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denpristay [2]
2 years ago
12

When we rewrite a fraction as a decimal, are we changing the value of the fraction? hi so my teacher is asking this question on

this mini quiz thing and i have a horrible headache and dont feel like doing that right now. so pls help me out
Mathematics
2 answers:
AnnyKZ [126]2 years ago
6 0

Answer:

No, you are not changing the value.

Step-by-step explanation:

mash [69]2 years ago
4 0

Answer:

No, because then it would have different values and it wouldn't be rewriting it.

Step-by-step explanation:

Ex. 1/2. The decimal for this would be 0.5, right?

We aren't changing the value of the fraction. It is just another way of writing the value.

Hope this helped. :)

Also, I hope your headache goes away. Feel better soon. :D

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Find the vertex form of: y=2x^2-5x+13
Ket [755]
The vertex form of a quadratic function is:

 f(x) = a(x - h)² + k

The coordinate (h, k) represents a parabola's vertex.

In order to convert a quadratic function in standard form to the vertex form, we can complete the square.

y = 2x² - 5x + 13

Move the constant, 13, to the other side of the equation by subtracting it from both sides of the equation.

y - 13 = 2x² - 5x

Factor out 2 on the right side of the equation.

y - 13 = 2(x² - 2.5x)

Add (b/2)² to both sides of the equation, but remember that since we factored 2 out on the right side of the equation we have to multiply (b/2)² by 2 again on the left side.

y - 13 + 2(2.5/2)² = 2(x² - 2.5x + (2.5/2)²)

y - 13 + 3.125 = 2(x² - 2.5x + 1.5625)

Add the constants on the left and factor the expression on the right to a perfect square.

y - 9.875 = 2(x - 1.25)²

Now, we need y to be by itself again so add 9.875 back to both sides of the equation to move it back to the right side.

y = 2(x - 1.25)² + 9.875

Vertex: (1.25, 9.875)

Solution: y = 2(x - 1.25)² + 9.875

Or if you prefer fractions

y = 2(x - 5/4)² + 79/8
7 0
3 years ago
I need help with my math to day.‍♀️
ANTONII [103]

Answer:

8x + 1 + 6x + 5 = 90

14x +  6 = 90

14x = 84

x = 6

<DCB is 6x+5

6(6) + 5

36 + 5

41

8 0
3 years ago
Read 2 more answers
Find the domain and range of the relation:
Novay_Z [31]

Answer:

I am not getting what is this

6 0
2 years ago
Answer, please. I need help.
Ghella [55]

Answer:

-8x^12

Step-by-step explanation:

When you have an exponent outside of parenthesis, it is raising everything in the parenthesis to that exponent (in this case, the third). The first step to solve this is to multiply the exponents in the parenthesis by 3. This is called the power of a power rule.

-2 is being raised to the first power. 1x3 = 3, and x is being raised to the fourth power. 4x3 = 12, so you now have:

-2^3x^12

You can simplify -2^3: -2 x -2 x -2 = -8

This leaves you with -8x^12

You can check this by putting -8x^12 and (-2x^4)^3 into a graphing calculator. You know that you simplified correctly if they show the same graphs.

7 0
2 years ago
When I triple my number and add five I get 26 what is my number
lawyer [7]
Let the number be X
3x+5=26
3x= 26-5
3x=21
x=7
The number is 7

Proof if it is required on your test:
3x+5=26
3(7)+5= 26
21+5=26
26=26

(Hope this helps!)
8 0
3 years ago
Read 2 more answers
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