Answer:
The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola. For a quadratic function in standard form, y=ax2+bx+c , the axis of symmetry is a vertical line x=−b2a .
Step-by-step explanation:
So, here in part a), we are given n terms (no specific no. of terms given), so no. of terms = n , also, the common difference is defined as the difference between the next term to a specific term and the term, i.e , where d is the common difference, so here d = 49 - 45 = 4
Also, here the last term is 49 let say it the nth term, as no number of terms are given, so using the Arithmetic Progression formula, we can write as ;
Now, as we assumed there are n terms, so using the sum formula, we can have ;
Now, for part b) we are given a geometric progression with first term = a = 1, common ratio = r = (3/1) = 3, and no. of terms = n = 6, so now putting all values in the sum formula we will have;
The slope is 3/1
hope this helps
Answer:
7/-13 + 4/-13 = -7/13 - 4/13 = - 11/13
Answer: ig the equations would be 1.5x+1y>25 and 35x+35y>1000 (the < symbols also have _ at the bottom, i couldn’t figure out how to include it)
Step-by-step explanation: this is middle school, not high school