WILL GIVE BRAINILY Exit Card - Adding Integers Find the answer for each expression by showing how you use the Rules of Adding Integers.
1) 8 + (-4) 5) 16 + 9
2) (-4) + (-11) 6) (-7) + (-21)
3) (-13) + 18 7) (-14) + 6
4) 21 + (-20) 8) (-7) + 15 + (-6)

a) -303

b) 437

c) -1771

d) 1150

Step-by-step explanation:

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

dunno

step-by-step explanation: