Answer:
B
Step-by-step explanation:
Using the cosine ratio in the right triangle and the exact value
cos45° =
, then
cos45° =
=
=
( cross- multiply )
c = 3
Answer:
(-4, -7)
Step-by-step explanation:
21y=-147
y=-7
2x-5x(-7)=27
x=-4
You do the reverse and divide the 2 values to find out the last one
72/9 = 8
Do you get it?
Answer:
distance = 5
Step-by-step explanation:
Use Pythagorean Theorem or Distance Formula (which comes from Pythagorean Thm anyway) see image.
You have a 2/9 chance of it being white. It is how many of that color or number over the total, so you have a 2/9 chance of it being white.