Answer:
C
Step-by-step explanation:
49x² + 28xy + 4y² ← is a perfect square of the form
(ax + by)² = a²x² + 2abxy + b²y²
49 = 7² ⇒ a = 7 and 4 = 2² ⇒ b = 2
2ab = 2 × 7 × 2 = 28
Hence
49x² + 28xy + 4y² = (7x + 2y)²
with factor 7x + 2y ⇒ C
You can’t factor 31 since it’s a prime number luv
Answer:
Option D
Step-by-step explanation:
4x + 11 < - 21
4x < - 21 - 11
4x < - 32
x < - 32 / 4
x < - 8
Answer: $550
Step-by-step explanation:
How much is the profit for 1 burrito?: $8 - ($1.50+$1) = $5.5
So, profit for 100 burritos is $5.5 x 100 = $550.
Hope this helps.
Answer:120 square cm
Step-by-step explanation:
40 x 3
