Answer:
19 - 8√3
Step-by-step explanation:
(-4 + √2)^2
= (-4)^2 + 2(-4)(√3) + √3)^2
= 16 - 8√3 + 3
= 19 - 8√3
Answer:
1:350 i think
Step-by-step explanation:
i could be wrong
Answer:
36 degrees
Step-by-step explanation:
Subtract 54 from 90
Answer:
60x + 25 + 60y
Step-by-step explanation:
60 times x plus 60 times y plus 25
Answer:
It takes 46 minutes for 10 people to paint 3 walls
It takes 92 minutes for 10 people to paint 6 walls (twice as long because you have twice as many walls)
You only have 4 people to paint the walls instead of 10 people
Therefore it will take 2.5 times as long (10/4=2.5)
2.5*92=230 minutes