<h3>Answer:</h3>
<u>Volume of hemisphere = 2/3πr³</u>
- 2/3 × 3.14 × 3.1³
- 187.08/3
- 62.36 or 62.4 rounded.
Answer:
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Step-by-step explanation:
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Answer:
(-1,-5)
Step-by-step explanation:
So we have the system:
y=3x-2
x-y=4.
We are asked to use substitution. Luckily, it is already setup for this because one of the equations has one of the variables solved for, namely the y=3x-2 equation. We are going to insert y=3x-2 into x-y=4 and solve for x.
x-y=4 (with y=(3x-2) ):
x-(3x-2)=4
Distribute:
x-3x+2=4
Combine like terms:
-2x+2=4
Subtract 2 on both sides:
-2x =2
Divide both sides by -2:
x =-1
Now if y=3x-2 and x=-1, then y=3(-1)-2=-3-2=-5.
So the solution is (-1,-5).
Answer:
8
Step-by-step explanation:
4 x 4 = 16 / 2 = 8 since it is half the 4 by 4
Answer:
-43
Step-by-step explanation:
=(-3(-4^2))+5
-3(16)+5
-43
