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 are the choices, or do you have to give the answer?
Answer:
30 minutes for 20 salads
Step-by-step explanation:
If it takes Kristin 18 min to make 12 salads it will look like this.
18 to 12
and we need to kno how many min it will take if she makes 20 salads
x to 20
-----------
18/12=1.5min for one salad.
1.5 times 20 will give you your answer.
30 minutes.
YAY!!!
Answer:
-6
Step-by-step explanation:
16x-21x-16=21x-21x+14
Than -5x-16+16=14+16
-5x/5=30/5
=-6