Answer is a. (-13, 12) b. (4, 11)
Step by step
When your rule is
(x,y) ➡️ (x -8, y +2)
a)
You take your input (-5, 10) and add your input rule to that input to get your output.
Input of x is -5, add x rule -8 = -13
Input of y is 10, add y rule +2 = 12
Your output or new coordinate is (-13, 12)
b) You take your input (12, 9) and add your input rule to that input to get your output.
Input of x is 12, add x rule -8 = 4
Input of y is 9, add y rule +2 = 11
Your output or new coordinate is ( 4, 11)
If your rule changes the process is still the same. Remember to watch adding or subtracting negatives. You can use a graph and plot your input and count out your “rule” to double check your work if you want.
Answer:
Step-by-step explanation:
each Triangle is 180° so get 180-60-30 and whatever’s left that’s your answer
Answer:
110
Step-by-step explanation:
longest side would by 40 so 40 - 20 = 20. Add all the sides up 25+25+40+20=110
Answer:
4.7
Step-by-step explanation:
The red I think is hinting to the x.
Answer:
n = 9
Step-by-step explanation:
20 + 18 + ... + 6 + 4
---------------------------
a = 20 ; d = -2 ; n = ?
--------
4 = 20 + (n-1)(-2)
-16 = (n-1)(-2)
---------
n-1 = 8
n = 9
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S(9) = (9/2)(20+4)
S(9) = 4.5*24
S(9) = 108
