We have that
cos(alfa)=0.2546
arc cos (0.2546)=75.2501---------- > 75.25°
the answer is 75.25°
Answer:
100
Step-by-step explanation:
160 * (5/8) = 100
Step-by-step explanation:
Linear equations. Make 2 new equations from the question. Name the first number as x and the second as y...
Answer: After about 9.03 hours the temperature first reach 82 degrees.
Step-by-step explanation:
The sinusoidal function is given by :
where, A = amplitude; , α= phase shift on the Y-axis and C = midline.
As per given,
Average daily temperature= [midline is average of upper and lower limit.]
A= 97-85 = 12
Phase shift:
Period = 24 hours;
Substitute all values in sinusoidal function, we get
Put y= 82, we get
Hence, After about 9.03 hours the temperature first reach 82 degrees.
Answer:
Step-by-step explanation:
4) (-2,3) ; (-1,-2)
5) line is parallel to x-axis. So, slope= 0
6) (1,1) ; (-2, -1)