Select all the correct answers. Which statements are true about the functions y = sin(x), y =
Cos(t), and y = tan(s)?

1. The domains et y = sin(t)-y = cos(I) and y = tan(t)-are-al real numbers:
2. Both y = sin(x) and y = tan(s) are increasing on the interval (0, 3), and y = cos(a) is
decreasing on that interval.
3. The amplitudes of y = sin(s), y = cos(x), and y = tan(s) are 1.
4. The graphs of y = sin(x) and y cos(1) do not have midlines.
5. The periods of y = sin(x) and y = cos(s) are 277, and the period of y = tan(t) is .

Given that abcd is a rhombus, what is the value of x?

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

10 points? ? +++ me asap gabriella uses the current exchange rate to write the function, h(x), where x is the number of u. s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a) gabriella averages 7.5 u. s. dollars for every 100 euros. b) gabriella averages 100 u. s. dollars for every 25 euros. c) gabriella can exchange 75 u. s. dollars for 100 euros. d) gabriella can exchange 100 u. s. dollars for 75 euros.