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3 years ago

2a + 6 = 12 What does (A) equal?

Mathematics

2 answers:

Daniel [21]3 years ago

8 0

Answer:

a = 3

Step-by-step explanation:

2a + 6 = 12

-6 -6

----------------

2a = 6

take six and divide by 2

a = 3

Semmy [17]3 years ago

8 0

Answer:

Step-by-step explanation:

2a + 6 = 12

2a = 6 - 12

2a = 6

a = 6/2

= 3

Hope this helps

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What is the standard error of a sampling distribution with a population standard deviation of 12 and the sample size of 81?

Marizza181 [45]

Answer: d. 1.3333

Step-by-step explanation:

We know that the standard error of a sampling distribution is given by :-

$S.E.=\dfrac{\sigma}{\sqrt{n}}$

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Then, the standard error of a sampling distribution with a population standard deviation of 12 and the sample size of 81 will be :-

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3 years ago

Which numbers below are part of the domain for this graph? Select all that apply.

olya-2409 [2.1K]

The numbers which are a part of the domain for the graph are: 6, 1 and 2.

<h3>Which numbers are part of the domain?</h3>

The domain of a graph is a set of all possible input, x-values. Consequently, since the domain of the graph given ranges over intergers, 1 to 10, it follows that numbers which are part of the domain are; 6, 2, and 1.