X = to 2/3
6x = 3x+2
Subtract 3x in both sides
3x=2 divide 3 in both sides and you get
X = 2/3
N+2(2n-5)=20
Distribute
n+4n-10=20
Combine like terms
5n-10=20
Add 10 to both sides
5n=30
Divide both sides by 5
n=6
Final answer: 6
f(x) = sqrt [( x - 3) / (x - 5)]
well x cannot be 5 because that would make x - 5 = 0.
Also the fraction x - 3 / x - 5 cannot be negative because theres no real square root of a negative.
So x must be <= 3 or > 5
In interval notation the domain is ( -∞,3] or (5 , ∞)
You are going to treat this as a triangle so one side is 13 units long and the other is 22. And using the pythagorean theorem a²+b²=c².
13²+22²=c²
169+484=c²
653=c²
√653=√c²
25.55386...=c
Or, rounded to the nearest hundredth, 25.55
1. C.
The rule of powers is that when a parenthesis is raised to a power, you multiply the two numbers. Since it is being raised to the second power, it needs to have a 10 in the parenthesis. That would make 20.
2. B
Firstly 10^2 = 100, so we know that the number must be 10. That leaves us with just A and B. Then we know the same thing from the previous equation, that they need to be multiplied together.
