1. One value of x for f(x)=-4 would be 0.
2. Should be 3.5 and -3.5 but I'm not sure
Lets solve your equation step by step:
(x+18)^1/2+2=x
step 1:Add -2 to both sides:
(x+18)^1/2+2-2=x+-2
(x+18^)1/2=x-2
step 2:solve exponent
(x+18)^1/2=x-2
((x+18)^1/2)^2=(x-2)^2
x+18=x^2-4x+4
x+18-(x^2-4x+4)=x^2-4x+4-(x^2-4x+4) (subtract x^2-4x+4 from both sides)
-x^2+5x+14=0
(-x-2)(x-7)=0(factor left side of equation)
-x-2=0 or x-7=0 (set factors equal to zero)
x=-2 or x=7
check answers:(plug them in to make sure they work )
x=-2(doesn't work in original equation)
x=7(works in original equation)
Answer: 6 vegetable topping choices.
Step-by-step explanation:
If we have two toppings out of X, the number of possible combinations is:

and we want that c ≥ 15
We can do it by brute force:
Let's select x = 5 for example:

So with 5 vegetable toppings we have not enough, let's see with 6.

So with 6 options we have exactly 15 different combinations, the correct answer is 6.
Answer:
(0,1) point C
Step-by-step explanation:
the line segment PQ is divided into 5 parts ( 3parts +2 parts)
Is very important that you keep the direction correct from P to Q
The point C divides the PQ into 3:2 ratio
Answer:
Part 1) The diameter is 
Part 2) The circumference is 
Step-by-step explanation:
step 1
Find the diameter
we know that
The diameter is two times the radius

we have

substitute

step 2
Find the circumference
The circumference is equal to

we have

substitute
