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Wittaler [7]
3 years ago
13

Please Help!

Mathematics
1 answer:
Radda [10]3 years ago
8 0

9514 1404 393

Answer:

  A-  Triangle 2: {8, 15, 17}

Step-by-step explanation:

You may recognize that the triple of choice A is a Pythagorean triple, so can be the side lengths of a right triangle.

Checking the numbers can be done nicely by a graphing calculator or spreadsheet to help avoid the tedium of doing it "by hand".

The basic idea is that the triangle will be a right triangle if the sum of the squares of the shorter sides is the square of the longer side.

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Factoring Gcf -2x^2-2x+84
marin [14]

Answer:

  2

Step-by-step explanation:

The factors of the three terms are ...

  (-1)(2)(x)(x)

  (-1)(2)(x)

  (2)(2)(3)(7)

The only common factor is 2.

_____

The expression can be factored as ...

  -2(x +7)(x -6)

5 0
3 years ago
How do you factor out 4v(squared) - 16v + 7?
Salsk061 [2.6K]
It is a square trinomial:
4v^2 - 16v + 7 = 0
lets multiply and divide all by 4, the square term coefficient:
(16v^2 - 16(4)v + 28)(1/4) = 0
(4v - 14)(4v - 2)<span>(1/4) = 0
</span>factor 1/4
(4v - 14)(4v - 2)(1/2)<span>(1/2)</span> = 0
and divide each:
(2v - 7)(2v - 1) = 0
7 0
3 years ago
Evaluate tan45°
Alex17521 [72]

Answer:

Step-by-step explanation:

Good evening ,

Look at the photo below for the answer

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4 0
3 years ago
Read 2 more answers
What is the solution?
andreyandreev [35.5K]

Answer:

Answer: w=2 and 2=6

Step-by-step explanation:

If you substitute 6 and 2 in for w they both work, making c the correct answer

Step-by-step explanation:

7 0
3 years ago
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Find r(x + 1) if r(x) = x3 + x + 1
suter [353]

Substitute x + 1 as x in the equation of the function:

r(x)=x^3+x+1\\\\r(x+1)=(x+1)^3+(x+1)+1=x^3+3(x^2)(1)+3(x)(1^2)+1^3+x+1+1\\\\=x^3+3x^2+3x+x+2=x^3+3x^2+4x+2

Used

(a+b)^3=a^3+3a^3b+3ab^3+b^3

7 0
3 years ago
Read 2 more answers
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