Answer:How do you rotate 180 degrees about the origin?
Rotation by 180° about the origin:
The rule for a rotation by 180° about the origin is (x,y)→(−x,−y) .
Step-by-step explanation:
<span>4x + 3y = 12
-2x - 5y = 1
multiply bottom by 2
</span><span>4x + 3y = 12
-4x - 10y = 2
add both equations
-7y = 14
divide by 7
y = -2
plug into first equation
4x + 3(-2) = 12
solve for x
4x = 18
x = 4.5
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It is fractions on a number line right?
Triangles are 180 degrees total so 80+40=120, subtract that from 180 and you’ll get B=60
Answer:
8
Step-by-step explanation:
The probability of picking out a certain colour = 12/48 = 1/4
So, this means that every 4 socks you pick out you can be sure of having one of each colour. If you need to find a pair, then you pick out 8.
Hope this helps
