Question

The arithmetic mean of the roots of the equation 3x ² + 12x + k = o is equal to...?

a) 0 b) 1 c)2 d)3

Answer 1

\[(-b \pm \sqrt{b ^{2}-4ac})/2a\]
this is how you solve quadratic equations hope this is clear.

now b=12 here and the b^2-4ac=12^2-12k
lets call this D, so D=12^2-12k

than the two solutions will be like \[(-12\pm \sqrt{D})/6\]

when we take the arithmetic mean of them, that is just summing the 2 numbers and dividing by two. if we sum -sqrt D and + sqrt D they will cancel

so the solution will (12/6 +12/6) /2=2

Answer 2

Which inequality statement best represents the graph?

https://dlap.gradpoint.com/Resz/~0.

Answer 3

Identify the vertex of the graph. Tell whether it is a minimum or maximum.

https://dlap.

Answer 4

Which explanation provides the best real-world scenario of the graph?

If an object is dropped from a height of u201316 feet, the function h(t) = u201316t2

Answer 5

Identify the vertex of the graph. Tell whether it is a minimum or maximum.

https://dlap.

Answer 6

https://prnt.sc/l93b9t

Answer 7

Identify the vertex of the graph. Tell whether it is a minimum or maximum.

https://dlap.

Answer 8

in the bet by anton p chekhov what motivates the lawyer to participate in the bet

Answer 9

PLS HELP!!!!
Order the group of quadratic functions from widest to narrowest graph.

Answer 10

Choose the word or phrase that best matches the word in italics.

He feared that the crimes he had committed would result in his perdition.

Answer 11

unsigned long long int a[4][10] = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,1

Answer 12

(Swimming Reindeer)
What elements or principles of art does the piece use?

Answer 13

A geologist and South America discovers a bird itu2019s cold in the content 77% of its original amount of C u2013 14.

Answer 14

Which describes a shared goal of the NAACP and the Universal Fart Improvement Association (UNIA)?

Both encouraged African Americans to work together with c

Answer 15

Use the information and your knowledge of science to answer the question.

A scientist crosses morning glory plants of different flower colors to determine

Answer 16

Why were slaves denied the ability to read and write?

Answer 17

Round all answers to the nearest tenth.

Tim Jones needs help in making an investment decision.

Answer 18

what is the big bang theory?

Answer 19

Help with one math question!!!

Answer 20

calc help @vocaloid

Answer 21

Which measurements are equal to 321 decimeters? Check all that apply.