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hodyreva [135]
3 years ago
9

Joe went to the hobby shop and bought 2 model sports cars at $8.95 each and some paints. If he spent a total of $23.65, what was

the cost of the paints
Mathematics
1 answer:
Gala2k [10]3 years ago
8 0
Since he bought 2 model cars for $8.95 each, he bought both for $17.90. Now, subtract this from the total cost to get the cost of paint. $23.65-$17.90=$5.75. So, the total costs of paints are $5.75. Hope this helped!
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Verify that the roots of 5x²- 6x -2 = 0 are <img src="https://tex.z-dn.net/?f=%5Cfrac%7B3%20%2B%20%5Csqrt%7B19%7D%20%7D%7B5%7D%2
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Answer:

Proof below.

Step-by-step explanation:

<u>Quadratic Formula</u>

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<u>Given quadratic equation</u>:

5x^2-6x-2=0

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<u>Substitute</u> the defined variables into the quadratic formula and <u>solve for x</u>:

\implies x=\dfrac{-(-6) \pm \sqrt{(-6)^2-4(5)(-2)}}{2(5)}

\implies x=\dfrac{6 \pm \sqrt{36+40}}{10}

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\implies x=\dfrac{6 \pm \sqrt{4}\sqrt{19}}{10}

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Therefore, the exact solutions to the given <u>quadratic equation</u> are:

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Learn more about the quadratic formula here:

brainly.com/question/28105589

brainly.com/question/27953354

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