MATHEMATICS HIGH SCHOOL

I NEED HELP ASAP IT'S A UNIT TEST AND TIMED. I WILL BE SO GRATEFUL!Write a polynomial functions f(x) that contains the roots -4 and i, where i is the imaginary unit. Write your answer in standard form. Assume that the leading coefficient is 1.

Please show why. I have to "show my work." ;-;

Answers

Answer 1

Answer:

Answer:

Picture

I hope this is helpful

Step-by-step explanation:

Pls brainlest

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A colony of insects doubles every day. If the colony has 5 insects todayHow many will be present in 20 days?a.1310720
b. 2621440
c. 5242880
d. 10485760

Answers

5242880 insects would be present in 20 days.

The correct answer is an option (c)

What is the formula of exponential growth?

" $f(x)=ab^x$ ,

where a is the initial value

b is the growth rate

x is time. "

For given question,

Suppose the function for the population growth is,

$A(t)=A_0* b^t$

A colony of insects doubles every day.

⇒ b = 2

The colony has 5 insects today.

⇒ $A_0=5$

So, the exponential growth function would be,

$A(t)=5* 2^t$ ...........(1)

We need to find the number of insects after 20 days,

From equation (1),

$\Rightarrow A(20)=5* 2^(20)\n\n\Rightarrow A(20)=5* 1048576\n\n\Rightarrow A(20)=5242880$

Therefore, 5242880 insects would be present in 20 days.

The correct answer is an option (c)

Learn more about the exponential growth here,

brainly.com/question/11487261

#SPJ2

The answer is C all I did was multiply 5*2 and repeat 20 times

Ed is doing a survey of popular colors for cars for a school report. He decides to take a sample by sitting near a busy intersection and noting the colors of the cars as they go by him. Ed counts 23 black cars, 9 red cars, 17 blue cars, 25 white cars, and 21 silver cars during 20 minutes of watching. How many more white and blue cars are there than silver and red cars?

Answers

The answer is 12.

If we represent the cars in this way:
Black cars A = 23
Red cars B = 9
Blue cars C = 17
White cars D = 25
Silver cars E = 21

Then sum of white and blue cars is D + C = 25 + 17 = 42
And the sum of silver and red cars is E + B = 21 + 9 = 30

Using the subtraction:
(D+C) - (E+B) = 42 - 30 = 12

Therefore, there are 12 more white and blue cars than silver and red cars.

Answer:

Step-by-step explanation:

F(x) = 7x + 7, g(x) = 6x2

Find (fg)(x).

Answers

$f(x)=7x+7;\ g(x)=6x^2\n\n(fg)(x)=(7x+7)\cdot6x^2=42x^3+42x^2$

Insert three rational numbers between -2/3 and 3/4

Answers

Answer:

1/4, 1/2 and 1/3

Step-by-step explanation:

Rational numbers are numbers that can be expressed in the form a/b

So for ease of answering, we can just select values closer to the extremes given

so we can have 1/4, 1/2 and 1/3

These three numbers are all greater than the minimum extreme (-2/3) and less than the maximum extreme

A tutor charging 30$ per hour for 3 hours is it proportional to time or non proportional to time

I NEED HELP ASAP IT'S A UNIT TEST AND TIMED. I WILL BE SO GRATEFUL!Write a polynomial functions f(x) that contains the roots -4 and i, where i is the imaginary unit. Write your answer in standard form. Assume that the leading coefficient is 1. Please show why. I have to "show my work." ;-;

Answers

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Answers

What is the formula of exponential growth?

Answers

Answers

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I NEED HELP ASAP IT'S A UNIT TEST AND TIMED. I WILL BE SO GRATEFUL!Write a polynomial functions f(x) that contains the roots -4 and i, where i is the imaginary unit. Write your answer in standard form. Assume that the leading coefficient is 1.

Please show why. I have to "show my work." ;-;