Encontrar el vértice de la parábola dada por la siguiente ecuación:
y=2x^2+3x+1

-1,x = - 1/2

2

Step-by-step explanation:

u can use photomath

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

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im not sure