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konstantin123 [22]
2 years ago
9

Help math help plzz no links or imma report u . Helps 20 points

Mathematics
1 answer:
PSYCHO15rus [73]2 years ago
6 0

Answer:

its c .

Step-by-step explanation: :)

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Fins the zeroes of the quadratic equation : 4√ 5 x^ 2 - 24x - 9√ 5
liubo4ka [24]

Answer:

Step-by-step explanation:

Hello,

First of all, we know that the solution of the following equation

   ax^2+bx+c=0

are

   \dfrac{-b\pm\sqrt{b^2-4ac}}{2a} \ \text{ when } \Delta=b^2-4ac \geq 0

<em>I would suggest that you try to apply this formula first and check the solution only after you try.</em>

Let's apply it in this case, we have:

a=4\sqrt{5} \\ \\ b=-24 \\ \\ c= -9\sqrt{5}

\Delta=b^2-4ac=24^2+4*9*5=1296 \\ \\ \sqrt{\Delta}=36 \ \text{ and the solutions are } \\ \\ \\ x_1=\dfrac{24-36}{8\sqrt{5}}=\dfrac{-12}{8\sqrt{5}}=\boxed{\dfrac{-3}{2\sqrt{5}}} \\ \\x_2=\dfrac{24+36}{8\sqrt{5}}=\dfrac{60}{8\sqrt{5}}=\boxed{\dfrac{15}{2\sqrt{5}}}

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

5 0
3 years ago
how many deliveries at 6.00 a delivery, would need to be completed inorder to reach 5000 dollar goal?
vampirchik [111]

834 complete deliveries

6 0
2 years ago
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A softball pitcher pitches a ball at a speed of 74 miles per hour. What conversion factor can be used to find the speed of the b
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The answer would be 266400. If you would convert hrs into seconds.
7 0
3 years ago
Pls help with mathh!!!
sergeinik [125]

Answer: x<5

Step-by-step explanation:

If the circle was dark then it would be x is less than or equal to 5. But here, since the circle is open, that means that 5 is not a possible solution for x. The answer is x<5. Hope this helps!

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2 years ago
PLEASE HELP me with this &lt;3
babunello [35]

Answer:

Step-by-step explanation:

410 ft i think

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2 years ago
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