What is the solution of the system of equations below?
y= -3x
x+y=4

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.

To prove that angle def = angle dgf by sas, what additional information is needed? def congruent to dgf dfe congruent to dfg de congruent to dg dg congruent to gf

Solve: 25 points find the fifth term of an increasing geometric progression if the first term is equal to 7−3 √5 and each term (starting with the second) is equal to the difference of the term following it and the term preceding it.