The answer is the number 2
Answer:
(2x - 7)³ ≠ (2x)³- 7³
Step-by-step explanation:
(2x - 7)³= (2x)³- 7³
Use pascal's triangle to expand left side. Simplify all else.
(2x)³ + 3(2x)²(-7)¹ + 3(2x)¹(-7)² + (-7)³ = 8x³- 343
8x³ + 3(4x²)(-7) + 3(2x)(49) + (-7)³ = 8x³- 343
8x³ - 84x² + 294x - 343 = 8x³- 343
LS ≠ RS
Answer: C.
Step-by-step explanation:
If the figure gets rotated 270ᴼ, then all of the transformed sides are perpendicular to the sides of the original figure.
The slope of DE is 2/4 (2 units up, 4 units over) or 1/2. If D’E’ is perpendicular to DE, then the slopes have negative reciprocals.
DE’s slope: 1/2
D’E’ slope: -2/1 or -2 (down 2, over 1)
936 divided by 9.75=96
hope this helped:)
