Answer:
x = -7 and x = 3
Step-by-step explanation:
x² + 4x - 21 = 0 factors as follows: (x + 7)(x - 3) = 0.
Then x = -7 and x = 3.
Step-by-step explanation:
1/4 of the book = 66 pages
1/2 of the book = 132 pages
3/4 of the book = 132 + 66 = 198 pages
Vsphere=(4/3)pir^3
r=20
Vsphere=(4/3)pi20^3
Vsphere=(4/3)pi8000
Vsphere=32000/3pi
vphere=10666.666666666pi
apxos
33520.32163829 in^3
round if neccecary
