< BAC = 50
< BCA = 90
interior angles of a triangle add up to 180
so < ABC = 180 - (90 + 50) = 180 - 140 = 40
and < ABC = < CDE.......so < CDE = 40 <===
Answer:
1.four
2.c
Step-by-step explanation:
B and D are both rational.
A rational number is a number that can be represented as a ratio fo two integers.
-7/3 is rational because both -7 and 3 are integers. 2.777... equals 25/9. 25 and 9 are both rational numbers.
Answer:
-3 over 7 or -0.429
Step-by-step explanation:
