Here you go: the answers
7. C
8. A
Answer:
Step-by-step explanation:answer is $6 per candy bar/ c=6
Lets write this out:-
z² + z + 4z³ + 4z²
z² will become 1z² because when ever there is a varaible, and before it there is NO coefficient the coefficient automatically becomes 1. Same is with z. z will be come 1z.
Lets write it out again:-
1z² + 1z + 4z³ + 4z²
Combine like terms:-
1z² + 1z + 4z³ + 4z²
(1 + 4)z² = 5z²
1z + 5z² + 4z³
So, when combining like terms in z² + z + 4z³ + 4z² the answer is
1z + 5z² + 4z³.
Hope I helped ya!! xD
Answer:
<h2>R=1.0 cm</h2>
Step-by-step explanation:
V=m/d
V=8.4g/(2g/cm³)=4.2cm³
V=4 π R³/3 ; π≅3.14
R³ =3V/(4 π)=3*4.2cm³/(4*3.14)=12.6cm³/12.56 ≅ 1.0 cm³
=>R=∛(1.0 cm³) =1.0 cm