A population of fruit flies contains four phenotypes AB, Ab, aB, ab characterised by wing shape (A or a) and eye colour (B or b) which occur in the ratio 9 : 3 : 3 : 1. If two members of the population are selected at
random, what is the probability that they will have the same wing shape
(i) given that that they have the same eye colour and (ii) given that they
have different eyes colours? Are the two characteristics, wing shape and
eye colour, independently assorted?

what level of math? also i don't need to be paid if i can you.

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

: )

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b

answer: it is a.,b.,d.

step-by-step explanation: