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likoan [24]
3 years ago
12

What is the length of CO?

Mathematics
1 answer:
posledela3 years ago
8 0

Answer:

Pythagorean theorem, eh?

Step-by-step explanation:

The way to do this is use the radius-tangent angle theorem thing...

It states that, a radius that intersects a point of tangency(I think that's what it's called) is perpendicular to the tangent. Thus, CW is perpendicular to OW!

Thus, it forms a right triangle, where we can use Pythagorean Theorem!

If you don't know what it is, check the internet! It's pretty simple.

CW^2+OW^2=OC^2\\144+81=OC^2\\225=OC^2\\OC=15

So, there you go! Hope this helps!

NOTE: This answer was recently deleted for violating community guidelines, so I just re-uploaded it!(and edited it) So if you do need more help, do some research!

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X^4-11x^2+18=0 factor
Ede4ka [16]

Answer:

(x² - 9)(x² - 2) = 0

x = 3 or √2

Step-by-step explanation:

To factor a polynomial, you need to find two expression that when multiplied together using FOIL (first, outside, inside, last) will produce the polynomial.  In this case the polynomial x^{4}-11x^{2}+18=0 can be factored into:

(x² - 9)(x² - 2) = 0

Setting each of these expressions equal to '0':

x² - 9 = 0 or x² = 9 so √x² = √9 or x = 3

x² - 2 = 0 or x² = 2 so √x² = √2 or x = √2

7 0
4 years ago
The length of human pregnancies from conception to birth is normally distributed with mean 266 days and standard deviation 16 da
Sidana [21]

Answer:

68 %

Step-by-step explanation:

(a) Using the 68-95-99.7% rule, between what two lengths do the most typical 68% of all pregnancies fall?

95%? 99.7%?

The middle 68% of all pregnancies last between 266-16 and 266+16 days, 250 to 282. The middle 95% of all

pregnancies last between 266-2*16 and 266+2*16 days, 234 to 298 (for future reference, note that this “rule” is  

rounded somewhat compared to the charts). The middle 99.7% of all pregnancies last between 266-3*16 and

266+3*16 days, 218 to 314.

3 0
4 years ago
9/10 - 1/2 can you help
Lubov Fominskaja [6]

Answer:

4/10 or 2/5

Step-by-step explanation:

9/10-1/2 = 9/10-5/10 = 4/10 = 2/5

4 0
3 years ago
Read 2 more answers
Some hot dogs come in packages of 8.why would a baker of hot dog buns package 7 hot dog buns to a package
Nadusha1986 [10]
Not sure what this has to do with maths, but probably because it would mean that people would have to buy 2 packs of hot dog buns just to get 8 hot dog buns, which makes him more money?
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3 years ago
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Andreyy89

Answer:

1 or all?

Step-by-step explanation:

U>U

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