2. In a class of80 students in University, 45 are in mathematics, IS are good in both mathematics and in English, 13 are good in both mathematics and psychology, 16 are good in both English and psycholoo' only, 20 are good in psychology and 9 are good in of the three courses. 2pts. eaeb a) How many students are good in mathematics only? b) How many students are not good in any of the three course?

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)

faster, im not sure why but i know it is faster

      2

  2 is to go somewhat to the top right of a because it is squared    

v= a h/3