Math Quiz~ 1). what is the sum of 2,5 + 1,6 ?...

2). what is the sum of 1,2 × 1,8 ?...

3). what is the sum of 1,8 × 2,4 ?...

Have a great time doing it!​

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

A. plot the data for the functions f(x) and g(x) on a grid and connect the points. x -2 -1 0 1 2 f(x) 1/9 1/3 1 3 9 x -2 -1 0 1 2 g(x) -4 -2 0 2 4 b. which function could be described as exponential and which as linear? explain. c. if the functions continue with the same pattern, will the function values ever be equal? if so, give estimates for the value of x that will make the function values equals. if not, explain why the function values will never be equal.

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great