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VladimirAG [237]
3 years ago
5

The pair of points is on the graph of an inverse variation. Find the missing value. (1.6,6) and (8,y)

Mathematics
1 answer:
____ [38]3 years ago
5 0
<h3>Answer: y = 1.2</h3>

Work Shown:

Inverse variation equations can be written in the form x*y = k for some fixed number k. Let's plug in the first point (x,y) = (1.6, 6) to compute the value of k

x*y = k

1.6*6 = k

9.6 = k

k = 9.6

Therefore the equation updates to

x*y = 9.6

Plug in x = 8 and solve for y

x*y = 9.6

8*y = 9.6

y = 9.6/8 .... divide both sides by 8

y = 1.2

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7nadin3 [17]
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15. | m + 3 | = 7
    
      m + 3 = 7          -(m + 3) = 7
      m = 7 - 3           -m - 3 = 7
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       so m = 4 and m = -10

17. | -3d | = 15
  
      -3d = 15               -(-3d) = 15
         d = 15/-3               3d = 15
         d = - 5                    d = 15/3
                                        d = 5
     
         so d = 5 and d = -5

19. | 4b - 5 | = 19
  
      4b - 5 = 19             -(4b - 5) = 19
      4b = 19 + 5            -4b + 5 = 19
      4b = 24                   -4b = 14
        b = 24/4                  b = 14/-4
        b = 6                       b = - 7/2

         so b = 6 or b = -7/2

20. | x - 1 | + 5 = 2
      | x - 1 | = 2 - 5
      | x - 1 | = -3
There is no solution on this one because an absolute value cannot equal a negative number

21. -4 | 8 - 5n | = 13
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  There is also no solution for this one because of the same reason...absolute values cannot equal negative numbers
8 0
3 years ago
What is the final price for a pair of $39.50 jeans after 5% sales tax has been added
taurus [48]
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5 0
2 years ago
Solve: logx64 = 3 which is an equivalent equation?
zepelin [54]

By applying the definition of logarithm, you have

\log_x(64) = 3 \iff x^3 = 64

So, if you consider the cubic root of both sides, you have

x = \sqrt[3]{64} = 4

4 0
3 years ago
Read 2 more answers
PLS HELP WITH EIGHTH GRADE ALGEBRA
Katyanochek1 [597]

Answer:

i think its -13/10

Step-by-step explanation:

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Use a net to find the surface area of the open cylinder with only one base. Use 3.14 for pi.
Mandarinka [93]

Answer:

251.20 cm square

Step-by-step explanation:

As given in figure

height of cylinder = 2 cm

radius of cylinder = 8 cm

lateral surface area of cylinder is given by = \pi r l

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Therefore, lateral surface area of given cylinder

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area of base is give by \pi r^2

since there is only one base area of that base

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Thus,

Total surface area of open cylinder = 50.24 + 200.96 = 251.20 cm square

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