Answer:
sin(65)=0.906307787
Step-by-step explanation:
C = 2πr Divide both sides by 2r
= π Switch the sides to make it easier to read
π = <span>
</span>
Answer:
the answer is C. Direct Control
Step-by-step explanation:
giving each student the same test is something being controlled directly by the scientist/reasearcher
can't be randomization as it is not random
can't be replication as nothing is being replicated/duplicated
So measure the pen in meters
Answer:
280 students
111 non students
Step-by-step explanation:
number of students (S)
number of non students (N)
S+N=391 S=391-N
4S+6N=1786
substitute S
4(391-N)+6N=1786
1564-4N+6N=1786
subtract 1564 from each side
2N=222
N=111
S=391-111=280
