1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nirvana33 [79]
3 years ago
8

Why isnt 1953125 a square number

Mathematics
1 answer:
lesya [120]3 years ago
7 0

Answer:

Since the question is why 1953125 is not a square number, you don’t need a test for perfect squares, you only need something that shows this particular number is not a perfect square.

One starting test for showing a number will NOT be a perfect square is to use “casting out 9’s”. Remove any digits that are 9 or that add up to 9.

Thus: 1953125 becomes 153125 (removing 9) which then becomes 125 since 1+5+3=9. [OR: 53, since 1+1+2+5 = 9] [OR: 35]

(Note that you can repeat the whole process until you have cast out all 9s.)

Examine the number that is left. If it is not a perfect square, then the original number cannot be a perfect square.

125 is not a perfect square [nor is 53 or 35], so 1953125 cannot be a perfect square.

You might be interested in
Write the equation of a circle for which the endpoints of a diameter are (-2,-2) and (4,-10)
Maurinko [17]

Answer:

Therefore the required Equation of Circle

x^{2}+y^{2}-2x+12y+12=0

Step-by-step explanation:

Given:

End point of Diameter be

point A( x₁ , y₁) ≡ ( -2 ,-2 )

point B( x₂ , y₂) ≡ ( 4 , -10 )

To Find:

Equation of a circle =?

Solution:

When end points of the Diameter are A( x₁ , y₁) , B( x₂ , y₂). then the Equation of Circle is given as

(x-x_{1})(x-x_{2})+(y-y_{1})(y-y_{2})=0

Substituting the end point are

(x-(-2))(x-4)+(y-(-2))(y-(-10))=0\\(x+2))(x-4)+(y+2))(y+10))=0\\

Applying Distributive Property we get

x^{2} -2x-8+y^{2}+12y+20 =0\\\\x^{2}+y^{2}-2x+12y+12=0

Therefore the required Equation of Circle

x^{2}+y^{2}-2x+12y+12=0

6 0
2 years ago
What’s the ratio between the numbers 36 and 48
fiasKO [112]

36 and 48 have the ratio of 3:4

6 0
2 years ago
**I really need help on this! Please answer!*
AleksandrR [38]
In order to determine the total points scored by Jeremy's quarterback, we simply need to multiply the actions performed by the quarterback with the pointing system. In this case we have the following equation:

(6)(2) + (0.5)(16) + (-0.5)(7) + (-1.5)(2) =  13.5

Thus, Jeremy's quarterback scored a total of 13.5 points in one game. 
6 0
3 years ago
The number of mosquitoes in Brooklyn (in
stealth61 [152]

Answer:

Maximum is 4

Step-by-step explanation:

M(x) is quadratic function, so we need to fin maximum.

m(x)=-x(x-4)

m(x)=-x^2+4x

To find a maximum we need to find m’

M’(x)=-2x+4

M’(x)=0 if x=2

The maximum is in the point x=2

M(2)=-2(2-4)=4

5 0
3 years ago
Read 2 more answers
HELPPP MEEEEEEEEEEEEEEEEEEEEEEE
vekshin1
The third one hope that helps
8 0
2 years ago
Other questions:
  • a bird flies from the bottom of a canyon that is 81.8 feet below sea level to a nest that is 596 3/5 feet above sea level. what
    8·1 answer
  • Which expression is equivalent to
    8·2 answers
  • Two angles are supplementary if the sum of their measures is 180.
    11·1 answer
  • What is the scale of the model of Venus
    15·1 answer
  • Given the figure what is the value of x show your work
    5·1 answer
  • An electronics company is planning to introduce a new line of computers. For the 1st year, the fixed costs for setting up the pr
    12·1 answer
  • SAVINGS ACCOUNT How much interest will Hannah earn in 4 years if she deposits $630 in a savings account at 6.5% simple interest?
    6·1 answer
  • What is<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B81%7D%20" id="TexFormula1" title=" \sqrt{81} " alt=" \sqrt{81} " align
    15·2 answers
  • Solve please, Thanks.
    12·2 answers
  • Pls help with math it’s due tonight
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!