Hello,
sin² x-cos² x=sin² x-(1-sin² x)=2sin² x-1
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Answer:
A couple of hundreds
Step-by-step explanation:
In my brain
Answer: 24ft squared
Step-by-step explanation:
8x3 = 24
Y=Mx +c
M gradient so count how many squares per one line
C = y intercept (7.5) here it looks
Just sub in those
Answer:1/4 hour remaining
Step-by-step explanation:
Presenter 1 - 1/3 hour
Presenter 2 - 1/6 hour
Presenter 3 - 1/4 hour
Convert to least common denominator of 12
4/12 + 2/12 + 3/12 = 9/12
12/12 - 9/12 = 3/12
Reduce 3/12 to get 1/4 hour remaining
