Can someone explain how you find the value of x for this?

let's notice those tickmarks, meaning those sides are equal, meaning the line inside the triangle is really the midsegment of the triangle, that cuts both sides in equal sides, and it has a parallel side of 16.

Check the picture below.

plants store their excess carbohydrate in the form of starch so that it could be used as energy source later on. the excess carbohydrate is converted into starch in the plastid i.e. chloroplast & this process occurs in the presence of sunlight. it is an insoluble polymer of glucose which gets stored in cell organelles named as amyloplasts. in some plants, starch is also stored in roots and embryos.

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify