Answer: score if the sixth pupil is 90
Step-by-step explanation:
Mean mark-75.5
6pupil
83+73+71+67+69+x= 75.5
363+x=75.5×6
×=453-363
×=90
Answer:
X = 30
20^2 + 23^2 = x^2
400 + 529 = x^2
929 = x^2
√929 = √x^2
X = √929
X = 30.48
Sum- 13 - 5 i
69;) yes yes yes yes
