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3 years ago

HELP PLEASE whats the rate of change

Mathematics

1 answer:

poizon [28]3 years ago

6 0

ROC is often used when speaking about momentum, and it can generally be expressed as a ratio between a change in one variable relative to a corresponding change in another; graphically, the rate of change is represented by the slope of a line.

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Question 5 help please

rosijanka [135]

Answer:
x=4
x=5
. . . . .

3 0

3 years ago

PLEASE HELP ME!!

Ludmilka [50]

Answer:

<h2>The population will reach 1200 after about 2.8 years</h2>

Step-by-step explanation:

The question is incomplete. Here is the complete question.

The population of a certain species of bird in a region after t years can be modeled by the function P(t) = 1620/ 1+1.15e-0.42t , where t ≥ 0. When will the population reach 1,200?

According to question we are to calculate the time t that the population P(t) will reach 1200.To do this we will substitute P(t) = 1,200 into the equation and calculate for the time 't'.

Given;

$P(t) = \frac{1620}{1+1.15e^{-0.42t} } \\\\at \ P(t)= 1200;\\\\1200 = \frac{1620}{1+1.15e^{-0.42t} }\\\\cross\ multiplying\\\\1+1.15e^{-0.42t} = \frac{1620}{1200} \\\\1+1.15e^{-0.42t} = 1.35\\\\1.15e^{-0.42t} = 1.35-1\\\\e^{-0.42t} = \frac{0.35}{1.15}\\ \\e^{-0.42t} = 0.3043\\\\Taking \ ln\ of\ both\ sides\\\\lne^{-0.42t} = ln0.3043\\\\-0.42t = -1.1897\\\\t = \frac{-1.1897}{-0.42} \\\\t = 2.8 years\\\\$

The population will reach 1200 after about 2.8 years

6 0

3 years ago

Need help quick Picture provided

goldfiish [28.3K]

Answer:

I think 22.5

Step-by-step explanation:

okay so we know that lines bc and pf equal eachother

18/8 = 2.25 this is the scale factor

10 times 2.25 is. 22.5

I think it would be 22.5

8 0

2 years ago

Drag the tiles to the boxes to form correct pairs. Polygon ABCD is defined by the points A(-4, 2), B(-2, 4), C(1, 3), and D(2, 2

Ber [7]

Answer:

D'(-2, 2); C''(3, -1); A'''(4, -2); and B''(4, 2)

Step-by-step explanation:

For D', we rotate the point (2, 2) 90° counterclockwise. This maps every point (x, y)→(-y, x); it takes (2, 2)→(-2, 2).

For C'', we rotate the point (1, 3) 90° clockwise. This maps every point (x, y)→(y, -x); it takes (1, 3)→(3, -1).

For A''', we rotate the point (-4, 2) 180° clockwise. This maps every point (x, y)→(-x, -y); it takes (-4, 2)→(4, -2).

For B'', we rotate the point (-2, 4) 270° counterclockwise. This is the same as rotating the point 90° clockwise. This maps every point (x, y)→(y, -x); it takes (-2, 4)→(4, 2).

7 0

3 years ago

Read 2 more answers

How can I factor 25x + 14

eimsori [14]

You can't factor anything out of this. At least I don't think

4 0

3 years ago