For y = 3x - 2x^2 + 5x^3, show how to find the value for y when x = 3. show your work.

When x = 3 just substitute in equation and solve

y = 3(3)- 2x^2 + 5x^3

Y= 9-2(3)^2+5(3)^3

Y = 9-18+135

Y= 126

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.