Answer:
B
Step-by-step explanation:
Just do the reverse of what they did and you will always make it back to where you started. It's like someone saying, "take 2 steps forward then turn around.." how do you get back? You turn <em>back</em> around and take 2 steps <em>backward.</em>
<em />
Hope this helped! :D
If this is a 100-gon, then not only does it have 100 sides, it also has 100 central angles. Each one measures 360/100 = 3.6. This is the vertex angle for each of those 100 triangles. 180 - 3.6 = 176.4, which has to be split equally between the 2 base angles. This puts each of those at 88.2. If you are looking for the exterior angle to each of those, it's the supplement of them. 180-88.2 = 91.8
Answer:
about 8.2 cm
Step-by-step explanation:
The key is to realize that the volume never changes.
The formula for the volume of a sphere is (4/3)*pi*radius^3
22/7 is being substituted in place of pi in this problem
The volume of one of the small spheres is
(4/3)*(22/7)*2^3 is about 33.524 cm^3
64 of those spheres would have a volume of 33.524*64, or about 2145 cm^3
Now, the problem is to find a sphere with a volume of 2145 cm^3
Volume = (4/3)*(22/7)*radius^3
plug in and solve
2145 = 4.1905*r^3
r^3=511.87
r is about equal to 8.2 centimeters
Hello!
Since y has to be less than -1 to make it false y has to be greater than -1
The answer 2 or just any number that is greater than -1
Hope this helps!
I wrote the steps down, hopefully you understand them and the answer is on the lower right corner.
