Answer:

Step-by-step explanation:
Hope this work helps
Answer:
Do you still need help??
Step-by-step explanation:
The problem can be solved step by step, if we know certain basic rules of summation. Following rules assume summation limits are identical.




Armed with the above rules, we can split up the summation into simple terms:





=> (a)
f(x)=28n-n^2=> f'(x)=28-2n
=> at f'(x)=0 => x=14
Since f''(x)=-2 <0 therefore f(14) is a maximum
(b)
f(x) is a maximum when n=14
(c)
the maximum value of f(x) is f(14)=196
Answer:
y + 1 = 7(x + 2)
General Formulas and Concepts:
<u>Algebra I</u>
Point-Slope Form: y - y₁ = m(x - x₁)
- x₁ - x coordinate
- y₁ - y coordinate
- m - slope
Step-by-step explanation:
<u>Step 1: Define</u>
Slope <em>m</em> = 7
Point (-2, -1)
<u>Step 2: Write Equation</u>
<em>Substitute in variables into general form.</em>
y + 1 = 7(x + 2)
Answer:
2,2
Step-by-step explanation:
f(x)=(x-2)^2+2
=2,2