Answer:
24/7
Step-by-step explanation:
tan 2t =+ 2 tan t) /( 1 - tan²t)
(2(-4/3))/(1- 16/9)
(-8/3)/(-7/9) = 24/7
2100 - 0700 = 1400
In Beijing, it is 14 hour later than in Washington DC.
2100 + 1400 =
Split 1400 into 300 + 1100
2100 + 300 = 2400 = midnight of the next day.
2400 = 0 (midnight)
0 + 1100 = 1100
Answer: 1100 hours Sunday in Beijing
25/14
According to BODMAS rule. multiplicaion comes first so, 11+14 gives you 25 and this is divided by 14
The two inequalities translate to the following system:

Each inequality yields the following solution:

So, we want a number to be (strictly) more than one, and less than or equal to 4. You can write this in many methods, the most common are
or [/tex] 1<x\leq 4 [/tex].
Usually, on number lines, we draw an open circle on excluded values, and a closed circle on included ones. So, we want an open circle on 1, closed on 4, and shaded between.