Answer:
About 200% force
Step-by-step explanation:
Answer:
one is 49/60
Step-by-step explanation:
Answer:
The combined average is 94%
Step-by-step explanation:
for first period, number of students =40
average =96%
for second period, no of students =20
average =90%
but
let
=sum of students for the first period
=sum of students for the second period
for first period;


for second period,


therefore the combined average = 
that is

so combined average is 94%
Wheres the table?? You said “the table below” and what are you asking for? I can always answer in the comments section
the value of cos 15 is √3+1/2√2
explanation
cos (45-30)
=cos45*cos30+sin45*sin30
=1/√2 * √3/2 + 1/√2 * 1/2
=√6/4 + √2/4
=√6 + √2/4
=√3+1/2√2