Answer:
x is 10.
Step-by-step explanation:
3x + 12 = 42
<em>Subtract 12 from both sides</em>
3x = 42 - 12
<em>Subtract 12 from 42 to get 30</em>
3x = 30
<em>Divide both sides by 3</em>
x = 30/3
<em>Divide 30 by 3 to get 10</em>
x = 10
The matching is done below
<h3>What is expression?</h3>
An expression is a combination of numbers, variables, functions (such as addition, subtraction, multiplication or division etc.)
1) 3 is the difference of 2 times d minus 3.
As, 2*d - 3
=2*3 - 3
=6 - 3
= 3
2) 4 is 4 added to the difference of d minus 3.
or, 4 + (d - 3)
or, 4 + (3 - 3)
or, 4 + 0 = 4
3) 0 is the difference of d minus 3 divided by 2.
(d - 3)/2
= (3 - 3)/2
= 0/2
= 0
4) 2 is the quotient of 12 divided by the difference of 3 times d minus 3.
12/(3d - 3)
=12/(3*3 - 3)
=12/(9 - 3)
=12/6
= 2
Learn more about expression here:
brainly.com/question/14083225
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The probability of making a type II error is given by one minus the power of the hypothesis test.
In general for the alternative hypothesis ,
The power of a hypothesis test is given by:
The probability of <span>making a type ii error when μ = 31,000 is given by
</span>
The easiest way to make a fraction into a decimal is to divide the numerator by the deniminator. Since terminating is a decimal that ends, and doesn't repeat, the answer would have to be A. To eliminate, 5/9 is 0.555.. so it's not the answer.7/4 is 1.75, but 5/9 is 0.55... 3/8 is 0.375, but 2/3 is 0.666
