All categories

2 years ago

What is the root number of 121?

Mathematics

1 answer:

Rom4ik [11]2 years ago

3 0

Answer:

11 is the root of 121 ........

You might be interested in

If the length of a rectangle is a two-digit number with identical digits and the width is 1/10 the length and the perimeter is 2

Oksanka [162]

If the length of a rectangle is a two-digit number with identical digits and the width is 1/10 the length and the perimeter is 2 times the area of the rectangle, what is the the length and the width

Solution:

Let the length of rectangle=x

Width of rectangle=x/10

Perimeter is 2(Length+Width)

= 2(x+x/10)

Area of Rectangle= Length* Width=x*x/10

As, Perimeter=2(Area)

So,2(x+x/10)=2(x*x/10)

Multiplying the equation with 10, we get,

2(10x+x)=2x²

Adding Like terms, 10x+x=11x

2(11x)=2x^2

22x=2x²

2x²-22x=0

2x(x-11)=0

By Zero Product property, either x=0

or, x-11=0

or, x=11

So, Width=x/10=11/10=1.1

Checking:

So, Perimeter=2(Length +Width)=2(11+1.1)=2*(12.1)=24.2

Area=Length*Width=11*1.1=12.1

Hence, Perimeter= 2 Area

As,24.2=2*12.1=24.2

So, Perimeter=2 Area

So, Answer:Length of Rectangle=11 units

Width of Rectangle=1.1 units

7 0

2 years ago

Read 2 more answers

Find the Area of the Shaded Region.

dimulka [17.4K]

Answer:

42cm×22 =...............

5 0

2 years ago

1. What is the solution of n² – 49 = 0? (1 point)

maks197457 [2]

Answer:

1. $n=\pm7$

2. $x=\pm7i[tex]3.[tex]\pm 12x =a$

4. 22

Step-by-step explanation:

1. $n^2 - 49 = 0$

$n^2 =49$

$n= \sqrt{49}$

$n=\pm7$

2. $x^2+64 = 0$

$x^2 =-64$

$x= \sqrt{49}$

$x=\pm7i[tex]3. Area of square = [tex]a^{2}$

Where a is the side

We are given an area o square = $144x^{2}$

So, $144x^{2}=a^{2}$

$\sqrt{144x^{2}}=a$

$\pm 12x =a$

4. We are given that the solution of quadratic equation -9 and 9

So, equation becomes:

$(x+9)(x-9)=0$

$x^2- 81=0$

So, in the given equation $x^2 + z = 103$

z should be the number from which if we subtract 103 so we get 81

Substitute z = 22

$x^2 + 22 = 103$

$x^2 + 22 -103=0$

$x^2 -81=0$

Thus the value of z is 22

8 0

2 years ago

Read 2 more answers

What is the solution to this inequality?

algol13

B hus5hoegu9r47jssnkiroohdd

7 0

2 years ago

On graph paper, draw four different rectangles that each have an area of 24 square units. Then find the perimeter of each one.

skelet666 [1.2K]

My first rectangle is 1 unit wide and 24 units long. Its area
is 24 square units and its perimeter is 50 units.

My second rectangle is 2 units wide and 12 units long. Its area
is 24 square units and its perimeter is 28 units.

My third rectangle is 3 units wide and 8 units long. Its area
is 24 square units and its perimeter is 22 units.

My fourth rectangle is 4 units wide and 6 units long. Its area
is 24 square units and its perimeter is 20 units.

4 0

2 years ago