24. Se tiene una piscina con forma rectangular de 4 m de ancho y 10 m de largo. Se desea colocar un borde de pasto de ancho x m como se representa en la
figura adjunta.
Xm
x m
Si el área de la superficie total que ocupa la piscina y el borde de pasto, es de
112 m², ¿cuál de las siguientes ecuaciones permite determinar el valor de x?
A)
x2 + 40 = 112
B)
x² + 14x = 72
C)
2x2 + 7x = 18
D) x2 + 7x = 18
E)
4x2 + 40 = 112

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.