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mafiozo [28]
3 years ago
7

Need with number 7!

Mathematics
1 answer:
topjm [15]3 years ago
7 0

Answer: 6

SOLUTION

∵segment\frac{}{AB}is tangent to the circle at point C.

∴∠MCA=∠MCB=90°

Suppose \frac{}{MC} =x

From the Pythagorean theorem

MA²=9²+x²

MB²=4²+x²

∴MA²+MB²=AB²

i.e. x^{2} +9^{2} +4^{2} +x^{2} =(9+4)^{2} \\2x^{2} +97=169\\2x^{2} =72\\x^{2} =36\\x=6

We conclude that x=6=\frac{}{MC}

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Two numbers multiply to be -50 and add to 0
sineoko [7]

Clever !

The two square roots of  50  will do that.
They are irrational numbers, so I can't write down their exact values.
They are approximately  +7.0711  and  -7.0711  (rounded) .

3 0
2 years ago
Find the distance between points M(-7,5) and Z(2,-3)
julsineya [31]

Hey there! I'm happy to help!

To find the distance between two points, you find the difference between the x values, square that, find the difference between the y values, square that, add the two numbers you got, and then find the square root.

We find the difference between the x values.

-7-2=-9

Square it.

-9²=81

We find the difference between the y-values.

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5+3=8

We square it.

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We add the numbers we got.

81+64=145

We square root.

√145≈12.04

This formula comes from the Pythagorean Theorem! Now you can find the distance between any two points! Have a wonderful day! :D

8 0
3 years ago
What is a difference of squares that has a factor of x + 8?
Goshia [24]
Hello,

x²-64=(x+8)(x-8)
============
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3 years ago
A right triangle is displayed.
Mazyrski [523]

Answer:

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X=1119/2 hope this helps :)
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