Answer:
7392
Step-by-step explanation:
just divide 5544÷.75 on a calculator however you want to do it than you will get 7392
Answer:
66
Step-by-step explanation:
If there are <em>n</em> students, then the number of pairs is
.
With 12 students,
pairs can be formed.
The reason the formula works is this: Each of the 12 students can be paired with 11 other students (no student is paired with him/her self). But counting 12 x 11 = 132 counts each pair <u>twice</u>. Example: student A can be paired with student B,..., student B can be paired with student A. The pair was counted two times.
See the attached image that shows pairings of 5 students. There are
5(5 - 1)/2 = 5(4)/2 = 10 pairs.
First try it out yourself then compare answers. Remember, all squares have the same length per each side.
a) 3025
b) 25300
The law of cosines :
A^2 = B^2 + C^2 - 2BC cos A
2^2 = 3^2 + 4^2 - 2 . 3. 4 cos theta
= 21
hope this helps
Answer:
5 to 18 ; 1 to 225
Step-by-step explanation:
BEACAUSE IT WAS FROM USA TEST PREP AND GOT IT RIGHT