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uranmaximum [27]
3 years ago
5

Please help asap i really need it.

Mathematics
1 answer:
pishuonlain [190]3 years ago
3 0
Slope is 2/1 , because the formula to find the slope is rise/ run
= 6/3
= 2/1
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86= 10x + 26, what is x?
pashok25 [27]

Answer:

60 = 10x \\ x = 6

6 0
3 years ago
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The main cable of a suspension bridge forms a parabola, described by the equation y = a(x - h)2 + k, where y is the height in fe
nirvana33 [79]
Refer to the diagram shown below.

When x = 30 ft, the cable is at 15 ft, therefore y(30) = 15.
That is,
a(30 - h)² + k = 15            (1)

Also, because the distance between the supports is 90 ft, therefore
y(0) = 6 ft, and y(90) = 6 ft
That is,
a(-h)² + k = 6                 (2)
a(90 - h)² + k = 6          (3)

From (2) and (3), obtain
a(90 - h)² = ah²
90² - 180h + h² = h²
180h = 90²
h = 45 ft.

From (1) and (2), obtain
225a + k = 15
2025a + k = 6

Therefore
1800a = -9
a = - 0.005
k = 15 - 225(-0.005) = 16.125 ft

Answer:
The equation for the cable is
y = - 0.005(x - 45)² + 16.125 

A graph of the solution verifies that the solution is correct.

6 0
3 years ago
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HELP ME PLEASE REALLY IMPORTANT OR ILL GET IN TROUBLE!! WILL MARK AS BRAINLEST IF YOU GET IT CORRECT!!
dmitriy555 [2]

Answer:

2n + 11

Step-by-step explanation:

You can combine 4n and -2n.

You get 2n + 11

8 0
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I ready diagnostic time!!
Dimas [21]

Answer:

I think choose (D)

\frac{4}{10} and  \frac{10}{25}

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Round 3.99998 to 4 decimal places (answer is not 4.0000)
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I need help on this too
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