Answer:
2.
30-7x4 = 2
3.
80
Step-by-step explanation:
2.
First, do 7x4, which equals 28. Then subtract that from 30, and you get 2.
3.
Do the parentheses first, 21-6=15. Then 15 divided by 0.2 = 75. 75+5=80.
Sorry I couldn't help on any of the other ones, I don't have much time.
90 different ways.
There are 10 ways to choose the first student that goes first, leaving 9 different ways a second student can be chosen. Using combinations, you multiply 10 by 9 to get a total of 90 different combinations, or ways students can be chosen to go first or second.
Answer:
338
Step-by-step explanation:
because it right and i said so
Answer:
30
Step-by-step explanation:
Answer:
angle formed by two chords in a circle
Step-by-step explanation: