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3 years ago

9.The following set represents a set of rational numbers: {12.6,11/15,___,0} which could be the missing value in the set?

Mathematics

1 answer:

scoray [572]3 years ago

5 0

Answer:

$\sqrt {196}$

Step-by-step explanation:

$\bigg \{ - 12.6, \: \frac{11}{15}, \: \red{ \boxed{\sqrt{196} }}, \: \: 0 \bigg\}$

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50 points if its correct with brainliest!! How many times smaller will a number become if you decrease it by 20%.

Likurg_2 [28]

Answer:

1/5 because 20% is equivalent to 20/100

Step-by-step explanation:

or 0.2 Thats what I got- sorry if I am wrong.

5 0

3 years ago

You are planning to plant a triangular garden in your backyard, as shown. You plan to put up a fence around the garden to keep o

Drupady [299]

Answer:

24 m

Step-by-step explanation:

The lenght of fencing needed is the sum of all sides the triangular garden represented on the coordinate grid.

The lenght of the triangular garden = 16 - 10 = 6 m

Lenght of the height = 8 - 0 = 8 m

Lenght of the hypotenuse can be calculated using coordinates of the two vertices of the ∆ that forms the hypotenuse lenght and also using the distance formula.

Coordinates of the two vertices = (10, 0) and (16, 8).

$distance = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$

Let,

$(10, 0) = (x_1, y_1)$

$(16, 8) = (x_2, y_2)$

$d = \sqrt{(16 - 10)^2 + (8 - 0)^2}$

$d = \sqrt{(6)^2 + (8)^2}$

$d = \sqrt{36 + 64} = \sqrt{100}$

$d = 10$

Length of fencing = 6 + 8 + 10 = 24 m

6 0

3 years ago

Find the solution of this system of equations. Separate the x- and y-values with a comma. x - 4y = 12 and x - y = 0

Elenna [48]

Use elimination and subtitution method to solve the problem.
First, eliminate x and you'll find the value of y
x - 4y = 12
x - y = 0
--------------- - (substract)
-3y = 12
y = 12/-3
y = -4

Second, subtitute -4 as y and you'll find the value of x
x - y = 0
x- (-4) = 0
x + 4 = 0
x = -4

The solution
x,y = -4,-4

6 0

3 years ago

I don’t need an explanation i just need an answer thank you!

Nina [5.8K]

Step-by-step explanation:

5 0

3 years ago

If 9:x = x:4, then x is 6. <br><br> true or false

Sophie [7]

We subsituete

9:6=6:4
treat as fraction
9/6=6/4

9/6=3/3 times 3/2
6/4=2/2 times 3/2

3/2=3/2
this is TRUE

7 0

2 years ago

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