12.56. The formula for the area of a circle( radius squared time pie) No, when u double the radius the area quadruples because your squaring the radius.
Answer:
15
Step-by-step explanation:
3/5 = 9
1/5 = 3
2/5 = 6
B. a parallelogram with four congruent sides
Pythagorean Theorem: a^2 + b^2 = c^2
-A and B are legs of the triangle
-C is the hypotenuse
#1.
6^2 + 8^2 = c^2
36 + 64 = c^2
100 = c^2
c = 10
#2.
5^2 + 12^2 = c^2
25 + 144 = c^2
169 = c^2
c = 13
#4.
10^2 + 4^2 = c^2
100 + 16 = c^2
116 = c^2
c = ![4\sqrt{29}](https://tex.z-dn.net/?f=4%5Csqrt%7B29%7D)
#5.
15^2 + 9^2 = c^2
225 + 81 = c^2
306 = c^2
c = ![3\sqrt{34}](https://tex.z-dn.net/?f=3%5Csqrt%7B34%7D)
#6.
120^2 + b^2 = 150^2
14400 + b^2 = 22500
b^2 = 8100
b = 90
#7.
144^2 + b^2 = 194^2
20736 + b^2 = 37636
b^2 = 16900
b = 130
Hope this helps!! :)
Answer:
![n=3](https://tex.z-dn.net/?f=n%3D3)
Step-by-step explanation:
Note that
.
Aha! We see a path to the solution!
We now know that our equation is actually
.
We can divide both sides by
to get
.
By inspection or taking the logarithm base 2 of both sides, we see that
.
So, the answer is
and we're done!