190 ÷ 4 = 47.5 47.5 × 6 = 285 he could bike 285 in 6 days
To make calculation easier, we first multiply
1.35 × 100 = 135
then we need to find how many groups of 5 are there in 135.
to do so, we simply take
135 ÷ 5 = 27
therefore, the answer is <u>27.</u>
Answers are:
-15<span>°F
-78</span><span>°C
</span>23<span>°C
</span>199<span>°F</span><span>
</span>
<span>arccos (cos pi/2)=?
</span>cos pi/2=0, arccos (0)=?, we know that cos pi/2=0, so cos^-1 (o)= Pi/2, but cos^-1 (o)=arccos (0), so arccos (cos pi/2)=Pi/2
