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3 years ago

Simplify the expression by combining like

Mathematics

1 answer:

viva [34]3 years ago

4 0

Answer:

Below

Step-by-step explanation:

First we combine your first set of terms,

7b^2 + 2b^2 = 9b^2

There's a subtraction hidden in there!

9b^2 - 3b^2 = 6b^2

Next we do the same thing for the second term,

3b + 7b = 10b

but there's a subtraction in the expression!

10b - b = 9b

Then we finish with our third term

6 + 5 = 11

Answer:

6b^2 + 9b + 11

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2 years ago

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2 years ago

Given that DA is a diameter of circle B, angle CBA is a right angle, and mAF=65 degrees, find mDE

yulyashka [42]

A. 29
b. 36
c. 49
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3 years ago

The population P of rabbits on a small island grows at a rate that is jointly proportional to the size of the rabbit population

user100 [1]

Answer:

Option D:

$\frac{dP}{dt} = kP(2400 - P)$

Step-by-step explanation:

Differential equation:

For the population in function of the time, is:

$\frac{dP}{dt}$

The population P of rabbits on a small island grows at a rate that is jointly proportional to the size of the rabbit population and the difference between the rabbit population and the carrying capacity of the population

Carring capacity is 2400.

This means that the differential equation is kP(size of the population multiplied by the constant) multiplied by 2400 - P(difference between the population and the carrying capacity). So

$\frac{dP}{dt} = kP(2400 - P)$

So the answer is given by option D.

8 0

2 years ago

7. Find the measure of the angle of elevation of the sun when a boy 5 feet tall cast's a shadow

Alecsey [184]

Answer:

$45\degree$