Please help
A population’s instantaneous growth rate is the rate at which it grows for every instant in time. Function r gives the instantaneous growth rate of a fruit fly population x days after the start of an experiment.

Answers

Answer 1

Given:

The function is

[tex]r(x)=0.05(x^2+1)(x-6)[/tex]

where, function r gives the instantaneous growth rate of a fruit fly population x days after the start of an experiment.

To find:

Number of complex and real zeros.

Time intervals for which the population increased and population deceased.

Solution:

We have,

[tex]r(x)=0.05(x^2+1)(x-6)[/tex]

[tex]r(x)=0.05(x^3+x-6x^2-6)[/tex]

Here, degree of function x is 3. It means, the given function has 3 zeros.

From the given graph it is clear that, the graph of function r(x) intersect x-axis at once.

So, the given function r(x) has only one real root and other two real roots are complex.

Therefore, function r has 2 complex zeros and one real zero.

Before x=6, the graph of r(x) is below the x-axis and after that the graph of r(x) is above the x-axis.

Negative values of r(x) represents the decrease in population and positive value of r(x) represents the increase in population.

Therefore, based on instantaneous growth rate, the population decreased between 0 and 6 hours and the population increased after 6 hours.

Answer 2

Answer:

Function r has two complex zeros and one real zero. Based on the instantaneous growth rate, the population decreased between 0 and 6 hours and the population increased after 6 hours.

Step-by-step explanation: I got it right

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3 yards 2 feet is how many inches

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3 Yards and 2 Feet are 132 inches, you know why cause I’m built different

y and z are whole numbers.
y< 70
Z<_60
Work out the largest possible value of y + z

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Answer:

Step-by-step explanation:

Find the sum.

(-3.4k-7)+(3k+21)

Please and Thank You :)

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Answer:

k=(n+3)/6

Step-by-step explanation:

algebra class but I think im wrong

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Answer:

3,1. .........................

Answer:

I believe it is (0,4) I'm not sure though

Step-by-step explanation:

This is due in a few hours I WILL MARK BRAINLIEST
Find two numbers if their ratio is 9:11 and their difference is 6.
Answer: 33,27 or __,__. Find out what __ equals.
ANSWER THIS THEN 25 POINTS WILL BE WAITING FOR YOU

Answers

Answer:

y=6+27 y=33. Its one of these.

Step-by-step explanation:

Question 7 of 10
If h(x) = (fºg)(x) and h(x) = Vx+5, find g(x) if f(x) = (x+2.
Answer here

Answers

Answer:

g(x) = x + 3

Step-by-step explanation:

A composite function is a function that is written inside another function which means substituting one function into another function.

Ex: (fоg)(x) is a composite function, where x of f(x) is substituted by g(x)

∵ h(x) = (fоg)(x)

∵ [tex]h(x)=\sqrt{x+5}[/tex]

∵ [tex]f(x)=\sqrt{x+2}[/tex]

→ Substitute x of f(x) by g(x)

∴ (fоg)(x) = [tex]\sqrt{g(x)+2}[/tex]

→ Equate (fоg)(x) by h(x)

∴ [tex]\sqrt{g(x)+2}=\sqrt{x+5}[/tex]

→ Cancel the roots from the two sides

∴ g(x) + 2 = x + 5

→ Subtract 2 from both sides

∴ g(x) + 2 - 2 = x + 5 - 2

∴ g(x) = x + 3

a line passes trough the point { 0, -3/2} and has a slope of 1/2. what is the equation of the line?
* awnsers in the picture *

Answers

Solutions: x=1.

Hope this helps!

if a sample of 25 students is taken from a population of 179 students the population variance o^2, is the variance of how many students' heights

Answers

Answer: 179

Step-by-step explanation:

The population variance cannot be determined solely from a sample, but the sample variance can provide an estimate of it based on the data collected from the sample.

The population variance ) represents the variance of the entire population. In this case, the population consists of 179 students. However, if we take a sample of 25 students from this population, the variance of this sample is called the sample variance

The sample variance ) is used to estimate the population variance ). It is calculated using the following formula:

The population variance cannot be determined solely from a sample, but the sample variance () can provide an estimate of it based on the data collected from the sample.

To know more about population here

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What is the number of the parking space covered by the car?

Answers

Answer:

Step-by-step explanation:

flip the picture upside down.

The quotient of a number and 2 increased by 8 is -15

Answers

n/6 + 2 = 4
n/6 + 2 - 2 = 4 - 2
n/6 = 2
(n/6)6 = 2(6)
n = 12

x divided by 2+8=-15 is the answer

1.
Only one-fourth of Earth’s surface is land, but land constitutes over 99% of the Earth’s actual mass. Which sphere of the Earth does this statement describe?

biosphere

lithosphere

atmosphere

hydrosphere

Answers

Answer:

Lithosphere.

Step-by-step explanation:

Lithosphere is known for being the Earth's sphere ehre all rocks and types of land are included. Therefore, if land constitutes over 99% of the Earth's actual mass, then the statement is refering to the Lithosphere.

In this question, you are asked to specify the sphere of the earth described in the sentence

The sphere of the earth described in the sentence is lithosphere.

Lithosphere is the sphere of the earth which consists of land.

Biosphere is the portion of the earth which constitutes lives. Living organisms live in this part of the earth.

Atmosphere consist of the gaseous part of the earth.

Hydrosphere is the portion of the earth that consist of water either fresh or salt water

https://brainly.com/question/10893109

is 1,569 divisible by 9

Answers

Answer:

Yes the answer is 179 remainder 3

Answer:

Step-by-step explanation:

hope this helped!

p.s it would be cool if you gave me brainliest.

Jason left home for school at 7:30 a.m. and arrived at school at 8:35 a.m. how long did

Answers

The answer for this question will be 1hours 5 mins

Jason took 1 hour and 5 mins (or 65 mins) to travel from Home to School

Help PLSSSSSSSSSSSSSSSSS extra points

Answers

Answer:

85 messages

Step-by-step explanation:

The system of equations for this is

35 + .10x

18 + .3x

where x = the number of text messages

Usually, you would use substitution or elimination to solve this problem. However, because the answer choices were given, you can just plug in the values.

When you plug in 85, or x = 85, you get 43.5 for both equations because

35 + .10(85) = 43.5 18 + .3(85) = 43.5

Therefore, the answer would be 85 messages becuase both plans will cost the same when you send 85 text messages!

Toss a thumbtack on a hard surface 50 times. How many times did it land with the point up? What is the approximate probability of landing up?

Answers

Answer:

25% because there is 4 side causing it to be 1/4 chance

Step-by-step explanation:

It is 50:50 cuz it might or it might not

Choose the comparison statement that is correct

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Answer:

what r the options........

I need the options

So what is it lol

A number is divisible by 10 if and only if it is divisible by 2

true or false? plz helppp

Answers

Answer:

false

Step-by-step explanation:

In(x - 2) – In(x + 2)

Answers

Answer:

i think it is in(x-2/2+2) the + on the bottom and the - on top as a fraction:) hope it helps

Step-by-step explanation:

Find the area under the standard normal curve that lies outside the interval between following two values. Round the answers to at least four decimal places. (a)Find the area under the standard normal curve that lies outside the interval between -1.43 and 1.34.

Answers

Answer:

A = 0,16644

Step-by-step explanation:

The area (A₁) under the bell shape curve, from the left tail up to the point ( z score) 1,34 is:

For z (score ) = 1,34 A₁ = 0,9099

The area A₂ from the left tail up to z = -1,43 is

A₂ = 0,07634

Area A₂ is inside area A₁, the area A₃ inside the points - 1,43 and 1,34 is

A₃ = A₁ - A₂

A₃ = 0,9099 - 0,07634

A₃ = 0,83356

Finally area outside the interval - 1, 43 and 1,34 is A ( the area we were looking for) is

A = 1 - A₃

A = 1 - 0,83356

A = 0,16644

These shapes below are mathematically

Answers

Answer:

x=30

Step-by-step explanation:

they are conqruent,

the proportion is 2.5 as we can find that by 20/8

2.5 times 12 is 30

Question 4

In the number shown, one digit is underlined and one digit is circled.

20,000

Which statement about the circled digit is true?

F

Its value is 10 times greater than the value of the underlined digit.

G

Its value is the underlined digit - 10.

H

Its value is 70 times the value of the underlined digit.

J

Its value is the underlined digit = 70.

Answers

Answer:

Therefore, the correct option is: Its value is 1/10 the value of the underlined digit.

Note: The question is incomplete. The complete question is given below:

2. In the number shown, one digit is underlined and one digit is circled. Which statement about the circled digit is true?

Its value is 10 times greater than the value of the underlined digit.

Its value is 1/10 the value of the underlined digit.

Its value is 70 times the value of the underlined digit.

Its value is 1/70 the value of the underlined digit.

See attachment below for the number

Step-by-step explanation:

This problem is about the place value of whole numbers.

Step 1: Determining the place value of the numbers

The place value is the value of each digit in a number, be it a whole number or a decimal number.

The number shown is seventy seven thousand (77,000)

The place value of the underlined 7 is 7 ten thousands = 7 * 10000 = 70000

The place value of the circled 7 is 7 thousands = 7 * 1000 = 7000

Step 2: Comparing the numbers

Comparing the circled number and the underlined number:

7000/70000 = 1/10

Therefore, the correct option is: Its value is 1/10 the value of the underlined digit.

PLS HELP I CANT DO THIS

Answers

Answer:

The answer would be 5

Step-by-step explanation:

2x2x2=8

Lets use the other 5 since it is already given to us.

so 8x5=40

no we must get 200 with the 40

so 200/40=5

Thus the missing number will be 5

PLEASE MARK AS BRAINLIEST

Fill in the blanks below.
Find the slope of the line passing through the points (7,-5) and (7, -1).
slope:
Find the slope of the line passing through the points (-7, 6) and (-7,-6).
slope:

Answers

Answer:

1. infinity

2. infinity

Simplify. .
-(2x – Зу) + 5х + 2 – 3х + Зу + 2
А. 4
В. 4х + 4
С. 6y + 4
D. 4х + бу + 4
Please select the best answer from the choices provided
A
B
ОООО
С
D

Answers

Answer:

6y+4

Step-by-step explanation:

-(2x-3y) +5x +2 -3x +3y +2

(-2x -3x +5x) (3y +3y) (2 +2)

0 +6y +4

6y +4

What is the sum?
5 +3 +4 =

Answers

Answer:

Step-by-step explanation:

5+4 is 9, and nine plus three is twelve

Answer:

Step-by-step explanation:

Simple meths

URRRRRGGGGEEENNNNTTTTT!!!!!!

Answers

Step-by-step explanation:

Well you have to find two points on the line like points (0,2) and (2,-2)

Then you do y2-y1/x2-x1

You should be able to know what answer it is now!

Hope this helps <3

What is the side lengths in square feet

Answers

Step-by-step explanation:

Since each side of a square is the same, it can simply be the length of one side squared. If a square has one side of 4 inches, the area would be 4 inches times 4 inches, or 16 square inches.

A television with a price of $300 is to be purchased
with an initial payment of $60 and weekly payments
of $30. Which of the following equations can be used
to find the number of weekly payments, w, required
to complete the purchase, assuming there are no
taxes or fees?

Answers

Answer:

8 weeks

Step-by-step explanation:

300-60= 240

240/30= 8

Please help
Write the equation of the line on the graph

Answers

Answer:

y = 3x

Step-by-step explanation:

There is a dot at (1,3)

The line also goes through (0,0)

The equation is of the form y = mx

b the y intercept is 0.

All we need to do is solve for m

when x = 1, y = 3

3 = m * 1

m = 3

Answer: y = 3x

Eight friends divide seven bags of apples equally between them. Enter the division represented by this situation as a fraction.

Answers

Answer:

THERE

Step-by-step explanation:

Answer:

Step-by-step explanation:

let's name the bag of apples "[tex]x[/tex]"

they have 7 bags of apples: 7[tex]x[/tex]

then they need to divide it among 8 people: so each person gets [tex]\frac{7x}{5}[/tex] or [tex]\frac{3}{5} x[/tex]

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Please help A population’s instantaneous growth rate is the rate at which it grows for every instant in time. Function r gives the instantaneous growth rate of a fruit fly population x days after the start of an experiment.

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Please help
A population’s instantaneous growth rate is the rate at which it grows for every instant in time. Function r gives the instantaneous growth rate of a fruit fly population x days after the start of an experiment.