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ad-work [718]
3 years ago
15

60 = −2(−10 − 4x) what is the answer show step by step

Mathematics
2 answers:
Papessa [141]3 years ago
8 0
That’s the answer with steps

Pavel [41]3 years ago
5 0

Answer: x = 5

Step-by-step explanation:

first, divide both sides.

30 = -(-10 - 4x)

then, remove the parenthesis.

30 = 10 + 4x

them, move the terms.

=4x = 10 - 30

finally, divide both sides.

-4x = 20

solution: x = 5

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Pythagorean triples are given by the formulas x2 - y2, 2xy, and x2 + y2. Use the formulas for the Pythagorean triples to prove w
Arte-miy333 [17]
Let k be an integer. Suppose there is a triangle with legs of length 16 and 2k+1. Then by the Pythagorean theorem, the length of the hypotenuse should be

\sqrt{16^2+(2k+1)^2}=\sqrt{4k^2+4k+257}

The formulas for Pythagorean triples say that if the legs are integers, then so must be the hypotenuse, because if x=16 and y=2k+1 are integers, then so are x^2-y^2, 2xy, and x^2+y^2.

However, 4k^2+4k+257 is not a perfect square trinomial, which means for any integer k, the length of the hypotenuse is not an integer, so such a triangle doesn't exist.
4 0
2 years ago
Determine the slope and y-intercept of the line.<br> y = -69x - 346
Tpy6a [65]

Answer:

Slope: -69

Y-intercept: -346 or (0, -346)

Step-by-step explanation:

y = mx + b

    m = slope

    b = y-intercept

y = -69x - 346

    m = -69

    b = -346

6 0
2 years ago
Can someone help me asap!!
Sphinxa [80]
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7 0
2 years ago
Which number is equal to 7 (3.5×10^4) written in scientific notation
seraphim [82]
The correct answer is:  [B]:  " 2.45 * 10⁵ " .
___________________________________________________________
<u>Note</u>:  

7 * 3.5 =   24.5 ;

24.5 * 10⁴ = 2.45 * 10⁵ .
___________________________________________________________
6 0
2 years ago
Y=-x+5 in standard form
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