8-(r+9)-7 = 9
First, distribute the (-) sign! ^^
8-r-9-7=9
Calculate the numbers! ^^
-8-r = 9
Isolate the variable (r)! ^^
-r = 9+8
Solve! ^^
-r = 17
Move the sign! ^^
r = -17
^ this is your answer :)
Answer:
Step-by-step explanation:
Let's find the discriminant
It is a positive number, therefore there are 2 solutions
Answer:
4
Step-by-step explanation:
11 - 7 = 4
Answer: 19.2inches³
Step-by-step explanation:
The volume of a cone is calculated as:
= 1/3πr²h
where,
π = 3.14
r = radius = diameter/2 = 3.5/2 = 1.75
h = height = 6
Volume = 1/3πr²h
= 1/3 × 3.14 × 1.75² × 6
= 19.2325
= 19.2inches³
Therefore, the volume of the cone-shaped sandwich is 19.2inches³.