Triangle K L J. Side K L is 23.1 feet, J L is 20.1 feet, J K is 16.8 feet. Angle K is 58 degrees, L is 45 degrees, J is 77 degrees. Triangle E F G. Side E F is 6.7 feet, F G is 5.6 feet, G E is blank. Angle E is 45 degrees, F is 77 degrees, G is 58 degrees. Given these similar triangles, what is the common ratio of triangle LJK to triangle EFG?
1.5
2
3
4

the answer is 3
"C"

What is the chemical formula of the following compound

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

If a sample of radioactive isotopes takes 600 minutes to decay from 400 grams to 50 grams, what is the half-life of the isotope?