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Svetllana [295]
3 years ago
5

Use the zeros of the following quadratic to find the x value ​

Mathematics
1 answer:
Artyom0805 [142]3 years ago
3 0

Answer:

A

Step-by-step explanation:

x^2 - 4x +3

(x - 1)(x-3)

x = 1, x = 3

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The atmospheric pressure P on a balloon or in aircraft decreases with increasing height . This pressure measured in Millimeters
Vesnalui [34]

Answer:

(A)   5.47 km

(B)   1.38 km

Step-by-step explanation:

The relationship between Pressure (mmHg) and Height (km) is given by the equation below:

p =760 e⁻ 0.145h----------------------------------------------------- (1)

(a) The height of the aircraft can be calculated by making 'h' the subject of equation (1)

In (p/760) = -0.145 h

h = -In (p/760) /0.145

h= In (760/p)/ 0.145------------------------------------------------- (2)

For the aircraft, p =344 mmHg; substituting into (2)

h = In (760/344)/0.145

   = 0.7926/0.145

   = 5.4662 km

   ≈ 5.47 km

(b) p= 622 mmHg at the mountain top. Substituting into equation  (2) we have:

h = In (760/622)/0.145

  = 0.2003 / 0.145

  =  1.3813 km

  ≈  1.38 km

4 0
3 years ago
Simplify 6.3 subtracted by 3.93
Verdich [7]

Answer:

2.37

Step-by-step explanation:

6.3 minus 3.93 is 2.37

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LUCKY_DIMON [66]

y^3 = y * y * y

y^6 = y * y * y * y * y * y

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Going against the current, a boat takes 6 hours to make a 120-mile trip. When the boat travels with the current on the return tr
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5(x+y)=6(x-y)=120

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Is 3.2 irrational or rational?
Levart [38]

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rational

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