14) A plant that floats on the surface of rural bodies of water is known as duckweed.
The initial mass of a population of duckweed
is 500 kg. The mass of the population triples
every 45 hours and can be represented by
the function m(t) = 500 * 3*
345, where t is
time in hours.
=
Determine how many hours would pass
for the duckweed to grow to a mass
triple the original size.

5 + 8 +7 + 4 + 0 +1 = 25

step-by-step explanation:

1. a^4+8a^3+24a^2+32a+16

2.y^8+8y^7+28y^6+56y^5+70y^4+56y^3+28y^2+8y+1

3.x^6-3x^4y^2+3x^2y^4-y^6

look at the picture.

1.

ef : ab = 2 : 3

gf : cb = 2 : 3

gh : cd = 2 : 3

he : da = 2 : 3

2.

∠a ≅ ∠e

∠b ≅ ∠f

∠c ≅ ∠g

∠d ≅ ∠h

3.

use pythagorean theorem:

the length of the abcd trapezoid sides:

|ab| = 3 cm

|bc| = 10 cm

|cd| = 3(3) cm = 9 cm

|da| = 8 cm

the perimeter of abcd = 3 + 10 + 9 + 8 = 30 cm

the ratio of perimeters of the tarapezoids is equal 2 : 3.

substitute:

      cross multiply

      divide both sides by 3

answer is

b.

11

hope you get this one right.