Answer:
1.48 m
Step-by-step explanation:
mean height of 14 boys is 1.56 m, so their total height is 14 * 1.56 = 21.84 m
mean height of 32 students is 1.515 m, so their total height is 48.48
48.48 - 21.84 = 26.64 (total height of the girls)
mean height of the girls is 26.64/18 = 1.48 m
Answer:
The first one
Step-by-step explanation:
.1 repeating is 1/9, so either write it as 12 1/9, or 109/9
True, because perpendicular means crossing at a 90° angle
The first one it just makes sense.