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3 years ago

These are the last 2 problems i need help with ‍♂️

Mathematics

1 answer:

Ierofanga [76]3 years ago

5 0

Hello,

First equation: (2x^(3)+4x-8)+(-6x^(3)-7x+4)

Combine like terms : -4x^(3) - 3x - 4

Second equation: (2x^(2)+4x-8)-(-6x^(2)-7x+2)

Combine like terms: 8x^(2) + 11x - 10

Faith xoxo

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jeka94

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Explanation:

The diameter of the circle is $2 \frac{1}{3} \mathrm{km}$

Now, we shall find the circumference of the circle.

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Where C is the circumference , $\pi$ is 3.14 and $d=2 \frac{1}{3} \mathrm$ is the diameter of the circle.

The exact circumference of the circle is given by

$\begin{aligned}C &=\pi d \\&=(3.14)\left(2 \frac{1}{3}\right) \\&=(3.14)\left(\frac{7}{3}\right) \\&=\frac{21.98}{3}\end{aligned}$

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$C=7 \frac{49}{150}$

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The approximate value of the circumference can be determined by dividing the value $\frac{1099}{150}$

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$C=7.33km$

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