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pishuonlain [190]
3 years ago
13

Complete the two- column proof

Mathematics
1 answer:
Eduardwww [97]3 years ago
7 0
<span>The correct answers are a) given; b) substitution property; c) subtraction property of equality; d) division property of equality; and e) reflexive property of equality.

Explanation<span>:
The first line of your proof just restates what was given to us; therefore the reason is "given."

Between the first step and the second step, 11x was changed to 88; this is because x=8, and we substitute that in for x. That would give us 11*8=88, with the justification being substitution.

Between the second line and third line, 88 is cancelled from the left side and the -1 becomes -89; this happens because in order to cancel a positive 88, you must subtract it from both sides. This is the subtraction property of equality.

Between the third line and fourth line, -6 is cancelled from the left side and on the right side, -89 is changed to 89/6. This happens because in order to cancel the -6 that is beside the y (which means multiplication), we must divide both sides; this is the division property of equality.

The last step is to rewrite the equation with y on the left and the answer on the right; the reflexive property allows us to do that.</span></span>
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Answer:

13/99

Step-by-step explanation:

First convert the expression, turn 13 into 13/1: 13/1 × 1/99

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An exam will consist of True-False questions worth 3 points each and short essay questions worth 11 points each. Write an expres
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T3+E11

Step-by-step explanation:

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The angles in a triangle are such that one angle is 120 degrees more than the smallest angle, while the third angle is 3 times a
Westkost [7]

Answer:

a = 132; b = 12; c = 36

Step-by-step explanation:

a = b + 120

b = b

c = 3b

a + b + c = 180

(substitute these into the above equation)

b + 120   + b    + 3b  = 180

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5b = 60

/5     /5

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(substitute b back into the first equations)

a = (12) + 120 = 132

b = (12)

c = 3(12) = 36

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We will apply the power rule x^m*x^n=x^{m+n}

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We will then apply the power rule x^{-n} =  \frac{1}{x^n}

3⁻³ = \frac{1}{3^3}

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