Answer:
Permutation is used.
No. of arrangements = 1260
Step-by-step explanation:
Permutation is used for choosing & arrangement of 'r' out of 'n' objects, when sequence is important.
Total no. of alphabets in CORRECT = 7
C is repeated twice, R is repeated twice
So, Total No. of arrangements = <u>7 !</u>
(2!)(2!)
= 5040 / 4
= 1260
Answer:
all you have to do is graph them but put them in y=mx+b form first, the coordinates is the solution
Answer:
-15 is colder then -11
Step-by-step explanation:
Answer:
A = 21.65 cm squared
Step-by-step explanation:
The basic area formula for a triangle is
![A= \frac{1}{2}bh](https://tex.z-dn.net/?f=A%3D%20%5Cfrac%7B1%7D%7B2%7Dbh)
We have our base as 5, so we can find the height using right triangle trig. Side BC is opposite the given angle, which is the height, and we are given side CD as 5 which is the base. Using the tangent ratio to find side BC:
which simplifies to
5 tan(60) = x so
x = 8.66
Filling in for the area:
so
A = 21.65 cm squared