Answer:
The answer is b) 2(2x-4) and c)
Step-by-step explanation:
Okay lets try a) 2(2x-6)
2 x 2x - 2 x 6= 4x-12
b) 2(2x-4)
2 x 2x - 2 x 4=4x-8
c) : x-8+3x
x+3x-8=4x-8
I'm guessing 32.5 is the percentage.
32.5/100 = x/12.48
Cross-multiply:
100x = 405.6
Divide both sides by 100 to leave x alone.
x = 4.056
256.3354 maby sorry if it’s not
Answer:
- 3
Step-by-step explanation:
Assuming f(x) = x² - 8x - 12
To evaluate f(- 1) substitute x = - 1 into f(x)
f(- 1) = (- 1)² - 8(- 1) - 12 = 1 + 8 - 12 = 9 - 12 = - 3
