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3 years ago

Evaluate the expression below when x = -1. 2x2 − 5 x + 9 -7 8 -3 8 -1 8 -1

Mathematics

1 answer:

nata0808 [166]3 years ago

3 0

Plug in the -1 inside the given equation:

y=2x²-5x+9-78-38-18-1

y=2(-1)²-5(-1)-126= -119

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Is a + b rational or irrational

Crank

Answer and fdaStep-by-step explanation:::

The answer depends on the numbers that are inputted for a and b.

If the numbers that are inputted for both a and b are rational, then a + b would be rational.

If the numbers that are inputted for both a and b are irrational, then a + b would be irrational.

If one of the variables is rational and the other is irrational, then a + b would be irrational.

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2 years ago

[HELP ASAP]~ A city has a population of 240000 people. Suppose that each year the population grows by 4%. What will the populati

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Answer:

multiply the population each year by 4% or 0.04

year 1 increase by 9600, population 249,600

year 2 increase by 9984, population 259,584

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Step-by-step explanation:

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3 years ago

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3 years ago

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Step-by-step explanation:

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What is 15 - 1/6n = 1/6n - 1

eduard

15-1/6n=1/6n-1
15+1=1/6n+1/6n
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3 years ago

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