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White raven [17]
3 years ago
11

Tính chẵn lẻ của hàm số sau : y = 1/x+2

Mathematics
1 answer:
lyudmila [28]3 years ago
6 0

Step-by-step explanation:

y=1/x + 2

y=1x + 2

y=3x

This is my answer above thank you

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Kate wants to build a fence around her yard. The width of the yard is one-third the length. The perimeter of the yard is 80 feet
bezimeni [28]
The length would be 30 feet, and the width would be 10 feet.
4 0
3 years ago
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
Read 2 more answers
NEED ANSWERS ASAP PLEASE
weqwewe [10]

Answer:

72

Step-by-step explanation:

u can see its a right triangle u can see its kinda like 3-4-5 right triangle

75/5 = 15

21/3 = 7

ok so it doesn't work

now

75^2 - 21^2 = 5184

square root of 5184 = 72

3 0
3 years ago
Michael has $1.95 totally in his collection, consisting of quarters and nickels. The number of nickels is three more than the nu
madreJ [45]
6 quarters = $1.50
9 Nickels = $0.45

Total= $1.95

Answer is 6 quarters and 9 nickels.<span />
4 0
3 years ago
Read 2 more answers
Use the diagram of a T with an arrow, as shown.
mote1985 [20]

Answer:

After each rotation of the figure after giving

3 0
3 years ago
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