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kykrilka [37]
3 years ago
11

2 4/5 - 1 3/10 + 6 7/15

Mathematics
2 answers:
Tomtit [17]3 years ago
8 0

Answer:7.967

Step-by-step explanation:

Tomtit [17]3 years ago
3 0

Answer: 7 29/30

Step-by-step explanation:

Convert ALL mixed numbers into a improper fraction:

2 4/5 = 14/5

1 3/10 = 13/10

6 7/15 = 97/15

Then add them all up

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The table of values represents the function ​​ g(x) and the graph shows the function ​f(x)​.
Tanya [424]

Answer:

B, C

Step-by-step explanation:

x-intercepts are when y=0.  f(x) has two x-intercepts at (1, 0) and (5, 0).  g(x) also has two x-intercepts; (-3, 0) and (5, 0).  So the first one is false, and the second one is true.

The maximum value of f(x) is 2.  The maximum value of g(x) is 4.  So the third one is true.

The y-intercept is the value of y when x=0.  So the y-intercept of f(x) is -1, and the y-intercept of g(x) is 3.  So the fourth one is false.

7 0
3 years ago
We will now use energy considerations to find the speed of a falling object at impact. Artiom is on the roof replacing some shin
ohaa [14]

Answer:

v = 8.49 m/s rounded off to 3 significant figures

Step-by-step explanation

Using Energy Conservation

U = Tk + Vp (Sum of kinetic Tk Energy and gravitational potential Vp Energy)

  1. At height = 3.67 m, the hammer was still or the velocity was negligible; hence, vi = 0 m/s.
  2. Ui = 0 + mgh
  3. At ground all potential energy is converted to kinetic; hence, Uf = \frac{1}{2}mv².
  4. Since total energy of the system remains constant we equate Ui to Uf.
  5. Ui = Uf
  6. mgh = \frac{1}{2}mv²
  7. After cancelling out masses and making v the subject of the formula we get:

v = \sqrt[2]{2gh} = \sqrt[2]{2*9.81*3.67} = 8.49 m/s rounded off to 3 significant figures

3 0
3 years ago
A laptop carry bag cost $30. The total cost will include an 8% sales tax. Which expression can be used in calculating the total
Tamiku [17]

Answer:

30+8%=C

Step-by-step explanation:

place the cost of the bag first then add the precent and make it equal to C wich is cost

5 0
3 years ago
In a lab, a substance was cooled by 24 C over a period of 6 hours at a constant rate. What was the change in temperature each ho
Karo-lina-s [1.5K]

Step-by-step explanation:

Decrease of 24°C in 6 hours

=> -24°C / 6 hours

=> -4°C / hour

6 0
3 years ago
Y is directly related to X, and Y is 81 when X is 27.<br><br> The constant of variation is
Lana71 [14]

Answer:

y=3x

Step-by-step explanation:

This is a function if that is what you mean?

5 0
3 years ago
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