The answer to number 18 is Cassie
<u>Answer:</u>
x = 8
<u>Explanation:</u>
-x + 1 = -7 Subtract one from each side
-x = -8 Divide each side by -1 to get x by itself
x = 8
Step-by-step explanation:
the volume of :
cone = ⅓π.r².r= ⅓π.r³
cylinder = π.r²r= π.r³
Sphere = 4/3 π.r³
for r = 9 in =>
the volume of:
14. cone = ⅓.π.9³= ⅓π × 729 = 243π in³
15. cylinder = π.9³ = 729π in³
16. Sphere = 4/3 π.9³ = 972π in³
17. the volume ratio among cone, cylinder and Sphere is : ⅓ : 1 : 4/3 =
1 : 3 : 4
Modern currency i. e. Money is a medium of exchange used to exchange for services.
Any item that can be traded for another item was done in older days with the name of barter system.