mckenzieandjesus
  • mckenzieandjesus
is tangent to circle O at B. What is the length of the radius r? Round to the nearest tenth. 15.4 6.1 1.7 2.9
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
mckenzieandjesus
  • mckenzieandjesus
1 Attachment
mckenzieandjesus
  • mckenzieandjesus
@jim_thompson5910
mckenzieandjesus
  • mckenzieandjesus
@Hero

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

Hero
  • Hero
@mckenzieandjesus, What kind of triangle is ABO?
mckenzieandjesus
  • mckenzieandjesus
acute?
mckenzieandjesus
  • mckenzieandjesus
wait a right?
Hero
  • Hero
If segment AB is tangent to circle O at point B, what does that say about segments AB and OB? Yes, it is a right triangle. Which means what?
mckenzieandjesus
  • mckenzieandjesus
its 90 degrees
mckenzieandjesus
  • mckenzieandjesus
AB and OB are equal?
Hero
  • Hero
Well, you're given two sides of the right triangle and need to find the length of the third side. What rule do we use for this situation?
mckenzieandjesus
  • mckenzieandjesus
Pythagorean theorem?
mckenzieandjesus
  • mckenzieandjesus
a2 + b2 = c2?
Hero
  • Hero
Exactly. \(a^2 + b^2 = c^2\)
mckenzieandjesus
  • mckenzieandjesus
\[10 ^{2}+11.7 ^{2} = 236 \frac{ 89 }{ 100 }\]
mckenzieandjesus
  • mckenzieandjesus
236 89/100^2 = 56116.8721
Hero
  • Hero
Actually, you have to find the correct "a", "b" and "c" when using the pythagorean theorem.
mckenzieandjesus
  • mckenzieandjesus
how do i do that?
Hero
  • Hero
"a" and "b" are always the "legs" of the right triangle. "c" is always the hypotenuse. Sometimes, they give you "a" and "c", but not "b".
mckenzieandjesus
  • mckenzieandjesus
10+1.7= 11 7/10
mckenzieandjesus
  • mckenzieandjesus
can u help with this one? Point P is the center of two concentric circles. PQ = 10.5 and PS = 20.9. RS is tangent to the smaller circle and a chord of the larger circle. What is length of RS to the nearest tenth? 36.1 41.4 31.4 41.8
1 Attachment
Hero
  • Hero
Your work for the problem you originally posted is not correct.
mckenzieandjesus
  • mckenzieandjesus
this one?
Hero
  • Hero
ya, this one.
mckenzieandjesus
  • mckenzieandjesus
i did it wrong? how?
mckenzieandjesus
  • mckenzieandjesus
10^2+1.7^2= 102 89/100?
mckenzieandjesus
  • mckenzieandjesus
@Hero
Hero
  • Hero
I thought you already learned about right triangles. I'm going to say it again. Sometimes, you're given "c" instead of "b", which means, if you have something like a = 3 c = 5 then you have to solve for b: a^2 + b^2 = c^2 3^2 + b^2 = 5^2 b^2 = 5^2 - 3^2 b^2 = 25 - 9 b^2 = 16 b = 4
mckenzieandjesus
  • mckenzieandjesus
i got 132.89 how do i make it smaller?
mckenzieandjesus
  • mckenzieandjesus
11.5?
mckenzieandjesus
  • mckenzieandjesus
10^2+11.5^2= 232 1/4
mckenzieandjesus
  • mckenzieandjesus
232.25
mckenzieandjesus
  • mckenzieandjesus
still lost.. @Hero
mckenzieandjesus
  • mckenzieandjesus
@pooja195
Hero
  • Hero
Yes, I can tell. I think I know something that might be useful for you. Try ixl.com
mckenzieandjesus
  • mckenzieandjesus
ok..
mckenzieandjesus
  • mckenzieandjesus
@jim_thompson5910
mckenzieandjesus
  • mckenzieandjesus
i did it in the steps u showed me @Hero
Hero
  • Hero
In this case, a = r b = 10 c = 11.7 So \(a^2 + b^2 = c^2\) becomes: \(r^2 + 10^2 = 11.7^2\) You subtract 10^2 from both sides: \(r^2 = 11.7^2 - 10^2\) Then square root both sides to get \(r = \sqrt{11.7^2 - 10^2} \)
Hero
  • Hero
You'll have to finish simplifying \(r\) on your own. I'm not going to do that for you. Just let me know what you get. I'll say whether or not it's right or wrong.
mckenzieandjesus
  • mckenzieandjesus
square root 11.7^2-10^2 = 6.073713856?
mckenzieandjesus
  • mckenzieandjesus
6.1?
Hero
  • Hero
Correct.

Looking for something else?

Not the answer you are looking for? Search for more explanations.