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3 years ago

What is the difference between a constant and a variable

Mathematics

2 answers:

denis-greek [22]3 years ago

7 0

Answer:

A constant is a number that stays the same. A variable is number that doesn't remain the same.

Sphinxa [80]3 years ago

5 0

A constant never changes. Its value is constant, which is a big part of the reason why it's called a "constant". " 42 " is constant. It doesn't depend on anything.

A variable can change. Its value varies, and that's why it's described as "variable". ' x ' is a variable. Its value depends on what ' x ' is.

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What is the value of x?<br> Enter your answer in the box.<br><br> x=

ElenaW [278]

Answer:

x = 12

Step-by-step explanation:

(10x - 20)° and (6x + 8)° are on the straight angle and they are both equal 180°

to find the value of x:

10x - 20 + 6x + 8 = 180

10x + 6x = 180 + 20 - 8

16x = 192

x = 192/16

x = 12

3 0

3 years ago

Ian is going to water his plants is it reasonable to say he will fill the watering can with 3 liters of water explain

sveta [45]

This is possible for a smaller watering can. 3 liters is about 3/4 of a gallon (imagine a jug of milk).

It is equivalent to 3000 ml, which would also be 100 ounces of water.(5 -20 oz bottles of water).

7 0

3 years ago

Please help me with the question please ASAP

erica [24]

Answer:

The ratio of perimeter of ABCD to perimeter of WXYZ = $\frac{2}{3}$

Step-by-step explanation:

First, we have to determine the multiplicative factor of the dimensions for both figures.

Considering sides AB and WX,

multiplicative factor = $\frac{12}{8}$

= 1.5

So that:

XY = 6 x 1.5 = 9

YZ = 7 x 1.5 = 10.5

ZW = 7 x 1.5 = 10.5

Perimeter of ABCD = 6 + 7 + 7 + 8

= 28

Perimeter of WXYZ = 9 + 10.5 + 10.5 + 12

= 42

The ratio of the perimeters of the two quadrilaterals can be determined as;

ratio = $\frac{perimeter of ABCD}{Perirmeter of WXYZ}$

= $\frac{28}{42}$

= $\frac{2}{3}$

The ratio of the perimeter of ABCD to perimeter of WXYZ is $\frac{2}{3}$ .

5 0

3 years ago

Help please! Will give brainly

luda_lava [24]

1.) 9 - c < 2 , C = 7
Graph 7 on the number line.
2.) -3c > 15, C = -5
Graph -5 on the number line.
Hope this helps.

4 0

3 years ago

I need awnsers please

romanna [79]

$y=f(x) =12\sqrt x\\\\\text{Replace x with y and then solve for y:}\\ \\~~~~~~~x = 12\sqrt y\\\\\implies \sqrt y = \dfrac{x}{12}\\ \\\implies y = \dfrac{x^2}{144}\\\\\implies f^{-1} (x) = \dfrac{x^2}{144} \\\\\text{Hence the inverse of the function is}~ \dfrac{x^2}{144}$

5 0

2 years ago