As the question say this problem is a practice of the law of cosines!
The law of cosine: c^2=a^2+b^2-2ab*cos*c for any side a, b and c
The law can also be written as c=sqrt(a^2+b^2-2abcosc)
Now use this formula!(note cos 100 degrees is about 0.8623)
c=sqrt(15^2+16^2-2*15*16*cos100)
solving this we can MN is about 23.75
Round this to the nearest tenths now!
We get 23.8!
Thus the answer is D
Answer:
i THINK its 18.75% per year
Step-by-step explanation:
r = (1/8)((3,000/1200) - 1 ) = 0.1875
r = 0.1875 * 100 = 18.75
(dont take my word tho, u should double check yourself)
4.)
A.)
P = 140
i = 0.05
B.)
140(1.05)^t
C.)
0 = 140
10 = 228.05
5.)
A.) The y-intercept is how much the cell phone cost to purchase.
B.) V means value, t meaning years was replaced by 4, and 31.25 is how much it's worth at that time.
C.) The graph is decreasing, and the value goes down with time.
Answer: This confusing notation means x= -10 and is passed as variable to function on desmos com website you can graph multiple inputs to a function like g(x,y)=x^2+y^2-64
Answer 51
Step-by-step explanation:
-1 * -10 =10
10+41=51
