hope this is ans . Brother
Answer:
explanations: we multiply with a rational surd
(x-9)*√(x+9)/(√(x-9)*√(x+9)
=(x-9)√(x+9)/
B.( x-9)/√x+3 =( x-9)*(√x-3)/(√x+3)*(√x-3)
= (x-9)*(√x-3)/x-9
=√x-3
Answer:
2.The set of all values for output of a function. 4.The values for the dependent variable. And 6.The set of all y values.
Step-by-step explanation:
Domain is the input of the function and is also the independent variable, as for the range is the output and dependent variable. Given a function f , the set x values (inputs) is the domain of f , and the set y values ( outputs ) is the range of f . The domain of a function f is all of the values for which the function is defined. For instance, 1x is not defined when x=0 . Also, √x is not defined when x is negative.
(I’m also just learning this so I apologize if I am incorrect. I try my best.)
To find the hypotenuse of a right triangle, use the formula for the pythagorean theorem. This is a^2+b^2=c^2, with the two side lengths as a and b and the hypotenuse being c. So, 28^2+21^2=1225
1225 is your hypotenuse length!
Please make me brainliest <3
