Answer:
D) 4 E) 15 F) 30 G) 30 H) 70
Step-by-step explanation:
D) the square root of 4 is 2. We do 2 x 2 = 4.
E) the square root of 9 is 3. We do 3 x 5 = 15.
F) the square root of 25 is 5. We do 5 x 6 = 30.
G) the square root of 36 is 6. We do 6 x 5 = 30.
H) the square root of 100 is 10. We do 10 x 7 = 70.
I hope this helped and please mark me as brainliest!
Answer:
f(x) = x² - 9x + 18
General Formulas and Concepts:
<u>Algebra I</u>
- Standard Form: ax² + bx + c = 0
- Binomial Roots: (x + a)(x + b)(x + c)(x + ...)
- Expanding by FOIL-ing (First, Outside, Inside, Last)
Step-by-step explanation:
<u>Step 1: Define</u>
Zeros/Roots x = 3, 6
<u>Step 2: Find Function</u>
- Rewrite Binomial Roots: f(x) = (x - 3)(x - 6)
- Expand by FOIL-ing: f(x) = x² - 6x - 3x + 18
- Combine like terms (x): f(x) = x² - 9x + 18
Answer:
f^-1(x) = 4x-3
Step-by-step explanation:
f(x) = (x+3)/4
y = (x+3)/4
Exchange x and y
x = (y+3)/4
Solve for y
4x = y+3
Subtract 3
4x-3 = y
The inverse
f^-1(x) = 4x-3
Domain is the sex of x values that are feasible. this is all of the positive integer values + 0, in case you only consider that can produce whole units.
range is the set of possible results for c(x), possible costs.
you can derive this from the fact that c(x) is a parabole and you can draw it, for which you can find the vertex of the parabola, the roots, the y intercept, the shape. also limit the costs to be positive.
you can substitute some values for x to help you, for example.
x y
0 200
1 200 - 7 + 0.345 = 193.345
2 200 - 14 + .345(4) = 187.38
3 200 - 21 + .345(9) = 182.105
the function does not have real roots, then the costs never decrease to 0.
the function starts at c(x) = 200, decreases until the vertex, (x = 10, c = 164.5) and starts to increase
then the range goes to 164.5 to infinity, limited to the solution for x = positive integers.