The answer is 75 degrees. These are supplementary angles so
180-105 = 75
Answer:
X=13.5
Step-by-step explanation:
Y=2 so
2x-3*2^2=15
2x-12=15
2x=27
X=13.5
Answer:
24
Step-by-step explanation:
If you use Pascal's triangle, which I did, you will look at the 5th row of the triangle which contains the numbers 1, 4, 6, 4, 1
If we expand using a = 2x and b = -1, then the expansion looks like this:

If you simplify all that down by multiplying, you'll get

If you don't know how to use Pascal's triangle, you need to learn. It's so very cool!
Answer:120
Step-by-step explanation:
If x is length of the diagonal then
x^2 = 3^2 + 4^2 = 25
x = sqrt25 = 5
Diagonal is 5 units long