On vacation, Li’s family will be visiting an amusement park. Riders must be at least 48 inches tall to go on the roller coaster. Li’s little brother is 3 feet 6 inches tall. Which inequality can be used to find how many inches he must grow to be able to ride the roller coaster? (12 in. = 1 ft) 48 Greater-than-or-equal-to h - 42
48 Less-than-or-equal-to h - 42
48 Greater-than-or-equal-to h + 42
48 Less-than-or-equal-to h + 42

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Someone answer this asap rn for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =

In new york city at the spring equinox there are 12 hours 8 minutes of daylight. the longest and shortest days of the year very by two hours and 53 minutes from the equinox in this year the equinox falls on march 21 in this task you use trigonometric function to model the hours of daylight hours on certain days of the year in new york city a.what is the independent and dependent variables? b.find the amplitude and the period of the function. c.create a trigonometric function that describes the hours of sunlight for each day of the year. d. graph the function you build in part c. e. use the function you build in part c to find out how many fewer daylight hours february 10 will have than march 21. you may look at the calendar.