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pashok25 [27]
3 years ago
13

A pure substance that is made of only one kind of atom is called _________.

Mathematics
2 answers:
mariarad [96]3 years ago
6 0
A pure substance that is made of only one kind of atom is called an element. 

An element is a pure substance, which means it is made up of only ONE kind of atom. 

nexus9112 [7]3 years ago
6 0
A pure substance that is made of only one kind of atom is called an element I hope this help:) have a nice day
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BC has endpoints B(-3,-5) and C(12,12). FInd the coordinates of the midpoint of BC
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Answer:

(9/2, 7/2)

Step-by-step explanation:

The easiest way to remember how to do this problem is to average the x-coordinates and average the y-coordinates.

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Step-by-step explanation:

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8 0
3 years ago
Will Mark Brainlest helpppp​
Anvisha [2.4K]

Answer:

R = \left[\begin{array}{ccc}-3&-2\\1&-3\\\end{array}\right]

Step-by-step explanation:

P - Q + R = I ( I is the identity matrix )

\left[\begin{array}{ccc}2&4\\3&5\\\end{array}\right] - \left[\begin{array}{ccc}-2&2\\4&1\\\end{array}\right] + R = \left[\begin{array}{ccc}1&0\\0&1\\\end{array}\right] ( subtract corresponding elements )

\left[\begin{array}{ccc}2-(-2)&4-2\\3-4&5-1\\\end{array}\right] + R = \left[\begin{array}{ccc}1&0\\0&1\\\end{array}\right]

\left[\begin{array}{ccc}4&2\\-1&4\\\end{array}\right] + R = \left[\begin{array}{ccc}1&0\\0&1\\\end{array}\right]

R = \left[\begin{array}{ccc}1&0\\0&1\\\end{array}\right] - \left[\begin{array}{ccc}4&2\\-1&4\\\end{array}\right] = \left[\begin{array}{ccc}-3&-2\\1&-3\\\end{array}\right]

6 0
3 years ago
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