Manatees are an endangered species of herbivorous, aquatic mammals found primarily in the rivers and estuaries of Florida. As part of its conservation efforts, the Florida Fish and Wildlife Commission records the cause of death for every recovered manatee carcass in its waters. Of the 392392 recorded manatee deaths in 2012, 6868 were perinatal and 8181 were caused by collision with a watercraft. (a) What is the probability that the death of a randomly selected manatee was due to collision with a watercraft? (Enter your answer rounded to four decimal places.)

Answers

Answer 1

Answer:

Other question are " (b) What is the probability that the death was not due to collision with a watercraft? (Enter your answer rounded to four decimal places.) P(not collision) - (c) What is the probability that the cause of death was due to perinatal problems or collision with a watercraft? What is the

(c) What is the probability that the cause of death was due to perinatal problems or collision with a watercraft? What is the probability that it was due to some other cause? (Enter your answers rounded to four decimal places.) P(perinatal or collision) P(other cause) -"

a) P(collision) = Number of deaths caused by collision / Total number of deaths

P(collision) = 81/392

P(collision) = 0.2066

b) P(not collision) = 1 - P(collision)

P(not collision) = 1 - 0.2066

P(not collision) = 0.7934

c) P(perinatal or collision) = (68+81)/392

P(perinatal or collision) = 0.3801

P(other cause) = 1 - 0.3801

P(other cause) = 0.6199.


Related Questions

10xy12
Which expression is equivalent to
-5x2, 6 ? Assume
-50x8,18
-2x8,18
-2x12,72
5x8,18

Answers

Answer:

Option B.)

[tex] - {2x}^{8} {y}^{18} [/tex]

The equivalent expression of 2(x² – 1) + 3x(x – 4) is 5x² - 12x - 2

Here, we have,

We know that,

The equivalent expression of the expression can be found as follows;

2(x² – 1) + 3x(x – 4)

open the brackets

2x² - 2 + 3x² - 12x

Therefore, let's combine like terms

2x² + 3x² - 12x - 2

Let's do the arithmetic for like terms

2x² + 3x² - 12x - 2

5x² - 12x - 2

Therefore, the equivalent expression of  2(x² – 1) + 3x(x – 4) is

5x² - 12x - 2.

learn more on expression here:

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A rectangle has a length 5 meters more than five times the
width. The area of the rectangle is less than 100 meters
squared. Write an expression that represents all possible
widths (use the variable x) of the rectangle. Write your answer
as an inequality, a

Answers

Given:

A rectangle has a length 5 meters more than five times the  width.

The area of the rectangle is less than 100 meters  squared.

To find:

The expression or inequality that represents all possible  widths of the rectangle.

Solution:

Let x be the width of the rectangle.

Length of the rectangle is 5 meters more than five times the  width.

[tex]length=5x+5[/tex]

Area of rectangle is

[tex]Area=length \times width[/tex]

[tex]Area=(5x+5) \times x[/tex]

[tex]Area=5x^2+5x[/tex]

The area of the rectangle is less than 100 meters  squared.

[tex]5x^2+5x<100[/tex]

[tex]5x^2+5x-100<0[/tex]

Divide both sides by 5.

[tex]x^2+x-20<0[/tex]

[tex]x^2+5x-4x-20<0[/tex]

[tex]x(x+5)-4(x+5)<0[/tex]

[tex](x+5)(x-4)<0[/tex]

It is true if one factor is negative and other is positive. So,

[tex]x-4<0\Rightarrow x<4[/tex]     ...(i)

[tex]x+5>0\Rightarrow x>-5[/tex]       ...(ii)

Using (i) and (ii), we get

[tex]-5<x<4[/tex]

Therefore, the required expression or inequality for possible

widths of the rectangle is [tex]-5<x<4[/tex].

PLEASE HELP IT'S DUE AT 11:59 (5 pts per part)


A. The Clear-Picture Cable Company charges different rates for ordering different levels of cable service. Clear-Picture Cable Company charges $24.95 a month for basic cable services plus $6.95 a month for each additional premium channel. If Stacey's monthly bill is $45.80, how many premium channels is she receiving? Write and solve and equation to answer the question. Show all work.


B. Dan signed a contract for 12 months of basic cable service with 2 premium channels each month. Dan budgeted $400 for this year's cable expenses. EXPLAIN whether Dan budgeted enough money to cover the yearly cost for his cable contract.


(please answer with all work and a full explanation for B. THANKS SO MUCH!!)

Answers

Answer:

A. 3 premium channels

B. No, he did not

Step-by-step explanation:

1a. make an equation that shows the price Stacey has to pay each month. x is how many premium channels she's paying for.

  24.95 + 6.95x = 45.8

2a. subtract 24.95 from both sides.

  6.95x = 20.85

3a. divide both sides by 6.95.

  x = 3

1b. make an expression to show the price of Dan's contract. (keep in mind, he has to pay for 2 premium channels for 12 months, so you would have to pay for the premium channels 24 times!)

  24.95(12) + 6.95(24)

2b. multiply.

  299.4 + 166.8

3b. add.

  $466.20

Dan would have to pay $466.20, so no, he did not budget enough money.

Give the domain and range of each relation. Tell whether the relation is a function. Explain.

Answers

The domain is 3 and the range is 2
what he said. ^^^^^^

James and Rhea went out for a picnic. James ate 3/8 of a pizza. Rhea ate ¼ of the pizza. What fraction of pizza did they eat altogether?

Answers

Answer:

1/2

Step-by-step explanation:

Valeria is training for a marathon. She jogs the same 15 mile route twice in one week. On Monday, she jogged the route in 1.75 hours. Thursday, she tried to improve her speed. She jogged the same route in 1.63 hours. Her smart watch said her rate on Monday was 8.57 miles per hour. She forgot to set the smart watch to calculate her rate on Thursday. Use the information you have to calculate how fast she was running on Thursday.

Answers

Answer:

9.20 miles per hour

Step-by-step explanation:

Given data

distance of the route = 15miles

time taken on Monday= 1.75hours

speed= distance./time

speed= 15/1.75

speed= 8.57 miles per hour

her smart watch is correct

time taken on Thursday= 1.63hours

speed= distance./time

speed= 15/1.63

speed= 9.20 miles per hour

she was jogging at 9.20 miles per hour

             

write 321x64 in long muliplication

Answers

Step by step:
3 2 1
× 6 4
————————————-
+ 1 2 8 4
+ 1 9 2 6 0
————————————-
= 2 0 5 4 4

Write an equation in point-slope form of the line that passes through (2,7) and has the slope m=4

Answers

Answer: y-7=4(x-2)

Step-by-step explanation:

Point-slope form is y-y₁=m(x-x₁). Since we are given the point and slope, we can directly plug them in.

y-7=4(x-2)

Now, we know that y-7=4(x-2) is the equation.

Write 13/3
as a decimal. If necessary, use a bar to indicate which digit or group of digits repeats.

Answers

Answer:

4.333...

Step-by-step explanation:

1) Refer to the relation below to answer the following questions:
(a) What is the domain of the relation?
(b) What is the range of the relation?
{(-1,7),(0,5),(2,5),(5,6)}

Answers

a. {-1,0,2,5}

b. {7,5,5,6}

Please hurry i have 10 minutes!

Answers

Answer:

X= 5

Step-by-step explanation:

How do you find the equivalent ratios

Answers

Answer:

by multiplying or dividing

Step-by-step explanation:

Two ratios that have the same value are called equivalent ratios. To find an equivalent ratio, multiply or divide both quantities by the same number. It is the same process as finding equivalent fractions.

A 9 foot long section of Kryptonite weighs 1673 pounds. What is the weight of a 1 foot long section of a Kryptonite?

Answers

the answer is 185.9 or rounded up 186

List the sides of triangle ABC from largest to smallest if m

Answers

I can not see the triangles so therefore I can not answer your question. Next time please include a photo!

A koala bear is approximately 25 6 feet tall. Which point on the number line represents this value?

Answers

Answer:

A.

Step-by-step explanation:

2 and 5/6 = 2.833

The point closest is A.

Answer:

Step-by-step explanation:

Hello friend!!!!!!

The answer is A

2 5/6 is 17/6 as am improper fraction

17/6  can be written as 2.83.....

It lies between 2.8 and 2.9

so A is the correct answer.

Hope this helps

plz mark as brainliest!!!!!!!!!

A swuare has an area of 9 cm^2.
Whats the side length

Answers

Answer:

3

Step-by-step explanation:

Area of a square= Length*Height

9=3*3

Answer:

3

Step-by-step explanation:

consider the equation a(4-x) = -3x+b. What values of a and b make the solution of the equation x = -5?

a=
b=
choices-
9. 7. 6. 5. 1. 0. -1. -5. -6. -7. -9


y’all please help asap

Answers

Answer:

b=−ax+4a+3x

a= b−3x −x+4

Step-by-step explanation:

The values of a and b make the solution of the equation x = -5 are 1 and -6

How to determine the values of a and b?

The equation is given as:

a(4-x) = -3x+b

When x = -5, we have:

a(4+5) = -3(-5)+b

Evaluate the products

9a = 15 + b

Set a = 1

9(1) = 15 + b

Make b the subject

b = 9 - 15

b = -6

Hence, the values of a and b make the solution of the equation x = -5 are 1 and -6

Read more about equations at:

https://brainly.com/question/14323743

Which statement about the following system of inequalities is true?

There is no solution because the shading does not overlap.
There is no solution because the graphs do not intersect.
The solution contains points in four quadrants of the coordinate plane.
The solution is equal to the solution to

Answers

Answer:

the following system of inequalities is true

Step-by-step explanation:

there is no solution because the graph do not intersect

There is no solution because the graph does not intersect.

The following system of inequalities is true.

We have given that,

There is no solution because the shading does not overlap.

There is no solution because the graphs do not intersect.

The solution contains points in four quadrants of the coordinate plane.

The solution is equal to the solution to

What is inequality?

A statement of an order relationship—greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.

There is no solution because the graph does not intersect.

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2x+y=7 for y neeedd help

Answers

Answer:

y = -2x + 7

Step-by-step explanation:

Solve for y:

2x + y = 7

Add - 2x to both sides

2x + y - 2x = 7 - 2xy = 7 - 2x

or

y = -2x + 7

This afternoon, Sara noticed that the number of the page assigned for homework is divisible by both 12
and 2. What is the smallest possible page number that could have been assigned?

Answers

Answer:

12

Step-by-step explanation:

Well, 12/12=1, which I guess is the smallest number we can get, and 12 is divisible by 2 too.

What is the solution to the system of equations?
3x+10y=-47
5x-7y = 40
O (1,-5)
O (1,5)
O (-1,-5)
O (-1,5)
HELPPPP

Answers

9514 1404 393

Answer:

  (1, -5)

Step-by-step explanation:

Here, it is easy to check the offered choices. We find the first one works, so our check is short.

For (x, y) = (1, -5)

  3·1 +10·(-5) = 3 -50 = -47 . . . yes

  5·1 -7·(-5) = 5 +35 = 40 . . . yes

__

Both of the intercepts in the first equation are negative, so the line will form a triangle with the axes in the 3rd quadrant. The intercepts for the second equation are negative for y and positive for x, so the line forms a triangle with the axes in the 4th quadrant. The y-intercept for the first equation is -4.7; for the second equation, it is -40/7 = -5 5/7. This means the lines must cross in the 4th quadrant.

The only offered point in the 4th quadrant is (1, -5).

Can someone answer this????????????????????????

Answers

Answer:

x=4

Step-by-step explanation:

What is the measure of the indicated angle?
120°
?

Answers

i think the answer is 180

which answer is the right answer? will give brainliest to the best answer

Answers

Answer:

8

Step-by-step explanation:

The y is the same so you only have to calculate the difference between x.

The difference between -3 and 5 is 8.

3. At San Antonio Middle School, 3 out of 7 students said they would vote in the Student Council election. If there are 350 students at the school, what is a good prediction of how many students will vote?​

Answers

Answer:

150 students

Step-by-step explanation:

3/7 × 350 = 150

Find the value of x.

Answers

Answer:

that would be 45

Step-by-step explanation:

tristians parents bought a new house that was 2255 square fee. the price per square foot was 98 dollars. How much did they pay for the house

Answers

Answer:

$220,990

Step-by-step explanation:

Answer:

Step-by-step explanation:

220,990

put the following numbers in order from smallest to largest
548654
550654
1547521
1485554
1547656
1256441
995841​

Answers

Answer: 548654, 550654, 995841, 1256441, 1485554, 1547521, and 1547656

Hope this helps

WILL GIVE FREE BRIANLY IF U ANSWER whats 546.1 × 0.52

Answers

Answer:     283.972 is ur answer

Answer:

283.972

Step-by-step explanation:

now thats big brain

someone help please ​

Answers

Answer:

16.     =

17.     <

18.     <

Step-by-step explanation:

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