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NemiM [27]
3 years ago
14

1.

Mathematics
1 answer:
beks73 [17]3 years ago
3 0
The commutative property of addition means the order of the addends doesn't matter; we get the same sum.  In symbols

a+b = b+a

<span>11 + 7 = 7 + 11, choice B, is a good illustration of commutativity.

The next part asks us to use the commutative property.  Looking at the choices, we see it's not the commutative property of addition we're to use, it's the commutative property of multiplication.  Let's write that generally first:

</span>ab = ba

Applying that, <span>(4 + 7) * 3 = 3*(4+7), again choice B.
</span>
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Given the system of inequalities below: -3x - y &lt; 12 2x + 3y ≥ 9 Give the coordinates of three points that are members of the
earnstyle [38]

Answer:

The coordinates of the points that are members of the solution set

(-3,7), (0,4) and (2,3)

Step-by-step explanation:

we have

-3x-y< 12 ----> inequality A

The solution of the inequality A is the shaded area above the dashed line

2x+3y\geq 9 ----> inequality B

The solution of the inequality B is the shaded area above the solid line

The solution of the system of inequalities is the shaded area between the dashed line and the solid line

see the attached figure

Remember that,

If a ordered pair is a solution of the system of inequalities, then the ordered pair must be in the shaded area of the solution

Plot the points

(-3, 7), (-3, -7), (3,-7), (-4,-0), (0,-4), (0,4), (2,3), (-2,3), (2,-3)

therefore

The coordinates of the points that are members of the solution set

(-3,7), (0,4) and (2,3)

3 0
3 years ago
Please help mee What is the smallest positive integer whose proper divisors add up to more than the integer itself?
Law Incorporation [45]

Answer:

12

Step-by-step explanation:

The proper divisors of 12 are

1 2 3 4 6

Add those together you get 16

8 0
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Answer:

Leonardo emiliano Castañeda

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If x2 =<br> 20, what is the value of x?
leva [86]

Answer:

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Step-by-step explanation:

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