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solniwko [45]
3 years ago
6

Need help with my problem of the day it’s confusing I’m not good at math :| HELP

Mathematics
1 answer:
alex41 [277]3 years ago
4 0

Answer:

7:36

Step-by-step explanation:


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A paddle boat can move at a speed of 2 ​km/h in still water. The boat is paddled 16 km downstream in a river in the same time it
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<span>going downstream - 

t = 14/(2 + v) 

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14/(2 + v) = 7/(2 - v) 

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Question 7: Which of the following statements is true?
yawa3891 [41]

Problem 7)

The answer is choice B. Only graph 2 contains an Euler circuit.

-----------------

To have a Euler circuit, each vertex must have an even number of paths connecting to it. This does not happen with graph 1 since vertex A and vertex D have an odd number of vertices (3 each). The odd vertex count makes it impossible to travel back to the starting point, while making sure to only use each edge one time only.

With graph 2, each vertex has exactly two edges attached to it. So an Euler circuit is possible here.

================================================

Problem 8)

The answer is choice B) 5

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Work Shown:

abc base 2 = (a*2^2 + b*2^1 + c*2^0) base 10

101 base 2 = (1*2^2 + 0*2^1 + 1*2^0) base 10

101 base 2 = (1*4 + 0*2 + 1*1) base 10

101 base 2 = (4 + 0 + 1) base 10

101 base 2 = 5 base 10


4 0
3 years ago
What is the length of the unknown leg of the right​ triangle? And please put the answer as a decimal
irga5000 [103]

Answer:

3.87 ft = Length of unknown side of the right triangle.

Step-by-step explanation:

Given,

Hypotenuse = 4 ft

Base = 1 ft

Altitude = x

Hypotenuse² = Base² + Altitude²

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15 = x²

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Hope it helps ⚜

6 0
2 years ago
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Sketch a graph of f (x) = −1
Eduardwww [97]

Answer:

Step-by-step explanation:

f(x) = -1 is actually the same as y = -1.  Find y = -1 on the y axis and then draw a horizontal line through this point.  The resulting graph is that called for here.

8 0
3 years ago
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