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GaryK [48]
3 years ago
11

Out of a population of 1,500 students, 100 were asked by a random sampling to choose their favorite national park. Their respons

es are shown in the table below.
Using proportional reasoning, about how many students out of the 1,500 would you expect to pick Yosemite for their favorite national park?


____________ students

Mathematics
2 answers:
Lelechka [254]3 years ago
6 0

Answer:

210

Step-by-step explanation:

I just took the test got it right

fredd [130]3 years ago
5 0
Proportional reasoning involves comparing two values using a known proportion.

Here in a sample of 100 students, 14 students chose Yosemite as their favourite national park. This gives a proportion of 14 / 100 = 0.14 or 14%.

Using proportional reasoning, we will expect 14% of the population of 1,500 students to choose Yosemite as their favourite park.

Therefore, the number of<span> students out of the 1,500 that we would expect to pick Yosemite for their favorite national park</span>  is 14% 0f 1,500 = 0.14 x 1,500 = 210 students.
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2 years ago
-4x + y = -9<br> -<br> 5x + 2y = 3<br> :<br> Solve the Linear equation
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2 years ago
What is the common denominator of (5/x^2-4) - (2/x+2) in the complex fraction (2/x-2) - (3/x^2-4)/(5/x^2-4) - (2/x+2)
PIT_PIT [208]

9514 1404 393

Answer:

  • common denominator: (x² -4)
  • simplified complex fraction: (2x +1)/(9 -2x)

Step-by-step explanation:

It is helpful to remember the factoring of the difference of squares:

  a² -b² = (a -b)(a +b)

__

Your denominator of (x² -4) factors as (x -2)(x +2). You will note that one of these factors is the same as the denominator in the other fraction.

It looks like you want to simplify ...

  \dfrac{\left(\dfrac{2}{x-2}-\dfrac{3}{x^2-4}\right)}{\left(\dfrac{5}{x^2-4}-\dfrac{2}{x+2}\right)}=\dfrac{\left(\dfrac{2(x+2)}{(x-2)(x+2)}-\dfrac{3}{(x-2)(x+2)}\right)}{\left(\dfrac{5}{(x-2)(x+2)}-\dfrac{2(x-2)}{(x-2)(x+2)}\right)}\\\\=\dfrac{2(x+2)-3}{5-2(x-2)}=\boxed{\dfrac{2x+1}{9-2x}}

3 0
3 years ago
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uranmaximum [27]
What is the question?
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3 years ago
Find an equation of the tangent line to the graph of
lakkis [162]

Answer:

y + 4 = -3 (x - 5)

In other words,

y = -3 x + 11

Step-by-step explanation:

The slope of the tangent line to y = g(x) at x = 5 is the same as the value of g'(x). g'(5) = 3. Therefore, 3 will be the slope of the tangent line.

The tangent line goes through the point of tangency (5, g(5)). g(5) = -4. Therefore, the tangent line passes through the point (5, -4).

Apply the slope-point form of the line. The equation for a line with slope <em>m</em> that goes through point (a, b) will be y - b = m(x - a). For the tangent line in this question,

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What will be the equation of this line?

6 0
3 years ago
Read 2 more answers
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