Answer:
See explanation
Step-by-step explanation:
cos62˚ ≈ 0.469
0.469 x 12 = 5.628
Answer:
around 917
Step-by-step explanation:
Answer:
area= 1/2 × d1 ×d2
d = diagonal
area= 1/2 ×24×18 =216 unit^2
Well, their speeds are (

is Jack's speed, and

is Richard's.

They, together, can paint 12 houses in 35 days. To get a single house, we only have to calculate

which is very close to 3 (a bit below)
Not 100% sure this is right but
60cm^2