Answer:
-√2
Step-by-step explanation:
f(x) = sinx + cosx
f'(x) = cosx - sinx
f''(x) = -sinx - cosx
f''(pi/4) = -sin(pi/4) - cos(pi/4) = -√2
log10x=−3
10 ^(log10x) = 10^(-3)
10x = 10^-3
x =10 ^ -3 / 10
x = 10^-4
x = .0001
x=1/ 10000
86%
7800 possibly? I'm not the best at math -.-
5 rooms
4 rooms = 9 hours
9 hours = 540 minutes
1 room = 540 ÷ 4 = 135 minutes
60 x 12 = 720 minutes (12 hours)
720 ÷ 135 = 5.33333
5.3333 estimated to nearest whole number = 5