A journal published a study of the lifestyles of visually impaired students. Using diaries, the students kept track of several variables, including number of hours of sleep obtained in a typical day. These visually impaired students had a mean of 9.71 hours and a standard deviation of 2.06 hours. Assume that the distribution of hours of sleep for this group of students is approximately normal. Complete parts a through c. the number a. Find P(x> 12). P(x> 12) = (Round to four decimal places as needed.)

Q: Let f (x) = x2 - 3 and g(x) = 2x + 1. Find (fg)(2). 2) ***HINT: Start by first finding f (2) and…

A: The given functions are,

Q: The function f(t)=12(1+0.03)tf(t)=12(1+0.03)t can be used to determine the population, in thousands,…

A:

Q: Please

A: We find f(x+3) and f(x-1) first by plugging (x+3) and (x-1) in place of x in f(x) respectively.

Q: Thre remainder when the function f(x)=x^3+4x^2-4x-16 is divided by x-2 is 0. Find all the other…

A: Given function is fx=x3+4x2-4x-16. It is given that when function fx=x3+4x2-4x-16 is divided by x-2…

Q: Six trig functions for (6,8)

A:

Q: Find the area of the shaded region. f(x)=x4-12x³ +48x², g(x) = 44x + 105 Ay 340- (-1,61) -4 f…

A:

Q: Find x if f(x)= 5103 f(x) = 7.3*. Your answer

A: We know 729 = 93

Q: State positive and negative intervals for f(x) =-2x-5/3x+18

A: We have to find the positive and negative intervals for f(x) =-2x-5/3x+18i.ef(x) = For this we will…

Q: x-3/x+1 > 0

A:

Q: b. On a 6 foot long shelf filled with books, the function B models the distribution of the weight of…

A:

Q: Given the function f(x)=1x^2+52x+673 find all of the following: Find the extreme value of the…

A:

Q: A once-popular children's doll is slowly declining in popularity. The quartic function f(x) = -…

A:

Q: Drawthegraphofy = -e(x- 2).

A: Given- y=-ex-2 To draw- The graph of the above expression.

Q: True or False? In a hotel, 70 percent of the guests pay by American Express credit card. Suppose the…

A: Given that 70 percent of the guests pay by American Express credit card. Suppose the first X-1…

Q: Determine the intervals where y = x3 + 3x2 - 9x is increasing and decreasing

A: Given: y=fx=x3+3x2-9x we know that any given functionfx is increasing if f'x is greater than zero…

Roots

The main dissimilarity between real and complex roots is that the real roots are obtained as real numbers, in contrast with the complex roots, which are indicated as imaginary numbers. The standard format for depicting any complex number is in the form of a + bi.