Mathematics College

Amy is scuba diving. She starts at – 15.5 m relative to the ocean surface. She swims
down 4.2 m. Then she swims up halfway to the surface. What is her position
relative to the ocean surface?
(Will give Brainlist)

Answers

Answer 1

Answer:

-9.85

Step-by-step explanation:

-15.5 - 4.2 = -19.7

Negatives work like positives

19.7 / 2 = 9.85

Turn that into a negative

-9.85

Related Questions

A group of researchers was interested in the effect of music on the behavior of dogs. Specifcally, they wanted to
measure the effect of classical music on sleepiness as an indication of dogs' mental relaxation. They conducted
the following study on a group of 400 Jack Russell Terriers.
Every day for 4 months, the researchers would play Beethoven's Moonlight Sonata for 1 hour occurring
randomly between 9 a.m. and 12 p.m. During the entire 3 hours observers would record the times in which
each dog was sleeping. By the end of the 4 months, the researchers calculated and compared the percentage of
time each dog spent sleeping during each of two conditions: while the music was playing and while it wasn't
Is the study appropriate for the statistical questions it's supposed to answer?

Answers

Answer:

Step-by-step explanation:

The first part of the question would be: B) Experiment

The second part would be: C) No, because the sample the study used isn't representative of all dogs.

The independent variable is a variable that represents a quantity being manipulated in an experiment, the control group will be the group that did not hear the music, and the experimental group the group that heard the song.

What is Independent variable?

An independent variable is a variable that represents a quantity being manipulated in an experiment.

xxx is often the variable used to represent the independent variable in an equation.

Dependent variables

A dependent variable represents a quantity whose value depends on how the independent variable is manipulated.

yyy is often the variable used to represent the dependent variable in an equation.

Confounding variable

It is a variable that influences both the dependent variable and the independent variable, causing a spurious association. The confounding variable is a causal concept and as such cannot be described in terms of correlations or associations.

With this information, we can conclude that, The control group are people who have not heard the music, the experimental group are those who heard the music, and the hypothesis is that music can change people's heart rate.

Learn more about Independent variables in brainly.com/question/900187

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solution of 4x=400 lies between two consective integers

Answers

Answer:

100

Step-by-step explanation:

Given the equation 4x = 400, we are to find the value o x

4x = 400

Divide both sides by 4

4x/4 = 400/4

x = 100

Hence the value of x is 100

What is the value of the expression below when w=2

Answers

Answer:

26

Step-by-step explanation:

8 * 2 + 10 = 26

I need help but quick tho

Answers

Answer:

D.

Step-by-step explanation:

x  =  ±√36

x  =  ±6

hopes this helps :)

Answer:

D

Step-by-step explanation:

The square root of 36 is +6 and -6

Which statement is true?
O A.
A triangle can be congruent to a square.
ов.
A rectangle can be congruent to a square.
C.
All circles are congruent.
OD
None of the above is true.

Answers

B can be correct if the length and breadth of the rectangle are the same

boole summation formula used in real life

Answers

Elbert frank cox? I think

Find the number that makes the ratio equivalent to 12:1.
?:6

Answers

Right side was multiplied by 6 so you multiply the left side by 6 so 72:6

Can y'all help my little brother with his work I am too lazy to answer the questions for him HE IN THE 3RD GRADE

Answers

Answer:

1. are

2. like

3. love

4. jump

5. run

6. help

7. wears

8. spin

9. play

10. are

Step-by-step explanation:

Imao

Step-by-step explanation:

1) are

2)like

3)love

4)jump

5)run

6)help

7)wears

8)spin

9)play

10)are

Hope you guys have a nice day!♡

1 2 points What quadrant number will this order pair (-4,-5) appear in? O Quadrant 4 Quadrant 1 Quadrant 3 O Quadrant 2.​

Answers

Quadrant 3

Since both the x and y are negative, it will be in the third quadrant.

£2,300 is invested for 4 years at 5% per year simple interest work out the total interest​

Answers

Answer:

£460

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 5%/100 = 0.05 per year,

then, solving our equation

I = 2300 × 0.05 × 4 = 460

I = £ 460.00

The simple interest accumulated

on a principal of £ 2,300.00

at a rate of 5% per year

for 4 years is £ 460.00.

. The industrial output of an automobile factory increases by 5% of what it had been in the beginning of
every year. Find the production after 3 years, if the factory turns out 80000 units this year.
​

Answers

Answer = 92,610

If the factor increases output by 5% yearly than the end output will be 92,610

HELP QUICK EASY Pi WORK PLEASE HELP QUICK

Answers

Answer:

3.998  km?

not exactly sure but good luck

Step-by-step explanation:

answer the following by setting up and following as a proporition
I need it quick
at a bad wolfs concert there are fifteen males for every twenty three people. if 23,675 people attend the concert how man males attend the concert?

Answers

23,675 people * (15 males)/(23 people) ≈ 15,440 makes

What is the greatest common factor (GCF) of 24 and 42?

Answers

Answer:

6

Step-by-step explanation:

HELP ITS LIKE AN IMPOSIBLE RIDDLE OF CONFUSION AND STRESS AND MADNESS IV BEEN STUCK ON FOR 7 YEARS, I WILL GIVE BRAINLIEST...5 POINTS...A THANKYOU, AND A 5 STARS PLS HELPPPPPPPPPP
what 1 + 1 :P

Answers

Answer:

2

Step-by-step explanation:

Answer:

The answer is 2

Step-by-step explanation:

1 + 1 is 2

Edgar earns $13 for each hour of yard work. How many hours in all will it take Edgar to earn $39? hours​

Answers

3 hours because 39 divided by 13 equals 3 and to check just do 13x3 and it will get you to 39. in conclusion edgar will have to do 3 hours of hard work to get $39

please look at the picture. Find where the points will be reflected

Answers

Point C) (3,4)
Point A) (3,6)
Point B) (6,2)

what is |-2|+|4| help ill do anything!

Answers

Answer:

6

Step-by-step explanation:

The absolute value of -2 is 2 because that is it's distance from 0 on a number line.

Then do the math. 2 + 4 = 6

Answer: 6X HOPE THIS HELPS!

| − 2 | + | 4 |

|-2|+|4|

∣−2∣+∣4∣

Solve

1

Find the absolute value

| − 2  + | 4 |

2 +| 4 | 2

Find the absolute value  

Add the numbers

Solution

6

Step-by-step explanation:

find the slope of the line going through the points (3,2) and (8,27)

Answers

Answer:

5

Step-by-step explanation:

y²-y¹/x²-x¹

Where y²=27

y¹=2

x²=8

x¹=3

= 27-2/8-3

=5

A certain standardized tests math scores have a bell-shaped distribution with a mean of 530 and a standard deviation of 105. Complete part (a) through (c). (a) what percentage of standardized test scores is between 215 and 845. (b) what percentage of standardized test scores is less than 215 or greater than 845. (c) what percentage of standardized test scores is greater than 740.

Answers

It’s C because I guess to get more points to answer questions

Use the drawing tools to form the correct answer on the number line.
Graph the solution set to this inequality.
-2x+9≤5x-12

Answers

Answer:

x>3

Step-by-step explanation

-2x+9≤5x-12

Step 1: Subtract 5x from both sides.

−2x+9−5x≤5x−12−5x

−7x+9≤−12

Step 2: Subtract 9 from both sides.

−7x+9−9≤−12−9

−7x≤−21

Step 3: Divide both sides by -7.

−7x−7≤−21−7

Answer:

x≥3

The solution set to this inequality -2x+9≤5x-12 is x ≥ 3 .

What is inequality?

An inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions. It is used most often to compare two numbers on the number line by their size.

According to the question

Solution set of inequality -2x+9≤5x-12.

-2x+9 ≤ 5x-12

-2x-5x ≤ -9-12

-7x ≤ -21

x ≥ 3  (sign changes as -ve sign eliminates )

Highlighted part in graph shows points

Hence, the solution set to this inequality -2x+9≤5x-12 is x ≥ 3 .

To know more about inequality  here:

https://brainly.com/question/20383699

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A bike tire just ran over a nail, and it is losing pressure at a rate of 10% every minute. The
tire pressure is currently 1,000 kilopascals. What will it be in 9 minutes?
If necessary, round your answer to the nearest tenth.

Answers

Answer:

10

Step-by-step explanation:

10

Ming traveled to the town hall and back. The trip there took two hours and the trip back took three hours. She averaged 10 mph faster on the trip there than on the return trip. Find Ming's average speed on the outbound trip.​

Answers

Answer:30mph

Step-by-step explanation:

We know that the ratio must be 2:3. We know that 30 is 10 more than 20, which also fits into the ratio, so 30mph is the answer.

2(x+4) -6
Can someone help me

Answers

2(x+4)-6

Here,Solution

or,(2x+8)-6

or,2x+2

bader ginsbury is 5 feet and 1 inch. how tall is she in inches?

Answers

Answer: 61 inches

Step-by-step explanation:

Answer:

61 inches

Step-by-step explanation:

What is 0.7151 as a fraction?

Answers

Answer:

i think its this

Step-by-step explanation:

*look at le picture

Don’t use for points or I’ll take it back

Help

Answers

Answer:

answer is 27 degrees

Step-by-step explanation:

first of all complementary angles add up to 90 degrees and you were given one angle

63 + x = 90

63-63 +x =90 -63

x = 27

hope that helps

Can you help me put these in order please

Answers

Step-by-step explanation:

8.4 - 8.41 - 8.485 - 8.538 - 8.55 - 8.566

Answer: least to greatest

8.4, 8.41, 8.485, 8.538, 8.55, 8.566

least to greatest

Alex has a bag of marbles. 3 are blue, 5 are red, 12 are green, and 8 are purple. What is the probability of drawing 3 purple marbles in a row without replacement?

Answers

eatin a burger with no honey mustard

please help, thanks if you do (will mark brainliest)

Answers

(4,9) is the answer!!!
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