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ohaa [14]
2 years ago
8

HELP due in 5 mins.. Reference books are for use in the library. There are 16 bookshelves for the reference books. After use, th

ey need to be returned to a special collection box for shelving. If 128 reference books are in use and 84 reference books are in the collection box, how many reference books are on the shelf?
Mathematics
1 answer:
netineya [11]2 years ago
8 0

Answer:

The answer is 13.25 I'm so sorry if its incorrect please let me know so I can fix it

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Passes through the points (−4, 2) and (12, 6)?
svlad2 [7]

<u>I'll assume you need to find the equation of the line that passes through those points.</u>

Answer:

\displaystyle y-2=\frac{1}{4}(x+4)

Step-by-step explanation:

<u>Equation of a Line:</u>

The equation of a line passing through points (x1,y1) and (x2,y2) can be found as follows:

\displaystyle y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)

The given points are (-4,2) and (12,6), thus:

\displaystyle y-2=\frac{6-2}{12+4}(x+4)

Operating:

\displaystyle y-2=\frac{4}{16}(x+4)

Simplifying, the equation in point-slope form is:

\mathbf{\displaystyle y-2=\frac{1}{4}(x+4)}

3 0
2 years ago
PLS HELP ME ASAP WITH NUMBER 9 THANK YOUU
s2008m [1.1K]
9a)
4x - 2 + 30  = 68
4x + 28 = 68
4x = 40
  x = 10

9b)
y = 180 -68
y= 112
4 0
3 years ago
No I need 54 inches of wood to build a picture frame. if the wood cost $2.50 a foot, how much will be pay?
tamaranim1 [39]

Answer:

135

Step-by-step explanation:

2 x 54 = 108 and .50 x 54 = 27 so 108 + 27 = 135

7 0
3 years ago
Choose the ratio below that is equivalent to the greatest fraction
Mumz [18]
Ratio 5:2 as fraction should be 5/2

as you know 5/2 = 2.5

This is the biggest compared to 9/5, 8/5 and 2/7

9/5 < 2
8/5 <2
2/7 < 1

so 5/2 is greatest 
7 0
2 years ago
Simplify completely 12 times x to the third power minus 4 times x to the 2nd power plus 8 times x all over negative 2 times x. (
jok3333 [9.3K]
So we want to simplify
\frac{12 {x}^{3}  - 4 {x }^{2} + 8x  }{ - 2x}
We split the numerators,

=  \frac{12 {x}^{?3} }{ - 2x}  -  \frac{4x {}^{2} }{ - 2x}  +  \frac{8x}{ - 2x}
=  - 6 {x}^{2}  + 2x - 4
The correct answer is B.
5 0
3 years ago
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