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DaniilM [7]
3 years ago
10

What is the rational number equivalent to 3.12121212121212121212......

Mathematics
1 answer:
Lemur [1.5K]3 years ago
8 0
3.12 (repeating) = 3 12/99 reduces to 3 4/33 or 103/33

if there is one number repeating, like 0.222...u put that one number over 9...making it 2/9.
if there is 2 numbers repeating, like 0.1313...u put the two repeating numbers over 99...making it 13/99
if there are 3 numbers repeating, like 0.123123...u put ur three repeating numbers over 999...making it 123/999
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What is the end behavior of the graph of the polynomial function f(x) = 2x3 _ 26x _ 24?
slamgirl [31]

Polynomial end behavior determines the value of the polynomial function as the value of x variable decreases in both the positive and negative direction.

For an expression with odd degree and a positive coefficient, its behavior is the same as x^3.

Thus for 2x^3 – 26x – 24;

<span>x -> - increasing   y -> - increasing</span>

<span>And as x -> + increasing  y -> + increasing</span>
8 0
3 years ago
Use the quadratic formula to determine the exact solutions to the equation.
Ilia_Sergeevich [38]

ANSWER

x = \frac{5}{4}   -  \frac{  \sqrt{ 17} }{4}

or

x = \frac{5}{4}  +  \frac{  \sqrt{ 17} }{4}

EXPLANATION

The given equation is:

2 {x}^{2} - 5x + 1= 0

Comparing this to

a {x}^{2}  + bx + c = 0

we have a=2, b=-5, c=1

The quadratic formula is given by

x =  \frac{ - b \pm \sqrt{ {b}^{2}  - 4ac} }{2a}

We substitute the values to get,

x =  \frac{ -  - 5 \pm \sqrt{ {( - 5)}^{2}  - 4(1)(2)} }{2(2)}

x =  \frac{ 5 \pm \sqrt{ 17} }{4}

x = \frac{5}{4}   -  \frac{  \sqrt{ 17} }{4}

or

x = \frac{5}{4}   +  \frac{  \sqrt{ 17} }{4}

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4 years ago
What is the value of X???
nexus9112 [7]

Answer:

5

Step-by-step explanation:

3 0
3 years ago
Tina’s age, y, is 5 years more than<br> her brother Tim’s age, x.
sergij07 [2.7K]

The answer is y=x+5.

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shtirl [24]

Answer: 245 beads are plastic

Step-by-step explanation:

You multiply 500 by 0.49 which gives 245

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