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olchik [2.2K]
3 years ago
6

Solve for x in the equation x2 - 12x+ 36 = 90

Mathematics
1 answer:
12345 [234]3 years ago
6 0

Answer:

6 + 3\sqrt{10\\} or 6 - 3\sqrt{10\\}

Step-by-step explanation:

x^2 - 12x + 36 = 90

x^2 - 12x - 54 = 0

x = \frac{-b +/- \sqrt{b^{2} + 4ac }}{2a}

a = 1, b= -12, c= -54

6 + 3\sqrt{10\\} or 6 - 3\sqrt{10\\}

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4 0
3 years ago
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Suzi starts her hike at 200 feet below sea level. When she reaches the end of the hike, she is still below sea level at −163 fee
Phantasy [73]

Answer:

Suzi's elevation in the hike is 37 feet.

Step-by-step explanation:

We are given the following in the question:

Position of Suzi in the starting of hike = 200 feet below sea level

= -200 feet

The negative sign shows below sea level.

Position of Suzi in the end of hike  = -163 feet

Change in elevation from the beginning of Suzi's hike to the end of the hike

= Position of Suzi in the end of hike - Position of Suzi in the starting of hike

=-163 - (-200)\\=-163 + 200\\=37\text{ feet}

Thus, Suzi's elevation in the hike is 37 feet.

6 0
4 years ago
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Liula [17]

Answer:

b + 2 = 6

Step-by-step explanation:

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3 0
3 years ago
Use the figure above to answer the questions.
DENIUS [597]

Answer:

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Step-by-step explanation:

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3 years ago
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Tatiana [17]

Answer:

g(x) = |x| + 1

Step-by-step explanation:

Given

y = |x|

Required

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Start by replacing y with f(x)

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Substitute k = 1

g(x) = f(x) + 1

Substitute  f(x) = |x|

g(x) = |x| + 1

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3 years ago
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