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Mama L [17]
3 years ago
14

A triangle has sides of lengths 9, 7, and 12. Is it a right triangle? Explain.

Mathematics
1 answer:
Tresset [83]3 years ago
8 0

Answer:

No, 9^2 +7^2 \neq 12^2

Step-by-step explanation:

9^2 +7^2 = 81+ 49 =130...(1)

12^2 = 144...(2)

From equations (1) & (2) it is obvious that:

9^2 +7^2 \neq 12^2

Thus, the given is not a right triangle.

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The polynomial of degree 3, P(x), has a root of multiplicity 2 at x=4 and a root of multiplicity 1 at x=−2. The y-intercept is y
Sedbober [7]

Answer:

Step-by-step explanation:

P(x) = a(x - 2)2(x + 4), a ≠ 0

 

Use the given point (0,-10) to find a.

 

-10 = a(0 - 2)2(0 + 5) = a(4)(5) = 20a

a = -10/20 = -1/2

 

P(x) = (-1/2)(x - 2)2(x + 5)

 

You can expand this if you wish

8 0
3 years ago
What is 3+29 i really need to know
Dmitrij [34]

Answer:

32

Step-by-step explanation:

6 0
3 years ago
Help ASAP with these
Fittoniya [83]

Answer:

Therefore the correct assembling is

3.∠DAC ≅ ∠BCA    3. Alternate interior Angles are Equal as AD || BC.

Step-by-step explanation:

Given:

AD ≅ BC and AD || BC

To Prove:

ABCD is a Parallelogram

Proof:

Alternate Interior Angles Theorem :

"When two parallel lines are cut by a transversal , the resulting alternate interior angles are congruent.

Here AD || BC and the transversal is AC

  Statement               Reasons

1. AD ≅ BC  .           1. Given

2. AD || BC              2. Given

3.∠DAC ≅ ∠BCA    3. Alternate interior Angles are Equal as AD || BC.

Therefore the correct assembling is

3.∠DAC ≅ ∠BCA    3. Alternate interior Angles are Equal as AD || BC.

4 0
3 years ago
//////////no links please////////
LekaFEV [45]
The third one: No, yes, no
5 0
3 years ago
jonah weighs his puppy each week. the puppy has a mass of 10 kilograms the first time jonah weighs it. The mass of the puppy inc
schepotkina [342]

y=10+x(0.5)

This is the way of writing that equation.


7 0
3 years ago
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