Answer:
Step-by-step explanation:
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Plug in for a
2(4-b)+b=1
8-2b+b=1
8-b=1
b=7
Step-by-step explanation:
r^2+7=45-r
i think this is the write answer, i havent done that kind of math in awhile.
Angle SQN = 66 degrees (given)
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Use the inscribed angle theorem to get
Minor Arc SN = 2*(angle SQN)
Minor Arc SN = 2*(66)
Minor Arc SN = 132 degrees
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Arc PSN is a semicircle so it is 180 degrees, meaning that...
Arc PSN = (minor arc PS) + (minor arc SN)
180 degrees = (minor arc PS) + (132 degrees)
180 = (minor arc PS) + 132
180 - 132 = (minor arc PS) + 132 - 132
48 = minor arc PS
minor arc PS = 48 degrees
central angle RTP = minor arc PS = 48 degrees
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Focus on triangle PTR; isolate angle PRT
(angle TPR) + (angle PRT) + (angle RTP) = 180
(90) + (angle PRT) + (48) = 180
(90+48) + (angle PRT) = 180
138 + (angle PRT) = 180
138 + (angle PRT) - 138 = 180 - 138
angle PRT = 42 degrees
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Final Answer:
The measure of angle PRT is 42 degrees
Answer:
30°c
Step-by-step explanation:
Trace the value of 11 in the x-axis (Time) to the graph, and trace that point on the graph to the y-axis(Temperature). In doing so, the result is 30°c.
