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Leni [432]
3 years ago
5

Simplify this expression 3x+6x

Mathematics
2 answers:
Zielflug [23.3K]3 years ago
5 0
9x would be the answer.
Ierofanga [76]3 years ago
4 0
Since both 3x and 6x have the variable x in it, we can just go ahead and add 3 and 6.

3x+6x=9x
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How can undefinable terms be used to create precise mathematical definitions?
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Answer:

This is done by stating descriptions of these terms.

Step-by-step explanation:

Undefinable terms are terms with no formal definitions. Formal definitions are obtained when specific words are used to define a term. In mathematics, specifically, Geometry words like line, point, and plane have no definite definition, So descriptions are used to identify them.

For example, in describing a point, we note that a point has no dimensions, it is usually denoted with a capital letter, and it indicates a position. Also in a coordinate plane, it is denoted with descriptions such as  (u,v). Corresponding descriptions are given of other undefinable terms.

6 0
3 years ago
A pebble falls of a cliff at a height of 256 ft. If the equation for the height as a function is h(t)=-16^2 + initial height whe
AlladinOne [14]

Answer:

After 4secs

Step-by-step explanation:

Given the function of the height expressed as;

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If initial height = 256, then;

h(t) = -16t^2 + 256t

The pebble will hot the ground at when h(t) = 0

Substitute

0 = -16t^2 + 256t

16t^2 = 256

t^2 = 256/16

t^2 = 16

t = 4

Hence the pebble will hit the ground after 4secs

6 0
2 years ago
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Answer:

yes these are equivalent bcz

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Step-by-step explanation:

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What type of line is the graph of X equals -2
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Answer:

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Step-by-step explanation:

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What is 10 tens - 1 ten 1 tenth
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