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3 years ago

Find the solutions to the following equation by using the quadratic formula . 2x^2+14x+20=216

Mathematics

1 answer:

vampirchik [111]3 years ago

7 0

Answer:

x = 7 , − 14

Step-by-step explanation:

I believe this is correct.

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Anyone know? its due tonight

Olegator [25]

Answer:

12 cm

Step-by-step explanation:

Well first we can cut the triangle in half and use the Pythagorean theorm

a^2+b^2=c^2

In this case we are going to be doing c^2-a^2=b^2

10^2-8^2=b^2

(10*10)-(8*8)=b^2

100-64=b^2

36=b^2

Now we just square root 36 (what number times itself is 36)

$\sqrt{36}$

b=6

Since half of the one side equals 6 (DC) then the length of AC is 12!

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Korvikt [17]

Answer:

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Lilit [14]

Answer:

Today: Wednesday, 04 November 2020

Hour: 19.15 WIB (Indonesia)

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The answer would be "both groups show about the same average time"

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