A scuba diver returning to the surface swims to move up quickly, then waits a few meters below the surface to avoid pressure issues. They complete the ascent more slowly. The function f represents the diver's distance from sea level over time, in seconds. Which of the following is true for f? f(x)= { 3x+1, if −9 < x ≤ −2 f(x)= {−5, if. −2 < x ≤ 1 f(x)= { x−6, if 1 < x < 7 Group of answer choices The domain is the depth interval (−26, 1). The domain is the depth interval (−9, 1]. The domain is the set of times −9 < x < −2, −2 < x < 1, and 1 < x < 7. The domain is the time interval (−9, 7). Group of answer choices domain: (–3, 3] negative: (–3, –2), (2, 5] range: (–3, 4] decreasing: (–1, 4) increasing: (–3, –1) positive: (–2, 2)

Answers

Answer 1

Answer:

See below

Step-by-step explanation:

Given:

f(x)= { 3x+1, if −9 < x ≤ −2 f(x)= {−5, if. −2 < x ≤ 1 f(x)= { x−6, if 1 < x < 7

Combination of domain for the function is the following union:

(-9, 2]∪ (-2, 1]∪(1, 7)  = (-9, 7)

Group of answer choices:

The domain is the depth interval (−26, 1).

incorrect as (-26, -9) interval is not covered in given function

The domain is the depth interval (−9, 1].

incomplete range

The domain is the set of times −9 < x < −2, −2 < x < 1, and 1 < x < 7.

incorrect as doesn't include x = -2 and x = 1

The domain is the time interval (−9, 7).

This is correct as it is same with the domain set we got above.


Related Questions

7/8 + (-3/4) + (-7/-8)+ 3/4

Answers

Answer:

1.75 or  1  3/4

Step-by-step explanation:

7/8 + (-3/4) + (-7/ -8)+ 3/4

Simplify

7/8 -3/4 -7/-8 +3/4

We can get rid of -3/4 + 3/4, because together they = 0.

7/8 - 7/-8

So then we divide and subtract and get

1.75 or 1 3/4

The Math 123 book includes about 230 pages (not including the back parts of the book). If you aim to complete 65% of all the pages, how many should you finish?

Answers

Answer:

149.5 pages excluding the back parts

150.8 pages including the back parts

Step-by-step explanation:

Total pages in Math 123 book = 230 pages

You aim to complete 65% of all the pages, how many should you finish

65 % of 230 pages

= 65 / 100 × 230 pages

= 0.65 × 230 pages

= 149.5 pages excluding the bark parts of the book

If you include the back parts, that is, the beginning and ending page

You have a total of 230 pages + 2 pages

= 232 pages

65 % of 232 pages

= 65 / 100 × 232 pages

= 0.65 × 232 pages

= 150.8 pages including the back parts

Complete the graduated commission problem: You earn 20%
commission on the first $500 of sales, 25% commission on the next
$1000 of sales, and 30% commission on all sales over $1500. If you sold
$1940, what is your total commission?

Answers

Answer: I'll give you both the percentage and dollar amount. 75% = $144

Step-by-step explanation: first, I added up all the percentages to total 75%. then I took the total sales, and divided that by .75 (75% in decimal form), so:

1940 x .75 = 1455

1940 - 1455 = 144

hat is the quotient of 78.3 ÷ 3.48?

Answers

Answer:

a answer to a division problem

Step-by-step explanation:because thats have it is U-U

Answer:

The quotient is 22.5

Step-by-step explanation:

78.3/3.48 783/10/348/100 783/10/2^2*3*29/2^2*5^2 which gives you 45/2 divide that and it gives you 22.5 as your answer

Hope this helps

If x is a Poisson random variable with a mean of 10, what is the probability that x is greater than 6?

Answers

Answer:

Step-by-step explanation:

6

Determine what to add to make the trinomial a perfect square. x2+8x+___

Answers

Answer: 16

Step-by-step explanation:

For a perfect square each factor is identical.

Now, we have to find a number that adds to get 8.

The only option is (x+4)(x+4). When you distribute, you get x²+8x+16.

Now, we know that the missing number is 16.

What is 6 times 6? #ifyouknowitquestion!

Answers

Answer:

36

Step-by-step explanation:

What’s the answer confused with this ??

Answers

Answer:

x = - 1  

option I

Step-by-step explanation:

Equation is: 5x + 6 = 1

Subtract 6 from both sides

5x + 6 - 6 = 1 -6

        5x = -5

Divide both sides by 5

5x / 5 = -5/5

x = -1

True or false: Supporting evidence refers to examples that can be used to help visualize why a statement is true. (1 point) This statement is false. Supporting evidence refers to examples that can be used to help visualize why a statement is false. This statement is true. This statement is false. Supporting evidence refers to examples that prove a statement is true. This statement is false. Supporting evidence refers to examples that prove a statement is false.

Answers

Answer:

The answer is: This statement is true :)

Step-by-step explanation:

-5 1/3 divided by 2 3/4

Answers

Hey there!☺

[tex]Answer:\boxed{-1\frac{31}{33}}[/tex]

[tex]Explanation:[/tex]

[tex]-5\frac{1}{3}/2\frac{3}{4}[/tex]

Divide both fractions.

[tex]\frac{-64}{33}[/tex]

Simplify the improper fraction.

[tex]-1\frac{31}{33}[/tex]

[tex]-1\frac{31}{33}[/tex] is your final answer.

Hope this helps!

HEEEEEEEEEEEEEEEELLLLLLLLLLLLLP :(

Answers

1 2/5 for mixed number and 7/5 one fraction I think

if f(x)=2x-1 what does f(10) equal

Answers

Answer:

19

Step-by-step explanation:

Step 1:

x = 10

Step 2:

2 ( 10 ) - 1

Step 3:

20 - 1

Answer:

19

Hope This Helps :)

Which set of ordered pairs does not represent a function

Answers

Answer:

The Second one {(-8,-7), (4,-2), (2,9), (-8,8)}

Step-by-step explanation:

A function only gives ONE out put for a given value. But the second set has two outputs if we input -8, it gives you -7 and 8 so this must not be a function.

Order the fractions from least to greatest. 2/3 ,4/9,5/6,7/12

Answers

Answer:

4/9 , 7/12 , 2/3 , 5/6

Step-by-step explanation:

2/3 × 12/12 = 24/36

4/9× 4/4= 16/ 36

5/6 × 6/6 = 30/36

7/12× 3/3 = 21/ 36

dives from a platform that is 5 meters above water. dive takes her 2.5 below the surface of the water. How far does ​'s dive take ​?

Answers

Answer:

7.5 meters

Step-by-step explanation:

Stay safe!!! Stay 6 feet!!

Answer:

its 7.5

i got it right

what is a median of 11,16,29,29,29,33,52,52,52

Answers

29 is the median
If you just count all then the half number will be the 3rd 29

We say that E is an indicator functions for the event A if I = {1 if A occurs 0 if A^c occurs Find E[I]. Compare the indicator function to a Bernoulli random variable.

Answers

Answer:

Step-by-step explanation:

Bb

Tula can paint 2/3 of a room in 3/4 hours. How many rooms can she paint in one hour?

Answers

Answer:

She can paint 1 1/2 of a room

Step-by-step explanation:

I believe...

Answer:

8/9

its just simple equations

you do 2/3 divided by 3/4 for the unit rate.

Jim bought a fishing rod for $42. This price was 70% of the original price. What was the original price?

Answers

Answer:

54.6

Step-by-step explanation:

42 =  70%

100% - 70% = .30%

42 x 1.3 = 54.6

 

How do u write 200+9+07+0.01 In written form

Answers

Answer:

297.01 In

Step-by-step explanation:

1). Use the same ratio as 16 people in 25 square feet to estimate the size of a
crowd that is 10 feet deep on both sides of the street standing along a 1-mile
section of a parade route.

Answers

Answer:

33,792 people

Step-by-step explanation:

The parade route is rectangular in nature. The area of the parade route will be expressed as:

Area = Length × Breadth

If the route is 10feet deep, the length of the route = 10feet

Is the section of the route is 1 mile, the width of the parade route = 1mile × 5280ft = 5280ft

Area of the parade route = 10×5280 = 52,800ft²

If 16 people in 25 square feet is used to estimate the size of a crowd, the number of a crowd in a 52800ft² parade route is expressed as;

25ft² = 16

52800ft² = x

Cross multiply

25×x = 16×52800

25x = 844,800

x = 844,800/25

x = 33,792

Hence there are 33,792 people on 1-mile section of a parade route that is 10ft deep.

-75 - 82 plus 83 plus 54 ​

Answers

Answer:

Hey!

Your answer is -20!

Step-by-step explanation:

(-75) - 82 gives us = -157

(-157) + 83 gives us = -74

(-74) + 54 gives us = -20

I HOPE THIS HELPED!

Answer:

The person above me is correct

Step-by-step explanation:

The sample mean is an example of ____.
(A) interval estimation
(B) point estimation
(C) confidence point
(D) confidence

Answers

Answer:

B) point estimation

Step-by-step explanation:

Sample mean is an example of point estimation. It is a point estimation of the population mean.

A point estimate of a population parameter is defined as one value of a statistic. The sample mean is regarded as the best point estimate of the population mean

Looking into the sky one night, Tori wondered how far into outer space she would get if she drove a car for 3.21 × 103 hours at a rate of 70mph. She calculated and determined that a car travelling at 70 mph covers approximately 1.13 × 105 meters per hour. Tori wrote this expression to determine the distance she would travel into outer space. (3.21 × 103)(1.13 × 105) Estimate the distance travelled. Almost-equals30 × 1015 meters Almost-equals3 × 108 meters Almost-equals30 × 108 meters Almost-equals3 × 1015 meters

Answers

Answer:

B. Almost-equals3 × 108 meters

Step-by-step explanation:

I just did the assignment:)

Answer:

B

Step-by-step explanation:

Just took the asignment.

1. Which set(s) of numbers does -87 belong to?

Answers

Intergers would be the proper set.

If a class has 12 boys and 4 girls, what is the ratio of boys to girls written as a decimal? 0.33 0.75 3 4

Answers

Answer:

Pretty sure it's 3

Answer:

C 3

Step-by-step explanation:

A bag contains n cards, each having numbers (1,2,3...,n) written on it. If all numbers are used, the probability of drawing a card with a number less than or equal to 4 is 1/6. How many cards are in the bag?

Answers

Step-by-step explanation:

There are 4 cards less than or equal to 4.

1/6 = 4/n

n = 24

Which of these distributions is most likely to show data collected while studying the number of the plates people use while eating at an all you can eat buffet explain your reasoning

Answers

Answer: The second distribution.

Step-by-step explanation:

We should to expect to see a large density for the lowest number of plates (because is more common to eat 1, 2 or 3 plates than more)

For example, in the first distribution, we can see a normal distribution with a mean of 6.

This does not really make sense, because 6 plates is really a lot.

The third distribution has two peaks, one at 1 plate that has a lot of sense, and another at 10 plates, so this also does not have really a lot of sense (again, 10 plates is really a lot)

The fourth distribution seems to be even for all the number of plates, which would say that there is almost the same number of customers that eat 1 or 2 plates than the number that eats 9 or 10. This does not seem really logical, so we can assume that this is incorrect.

The second distribution is the correct one, because we see a larger density at a smaller number of plates (with a maximum at 2 plates) and the number of customers starts decreasing as the number of plates decreases (in this case, we can see that no one ordered more than 9 plates, which makes a lot of sense)

Which of the following statements is false? A. If a number is a natural number, then it is rational. B. If a number is a whole number, then it is rational. C. If a number is a fraction, then it is rational. D. If a number is an integer, then it is irrational.

Answers

Answer:d bc its integers a rational not irrational

Step-by-step explanation:

Your welcome

Answer:

d

Step-by-step explanation:

i got it right

X2 - X - 12
what's the answer for this question i am stuck

Answers

Answer:

not enough info

Step-by-step explanation:

not enough info

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