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LiRa [457]
2 years ago
9

Please help me out with this here is a screen shot

Mathematics
1 answer:
Flura [38]2 years ago
7 0
Corresponding sides of similar triangles are in same proportion.
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Find the root of <br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B2x%20%7B%20%7D%5E%7B2%7D%20%7D%20%20%2B%20x%20%2B%20%20%5Csq
artcher [175]

Answer:

The root of    x = -2 + √2

Step-by-step explanation:

<u><em> Step(i):-</em></u>

Given \sqrt{2x^{2} } + x +\sqrt{2} = 0

      ⇒    \sqrt{2} } ( x^2 ) ^{\frac{1}{2} } + x +\sqrt{2} = 0

      ⇒   \sqrt{2}x  + x +\sqrt{2} = 0

     ⇒      (\sqrt{2}  + 1) x = - \sqrt{2}

           x = \frac{-\sqrt{2} }{(\sqrt{2}  + 1)}

<u><em>Step(ii):-</em></u>

Rationalizing

     x = \frac{-\sqrt{2} }{(\sqrt{2}  + 1)} X \frac{(\sqrt{2}  - 1)}{(\sqrt{2}  - 1)}

Apply ( a-b ) ( a+b) = a²-b²

    x = \frac{-\sqrt{2}(\sqrt{2} -1) }{(\sqrt{2})^{2}   - 1^{2} )} = \frac{-(2-\sqrt{2} }{2-1}

The root of    x = -2 + √2

6 0
3 years ago
I NEED HELP PLEASE
Elan Coil [88]

Answer:

y=x+8 because your friend's allowance is y but also $8 more than yours, x. x+8 is her allowance so x+8=y

3 0
3 years ago
Just Number 15? Please
Damm [24]
15)
an exterior angle equals the sum of the remote interior angles
<span>so
m<XYT = m<X + m<Z
4x - 25 = x + 15 + 50 - 3x
4x - 25 = -2x + 65
6x = 90
  x = 15

answer
x = 15



</span>
8 0
3 years ago
(K-10) divided by 2 = -7<br><br> What’s the answer for the variable k?
stira [4]

Answer:

k = -4

Step-by-step explanation:

(k - 10)/2 = -7

First: multiply by 2 to get rid of the denominator

2(k - 10)/2 = 2(-7)

k - 10 = -14

Next: add 10 to both sides to isolate k

k - 10 + 10 = -14 + 10

k = -4

7 0
4 years ago
the cost to rent skis at a local sporting goods store is $15 plus $20 per day. which equation models the relationship between th
Juli2301 [7.4K]

Answer:

c = 20d + 15

Step-by-step explanation:

answer choices may help if the answer is not one of the choices; but here is the answer that it should be:

20 dollars per day is 20 times the length of rental.

15 is a cost that is added and does not change.

c = the total cost therefore:

c = 20d + 15

8 0
3 years ago
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