Given the function f(x)=3√x-2; what restriction is there on the value uner the square root symbol? in other words what can't you do with a square root expression?

x must be greater than or equals to 2

Step-by-step explanation:

Here we follow the rule , which says that , the term inside the square root must not be less than 0. It is because, square of any real number whether positive or negative always results in a positive real number. Hence , there can not be negative real number whose sqaure root exists.

Hence

In order to function to be defined ,

x-2>=0

Adding 2 on both sides we get

x>=2

Hence this is our condition.

(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

now, put y=a(n) and x=n,

hence, option d is correct.

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.