Theorem of cosine:
a²=b²+c²-2bc(cos α) ⇒cos α=-(a²-b²-c²) / 2bc
In this case:
a=15 cm
b=10 cm
c=5 cm
cos α=-(15²-10²-5²) / 2*10*5
cos α=-100 / 100
cos α=-1
A=arc cos -1=180º This is impossible, because:
A+B+C=180º; then B=C=0º This is impossible for make a triangle (B>0 and C>0 if we want to make a triangle).
Therefore: it is not possible can make a triangle with side lengths of 5 cm, 10 cm and 15 cm.
a.)102*88=8976 in total.
8976/12=748 tiles
b.) 4*748=2992 dollars
c.) yes it qualifies
hope this is correct, if not, sorry for the inconvenience...
Answer:
k=4.5
Step-by-step explanation:
40.5/9
Answer:
Graph 3
Step-by-step explanation:
EXAMPLE 6=60
4= 40
SINCE THERE IS NO NORMAL NUMBERS AND THERE ARE 10 , 20 ,30 ETC..
THE NORMAL NUMBERS TURN INTO 10 20 AND SO ON..
HOPE IT HELPS
<span>0.02797202797 is your answer</span>
