Answer:
straight ?
Step-by-step explanation:
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.
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!
Answer:
Nora received <u>35</u> purple pins.
Step-by-step explanation:
If Nora received 50 pins, and 70% of the pins were purple, to calculate the number of purple pins Nora received, we must find 70% of 50.
To find 70% of 50, we can multiply 50 by the decimal form of 70%:
Therefore, we can conclude that since 70% of the 50 pins Nora received were purple, and 70% of 50 is 35, Nora received 35 purple pins.
Answer:
r^2 + 6rs - 4rd - 2d^2 + 3s^2
Step-by-step explanation:
3(r+s)^2 - 2(r+d)^2
PEMDAS
parenthesis, exponents, multiplication, division, addition, subtraction
in that order
3( r^2 + 2rs + s^2 ) - 2(r^2+ 2rd + d^2)
3r^2 + 6rs + 3s^2 - 2r^2 - 4rd - 2d^2
r^2 + 6rs - 4rd - 2d^2 + 3s^2