Question

The quadratic polynomial f(x)=x^2+bx+c has roots at -3 and 1. What are the values of b and c?

Answer 1

-b is the sum of the roots, c is the product of the roots.

Sum of the roots is -3 + 1 = -2, so:

-b = -2
b = 2

Product of the roots is -3*1 = -3 so:

c = -3

Therefore the answer is:

\[x^2+2x-3\]

Answer 2

The purpose of studying the insects at a crime scene is to help establish _____.

Answer 3

The insect colonization of a corpse is _____.

unpredictable
predictable based on

Answer 4

The young maggots grow rapidly because of _____ offered by the dead body.

the ba

Answer 5

The rules of rounding are completely different for decimals compared to whole numbers.

Answer 6

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Answer 7

Quantitative analytic methods are needed to determine _____.

the amount of poiso

Answer 8

What is the electron pair structure (electron geometry), shape (molecular shape),

Answer 9

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Answer 10

Draw the lewis dot diagram for the following atoms

F

He

S

Answer 11

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Answer 12

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Answer 13

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Answer 14

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Answer 15

Are the following intensive and extensive properties?

Volume
Density

Answer 16

What is/are the units associated with the following quantity?

Volume
Density

Answer 17

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Answer 18

Which of the following are not polynomials?
A.2/3x^-2+x+1
B.x^3+0x^2+2x+sqrt2
C.x^2/5+sqrt3x+1
D.2/x^3+x+1/2
E. x^-2+x+1

Answer 19

Why was an algae cell included along with the plant and animal cells?

Answer 20

Which of the following equations demonstrate that the set of polynomials is not c

Answer 21

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Now she is showing signs of anorexia.