Find the inequalities for every word problems and after match

1 answer:

4 0

1b ONLY LESS THAN
2c ONLY MORE THAN
3a HIGHEST means less than OR equal to
4d 7.54 miles OR MORE means greater than or equal to

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WRITE A SUMMARY OF CUMULATIVE FREQUENCY.<br> (15pts)

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Step-by-step explanation:

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Solve for X in the equation

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Answer:

Fourth option: x=1±√47

Step-by-step explanation:

This is a quadratic equation, then we must equal to zero: Subtracting both sides of the equation x², 5x, and 39:

$2x^{2}+3x-7-x^{2}-5x-39=x^{2}+5x+39-x^{2}-5x-39$

Subtracting like terms:

$x^{2}-2x-46=0$

Applying the quadratic formula:

$ax^{2}+bx+c=0; a=1, b=-2, c=-46$

$x=\frac{-b+-\sqrt{b^{2}-4ac}}{2a}\\ x=\frac{-(-2)+-\sqrt{(-2)^{2}-4(1)(-46)}}{2(1)}\\ x=\frac{2+-\sqrt{4+184}}{2}\\ x=\frac{2+-\sqrt{188}}{2}\\ x=\frac{2+-\sqrt{4(47)}}{2}\\ x=\frac{2+-\sqrt{4}\sqrt{47}}{2}\\ x=\frac{2+-2\sqrt{47}}{2}\\ x=\frac{2}{2}+- \frac{2\sqrt{47}}{2}\\ x=1+-\sqrt{47}$