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3 years ago

-2y^2-19y+33 trail and error

Mathematics

1 answer:

Alexandra [31]3 years ago

7 0

Answer: (-2y+3)(y+11)

Step-by-step explanation:

33 is 3×11 so expect something like

(y+3)(y+11) = y^2+14y+33

leading term has coefficient -2 so

one factor is like (-2y+__)

Try (-2y+3)(y+11) = -2y^2-19y+33

which happens to be the answer

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Answer:

$A(t)=975(1.025)^t$

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Step-by-step explanation:

We are given that in 2018

Number of students at the villages high school=975

Increasing rate,r=2.5%=0.025

We have to write and use of exponential growth function to project the populating in 2025.

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According to question

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Step-by-step explanation:

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