Answer:
34.875
Step-by-step explanation:
12. Answer: 2130
<u>Step-by-step explanation:</u>
T = -0.01y + 10.6
9.2 = -0.01y + 10.6
<u>-10.6</u> <u> -10.6 </u>
-1.4 = -0.01y
<u> ÷-0.01</u> <u>÷-0.01 </u>
140 = y
"y" represents the number of years after 1990
1990 + 140
= 2130
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13. Answer: -0.0036° per foot
<u>Step-by-step explanation:</u>
Since the relationship is linear, then we can set up the values as x, y coordinates and use the slope formula to find the rate of degrees over feet.
(6562, 63) and (16405, 28)
rate = 
= 
= 
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14. Answer: $0.28 per kWh
<u>Step-by-step explanation:</u>
Same reason as #13
(200, 55) and (500, 140)
rate = 
= 
= 
Answer: The answer you selected PS is correct.
Step-by-step explanation: A minor arc is a arc that is less than or equal to 180 degrees. PS looks to be exactly 180 degrees or at least close to it.
I hope this helps you
2x+5-3x+2=7-x
3x-2-2x-5=x-7
2x+5+3x-2=5x+3