Answer:
x=11, y=13
Step-by-step explanation:
3x-2y=7
3x-2(x+2)=7 . - x + = - -2*+2=-4
3x-2x-4=7
1x-4=7
x=7+4
x=11
y=x+2
y=11+2
y=13
Answer:
x^2 ÷4
Step-by-step explanation:
f(x) = ( 4x) ^1/2
y = (4x)^1/2
x = y^2 ÷ 4
then, inverse fun. is x^2 ÷ 4
Answer:
-21=24
Step-by-step explanation:
Subtract 24 from 3
-21=8+2^2
Raise 4 to the power of 2
-21=8+16
Add 8 and 16
-21=24
Answer:
2x+2
Step-by-step explanation:
of symbols, representing a value, o relation. example 2+2=4
Answer:
No
Step-by-step explanation:
Step 1: Write equation
8u - 1 = 6u
Step 2: Solve for <em>u</em>
- Subtract 6u on both sides: 2u - 1 = 0
- Add 1 to both sides: 2u = 1
- Divide both sides by 2: u = 1/2
∴ u = -1/2 is NOT a solution.
