Answer:
The square root of a negative number is not a real number
=
−
9
8
8
Step-by-step explanation:
An observation study is where nothing changes and you record what is seen. An experimental study you have a control group and a testable group.
The answer would be: .C. The groups in an experiment are chosen at random, but not in an observational study.
pumped up kicks
Step-by-step explanation:
pumped up kicks
Answer:
42, 138, and 138 degrees DON'T FORGET THE DEGREES SIGNS!!!!!
Step-by-step explanation:
Using vertical angles theorem, we can get another 42, 180-42, and 180-42.
So we have 42, 138, and 138
Do 2.63 x 3 to check ur answer