Answer:
261.7
Step-by-step explanation:
Your formula should say V = 4/3 pi * r^ CUBED not squared
Volume = (4/3) * 3.14 * 2^3
Volume = (4/3) * 3.14 * 8
Volume = 39.433333333333
Volume = 39.43
Answer:
x=-2 x=-1
Step-by-step explanation:
f(x)=x² +3x+2
Set the function equal to zero
0=x² +3x+2
Factor
What 2 numbers multiply to 2 and add to 3
2*1 = 2
2+1 = 3
0 = ( x+2) (x+1)
Using the zero product property
x+2 =0 x+1 =0
x=-2 x=-1
20,40,60,80,100,120,140,160,180,200,220,240...
She could use the following methods:
8 dimes
16 nickles
2 quarter and 3 dimes
2 quarters and 6 nickles
so, 4 combos