For this case, we have that by definition, the circumference of a circle is given by:
Where:
d: Is the diameter of the circle given by 2r, that is, twice the radius.
If we have a circle with a diameter equal to 8cm, then the circumference is given by:
ANswer:
Option C
Hi there!
We can find the zeros of a function by solving f(x) = 0. We find the following:
Add 300 to both sides.
Divide by 3.
Take the root and minus root of both sides.
Therefore, the zeros are
x = 10 and x = -10.
~ Hope this helps you!
3.9 x 10 ^-5 is the answer. 0.000039 in scientific notation is 3.9 x 10^-5
Answer:
<em> = n² + 4n ; n = 11 </em>
Step-by-step explanation:
= [2 + (n - 1)d]
~~~~~~~~~
= 5
d = 7 - 5 = 2
= [ 2(5) + 2(n - 1)] = ( 8 + 2n ) = 4n + n²
<em> = n² + 4n</em>
n² + 4n = 165
n² + 4n - 165 = 0
(n + 15)(n - 11) = 0 ( n ≥ 0 ) ⇒ <em>n = 11</em>