28 / # sides = 3.5 cm
28 / 3.5 = # sides
# sides = 8
It is an octagon.
Answer:
12.6
Step-by-step explanation:
The equation for a circle's area is 
.
We can use this equation to end up with A=(3.14)4
And 3.14 times 4 is 12.56.
Then we have to round to the nearest tenth.
Therefore your answer is 12.6
Hope this helped! :)
Answer:
-10
Step-by-step explanation:
(-6)+(-4)
Answer:
Step-by-step explanation:
hello :
g√ 108 =√ 3/g means : g² = √ 3/√ 108
g² = √(3/108)
g² = √(1/36)
g² = √(1/6)²
g² = 1/6
g = 1/√6 or g = - 1/√6
Value of x=-225
Value of y=71.33
Explanation
:
2x/3-2x/5=-60 (1)
0.2x+0.9y=19.2 (2)
(2x*5-2x*3)/(3*5)=-60
(10x-6x)/15=-60
4x/15=-60
4x=15*-60
4x=-900
x=-900/4=-225
consider (2)
0.2x+0.9y=19.2
substitute the value of x in (2)
0.2*-225+0.9y=19.2
0.9y=19.2+45=64.2
y=(64.2)/(0.9)=71.33
