2 years ago

IS 2/7 an irrational number? yes no

Mathematics

2 answers:

maw [93]2 years ago

6 0

No
An irrational number is a number that cannot be expressed as a fraction
So no

Ludmilka [50]2 years ago

5 0

Answer:

no, it is rational

Step-by-step explanation:

a rational number is one that can be expressed as division of an integer by a nonzero integer. So it is rational, not irrational.

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Please help! Thank you! Also, please explain thank you!

viva [34]

Answer:

2x=10*11

2x=110

x=55

5 0

3 years ago

Find the zeros (roots) of the following equations. f(x) = 2x5 - 9x4 + 12x3 - 12x2 + 10x - 3 = 0

Talja [164]

Hi,
$f(1)=2*1^5-9*1^4+12*1^3-12*1^2+10*1-3\\
=2-9+12-12+10-3\\
=0\\

f(x)=(x-1)(2x^4-7x^3+5x^2-7x+3)\\


g(x)=2x^4-7x^3+5x^2-7x+3\\

g(3)=2*3^4-7*3^3+5*3^2-7*3+3\\
=162-189+45-21+3\\
=0\\

g(x)=(x-3)(2x^3-x^2+2x-1)\\

h(x)=2x^3-x^2+2x-1\\

h( \dfrac{1}{2} )=2* \dfrac{1}{8} - \dfrac{1} {4}+1-1\\
=0\\

h(x)=(2x-1)(x^2+1)\\


f(x)=(x-1)(x-3)(2x-1)(x+i)(x-i)\\


$
Roots are 1,3,0.5,i,-i.

8 0

3 years ago

Find the measure of 7

fredd [130]

Answer:

126 degree

Step-by-step explanation:

use alternate angles and linear pair

7 0

2 years ago

When round off to nearest thousand, the number 42,099

Roman55 [17]

Answer:42000

Step-by-step explanation:

There is no number higher than 5 after the thousands so you would keep it the same

3 0

2 years ago

Read 2 more answers

QUESTION 17 The sum of two numbers is 53. The larger number is 1 less than 2 times the smaller. What are the two numbers?

Crazy boy [7]

I only know 17 which it should be D

7 0

2 years ago