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Elanso [62]
3 years ago
13

Is -9 a rational number

Mathematics
1 answer:
Artemon [7]3 years ago
6 0

Answer:

If we mean - √9, then it is a rational number.

Step-by-step explanation:

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10x10x10x10x10x10x10 in word form
Vsevolod [243]

Answer:

10,000,000

Step-by-step explanation:

ten million

5 0
3 years ago
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A triangle has side lengths measuring 2x + 2 ft x + 3 ft, and
Marta_Voda [28]

Answer:

3x+5 < n < x-1

Step-by-step explanation:

we know that

The <u><em>Triangle Inequality Theorem</em></u> states that the sum of any 2 sides of a triangle must be greater than the measure of the third side

so

Applying the Triangle Inequality Theorem

1) (2x+2)+(x+3) > n

solve for n

3x+5> n

Rewrite

n

2) (x+3)+n> 2x+2

n> x-1

therefore

3x+5 < n < x-1

5 0
3 years ago
The perimeter of the rectangle below is 84 unit . Find the length side of XY
lesya [120]

Answer:

25 unit

Step-by-step explanation:

See attachment for the missing figure.

Assuming the complete question is:

Side UY = 4z-1  

Side UV = 5z+3  

Perimeter of rectangle is given by:

2UY+2UV=P

2(4z-1)+2(5z+3)=84

8z-2+10z+6=84

18z+4=84

18z = 84 -4 =>

18z = 80

z= 4.45 unit

Side UV = 5z+3 => 5(4.45) + 3

Side UV ≈ 25 unit

SInce, Side UV = Side XY

Side XY≈ 25 unit

5 0
2 years ago
does anyone know how to help me with the letters in math, i dont understand it, and i need help, someone please? if you can can
galina1969 [7]

Answer:

Step-by-step explanation:

Letters are variables and those variable can store a number

Ex: x=5  y=2

evaluate : 3x+2y

we know that x is 5, so we know that 3x would be 15

we know that y is 2, so we know that 2x would be 4

then it says to add 3x and 2y, we would add 15 and 4 to get 19

(This is a very simple example, when you get older, the expression would be much more confusing.

3 0
3 years ago
Read 2 more answers
What is the solution to this system of linear equations?
alexandr1967 [171]

Answer:

A. (-1 , 3)

Step-by-step explanation:

          2x + y = 1

plus    3x - y = -6

------------------------------

5x = -5

x = -1

y = 1 - (2*-1) = 3

3 0
2 years ago
Read 2 more answers
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