Answer:
Step-by-step explanation:
1) Angle 1 and angle 2 are complementary angles. If angle 1 measures (3x + 2), what is the measure of angle 2? 3x+2 + y = 90
2) Angle A and angle b are supplementary angles. Angle A measures (2m – 10) degrees and angle b measures (m + 25) degrees. Find the measure of angle A and angle b.
3) Three angles are supplementary angles. If one angle measures 25 degrees, the second angle measures m + 15. The third angle measures 2m degrees. What is the value of m?
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:
√200
Step-by-step explanation:
An irrational number is a number that can not be represented as a fraction
√81 = 9 = 9/1
√-16 = 4i
√-64 = 8i
√200 = ~14.14213
Answer:
lisa has been dancing for 9 yrs
Step-by-step explanation:
6+3=9
and ive been dancing for longer than both of them lol hope this helped :)
Answer:
its 38
Step-by-step explanation:
use a calculator like i did :)
