Answer:
(a)
Step-by-step explanation:
Note the expansion of (x - 5y)² is
(x - 5y)² = x² - 10xy + 25y² , that is
(x - 5y)² = x² + 25y² - 10xy ← substitute given values
(- 16)² = 416 - 10xy
256 = 416 - 10xy ( subtract 416 from both sides )
- 160 = - 10xy ( divide both sides by - 10 )
xy = 16 → (a)
F(x) = 4x
so f(-2) = 4*-2 = -8
and
g((f(-2)) = g(-8) = -16-1 = -17
Its A
Answer:
Company A
Step-by-step explanation:
A) 15 + 50 = 65
B) 95 + 12 = 107
------------------------------------------------------------------
Answer:
Step-by-step explanation:
15/45 * 100
=33.33%
Answer: 24 plants
Step-by-step explanation:
1000 is not a perfect square.
31^2 < 1000 < 32^2
Required no. of trees = 32^2 − 1000
= 1024 − 1000
= 24
