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ludmilkaskok [199]
4 years ago
11

What are the solutions to the equation?

Mathematics
2 answers:
Reika [66]4 years ago
6 0

Answer:

help

Step-by-step explanation:

iragen [17]4 years ago
3 0
To factor the equation, first make sure the right hand side is equal to 0. Do this by subtracting 25 from both sides of the equation.
The equation becomes,
n^2-8n-9 = 0

Factoring the equation now gives you (n-9)(n+1) = 0.
In order to find the solutions to this equation, find values of 'n' that make the equation equal to 0. 

In this case, if n is 9 or -1, we get the answer 0.

Proof: (9-9)(n+1) => (0)(n+1) = 0
or (n-9)(-1+1) => (n-9)(0) = 0.

Hope this made sense! If it didn't, please ask questions!

You might be interested in
Write an equation of a line that passes through (-1,6) and has a slope of 4.
jeka94

Answer:

y-6=4(x+1) or y=4x+10

Step-by-step explanation:

Point: (-1,6)

m=4

Slope-point form is y-y1=m(x-x1)

y1=6

x1=-1

Now, plug it in!

y-6=4(x-(-1)) which is y-6=4(x+1)

Of course, if you want you could always simplify it down to y=4x+10 if you wanted to

Hope this helps!

7 0
3 years ago
Some one please help how do you do this?
fredd [130]

Answer:

4.3

Step-by-step explanation:

cos 42°= 3.2/x

x= 3.2 / cos 42°

7 0
3 years ago
Andrew uses the equation 25(x-4)=30 x, where x represents the number of sales, to determine the number of items he needs to sell
pshichka [43]

Hello,

Start off by distributing 25 to both x and -4

25 * X = 25x & 25 * -4 = -100

25x - 100 = 30

At this point, we add 100 to both sides so we can get 25 to be seperate from 100.

25x = 130

To get rid of the 25, divide it in both sides:

130/25 = 5.2

The answer would be 5.2

I hope this helps you with your assignment!

6 0
3 years ago
3.
Fittoniya [83]
D. Linear y= -x - 1

Explanation: y=mx+b
B=-1
M=0

6 0
3 years ago
Read 2 more answers
Assume that no variable equals 0. <br><br> (a^4)^5
Anton [14]

Answer:

the answer is a^20

Step-by-step explanation:

(a^4)^5

a^4×5

a^20

3 0
3 years ago
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