Aplica la formula general en las siguientes ejercicios

a)4x^2 = 9x - 2
b) 5x^2 - 9x= -4
c)2x^2 + x = 55
d)3x^2 - 8x= 3
e) 7x^2 - 3x = 4
f)4x^2 - 10x= 6
g)5x^2 = 3x + 14
h) 8x^2 = x + 7
i)3x^2 = 10x +25
j) x^2 + 9x - 10

State whether weight is a function of height for the six students and explain. a. yes, height is a function of weight because two students weigh 165 pounds but have different heights. b. no, height is not a function of weight because two students weigh 165 pounds but have different heights. c. yes, weight is a function of height because for each value of height there is one corresponding value of weight. d. no, weight is not a function of height because there is not enough data to determine a function.

The probability that a college student belongs to a health club is 0.3. the probability that a college student lives off-campus is 0.4. the probability that a college student belongs to a health club and lives off-campus is 0.12. find the probability that a college student belongs to a health club or lives off-campus. tip: p(a or b) = p(a) + p(b) - p(a and b) 0.54 0.58 0.70 0.82

Solve 4 ln x=2ln25 a) x=5 b) x=25 c) x=625