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s344n2d4d5 [400]
3 years ago
8

BRAINLIEST FOR THE CORRECT AWNSER!! PLEASE PUT THE LETTER AWNSER AND EXPLAIN DO NOT LIE THANK YOU What is the goal of a proof by

contradiction? A. The contradiction of the statement is proven false, so the original statement is therefore proven true. B. The contradiction of the statement cannot be determined, so the proof is invalid. C. The truth of the statement cannot be determined, so the proof is invalid. D. The contradiction of the statement is proven true, so the original statement is therefore proven false.
Mathematics
2 answers:
alekssr [168]3 years ago
8 0

Answer:A

Step-by-step explanation: because what we seem to see is the opposite is true.

babymother [125]3 years ago
7 0

Answer:

A

Step-by-step explanation:

We assume the opposite and then get to a point where we get a false statement. That proves that the the opposite of the opposite (What we originally wanted to prove) is true.

You might be interested in
Question 9 (1 point)
Likurg_2 [28]

Answer:

A piece of Jewelry costs $4.5 and a hair accessory costs $1.5.

Step-by-step explanation:

Let the price of a piece of jewelry is $x and that of a piece of hair accessories is $y.

So, from the given conditions we can write two different equations as

5x + 8y = 34.5 ............ (1) and

2x + 16y = 33 ............... (2)

Now, solving the equations (1) and (2) we get

2x + 2(34.5 - 5x) = 33

⇒ 8x = 36

⇒ x = $4.5

Again, from the equation (2) we can write

2(4.5) + 16y = 33

⇒ 16y = 24

⇒ y = $1.5

Therefore, a piece of Jewelry costs $4.5 and a hair accessory costs $1.5. (Answer)

6 0
3 years ago
What is the distance between the points (12,-8) and (-14,20)
Harman [31]

Answer:

The approximate distance between the points is 38.2

Step-by-step explanation:

The distance between these two points is a diagonal line. In order to solve this problem, you need to plot your points and form a right triangle.  The overall distance from one point to another on the x-axis is 26 (12-(-14)), and the overall distance from one point to another on the y-axis is 28 (20-(-8)).  These two distances will form a right angle at (-14,-8).  The distances on the x and y axis are the 'legs' of the triangle and the distance between the given points in the problem represents the hypotenuse.  Using the pythagorean theorem (a^2 +b^2 = c^2), we can substitute in our values of 'a' and 'b' to get 28^2 + 26^2 = c^2, or 784 + 676= 1460, therefor the square root of 1460 is approximately 38.2.

7 0
3 years ago
Read 2 more answers
Which of the following statements could be used in the proof?
yulyashka [42]

Answer:

Option (3)

Step-by-step explanation:

To prove ΔULV ≅ ΔKLY,

                 Statements                    Reasons

1). VL ≅ LY                                1). Radii of a circle are equal

2). UL ≅ KL                              2). Radii of a circle are equal

3). ∠ULV ≅ ∠KLY                    3). Vertical angles are equal

4). ΔULV ≅ ΔKLY                    4). SAS property of congruence

Therefore, property (3) given in the options will be used to prove the triangles congruent.

5 0
3 years ago
Answer the following question with explanation
GREYUIT [131]

Answer:

a . 9.66 cm

Step-by-step explanation:

a. rule MDAS

multiple first

4(1)=4

4(√2)=5.66

(4+5.66)=9.66cm

3 0
3 years ago
What is the average of 74 and 53 ?
stepan [7]
74 + 53 = 127 divided by 2 =63.5
3 0
3 years ago
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