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Xelga [282]
3 years ago
6

How many complex numbers have modulus of 5?

Mathematics
2 answers:
Veseljchak [2.6K]3 years ago
5 0

Answer:

Infinite

Step-by-step explanation:

Murrr4er [49]3 years ago
3 0

Answer:

12 complex numbers

So 12 complex numbers have modulus 5.

Step-by-step explanation:

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An arch is in the shape of a parabola. It has a span of 100 feet and a maximum height of 25 ft.
faltersainse [42]

Answer:

y=-\frac{1}{100}(x-50)^2+25

the height of the arch 10 feet from the center is 24 feet

Step-by-step explanation:

An arch is in the shape of a parabola. It has a span of 100 feet, the vertex lies at the center 50 and the maximum height of 25 ft.

Vertex at (50,25)

vertex form of the equation is

y=a(x-h)^2+k, (h,k) is the center

y=a(x-50)^2+25

the parabola starts at (0,0) that is (x,y)

0=a(0-50)^2+25

subtract 25 from both sides

-25=a(-50)^2

-25=a(2500)

divide both sides by 2500

a=-\frac{1}{100}

y=-\frac{1}{100}(x-50)^2+25

the height of the arch 10 feet from the center.

center is at 50, 10 feet from the center so x=40 and x=60

y=-\frac{1}{100}(40-50)^2+25

y=24

the height of the arch 10 feet from the center is 24 feet

4 0
3 years ago
Solving the formula P = 2L + 2W for W is NOT equivalent to which equation?
emmasim [6.3K]

Answer:

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Step-by-step explanation:

2l + 2w = P

2w = P - 2l

w = P - 2l / 2

7 0
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Which expression can be modeled using the number line?
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Answer:

c

Step-by-step explanation:

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