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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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Suppose you obtain a $1300 T note with a 9% annual rate paid monthly with Matt Trinity in six years how much interest will be pa
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Answer:

2

Step-by-step explanation:

2

7 0
3 years ago
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⦁ Find the length of the third angle of a triangle given that the first two angles are 35 and 70. Show your work.
UNO [17]
180 - 70 = 110
110 - 35 = 75
The third angle is 75
3 0
3 years ago
A triangle has sides with lengths of 8 centimeters, 15 centimeters, and 17 centimeters. Is it a right triangle?
ycow [4]

Answer:

Yes it is!

Step-by-step explanation:

If you want to know whether it is, use the pytheoream theory. a2+b2=c2

a is the shortest side, b is the second longest and c is the longest.

In this case, the equation will be:

8 sq + 15 sq = 17 sq

64 + 225 = 289

= It is a right-angled triangle!

7 0
3 years ago
4x-5=7+4y<br> How do you solve?
solong [7]
 solve for x.

4x−5=7+4y

Add 5 to both sides.

4x−5+5=4y+7+5

4x=4y+12

Divide both sides by 4.

4x/4=4y+12/4

x=y+3

-----------------------------------------------------
Have a nice day! :)

5 0
4 years ago
A student wants to estimate the mean score of all college students for a particular exam. First use the range rule of thumb to m
Wewaii [24]

Answer:

See explanation below

<u>Step-by-step explanation:</u>

range = 2200 - 300 = 1900

To find standard deviation, we have:

standard deviation = range/4 = \frac{1900}{4} = 475

The range rule of thumb estimate for the standard deviation is 475

Given:

Standard deviation,\sigma = 475

Margin of Error, ME = 100

\alpha = 1 - 0.90 = 0.10

Za/2 = Z0.05 = 1.64

Find sample size, n:

n ≥ [Z_\alpha_/_2 * (\frac{\sigma}{ME})]^2

n ≥ [1.64 * (\frac{475}{100})]^2

n ≥ 60.68

≈ 61

Minimun sample size,n = 61

5 0
3 years ago
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