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ahrayia [7]
3 years ago
9

Evaluate the expression when n=5. n^2-5n+3

Mathematics
2 answers:
Llana [10]3 years ago
7 0
The answer to this question is three
Likurg_2 [28]3 years ago
3 0
5^2 = 25

5n = 5 x 5 = 25

So 25 - 25 + 3 = 3

So the answer is 3
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End of semester test Chemistry A ... help please ​
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3 years ago
Which equation represents a line that passes through (–9, –3) and has a slope of –6?
Dahasolnce [82]
<h2>Hello!</h2>

The answer is:

The last equation,

y+3=-6(x+9)

<h2>Why?</h2>

To find which of the given equations represents a line that passes through the point (-9,-3) and has a slope of -6, we need to find an equation that can be satisfied by evaluating the given point.

We can see that the only equation that can be satisfied evaluating the point (-9,-3) is the last equation:

y+3=-6(x+9)

Evaluating the point, we have:

-3+3=-6*(-9+9)

0=-6*(0)

0=0

We can see that the equation is satisfied!

Also, we can see that evaluating the point into the other equations, they will not be satisfied.

Let's prove that:

Evaluating:

First equation:

y-9=-6(x-3)\\-3-9=-6*(-9-3)\\-12=-6*(-12)=72

The equation is not satisfied.

Second equation:

y+9=-6(x+3)\\-3+9=-6*(-9+3)\\6=-6*(-6)=36

The equation is not satisfied.

Third equation:

y-3=-6(x-9)

-3-3=-6(-9-9)

-6=-6(-18)=108

The equation is not satisfied.

Hence, the correct option is the last option, the equation that represents a line that passes through (–9, –3) and has a slope of –6 is the last equation:

y+3=-6(x+9)

Have a nice day!

Note: I have attached a picture for better understanding.

5 0
3 years ago
Read 2 more answers
Hey, here are all the problems. Im not sure how to do this and my teacher isnt giving me much time. Help would be apricated
Anton [14]

Answer:

Step-by-step explanation:

9x+8x+5+11=  17x+16

-5x-2x-7+6=   -7x-1

-x-5x-9-4=   -6x-13

3x-x-4+7=    2x+3

7x-5x+4-5=  2x-1

2x+7x-3+11=  9x+8

-4x+6x-5-8=  2x-13

12x-2x-14-3=  10x-17

5x-5x+4-12=  -8

Hope this helps (brainliest is appriciated)

5 0
3 years ago
2 Increase $45 by 10% =
QveST [7]

Answer:

i think 2.7

Step-by-step explanation:

if not have a great life

5 0
3 years ago
Read 2 more answers
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