Answer:
√308 or 17.5
Step-by-step explanation:
c^2=a^2+b^2
c^2-a^2=b^2
Substitute
18^2-4^2=b^2
324-16=b^2
b^2=308
b=√308 or b=17.5
B 2,_2 is the answer that i get
Answer: -70
Step-by-step explanation:
1. You subtract 5-7 because of PEMDAS and you get -2
2. multiply 5x7=35
3. Multiply 35x-2=-70
Parentheses/brackets
Exponents
Multiplication
Division
Addition
Subtraction
The x-intercepts are 
The y-intercepts are 
Explanation:
The relation is 
To find the x-intercept, let us substitute
in the equation
, we get,

Thus, the x-intercepts are 
To find the y-intercept, let us substitute
in the equation
, we get,

let us switch sides and solving, we get,

Taking square root,
and 
Thus, the y-intercepts are 