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brilliants [131]
3 years ago
8

I Need With This One :(

Mathematics
2 answers:
Irina-Kira [14]3 years ago
6 0
The solution is where the two lines intersect
They intersect at x = -5, y = 2

Solution: (-5, 2)
12345 [234]3 years ago
4 0

Answer:

(-5, 2)

Step-by-step explanation:

The answer is where the two lines intersect

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They dont, i'd eat it all... 

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Which number is greater 11/15 or 74%
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Answer:

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Step-by-step explanation:

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7 0
3 years ago
The angle of elevation to the sun is 24°. What is the length of the shadow cast by a person 1.82 m tall? A. 0.81 m B. 1.99 m C.
Zanzabum

Answer:

C. 4.09 m

Step-by-step explanation:

Let the length of the shadow cast by a person be x m.

\tan \: 24 \degree =  \frac{height \: of \: person}{length \: of \: the \: shadow}  \\  \\ 0.4452286853 =  \frac{1.82}{x}  \\  \\ x =  \frac{1.82}{0.4452286853}  \\  \\ x = 4.08778693 \: m \\ x = 4.09 \: m

7 0
3 years ago
What are the solutions of the equation 9x4 – 2x2 – 7 = 0? Use u substitution to solve.x = + √7/9 and x = ±1 x = + √7/9 and x = ±
snow_tiger [21]

Answer:

Step-by-step explanation:

9x⁴ – 2x² – 7 = 0

Let's say that u = x²:

9u² – 2u – 7 = 0

Factor:

(u – 1) (9u + 7) = 0

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Since u = x²:

x² = 1, -7/9

x = ±1, ±i √(7/9)

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3 years ago
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