Answer:
y = 6.22
You can solve this in two ways.
1.) Use SOH CAH TOA:
I typically start off by labeling the sides of the triangle with H (hypotenuse), O (opposite), and A (adjacent). Because I need to figure out what y is when given an angle and 4, I will use CAH, or cosine.
2.) Use Law of Sines:
Solve for the last angle inside the triangle first.
Then use the angle you found (40°) in the equation.
Answer:
12
Step-by-step explanation:
8+w/4, when w=16
8+16/4
8+4=12
(h/g)(-4)
Plug and chug
Should come out to be -4.5
To find the values not in the domain, you must set each quantity in the denominator equal to zero and solve for x.
x+2=0 x+3=0
x≠-2 x≠-3
If x were either of these numbers, the denominator of the fraction would equal zero, which would give an undefined answer.
Let x = hours to meet
train one has a 2 hour head start or 210 km head start
210 + 105x = 135x
30x = 210
x = 7 hours to meet
Step-by-step explanation:
A straight line adds up to 180°
m+3m=180°
4m=180°
m=45°
3m=45°
angle CBD=3(45)
=135°
