True
work: f(3)=2(3)-9
f(3)=6-9
f(3)=-3
Answer:
Motorized train for $9.99 = 5.99
Doll house for $12.99 = $7.79
Building blocks for $5.69 = $3.41
Step-by-step explanation:
Answer:
explain the difference between a postulate and a theorem:
A postulate is a statement that is to be assumed as true without proof. A theorem is a true statement that can be always proven.(put an example from the module. Idk the module ofc)
Idk the other thing
Step-by-step explanation:
Please mark brainliest :)
Answer:
27$
Step-by-step explanation:
Answer:
Step-by-step explanation:
First find factors of 81
3 81
3 27
3 9
3 3
1
81 = 3×3×3×3
81 = 3^4
Taking squareroot
∴ -√81 = -√3^4
= -3^2
= -9
