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algol [13]
3 years ago
13

Danielle has taken five math tests so far this year. The tests are out of twenty points, and she has gotten the following scores

. 17, 19, 20, 14, 16 What is the median of her scores? 17.2 no mode 6 17
Mathematics
2 answers:
dusya [7]3 years ago
6 0
14, 16, 17, 19, 20
17 is the middle one so the answer is 17
 
Hope this helps :)

Tpy6a [65]3 years ago
4 0
17 would be the median of her scores.
Hope this helps!
~Mistermistyeyed.
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Answer:

Proof below.

Step-by-step explanation:

<u>Quadratic Formula</u>

x=\dfrac{-b \pm \sqrt{b^2-4ac} }{2a}\quad\textsf{when }\:ax^2+bx+c=0

<u>Given quadratic equation</u>:

5x^2-6x-2=0

<u>Define the variables</u>:

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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}

\implies x=\dfrac{6 \pm \sqrt{76}}{10}

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

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

\implies x=\dfrac{6 \pm2\sqrt{19}}{10}

\implies x=\dfrac{3 \pm \sqrt{19}}{5}

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

x=\dfrac{3 + \sqrt{19}}{5} \:\textsf{ and }\:x=\dfrac{3 - \sqrt{19}}{5}

Learn more about the quadratic formula here:

brainly.com/question/28105589

brainly.com/question/27953354

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The answer to this equation is no solution because 6 is NOT equal to 7.

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