No, because all the sides have to be equal
Answer:
A Mile in a flat road race takes about 3 to 4 minutes. On a flat surface, the ride is relatively smooth with no significant hurdles, hills or tricky manoeuvers.
Step-by-step explanation:
The answer is B. And I am not that sure about my answer, but it has to be the correct answer for what you put. THANK YOU!!!!
Answer:
28.4
Step-by-step explanation:
To use the distributive property, split the 7.1 to 7 and .1
4*7 would be 28 and 4*.1 would be .4
Adding them together would make the answer 28.4
Answer: sin
= ± 
Step-by-step explanation:
We very well know that,
cos2A=1−2sin²A
⟹ sinA = ±
As required, set A = & cos a= 
,thus we get
sin =± 
∴ sin =±
= ±
since ,360° < <450°
,180° < <225°
Now, we are to select the value with the correct sign. It's is obvious from the above constraints that the angle a/2 lies in the III-quadrant where 'sine' has negative value, thus the required value is negative.
hope it helped!
