Suppose that the functions s and t are defined for all real numbers x as follows. s(x)=x-4
t(x) = 4x+6
Write the expressions for (s • t)(x) and (s-t)(x) and evaluate (s+t)(-1).
(s. t)(x) = 1
(s – t)(x) = 0
(s + t)(-1) = 0
?

Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so, about which interval is it approximately symmetric?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2