Samir wants to work out the cost of the tiles needed to replace a roof. The roof has 4 identical faces. Each face is a triangle . Each triangle has a base length of 7.6m and s height of 4.8m. 1 pack of tile covers 13.8m2 and each pack cost £716,10. Calculate the total cost of the tiles for the 4 faces of the roof

for a it would be 24 children.

for b i don't understand the question. is it saying for each individual person they pick 5 reds to 7 greens or is it the whole group. clarify and i hope this can you.

step-by-step explanation:

a

step-by-step explanation:

a

step-by-step explanation:

strong negative correlation

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92