1}^4\frac{\left(\frac{i-1}2\right)^2+\left(\frac i2\right)^2}4=\frac{11}4$

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3 years ago

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