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Ket [755]
3 years ago
11

Evaluate x 1 - x -1 + x 0 for x = 2 a) 0 b)1/2 c)1 1/2 d)2 1/2

Mathematics
1 answer:
laiz [17]3 years ago
6 0
To solve, substitute the values of x with 2.
(2)^1 - (2) - 1 + 2^0 = 0.
The answer would be a)
You might be interested in
X-y=3 in slope intercept form and find x and y intercepts​
Dominik [7]

Answer:

x intercept is x=3

y intercept is y=-3

Step-by-step explanation:

We can write this equation in a simpler way to find the values needed. Lets do it. Take:

x-y=3

And sum y in both sides, as we know the equality will maintain:

x-y+y=3+y

x = 3+ y

Now subtract 3 in both sides:

x-3 = y+3-3

x-3=y

So, we can rewrite our equation as y=x-3

The x intercept is a value of x such that the equation in equal to zero; in other words, is the value of x when y is zero. It is also called a zero root. Graphically, its the x value when the function passes trough the x-axis. Lets find if, we nned that:

x-3 = 0

If we sum 3 in both sides:

x-3+3=3

x=3

So, x=3 is x intercept

For finding the y intercept we need the value of y when x is zero. Graphically, is the value of y obtained when the function passes trough the y-axis. So, replace x with 0:

0-3=y

y=-3

Another way to get it is knowing that the y intercept in a polynomial is always the independent term, the one that has no x or y, which in this case is -3.

7 0
2 years ago
(3n^2-5n+6) + (-8n^2-3n-2)=
Aleksandr [31]

Answer:

-5n²-8n+4

Step-by-step explanation:

Remove Parentheses :

3n²-5n+6 - 8n²-3n-2

Collect/Combine Like terms:

(3n²-8n²) + (-5n-3n) +(6-2)

Simplify:

-5n²-8n+4

7 0
3 years ago
You organize a garage sale. You have $30 at the beginning of the sale. You earn an average of $20 per hour. Write an equation th
LekaFEV [45]

30+(20x)=y

30 is the money you had from the start of the garage sale.

20 is what you are getting per hour

y equals the total money you are earning at the end of the garage sale

5 0
3 years ago
Am i correct i chose c but i might think is wrong (valid answer only!!)
hoa [83]

Answer:

You are absolutely correct!

Step-by-step explanation:

The correct answer is C!

Hope this helps you realize!

8 0
2 years ago
-3(-2x-8)-(-5x+6) what are the steps to solve this
Eddi Din [679]

First distribute the -3 and the - sign

6x + 24 + 5x - 6

Combine like terms

11x + 18


8 0
3 years ago
Read 2 more answers
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