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Tatiana [17]
3 years ago
6

Which of the following inequalities matches the graph? x −1 x −1 y −1 y −1

Mathematics
2 answers:
rodikova [14]3 years ago
7 0

Answer:

<h2>D.</h2>

Step-by-step explanation:

The complete question is

Which of the following inequalities matches the graph?

<em>Graph of an inequality with a solid horizontal line through the point (0, -1) and shading above the line</em>

A. x less than or greater to -1

B. x greater than or equal to -1

C. y less than or greater to -1

D. y greater than or equal to -1

The given description of the graph specifies "a solid horizontal line", when such line is solid, that means the proper inequality sign includes equality. This means that the viable answers are B and D.

Then, the description states that the horizontal line goes through (0,-1), that means the equation of the line is y=-1. And if the shading area is above the line, that means all solutions are more than -1, which implies the symbol "greater than or equal to -1".

Therefore, the right answer is D.

Minchanka [31]3 years ago
4 0
The answer to your question is 
\boxed {\bf D.~y \geq -1}

I hope this helps you!
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Answer:

a. x = -9 or x = -2

b. -5(x - 4)

c. x = -3 or x = 5

d. x = ±7

Step-by-step explanation:

a. First person;

y = x² + 11x + 18

y = x² + 9x + 2x + 18

y = x(x + 9) + 2(x + 9)

y = (x + 9)(x + 2)

y = x = -9 or x = -2

b. Second person;

y = -5x + 20

The common factor is 5.

y = -5(x - 4)

c. Third person;

y = x² - 2x - 15

y = x² - 5x + 3x - 15

y = x(x - 5) + 3(x - 5)

y = (x + 3)(x - 5)

y = x = -3 or x = 5

d. Fourth person;

y = x² - 49

Applying the difference of squares formula;

(a² - b²) = (a - b)(a + b)

y = x² - 49 = x² - 7² = (x - 7)(x + 7)

y = (x - 7)(x + 7)

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6 0
3 years ago
63n^3+54n^2-105n-90<br> Please help me factor by grouping
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Step-by-step explanation:

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2 years ago
acme lumber purchased 13.145 pine wood and 16.903 cedar wood to sell in the store. after 6 months they had sold7.589 pounds of l
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Answer:

22.459 pounds of wood

Step-by-step explanation:

Total amount of wood in store = amount of pine wood purchased + amount of cedar in the store

Total amount of wood in store = 13.145 pine wood + 16.903 cedar wood

Total amount of wood in store = 30.048 pounds of wood

If acme lumber had sold 7.589 pounds of lumber after 6 months, the amount of pounds of woods that the company have left to sell = Total amount in store initially - amount sold after 6 months

Amount of pounds of woods that the company have left to sell  = 30.048 - 7.589

The amount of pounds of woods that the company have left to sell  = 22.459 pounds of wood

4 0
3 years ago
2y=-8 which set of steps shows the solution to the equation
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2y=-8
We need to clear "y" with inverse operations.

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