Answer:
Your answer is 2.4
Step-by-step explanation:
Answer:
12.686cm
Step-by-step explanation:
By using pythagoras, we can find CB.
We know that ![a^2+b^2=c^2](https://tex.z-dn.net/?f=a%5E2%2Bb%5E2%3Dc%5E2)
Therefore, ![12^2-6^2=CB^2](https://tex.z-dn.net/?f=12%5E2-6%5E2%3DCB%5E2)
(it has to be positive since it is distance)
now we look at triangle BCD and use SOH CAH TOA.
![Sin55=CB/CD\\Therefore, CD= 12.686](https://tex.z-dn.net/?f=Sin55%3DCB%2FCD%5C%5CTherefore%2C%20CD%3D%2012.686)
Answer:
11.108
Step-by-step explanation:
Answer:
5000 difference
Step-by-step explanation:
Answer: x=-2 and y=-2
Step-by-step-explaination:
To solve the system of equations you have to cancel out a variable. I chose to cancel out Y. First, the coefficients of y need to be the same in both equations. To do this multiply to the top equation by 2 so you get
2(2x) +2(y) = 2(-6)
4x + 2y = -12
Next, subtract the second equation from the first to cancel out the y’s
4x + 2y =-12
-(-8x + 2y = -12)
————————
12x = -24
Solve
X = -24/12
X=-2
Plug x into the original equation to find y
2(-2) + y = -6
-4 + y = -6
Y = -6 +4
Y=-2
You can substitute x and y into the original equations to double check