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jarptica [38.1K]
2 years ago
13

Evaluate the expression when x= -4. 2 x + 6x+9​

Mathematics
2 answers:
LuckyWell [14K]2 years ago
8 0

Answer:

x = - 11.25 should be the answer

ExtremeBDS [4]2 years ago
6 0

Answer:

The answer is -23.

Step-by-step explanation:

substitute x with -4. multiply and add regularaly.

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Write an equation in which the quadratic expression 2x^2-2x-13 equals 0
torisob [31]

Answer:

x = 3 and -2 are the two solutions.

Step-by-step explanation:

2x^2 -2x -12 = 0

First factor out a 2

2(x^2 - x - 6) = 0

2(x - 3)(x + 2) = 0

2 = 0 x - 3 = 0 x + 2 = 0

2 does not equal zero so this is an extraneous solution

x - 3 = 0 so x = 3

x + 2 = 0 so x = -2

8 0
2 years ago
A pipe is leaking at 1.5 cups per day. About how many gallons per week is the pipe leaking?
Ira Lisetskai [31]
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7 0
3 years ago
Simplify the expression. csc^2x sec^2x/sec^2x + csc^2x
Svetlanka [38]
2csc^2x + 1 is the correct answer to simplify this expression
3 0
3 years ago
How to write (-8,-4) and (-6,-1) in slope- intercept form
Rina8888 [55]

Answer:  = (-8,-4)(-6,-1)=54

Step-by-step explanation:

4 0
2 years ago
Part 1 of 2
____ [38]

Answer:

The substance will not be in liquid state in range -273.15  

(absolute zero) to -47.42  

and the temperature above 364.76  

Explanation:

The Substance will be in solid state in at the temperature below its melting point and it will be is gaseous state at the temperature above its boiling point. So it will be liquid between melting and boiling point.

Step-by-step explanation:

8 0
2 years ago
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