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3 years ago

Please help me and my daughter.

Mathematics

2 answers:

valina [46]3 years ago

7 0

Step-by-step explanation:

3x2−7x−20=03x2-7x-20=0

Use the quadratic formula to find the solutions.

−b±√b2−4(ac)2a-b±b2-4(ac)2a

Substitute the values a=3a=3, b=−7b=-7, and c=−20c=-20 into the quadratic formula and solve for xx.

7±√(−7)2−4⋅(3⋅−20)2⋅37±(-7)2-4⋅(3⋅-20)2⋅3

Simplify.

Tap for more steps...

x=7±176x=7±176

The final answer is the combination of both solutions.

x=4,−53

garri49 [273]3 years ago

3 0

Answer:

you can either factorise or use tge formula method

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yuradex [85]

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Step-by-step explanation:

According to the question,

The probability that male professional golfer makes hole in one will be:

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$=9.7\times 10^{-10}$

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