The difference between the solutions of the equation 5x2−x−k=0 is 1.8. find the solutions.

x = 1; x = -0.8

Step-by-step explanation:

Here is a simpler approach if needed for future students:

5x^2-x-k = 0,

System of Equations: x1 - x2 = 1.8 & x1 + x2 = 1/5 = 0.2 (if x1 and x2 are roots)

Now let's add the two:

x1 - x2 = 1.8

+ x1 + x2 = 0.2

2x1 = 2,

x1 = 2/2 = 1

- x2 = 1.8 - 1 = 0.8 => x2 = -0.8

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.

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°