We know that
the law of cosines formulas established
c²=a²+b²-2*a*b*cos C-----> cos C=[a²+b²-c²]/[2*a*b]
a=11 m
b=12 m
c=16 m
so
cos C=[11²+12²-16²]/[2*11*12]---> cos C=0.0341
C=arc cos (0.0341)-------> C=88.05°
see the attached figure
the answer isthe angle is 88°
What is that called ( as in what type of math)
Answer:
The factored form of x²-400 is (x+20)(x-20).
Step-by-step explanation:
Given the expression

As the square of 20 is 400. Therefore, rewrite 400 as 20²
⇒ 

Thus, the expression becomes

Thus, the factored form of x²-400 is (x+20)(x-20).
It rotated 90 degrees to the right and transformed down and to the right
Answer:
It equals 60
Step-by-step explanation: