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3 years ago

The function of f(x)=x^2+2x1/3 is polynomial True or False

Mathematics

1 answer:

WARRIOR [948]3 years ago

7 0

Answer: I'm pretty sure it's true

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Jenna has a piece of paper that is 84 square inches in area. It is 21/2 inches long. What is the length of the piece of paper in

Lerok [7]

Answer:

Step-by-step explanation:

Area = 84sqaure inch

Width = 2 1/2inch = 5/2inch

Area = l × width

So: 84 = l × 5/2

168 = 5l

l =>168/5

l = 33 3/5

7 0

3 years ago

How many solutions does the following equation have? 3(4x+3)=3+12x

TiliK225 [7]

3(4x+3)=3+12x

12x+9=3+12x

9=3

0 solutions

3 0

2 years ago

In right triangle HJK, angle J is a right angle and tan angle H = 1. Which Statement about triangle HJK MUST BE TRUE? A. Sin ang

Lubov Fominskaja [6]

I hope this helps you

tgH=HJ/HK

angle H+angle K=90

H=K=45 degree

sin45=cos46 = square root of 2/2

5 0

3 years ago

Read 2 more answers

Help pls :) tyyy!!!!!

emmainna [20.7K]

Answer:

The First one is equal the second one is greater the third one is less

Step-by-step explanation:

3 0

2 years ago

What is the average rate of change of f over the interval -1 on a separate sheet of paper and upload the work as a photo. Show a

Anarel [89]

Answer:

Average rate of change for the function $f(x)= x^2-x-1$ over the interval -1<x<1 is -1

Step-by-step explanation:

We need to find average rate of change of f over the interval -1 < x < 1

The function given is: $f(x)= x^2-x-1$

The formula used to find average rate of change is:

$Average\:rate\:of\:change=\frac{f(b)-f(a)}{b-a}$

We have, a = -1 and b = 1

Finding f(b) when b=1

$f(x)=x^2-x-1\\f(1)=(1)^2-(1)-1\\f(1)=1-1-1\\f(1)=-1$

Now, finding f(a), when a= -1

$f(x)=x^2-x-1\\f(-1)=(-1)^2-(-1)-1\\f(1)=1+1-1\\f(-1)=2-1\\f(-1)=1$

Now, putting values and finding average rate of change

$Average\:rate\:of\:change=\frac{f(b)-f(a)}{b-a}\\Average\:rate\:of\:change=\frac{f(1)-f(-1)}{1-(-1)}\\Average\:rate\:of\:change=\frac{-1-(1)}{1-(-1)}\\Average\:rate\:of\:change=\frac{-1-1}{1+1}\\Average\:rate\:of\:change=\frac{-2}{2}\\Average\:rate\:of\:change=-1$

So, average rate of change for the function $f(x)= x^2-x-1$ over the interval -1<x<1 is -1

4 0

3 years ago