Which graph represents a phase shift of pi/2 units right for the graph of y = cosx?
A. y = sinx
B. y = secx
C. y = csex
D. y = cos(x+pi/2)

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?

Math each whole number with a rational, exponential expression

How to write four times a number, minus 6,is equal to theee times the number+8 as an equqtion