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Bas_tet [7]
3 years ago
11

a train is 12 feet tall. a model of the train was built with a scale of 1 inch : 3 feet. how tall is the model of the train

Mathematics
1 answer:
katrin2010 [14]3 years ago
8 0

Answer:

3 inch

Step-by-step explanation:

1 inch = 3 feet

12 feet = x

x = 12/3

x = 3

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Hoochie [10]

29.

f(x) = -x^2-7x-6

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This can be easily verified by looking at the graph (graph of a quadratic equation).

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The growth of a population is not linear, it's exponential.

31.

Exponential growth > polynomial, so y = 3^x.

35.

V(t) = 30\cdot (25)^{\frac{t}{20}}

The question is asking V(t) for t = 40.

V(40) = 30\cdot (25)^{\frac{40}{20}} \\~\\V(40) = 30\cdot 25^2 \\~\\V(40) = 30\cdot 625 \\~\\V(40) = 18750

36.

The point of symmetry of a quadratic equation y = ax^2+bx+c is at its vertice:

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3 0
2 years ago
At Andrew Jackson High School, students are only allowed to enroll in AP U.S. History if they have already taken AP World Histor
o-na [289]

Answer:

  • <u><em>About 0.22</em></u>

Explanation:

There are two sets:

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And there is a subset, which is the intersection of those two sets:

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The incoming seniors who are allowed to enroll in AP U.S. History, call them the subset S, is the set of those students that belong to W or E or both W ∩E.

By property of sets:

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Then, 178 out of 825 incoming seniors took one or both courses, and the desired probability of a randomly selected incoming senior is allowed to enroll in AP U.S. History is:

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6 0
3 years ago
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Mazyrski [523]
Plug in 3 for f(x)
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Hoped this helped!
3 0
3 years ago
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finlep [7]
If you are trying to find the percentage he received: 58/100

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You get .58 or

58% by moving the decimal to spaces to the right.
6 0
3 years ago
How do I do this plzzzz help​
LenaWriter [7]

Answer:

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Step-by-step explanation:

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3 years ago
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