3 years ago

How to know if an equation is false, true, or an open scentence

2 answers:

7 0

To know when a equation is false, it is simply incorrect. When a equation is true, it will be correct. An open sentence is a statement which contains a variable, and becomes either true or false, depending on the value that replaces the variable. Hope this helps!

beks73 [17]3 years ago

4 0

Well it is true if the problem is the right with the right answer. If not you have a false eqaution.

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Vedmedyk [2.9K]

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Step-by-step explanation:

23 1/2 *6=141

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3 years ago

Find the area of the shaded region.

Citrus2011 [14]

Answer:

pi × 18cm^2

Or approximately,

56.52cm^2 (using 3.14 for pi)

56.5487cm^2 (using pi button on calculator)

Step-by-step explanation:

Area of a circle is pi times [radius squared].

All circles are 360°.

Problem can be solved by finding area of whole circle, and then using ratios.

Whole Circle: area = pi × (9cm)^2 = pi × 81cm^2

80° / 360° = Area[shaded] / (pi × 81cm^2)

pi × 18cm^2 = Area[shaded]

((If you read my answer before the edit, I am sorry. I made a calculator error.))

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3 years ago

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LekaFEV [45]

Answer:

32 or 34 I multiply 18 by 4 to get it

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AleksAgata [21]

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3 years ago

Last summer, there were 890 houses for sale in Annie's town. The other 110 houses in the town were not for sale. What percentage

marusya05 [52]

Answer:

89%

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First find the total houses

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out of the 1000, 890 were for sale

so 890/1000 divide by 100

8.9/10

or 89%

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3 years ago