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2 years ago

13

An exercise class has two options a $25 pass for all sessions during the month or $3 per lesson. How many lessons do you need to

attend for the pass to be cheaper? Explain.

1 answer:

Naya [18.7K]2 years ago

6 0

Answer:

3+3=6+3=9+3=12+3=15+3=18+3=21+3=24+3=27

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The equation $ax^2+bx+c=0$ has it's solutions given by $x= \frac{-b \pm \sqrt{b^2-4ac}}{2a}$ . This is the quadratic formula.

Looking at your equation we see a=1; b=-3 and c=-6 so by the quadratic formula,
$x = \frac{-(-3) \pm \sqrt{(-3)^2-(4 \times 1 \times -6)}}{2 \times 1} = \frac{3 \pm \sqrt{9+24}}{2}$

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lutik1710 [3]

Answer:

A and D and E

Step-by-step explanation:

Substitute the variable(in this case) <em>t</em> for 3, then use the order of operations to simplify(PEMDAS), which will give you 33 for both expressions. To see if two expressions are equivalent, you need to substitute the variable for an odd number AND an even number, so next, substitute the variable <em>t </em>for the number 6, which will give you 51 for both expressions. That means the expressions are equivalent

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The answer is -1/16 or -0.0625, do you need to see work?

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