Answer:
The temperature on the first day was 10 °F.
Step-by-step explanation:
Let's find the temperature in every single step starting from the fourth day:
Then, the temperature of the third day was 7 °F
On the third day:
Hence, the temperature on the second day was 17 °F.
Now, on the second day:
Therefore, the temperature on the first day was 10 °F.
I hope it helps you!
I guess you want the measure of angle <CAB.
The angle ABD is flat thus its amplitude is 180 degrees. Because
<ABD = <ABC + <CBD you get
<ABC = <ABD - <CBD = 180° - 122° = 58°.
In a triangle, the sum of the amplitudes of the angles is 180°. Thus
<CAB + <ABC + <ACB = 180°. You get
<CAB = 180° - <ABC - <ACB = 47°.
Answer:
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Step-by-step explanation:
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