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4 years ago

Please answer this question, will give brainliest!

Mathematics

1 answer:

Yuliya22 [10]4 years ago

4 0

Answer:

Step-by-step explanation:

If MN is tangent of a circle then the angle M is a right angle.

We have a dimeter of acircle d = 8 cm.

Therefore the radius CM = 8 cm : 2 = 4cm.

In a right triangle CMN use the Pythagorean theorem:

$CM^2+MN^2=CN^2$

Substitute CM = 4cm and CN = 9.9 cm:

$4^2+MN^2=9.9^2$

$16+MN^2=98.01$ <em>subtract 16 from both sides</em>

$MN^2=82.01\to MN=\sqrt{82.1}\\\\MN\approx9.1$

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strojnjashka [21]

Answer:

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4 years ago

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3 years ago

lys-0071 [83]

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4 years ago

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Dafna1 [17]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

Plz help brain fam!

Liono4ka [1.6K]

What would make finding the answer a bit easier, is converting them into improper fractions. You would turn that first fraction to $\frac{-9}{4}$ and the second fraction to $\frac{-3}{2}$ . (You are dividing a negative by a negative, therefore, your answer would be a positive.

Let's follow the procedure of keeping, switching, and flipping. You keep the first improper fraction, switch the division sign to a multiplication sign, and flip the second fraction. That would make it : $\frac{-9}{4}$ × $\frac{-2}{3}$ .

You multiply the 9 and the 2, you get 18. You multiply the 3 and the 4, you get 12. That makes it $\frac{18}{12}$ . This, converted to a mixed fraction, makes 1 $\frac{6}{12}$ ., which is the same as 1 $\frac{1}{2}$ . Your answer is the SECOND CHOICE.

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3 years ago

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