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3 years ago

An inequality that contains at least one variable

Mathematics

2 answers:

jeka943 years ago

6 0

Answer:

Open sentence.

Step-by-step explanation:

An inequality that contains at least one variable is called an open sentence; it can also be an equation. That is, when you substitute a number for the variable in an open sentence, the resulting statement is either true or false.

Example,

Equation x + 2 = 3

Until we know what the value of "x" is, we don't know if "x + 2 = 3" is true or false.

soldier1979 [14.2K]3 years ago

5 0

Answer: x-4 ≥12

Step-by-step explanation:

Hi, to answer this question we have to know what an inequality and a variable are:

Inequality: An inequality is a expression that compares two values, showing if one is less than, greater than, or simply not equal to another value.

Variable: is a symbol for a number that is unknown: they usually are letters (x;y).

An inequality that contains at least one variable could be:

x-4 ≥12

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Given A(3, 4), B(4, 3) and C(2, 1), what are the coordinates of C', the image of C under a rotation of 90 degrees about the orig

Aleks [24]

Given:

The coordinates of the points A, B and C are (3,4), (4,3) and (2,1)

The points are rotated 90° about the origin.

We need to determine the coordinates of the point C'.

Coordinates of the point C':

The general rule to rotate the point 90° about the origin is given by

$(x, y) \Rightarrow(-y, x)$

Substituting the coordinates of the point C in the above formula, we get;

$(2, 1) \Rightarrow(-1, 2)$

Therefore, the coordinates of the point C' is (-1,2)

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3 years ago

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FromTheMoon [43]

Answer:

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Step-by-step explanation:

Hope this helps you :))

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3 years ago

In a restaurant there are 5 possible pizza toppings chicken, pineapple olives mushrooms and beef Freddie picks two different top

Ksju [112]

Answer:

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Step-by-step explanation:

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6 0

3 years ago

What is the volume of the composite figure? (Round to the nearest hundredth. Use 3.14 for Pi.)

Natasha2012 [34]

The volume of composite figure is 385.17 cubic centimeters, if a half sphere and cone have a radius of 4 centimeters and height of 15 centimeters.

Step-by-step explanation:

The given is,

Composite figure is combination of a half sphere and cone

Both have a radius of 4 centimeters

The cone has a height of 15 centimeters

Step:1

Volume of composite figure = Volume of half sphere + Volume of cone

Step:2

Formula for volume of semi sphere,

$Volume of half sphere, V_{Half sphere} = \frac{2}{3} \pi r^{3}$

Where, r - Radius of Half sphere,

From given, r = 4 centimeters

$V_{Half sphere} = \frac{2}{3} \pi 4^{3}$

$= (0.6667) (3.14) (64)$ (∵ $\pi$ = 3.14 )

$V_{Half sphere}$ = 133.9733 cubic centimeters

Formula for volume of cone,

$Volume of cone, V_{cone} = \frac{1}{3} \pi r^{2} h$

where, r - Radius of cone

h - Height of cone

From given,

r = 4 centimeters

h = 15 centimeters

Volume of cone,

$V_{cone} = \frac{1}{3} \pi 4^{2}(15)$

$= (0.333333) (3.14)(16)(15)$ (∵ $\pi$ = 3.14 )

$V_{cone}$ $= 251.1997$ cubic centimeters

Step:3

Volume of composite figure = 133.9733 + 251.1997

Volume of composite figure = 385.17 cubic centimeters

Result:

The volume of composite figure is 385.17 cubic centimeters, if a half sphere and cone have a radius of 4 centimeters and height of 15 centimeters.

4 0

3 years ago

Read 2 more answers

Write the ratio as a fraction: 630kilometers in 5hours. Simplify your answer. ___ km/hour

Bad White [126]

Answer:

126/1=126

Step-by-step explanation:

630:5 as a fraction would be 630/5.

630/5 simplified would be 126/1.

Hope this helps :)

6 0

3 years ago

Read 2 more answers