Answer:
can u retake the photo i cant see whole shapes ill answer the question when u post the new one
Step-by-step explanation:
4^3 is 4*4*4=64
The exponents tell us how many times we multiply the base by itself.
She did not convert 1 minute into 60 seconds. and 15 hours in seconds.
she did it like this:
15min ×60 seconds/1 min
900 seconds.
The SI unit of time is second so she should have converted the hours and minutes into seconds first and then start the calculation.
Step-by-step explanation:
1/sin10-√3/cos10
= (cos10 - √3sin10)/cos10sin10
multiplying 1/2 in denominator and numerator
= {(cos10/2) - (√3sin10/2)}/(cos10sin10/2)
= (cos60cos10 - sin60sin10)/(cos10sin10/2)
= cos(60 + 10)/(cos10sin10/2)
= cos70/(cos10sin10/2)
= 2cos70/cos10sin10
multiplying 2 on numerator and denominator
= 4cos70/2sin10cos10
=4cos70/sin20
=4cos70/cos70
= 4 proved
