Answer:
they are 2
Step-by-step explanation:
each coind has a 1/2 probability of landing on heads
3 coins would be 1/2 x 1/2 x 1/2 = 1/8 probability
Answer:
BF = 30
Step-by-step explanation:
Since B and F are midpoints then BF is parallel to CE and half it's size
BF = 0.5 × CE = 0.5 × 60 = 30
Answer: 1 is not a perfect square. 3 is the only prime number one less than a square.
Answer:
B) -19
Step-by-step explanation:
-7 + 2x = -45
+7 +7
2x = -38
/2 /2
x = -19
