Angle j and angle m are base angles of an isosceles trapezoid jklm. if angle j=20x+9 and angle m =14x+15, find angle k

Angle K is 151°

Step-by-step explanation:

Given :

JKLM is an isosceles trapezoid,

In which base angles ( either top or bottom ) are,

∠J=20x+9 and  ∠M =14x+15,

In an isosceles triangle the angles on either side of the bases are the same measure,

⇒ 20x + 9 = 14x + 15

⇒ 20x - 14x = 15 - 9

⇒ 6x = 6

⇒ x = 1

Thus, the angles are,

⇒ ∠J = ∠M = 20 + 9 = 29°,

Let ∠K = ∠L = x,

By the property of quadrilateral,

∠J + ∠M + ∠K + ∠L = 360°

⇒ 29° + 29° + x + x = 360°

⇒ 58° + 2x = 360°

⇒ 2x = 302°

⇒ x = 151°

Hence, ∠K = 151°

a) what number, when added to negative four, is equal to negative five?

step-by-step explanation:

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.