Answer:
sin²x
Step-by-step explanation:
we have
(1 − cos x)(1 + cos x)=1-cos²x
Remember that
sin²x+cos²x=1 ------> i-cos²x=sin²x
therefore
(1 − cos x)(1 + cos x)=sin²x
Answer:
A
Step-by-step explanation:
- He spends:
- 30 mins on History
- 60 mins on English
- x mins on math
- so the total time he spends is
- one fourth of this is his math time, since x is math time, then we have
- But we know what totaltime in minutes is so
- or simply:
Answer:
26
Step-by-step explanation:
Answer:A. The theoretical probability for pink is 95/185 or about 51.35%
B. The theoretical probability for brown is 90/185 or about 47.82%.
C. To find the experimental probability, we will make another fraction. The number of outcomes will be the numerator and the total will be the denominator.
Pink 36/69 = 52.17%
Brown 33/69 = 47.82%
Step-by-step explanation:
2453 is the answer if I’m not mistaken.
