Answer:
40% decrease
Step-by-step explanation:
2x^4
13b-10
5y+10
5a^3
2b^2+8a
Answer:
1) 378.1 in²
2) 8.4 m²
Step-by-step explanation:
Area of sector= 
1) Area of sector

2) Area of sector

Step-by-step explanation:
The solutions are the points of intersection of f(x) and g(x), which are x = 0 or x = 2.
Answer:
25:64
Step-by-step explanation:
surface : 4×pi×R^2
R1 = 5x
R2 =8x
4piR1^2 / 4piR2^2 = R1^2/R2^2 = 5x^2/8x^2 = 25x^2/64x^2 = 25/64