Answer:66
Step-by-step explanation:if its negative you subtract all of the 54 then add -12 to tha
Answer: 2,3,8
Step-by-step explanation:
if,
x+y+z=13
2x+5y+6z=67
5x-y=7
Solve [x+y+z=13 2x+5y+6z=67] to find: -3x+z=2 and keep
|
x+y+z=13
5x-y=7
6x+z=20 and -3x+z=2
z=8
x=2
y=3
x = 73.21
Step-by-step explanation:
Consider triangle ABC. Since angle A is 45° and side BC is 100, then side AB is also 100.
Now consider triangle ABD. With angle A equal to 60°, we can use the definition of tangent to find the value of x:
tan 60 = BD/AB
sqrt(3) = (x + 100)/100
or
x + 100 = 100sqrt(3)
x = 100[sqrt(3) - 1]
= 73.21
