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Tom [10]
3 years ago
10

Select the postulate of equality or inequality that is illustrated. If 5 = x + 2, then x + 2 = 5

Mathematics
2 answers:
Delicious77 [7]3 years ago
7 0

Answer:

Symmetric property of equality

Step-by-step explanation:

The symmetric property allows you to swap sides of the equation and be assured the equation is still true:

If x = y, then y = x — symmetric property.

shepuryov [24]3 years ago
5 0

Answer:

the symmetric property of equality

Step-by-step explanation:

If 5 = x + 2, then x + 2 = 5. both have an equation so it represents an equation.

Reflexive property of equality states that  a=a

Symmetric property of equality states that

If c=a+b then a+b= c

In the given statement

If 5=x+2 then x+2=5

The given statement represents the symmetric property of equality

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To compare the production techniques used by foreign and local firms in Brazil, a random sample of 80 foreign firms and a random
alina1380 [7]

Answer:

An independent sample.

Step-by-step explanation:

In this scenario, to compare the production techniques used by foreign and local firms in Brazil, a random sample of 80 foreign firms and a random sample of 80 local firms are selected. We can safely conclude that this study uses an independent sample design.

An independent sample design can be defined as a research method that usually involves the use of multiple experimental groups (two or more). The samples or participants are only in one group and as such each group has no relationship with the other. This simply means that, the samples in a particular group is having no relationship with the other samples in another group.

Ultimately this implies, each samples are independent and satisfies only one condition of the independent sample design during the experiment to compare the production technique used by foreign and local firms in Brazil.

<em>Hence, the researcher would use only two variables or conditions: a random sample of 80 foreign firms and a random sample of 80 local firms are selected.</em>

6 0
3 years ago
Please do this question
Lerok [7]
I think its 46 srry if im wrong
5 0
3 years ago
A: 6<br> b: 8.5<br> c: 7<br> d: 9.8
yarga [219]
I think d because it's the longest side
3 0
3 years ago
Read 2 more answers
What is the axis of symmetry for f(x) = 2x2 − 8x 8? x = −2 x = −3 x = 3 x = 2
Tatiana [17]

<span>The first part of the quadratic formula, x = - b/2a, is the equation of the axis of symmetry, and the x-coordinate of the vertex. </span>

<span>In standard form: - 2x² + 8x - 5 = 0, a = - 2, b = 8, c = - 5 </span>

<span>The axis of symmetry: x = - 8/2(- 2) = - 8/- 4 = 2 </span>

<span>Go back and solve for y to find the y-coordinate of the vertex. </span>

<span>y = - 2(2)² + 8(2) - 5 </span>

<span>y = - 2(4) + 16 - 5 </span>

<span>y = - 8 + 16 - 5 </span>

<span>y = 3 </span>

<span>Vertex is (2, 3)</span>
7 0
3 years ago
Read 2 more answers
Please explain/show work. P.s. it won’t let me uncheck a problem, so D isn’t necessarily the answer.
beks73 [17]

Answer:

D) \displaystyle\frac{1}{4} x^2

Step-by-step explanation:

Hi there!

The correct answer is D.

\displaystyle\frac{1}{4} x^2 is the same as \displaystyle\frac{1}{4}* x^2, which is the same as \displaystyle \frac{x^2}{4}.

I hope this helps!

6 0
3 years ago
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