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Viktor [21]
4 years ago
8

HELP FAST PLEASE!!!

Mathematics
1 answer:
Ksivusya [100]4 years ago
7 0
The answer is "14".

<span>a= 0,126 126 126 126 …    1-1000</span>

1000a = 126,126 126…..

<span>     a = 0, 126 126 ……</span>

<span>________________________</span>

1000 a – a = 126, 126 126 ………. - 0, 126 126……

999a = 126

a = 126/999 = 14/111

<span>=14</span>

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Use the formula SA=6s2 , where SA is the surface area and s is the edge length of the cube, to solve this problem. Gavan must pa
nydimaria [60]
The correct question is
<span>Use the formula SA=6s2 , where SA is the surface area and s is the edge length of the cube, to solve this problem. Gavan must paint a cube-shaped box. The edge length of the box is 2 1/2 feet. What is the surface area of the box?

we know that
[surface area]=6*s</span>²
s is the edge length of the cube

in this problem
s=2 1/2 ft------> (2*2+1)/2-----> 5/2 ft
[surface area]=6*(5/2)²----> 6*(25/4)----> 75/2 ft²-----> 37 1/2 ft²

the answer is
37 1/2 ft²



3 0
4 years ago
Given f(x)=3x^2−2x+1 <br> What is the value of f(−23)? <br> 1 <br> 7/3 <br> 3 <br> 11/3
goldenfox [79]

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7 0
4 years ago
In 1990 the population of the US was approximately 249 m. In 2014 the population was about 317 m. Determine the percent increase
Ivahew [28]

Answer:

27,3%

Step-by-step explanation:

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4 0
3 years ago
Bryan is buying notebooks and pens at an office supply store. Notebooks cost $3.59 and pens cost $1.49. He can spend up to $13 o
solong [7]

if the notebooks cost 3.59 and pens cost 1.49, with x representing the notebooks and y representing the number of pens and an amount of $13, the inequality would be written as 3.59x+1.49y13

                                          Pls mark as brainliest if this helped :)

6 0
3 years ago
Line A (y = x + 2) is transformed into Line B (y=3x+1). Which best describes the new slope and y-intercept?
Alona [7]

Answer:

<em>The slope is steeper and the line is shifted downwards. </em>

<em>The y-intercept is shifted downwards. </em>

Step-by-step explanation:

We proceed to demonstrate the transformation from the line A to line B:

1) y = x + 2 Given.

2) y = 3\cdot x + 6 Vertical dilation.

3) y = 3\cdot x +1 Vertical shift of the line in 5 units in the -y direction/Result

Hence, the answer is:

<em>The slope is steeper and the line is shifted downwards. </em>

<em>The y-intercept is shifted downwards. </em>

3 0
3 years ago
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