A rare genetic condition called Retinitis pigmentosa (RP) results in individuals losing their night vision (the ability to see clearly in low light situations) and peripheral
vision. As the condition worsens with age, so do the symptoms, resulting in many
individulas with RP being legally blind by the age of 40.
The receptors affected in individulas with RP are
O mechanoreceptors
chemoreceptors
O photoreceptors
thermoreceptors

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

a. is correct

answer: -1

step-by-step explanation: