Answer:
7/40
Step-by-step explanation:
There are 3 girls+9 boys = 12 students in the 7th grade
P (girl in 7th grade) = girls/ total
= 3/12 = 1/4
There are 7 girls+3 boys = 10 students in the 8th grade
P (girl in 8th grade) = girls/ total
= 7/10
P(7th grade girl, 8th grade girl) = 1/4 * 7/10 = 7/40
The entry in row 1, column 1 of 
is
(i.e. the dot product of row 1 of 
and column 1 of 
)
The entry in row 1, column 2 of is
The second option is the correct answer.
An arithmetic sequence is a pattern of numbers that increase or decrease at a constant amount.
Answer:
32
Explanation:
Since you're looking for the 4th term in the sequence, go ahead and replace the <em>n</em> with 4:
which is equal to
which is
and that is 32
Answer:
C
Step-by-step explanation:
I hope this helps. Sorry if i'm wrong.
