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Scrat [10]
3 years ago
12

A point has zero dimension. True or False?

Mathematics
2 answers:
djverab [1.8K]3 years ago
7 0

Answer:

True

Step-by-step explanation:

A point is zero-dimensional with respect to the covering dimension because every open cover of the space has a refinement consisting of a single open set.

Dominik [7]3 years ago
6 0

Answer: Its true that a point has zero dimensions

Step-by-step explanation:

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For all real numbers a and b, 2a • b = a2 + b2 Is this true or false? Explain why it false or true.
Andru [333]

Answer:

It's false.... correct is a2+2ab+b2

Step-by-step explanation:

This cannot be factored anymore although. when we try to substitute a with 5 and b with 2, the answer in the right hand side of the equation is -9.

That's why it's false.

3 0
3 years ago
The scale on a map is 1 inch = 50 miles. What is the distance on the map between two towns that are exactly 318.75 miles apart?
Snezhnost [94]
You would divide 318.75 by 50 and get an answer of 6.375 inches
8 0
3 years ago
What expression is equivalent to 1/5•1/5•1/5•1/5
lara31 [8.8K]
The expression will be 589/15 
8 0
3 years ago
In two or more complete sentences, define the key features of the graph below and explain how to write its equation using functi
Korolek [52]
The graph has a vertex at (3, -2). It extends upward from there linearly at a slope of -1 to the left and 1 to the right. It is the graph of an absolute value function. If we assume it keeps extending upwards the domain is all real numbers. (which is what i would assume even though there's no arrows it doesn't have decipherable endpoints). The range is y ≥ -2 with y -intercept (0,1), and x-intercepts: (5,0) & (1,0).

To write the equation for this function, I would acknowledge that it is the translation of the graph of the standard absolute value function: f(x) = |x| ; right 3 and down 2. Which would be to subtract 3 from x and subtract 2 from the end.
 f(x) = |x - 3| - 2 
5 0
4 years ago
20 PTS!!!
Maslowich

Answer: x = -2

<u>Step-by-step explanation:</u>

vertical line means it will be x = ___

Set the x-values equal to each other and solve for x.

3 - 2x = x + 9

<u>    +2x</u> <u>+2x     </u>

3        = 3x + 9

<u>-9      </u>    <u>      -9 </u>

-6       =3x

    \frac{-6}{3} = \frac{3x}{3}

     -2 = x

4 0
3 years ago
Read 2 more answers
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