I think it's C) but the answer should be 6561.
3 groups and 8 people...
Will give you your answer
Answer:
x=6
Step-by-step explanation:
you have to find the y value which should be 3 then subtract the x value. Which should be 6
The answer is 152 because 9+10 is 19 and 2x4 is 8 so 19 x8 is 152
Step-by-step explanation:
there are 2 similar triangles : ABE and DCE
that means they have the same angles, and the scaling factor from one triangle to the other is the same for every side.
and that means that
DE/AE = EC/BE (= DC/AB)
we know that
AE = AD + DE
BE = BC + EC
a.
so, we have actually
DE/(AD+DE) = EC/(BC+EC)
DE/(10+DE) = 8/(2+8) = 8/10 = 4/5
DE = 4(10+DE)/5
5DE = 4(10+DE) = 40 + 4DE
DE = 40 cm
b.
AD/DE = 3/5
BC/EC must be 3/5 too.
15/EC = 3/5
15 = 3EC/5
75 = 3EC
EC = 25 cm
Answer:
obtuse (anything above 90* is obtuse)
Step-by-step explanation:
