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2 years ago

A population of 30 swans halves every 10yr. Which graph represents the population growth?

Mathematics

2 answers:

Anton [14]2 years ago

8 0

Answer:

The second graph

Step-by-step explanation:

If the population halves every 10 years, the population at year 10 would be half as mush as year 0, and year 20 would have half as much as year 20, and so on, graph 2 is the only one with a decreasing slope.

lianna [129]2 years ago

3 0

Answer:

Step-by-step explanation:

I got it right on my test

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Find the value of k such that lim-->4 (x^2+x-k)/(x-4) exists

7nadin3 [17]

Answer:

k=20

Step-by-step explanation:

when x approaches 4, the denominator x-4 approaches 0

if the denominator is 0, it means that this is invalid

if the function is a number over 0 when x=4, it represents a vertical asymptote, which means no limit

so the only way possible to let there be a limit is to let the function be 0/0 when we plug in x=4

so x^2 + x - k = 0 when x = 4

4^2 + 4 - k = 0 ==> 20 - k = 0 ==> k = 20

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2 years ago

Jason baked 7 pans of brownies. He gave ¼ of the brownies to his two sisters. How many pans of brownies did he give to his siste

boyakko [2]

Step-by-step explanation:

7×1/4 = 1.75

1.75 ÷ 2 = 0.875 pans each

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2 years ago

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son4ous [18]

Answer:

y=x2

I got it solved! tell me if it helped

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2 years ago

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A: There there are two pencils boxes in a desk for their own purposes in a drawer then total number of pencils in the drawer is

Damm [24]

Answer:

Step-by-step explanation:

I got it right

8 0

2 years ago

Which graph shows the solution to the inequality -3x-7 <20?

ki77a [65]

Answer:

x > -9

Step-by-step explanation:

The solution to the inequality is obtained as follows:

-3x -7 < 20

-3x - 7 + 7 < 20 + 7

-3x < 27

-3x/(-3) > 27/(-3)

x > -9

Notice that when you divide by a negative number, the inequality sign changes.

In the picture attached, the graph of the solution s shown. Notice that -9 is not included in the solution.

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3 years ago