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Ivenika [448]
3 years ago
13

Please help me evaluate -x^2 + 2 for x=5

Mathematics
2 answers:
Nuetrik [128]3 years ago
8 0

Answer: Answer is 27.

Step-by-step explanation: -5 squared is 25 plus 2 is 27.

Oksanka [162]3 years ago
3 0

Answer:

27

Step-by-step explanation:

-x^2+2

Substitute the x for a 5

-5^2+2

-5^2=25

25+2=27

The answer is 27

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Write an equation (in slope-intercept form) that is parallel to 4x + 5y = 10 and has the same y-intercept as -3x - 4y = 24.
mart [117]

Answer:

y = -4/5 x - 6

Step-by-step explanation:

First turn both standard form equations to slope-intercept form.

4x + 5y = 10 -3x - 4y = 24

-4x -4x +3x +3x

<u>5y</u> = <u>-4x + </u><u>10</u> <u>-4y</u> = <u>3x + 24</u>

5 5 -4 -4

y = -4/5 x + 2. y = -3/4 x - 6

Now that you have each in slope-intercept form, we can begin the magic.

So we know that this line's y-intercept will be -6.

Not to mention since it's parallel, that means it will share the same slope as y = -4/5 x + 2, which the slope is -4/5. All together it will be

y = -4/5 x - 6. Now we can graph the line's to see if we we're right. (Look at graphs, attached above⤴⤴⤴) As you can see they are parallel.

Hope this helped :)

7 0
3 years ago
I really need help pleasee!!
Veronika [31]
The answer is -1 because using the trick rise/run from one point to the next proves it
7 0
3 years ago
What is the sum of the Linear expression 2n+6 and 6n-2
saveliy_v [14]
Hello there! ^-^ 

To solve, do the following. 

2n + 6 = 8n and 6n - 2 = 4n 

I think you can take it from here ;) 

If not just simply message me

7 0
4 years ago
 PLEASE HURRY I WILL GIVE BRAINLIEST AND 5 STAR AND HEART! THANK YOU!
Leya [2.2K]

Answer:

I believe it is 55°.

I can't remember the exact steps for this tho.

I hope it is right! good luck!

7 0
3 years ago
Using the graph below, select all statements that are true.
Harrizon [31]

Answer:

b and E and c

Step-by-step explanation:

  • A is false because some elements have the same image like 2.3 and 2.2 , 2.5 ...
  • B is true because the image of an integer remains the same using the greatest integer function. So C is true
  • E is true

6 0
3 years ago
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