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e-lub [12.9K]
2 years ago
8

-7=blank-(-2) need help pleace

Mathematics
2 answers:
borishaifa [10]2 years ago
7 0

Answer:

-7 = -9 - (-2)

Step-by-step explanation:

Nuetrik [128]2 years ago
7 0

Answer:

-9

Step-by-step explanation:

-9 -(-2) = -9 + 2 = -7

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2 years ago
PLEASE HELP!
Mariana [72]
-----------------------------------------------
Information Given:
-----------------------------------------------
ON = 7x - 9
LM = 6x + 4
MN = x - 7
OL = 2y - 7

-----------------------------------------------
Since it is a parallelogram:
-----------------------------------------------
ON = LM and
MN = OL

-----------------------------------------------
ON = LM:
-----------------------------------------------
7x - 9 = 6x + 4

-----------------------------------------------
Subtract 6x from both sides:
-----------------------------------------------
x - 9 = 4

-----------------------------------------------
Add 9 to both sides:
-----------------------------------------------
x = 13

-----------------------------------------------
MN = OL:
-----------------------------------------------
x - 7 = 2y - 7

-----------------------------------------------
Sub x = 13:
-----------------------------------------------
13 - 7 = 2y - 7

-----------------------------------------------
Simplify:
-----------------------------------------------
6 = 2y - 7

-----------------------------------------------
Add 7 on both sides:
-----------------------------------------------
13 = 2y

-----------------------------------------------
Divide by 2:
-----------------------------------------------
y = 13/2

-----------------------------------------------
Answer: x = 13, y = 13/2 (Answer D)
-----------------------------------------------


6 0
3 years ago
A circle containing the point (6, 1) has its center at (3, 5). Complete the description of the changes in the circumference and
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8 0
2 years ago
Is the sqrt of 1 - sin^2 theta = cos theta true? If so, in which quadrants does angle theta terminate?
Genrish500 [490]

Answer:

Answer: The answer is option B.

Step-by-step explanation:

Here,

We have,

{ \sin }^{2}  theta \: +  {cos}^{2}theta  = 1

{cos}^{2} \: theta  = 1 -  {sin}^{2}  \: theta

cos \: theta =  \sqrt{1 -  { \sin }^{2}theta }

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3 years ago
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aleksandr82 [10.1K]

Answer:

In order of what is shown on the pic:

- Trinomial

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Step-by-step explanation:

Again, in the same order as above:

1. The first has three terms, making it a trinomial

2. 7x^2 - 7x^2 +4x

The 7x^2 cancels out and we are left with only 4x

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2 years ago
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