You have 54 points, so far......
There's nothing to evaluate...you want to substitute "2" into a function....but there is no "x" to substitute into !!!
Note √a√b = √(a * b).......does that help???
Hey, man....you have more than doubled your points today !!!!......they'll add up quickly.....I've been here only since March !!!! (and not everyday)
See???...I told ya' !!!
It's a running gag, happy7....you will get a lot of 1 + 1 and 2 + 2 questions, too.....I usually ignore them.....
Let's see how happy7 got that answer....substituting 2 for x
4.8(2)+1.2(y)=2.4
9.6 + 1.2y = 2.4 subtract 9.6 from both sides
1.2y = - 7.2 divide by 1.2 on both sides
y = -6
18 - ln(3-x)=0 add ln(3-x) to both sides
18 = ln(3-x) exponentially, this says
e^18 = 3 -x add x to both sides and subtract e^18 from both sides
x = 3 - e^18 ≈ -65,659,966.137
Good job !!!!
Look at this one again, happy7......if I take 1/2 of something....what do I get???