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STatiana [176]
3 years ago
8

3 - x/2 = 6 (Solve each equation) Check your answer

Mathematics
1 answer:
Yanka [14]3 years ago
6 0
Answer to question
3-x/2=6
Subtract 3 from both sides
-x/2=3
Multiply 3 by -2
Final Answer: x=-6

Work check
3-x/2=6
Substitute -6 for x since you solved for x in the last equation
3-(-6)/2
Convert 3-(-6/2) to 3+6/2
3+6/2
Divide 6 by 2
3+3
Add
Final Answer: 6 (This 6 is the same 6 we used to solve for x in the first equation).
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IA triangular parking lot is paved outside a new shopping center. The lengths of the sides of the parking lot are 100 meters, 11
Gemiola [76]

Answer:

Step-by-step explanation:

I believe the only way to solve this is by Heron's Formula.

Add up all the sides and divide by 2 to get the semi-perimeter:

113+100+86 = 299

299/2 = 149.5

Now fill in the rest, which looks like this:

\sqrt{s(s-a)(s-b)(s-c)}

where s is your semiperimeter value, a is the length of one side, b the length of another side, and c the length of the third side:

\sqrt{149.5(149.5-113)(149.5-100)(149.5-86)}

which simplifies to

\sqrt{149.5(36.5)(49.5)(63.5)}

which simplifies further to

\sqrt{17151929.44}

which, on your calculator, is 4141.49 meters squared (that's rounded to the nearest hundredth).

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2 years ago
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The result of the decrease of the number 14.4 by 0.2 of it is of 14.2.

<h3>What does it mean to decrease a number a by b of it?</h3>

The equivalent operation is the subtraction of a by b.

In this problem, we want to decrease the number 14.4 by 0.2 of it, hence the operation is:

14.4 - 0.2 = 14.2.

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2 years ago
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Answer:

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When looking at Corresponding Angles, they need to be on opposite sides of a transversal. In this case, the answer is <4 and <12

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