Answer:
Step-by-step explanation:
We don't necessarily know if this is an equilateral triangle because it doesn't have congruency marks. But it does look like one, so I'd say 60 because 180 (sum of all angles) divided by three (total number of angles) is 3. Either that or "cannot be determined."
1) first pick red 5/9 blue 4/9
2) second pick when red has been picked red now becomes 4/8, blue stays 4/8
2) Second pick when blue has been picked blue now becomes 3/8, red stays 5/8
Mind you, you only need both different colours so:
first pick red 5/9 x sec pick blue 4/8 = 20/72
and first pick blue 4/9 x sec pick red 5/8 = 20/72
add both up 20/72 + 20/72 = 40/72 = 5/9
Answer:
-1
Step-by-step explanation:
You almost got it but it's a negative 1!!
Answer:
Exponential Decay
Step-by-step explanation:
Our base (0.78) is less than 1. Therefore our function is one of decay.
Answer: x=2
Step-by-step explanation:
Given
9(x+1)=25+x
Distributive property
9x+9=25+x
Subtract x on both sides
9x+9-x=25+x-x
8x+9=25
Subtract 9 on both sides
8x+9-9=25-9
8x=16
Divide 8 on both sides
8/8 x=16/8
x=2
Hope this helps!! :)
Please let me know if you have any question