Answer:
Step-by-step explanation:
y = -3x² + 24x - 50
factor out leading coefficient
y = -3(x² - 8x) - 50
complete the square
coefficient of the x term: -8
divide it in half: -4
square it: (-4)² = 4²
use 4² to complete the square and keep the equation balanced:
y = -3(x² - 8x + 4²) + 3(4²) - 50
y = -3(x-4)² - 2
Answer:
x=7
Step-by-step explanation:
Answer:
the total surface of the box is 486 cm 2
.......
365........................
Answer: 1194677035.714285
Step-by-step explanation:
= {(82902 * 6930)+(93945*82902)} / 7
= (574510860 + 7788228390) / 7
= 8362739250 / 7
= 1194677035.714285
