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Yuri [45]
3 years ago
6

Square root of 9/25

Mathematics
1 answer:
blagie [28]3 years ago
6 0
<h3>Question:</h3>

to find square root of 9/25

<h3>Solution:</h3>

\tt \sqrt{ \dfrac{9}{25} }

\implies \tt \sqrt{ \dfrac{3 \times 3}{5 \times 5} }

\implies \tt \dfrac{3}{5}

\implies \boxed{\boxed{ \tt 0.6}}

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The product of two rational numbers is 1.5. Their sum is 3.5. What are the two numbers?
Nikolay [14]
Easy, 3 and 0.5

but ok the math way

xy=1.5
x+y=3.5

y=3.5-x
x(3.5-x)=1.5
3.5x-x^2=1.5
0=x^2-3.5x+1.5
quadratic
ax^2+bx+c=0
x=\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}

a=1
b=-3.5
c=1.5

x=\frac{-(-3.5)+/- \sqrt{(3.5)^{2}-4(1)(1.5)} }{2(1)}
x=\frac{3.5+/- \sqrt{12.25-6} }{2}
x=\frac{3.5+/- \sqrt{6.25} }{2}
x=\frac{3.5+/- 2.5}{2}
x=\frac{3.5+ 2.5}{2} or x=\frac{3.5- 2.5}{2}
x=6/2 or 1/2
x=3 or 0.5
those are the numbers


3 and 0.5


6 0
3 years ago
Read 2 more answers
Two squares have sides 12cm and 4cm respectively. What is the ratio of their sides​
Nookie1986 [14]

Answer:

3 : 1

Step-by-step explanation:

We have to compare the value of two sides.

Ratio of sides = 12 : 4 = \dfrac{12}{4}=\dfrac{4*3}{4*1}=\dfrac{3}{1}

                       =  3 : 1

6 0
2 years ago
Find the equivalent ratio for 32:__=12:24
Igoryamba
   
32 : 64 = 12 : 24

or


\displaystyle\\&#10; \frac{32}{\bf64} = \frac{12}{24}



6 0
3 years ago
Read 2 more answers
PLEASEEE HELP MEEEE!!!
Romashka [77]

Use substitution

From second equation:-

x = 13 - 5y,                   Substitute for x in the first eqaution:

(13 - 5y)^2 + y^2 = 13

169 -130y + 25y^2 + y^2 - 13 = 0

26y^2  - 130y + 156  = 0

26(y^2 - 5y + 6) = 0

26(y - 3)(y - 2) = 0

y = 2 , y = 3

From the second equation when y = 2, x =  13 - 5(2) = 3

and when y = 3,  x = 13 - 5(3) = -2

So the solution is   [3, 2} and {-2, 3}



4 0
4 years ago
The population of Greater Accra increased by 20% and became 900,7000. The original population of the city was:
allochka39001 [22]

Answer:

the original population of the city is 7,505,833

Step-by-step explanation:

Given;

new of the population of the city, Y = 9,007,000

the percentage increase of the city, = 20% = 0.2

Let the original population of the city = X

New population, Y = X  + 0.2X

                           Y = X(1 + 0.2)

                           Y = X(1.2)

                           Y = 1.2X

                           X = Y/1.2

                           X = (9,007,000) / 1.2

                           X = 7,505,833

Therefore the original population of the city is 7,505,833

3 0
3 years ago
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