What is the value of X
A 21
B 41
C 20
D 22
1 answer:
Answer:
22
Step-by-step explanation:
Let the bottom be y for the small triangle
So the total length of the bottom is 2y
We can use ratios to solve
x-1 1y
----- = --------
42 2y
Canceling the y's
x-1 1
----- = --------
42 2
Using cross products
2(x-1) = 42
Divide by 2
x-1 = 21
Add 1 to each side
x-1+1=21+1
x = 22
You might be interested in
Answer:
line two is probably he line of best fit.
This answer is quadrant 3 because if you do the math then you end up in quadrant 3
Do you have to use substitution?
It would be 3 beacuse w=3
Answer:
Step-by-step explanation:
![\dfrac 12 \left[\sin(a+b)+\sin(a-b) \right]\\\\\\=\dfrac 12\left[ 2 \sin a \cos b\right]\\\\\\=\sin a \cos b](https://tex.z-dn.net/?f=%5Cdfrac%2012%20%5Cleft%5B%5Csin%28a%2Bb%29%2B%5Csin%28a-b%29%20%5Cright%5D%5C%5C%5C%5C%5C%5C%3D%5Cdfrac%2012%5Cleft%5B%202%20%5Csin%20a%20%5Ccos%20b%5Cright%5D%5C%5C%5C%5C%5C%5C%3D%5Csin%20a%20%5Ccos%20b)
