The answer is
X= -3/2 or x=1
Answer:
Part 1) 
Part 2) 
Part 3) 
Step-by-step explanation:
step 1
Find the measure of side c
Applying the law of cosines

we have

substitute





step 2
Find the measure of angle A
Applying the law of sines

substitute the given values

solve for sin(A)



step 3
Find the measure of angle B
we know that
The sum of the interior angles in any triangle must be equal to 180 degrees
so

substitute the given values



Answer:
x=(-60)
Step-by-step explanation:
x/2-12=(-42)
add 12 to -42
x/2=(-30)
divide -30 by 1/2
x=(-60)
Answer: 97 stickers
Step-by-step explanation:
Marie has 87 stickers in her collection.
Each week she collects 5 and gives away 3.
The total number of stickers she gains per week is therefore:
= 5 - 3
= 2 stickers per week
In 5 weeks therefore, she would have collected:
= 2 * 5
= 10 stickers
Add that to the original number:
= 87 + 10
= 97 stickers
Answer;
mean=5.2
median=6
Step-by-step explanation: