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Mrrafil [7]
3 years ago
11

Which of these expressions is equivalent to -2 (x - 5)?

Mathematics
2 answers:
valkas [14]3 years ago
6 0

Answer:

C. -2x+10

Step-by-step explanation:

When you multiply a negative with a negative, it becomes a positive.

Readme [11.4K]3 years ago
5 0
It’s C...................
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Factor x squared minus 9?
tino4ka555 [31]

Answer:

Step-by-step explanation:

One way to solve the quadratic equation x2 = 9 is to subtract 9 from both sides to get one side equal to 0: x2 – 9 = 0. The expression on the left can be factored: (x + 3)(x – 3) = 0. Using the zero factor property, you know this means x + 3 = 0 or x – 3 = 0, so x = −3 or 3.

8 0
3 years ago
is the following statement sometimes,always or never true?negative - positive =negative defend your answer
Elanso [62]
It is always negative, because it keeps going down on the number line. Say it is negative 8 minus 5, it would be negative 13, because it adds to the negatives, so it would go deeper into the negatives.
7 0
2 years ago
What is the solution of the system of equations? 6x-2y = 4 -9x+3y = 12
katrin2010 [14]

We will have the following:

First, we solve both equations for y, that is:

6x-2y=4\Rightarrow-2y=-6x+4\Rightarrow y=3x-2

&

-9x+3y=12\Rightarrow3y=9x+12\Rightarrow y=3x+4

From this we can see that they are parallel lines, that do not share any common points, so there is no solution for the system.

3 0
10 months ago
In a lab, a substance was heated by 16°C over a period of 4 hours at a constant rate. What was the change in temperature each ho
Arada [10]

Answer:

4° C per hour

Step-by-step explanation:

16/4 will give us the temperature change every hour

5 0
3 years ago
Read 2 more answers
Which equation is the inverse of y = 100 – x2?<br> A.y= +or- sqrt 100-x A. is the correct answer
GREYUIT [131]
I hope this helps you



100-y=x^2.


x= square root of 100-y


y^-1= square root of 100-x
4 0
3 years ago
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