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V125BC [204]
2 years ago
5

Which counterexample can be used to show that the following conjecture is false?

Mathematics
1 answer:
vitfil [10]2 years ago
7 0

1and2 are supplementary angles is conjecture is false

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16. A triangle has side lengths of 6, 8, and 10. Is it a right triangle? Explain. (2 points)
timurjin [86]

Answer:

Yes, because when the side lengths of a triangle are in the ratio 3: 4: 5, then it is a right triangle. These sides are 6: 8: 10, then the triangle is a right one.

Step-by-step explanation:

7 0
2 years ago
Express M=cos3A + cos A and N = sin3A + sin A as a product form​
elena-14-01-66 [18.8K]

Answer:

2cosAcos2A, 4sinAcos^2A

Step-by-step explanation:

cos3A+cosA

2cos((3A+A)/2)cos((3A-A)/2)

2cos(4A/2)cos(2A/2)

2cosAcos2A

sin3A+sinA

2sin((3A+A)/2)cos((3A-A)/2)

2sin(4A/2)cos(2A/2)

2sin2AcosA

4sinAcos^2A

3 0
2 years ago
Wanna be the Brainiest
masha68 [24]

Answer:

156cm^3

Step-by-step explanation:

V= 1/2 a*c*h

a=3

c=8

h=13

3*8*13=312

312/2=156

5 0
2 years ago
Yolanda drove 605 miles in 11 hours. At the same rate, how many miles would she drive in 5 hours?
aalyn [17]

Answer:

275 miles

Step-by-step explanation:

Divide 605/11 to find out the rate.

Rate is 55 miles per hour.

5 * 55 = 275 miles

6 0
1 year ago
Read 2 more answers
I have no idea how to solve this
Pavlova-9 [17]
  • <em>Answer:</em>

<em>x = 25</em>

  • <em>Step-by-step explanation:</em>

<em>Hi there ! </em>

  • <em><u> the opposite angles are equal</u></em>

<em><u>4x - 25 = 25 + 2x</u></em>

<em><u>4x - 2x = 25 + 25</u></em>

<em><u>2x = 50</u></em>

<em><u>x  = 50 : 2</u></em>

<em><u>x = 25</u></em>

<em><u>Good luck ! </u></em>

7 0
3 years ago
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