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Vlad1618 [11]
3 years ago
11

A Country sales tax is 6 2/3% . what is the percent as A fraction in simplest form

Mathematics
1 answer:
Anna007 [38]3 years ago
6 0
6+2/3%   <--- Given
(6+2/3)/100   <--- Definition of percent
(20/3)/100   <--- Putting the top into an improper fraction
20/300   <--- Dividing the fractions
1/15   <--- Simplifying the fraction

Hope this helps!
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If the equation y = 3x + 2 is changed to y = -3x + 2, how will the graph of the line change?
MrRissso [65]
The line will flip across the y-axis.
7 0
3 years ago
The equation of a parabola is given.y=1/8x^2+4x+20 What are the coordinates of the focus of the parabola?
Lena [83]
He equation of a parabola is x = -4(y-1)^2. What is the equation of the directrix? 
<span>You may write the equation as </span>
<span>(y-1)^2 = (1) (x+4) </span>
<span>(y-k)^2 = 4p(x-h), where (h,k) is the vertex </span>
<span>4p=1 </span>
<span>p=1/4 </span>
<span>k=1 </span>
<span>h=-4 </span>

<span>The directrix is a vertical line x= h-p </span>
<span>x = -4-1/4 </span>
<span>x=-17/4 </span>

<span>------------------------------- </span>
<span>What is the focal length of the parabola with equation y - 4 = 1/8x^2 </span>
<span>(x-0)^2 = 8(y-4) </span>
<span>The vertex is (0,4) </span>
<span>4p=8 </span>
<span>p=2 (focal length) -- distance between vertex and the focus </span>
<span>------------------------------- </span>
<span>(y-0)^2 = (4/3) (x-7) </span>
<span>vertex = (7,0) </span>
<span>4p=4/3 </span>
<span>p=1/3 </span>
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<span>(7+1/3, 0)</span>
8 0
4 years ago
Read 2 more answers
Select the correct answer. A sound wave enters a new medium where sound travels faster. How does this affect the frequency and w
Ulleksa [173]

Answer:

The correct answer is E. Neither the frequency nor the wavelength is affected. Explanation: The wave frequency does not affect the speed of that wave. An increase in frequency of a wave causes a decrease in wavelength while the wave speed remains the constant. The speed of the waves is significantly higher at higher tensions.

Step-by-step explanation:

5 0
3 years ago
Can anyone help me how to do this?
noname [10]
The sum of the internal angles in a simple pentagon is 540°.

105 + 135 + 92 + 87 = 419

540 - 419 = 121

The angle is 121
8 0
3 years ago
Which of the following statements are the same? (A) x -= x + 4 (B) x = x + 4 - x (C) x = x - (x + 4) (A) and (B) are the same (A
Nesterboy [21]

Answer: (A) and (B) are the same

Step-by-step explanation:

for (A)

x-=x+4

x=x-(x+4)

x=x-x-4

x=4

for (B)

x=x+4-x

x=4

for (C)

x=x-(x+4)

x=x-x-4

x=-4

so (A) and (B) are the same because the value of their x is +4

5 0
3 years ago
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