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soldi70 [24.7K]
3 years ago
5

Perpendicular Bisectors I'm confused on what to do here

Mathematics
1 answer:
Paha777 [63]3 years ago
8 0

bi(two)...sector(section).  Bisector cuts the segment into two equal sections.  

BC = CD             <em>definition of perpendicular bisector</em>

BC + CD = BD    <em>segment addition postulate</em>

CD + CD = BD   <em>substitution</em>

2CD = BD          <em>added like terms</em>

2CD = 16           <em>substitution</em>

  CD = 8            <em>division property of equality</em>

CD = y + 3         <em>given per graph</em>

y  + 3 = 8           <em>transitive property</em>

  y = 5               <em>subtraction property</em>

Answer: 5



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-14(3a+6)=12(6-4a)+12 and steps please
Sunny_sXe [5.5K]

Answer:

In the given equation -14(3a+6)=12(6-4a)+12 the value of a is 28

Step-by-step explanation:

Given equation is -14(3a+6)=12(6-4a)+12

To simplify the given equation:

-14(3a+6)=12(6-4a)+12

Taking all terms to one side

-14(3a+6)-12(6-4a)-12=0

-[14(3a+6)+12(6-4a)+12]=0

Now dividing by negative sign on the above equation we get

14(3a+6)+12(6-4a)+12=0 (using distributive property)

42a+84+72-48a+12=0 ( adding the like terms )

-6a+168=0

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a=\frac{168}{6}

Therefore a=28

Therefore in the given equation -14(3a+6)=12(6-4a)+12 the value of a is 28

8 0
3 years ago
Simplify x^2 over x^2 - 2x
Scilla [17]

Answer:

2x^2-2x

Step by Step Explanation:

The 2   x^2 come together to form 2x^2 and since there is no other number that has x but no ^2 -2x stays the same.

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2 years ago
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sasho [114]
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application of sinus law in the triangle

sin 28 / BD = sin 126/ AD = sin 26/ 25 so we can deduce that 

AD= 25sin126 / sin26= 46.12
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<span>Calculate the height of the tower is 21.65</span>

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3 years ago
What is close to 3/4? is it 13/26, 11/32, 1/2, or 3/8​
jonny [76]

Answer:

1/2 is the closest at .5

Step-by-step explanation:

13/26 is 1/2

3/8 is . 375

11/32 is .344

3 0
3 years ago
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