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Phoenix [80]
3 years ago
14

I need help with this proof.​

Mathematics
1 answer:
mylen [45]3 years ago
4 0

Answer:

My proof is in the explanation.  

Step-by-step explanation:

This is a two-column proof.

One column for statements and the other for the reason for that statement.

Hopefully it shows up well on your screen. Let me know if it doesn't.

Statement                                          |        Reason

1) CD is the perpendicular                   1) Given

bisector of AB

2) AD=DB                                              2) Definition of bisector

3) CD=CD                                              3) Reflexive property

4) mAngleCDA=90                               4) Definition of perpendicular

5) mAngleCDB=90                               5) Definition of perpendicular

6) mAngleCDA=mAngleCDB               6) Substitution property

7) Corresponding parts of each           7)  SAS

triangle are congruent                                (side-angle-side)

8) AC=CB                                               8) The two triangles are ............................................................................congruent so

                                                                   the corresponding parts ............................................................................are

                                                                   congruent.

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Which expression is equivalent to 2(x + 5) + 5x?<br>a)2x + 10<br>b)7x + 5<br>c)7x + 10<br>D)10x + 5​
White raven [17]

Answer:

C. 7x+10

Step-by-step explanation:

First, distribute the 2

2(x+5) +5x

2*x+2*5 +5x

2x+10+5x

Combine like terms

2x+5x+10

7x+10

So, C is the correct answer

Hope this helps! :)

8 0
3 years ago
Read 2 more answers
A cyclist rides her bike at a rate of 9 kilometers per hour. What is the rate in kilometers per minute? How many kilometers will
aliya0001 [1]

Answer: 0.15km/min and 0.3km in 2 mins

Step-by-step explanation:

Given Data:

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1. Some traveling 60 km/h is traveling one km/min

60/60= 1 km/min

Rate in km/min

= 9km/hr / 60min

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= 2 / 60

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3 0
3 years ago
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Given that MQL =180° and XQR = 180°, which equation could be used to solve problems involving the relationships
Ganezh [65]

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8 0
2 years ago
What is the discrimination of 3x^2+6x=2
Pavlova-9 [17]
60
D>0, there are 2 distinct real roots

Explanation:

3x2+6x−2=0
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The formula for discriminant is b2−4acSubstitute the given values.

b2−4ac
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8 0
3 years ago
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Answer:

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Step-by-step explanation:

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Hope it helps :)

7 0
2 years ago
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