Using the Sine Rule:-
20 /sin 45 = BC / sin 30
BC = 20 sin 30 / sin45
= 20 * 1/2 / 1 / sqrt2
= 20 * 1/2 * sqrt2
= 10 sqrt2 answer
When the sides are dilated by a factor of 6, the area increases by a factor of 6², which is 36.
3*36=108 mm²
Don’t kill you self because it’s not that serious okay? Also I have no idea what this is
If Ayana gave 1/5 of the peanuts to her sister and then 3/4 of what remained to another sister, she kept 1/5 for herself. It's because:
5/5 is what she got at the beginning
5/5 - 1/5 = 4/5 is what she gave to one sister
3/4 of what remained is 3/4 * 4/5 = 12/20 = 3/5 for another sister
So now 4/5 - 3/5 = 1/5 is what she kept for herself.
Answer:
−3x^2+2x+1
Step-by-step explanation:
combine like terms
8x^2−11x^2
then just add the rest if theres no more like terms
hope this helps :/
