Tomas works as an underwater photographer. He starts at a position that is 19 feet below sea level. He rises 9 feet, then descends 16 feet to take a photo of a coral reef. Enter an expression to find his position relative to sea level when he took the photo and then evaluate the expression.

Answers

Answer 1
19=9-16 would probably be something to go off of and begin your thought process with.
Answer 2
Answer:

Expression:

X = Xo + 9 feet  - 16 feet
X = - 19 feet + 9 feet - 16 feet
X = - 26 feet (26 feet below the sea level)

Explanation:

1) Call Xo the initial position, and X the variable to indicate the actual position

2) Use position 0 for sea level

3) use negative sign for positions under the sea level

4) use positive sign for positions above the sea level

5) Expression:

Final position = initial position + movements upward - movements downward

X = Xo + 9 feet - 16 feet

X = - 19 + 9 feet - 16 feet = - 26 feet

Related Questions

A rectangle has a perimeter of 24 feet‚ the width of the rectangle is 3ft. what is the length

Answers

Because a perimeter is 2l + 2w, the formula is this:
2l + 6 = 24
2l = 18
l = 9
So the length is 9

Evaluate the expression when a=−15 and b=−5.

      b2
------------ =
    a + 5


Help

Answers

Final answer:

The value of the given mathematical expression b^2 divided by a+5 when a=-15 and b=-5 is -2.5.

Explanation:

In the given expression, we're asked to evaluate b2 divided by (a + 5), where a = -15 and b = -5. First we substitute the values of a and b into the expression.

So, b2 becomes (-5)2 = 25 and a + 5 becomes -15 + 5 = -10.

Now, substituting these results back into the original expression, we get 25 divided by -10, which equals -2.5.

Therefore, the value of the given expression when a=-15 and b=-5, is -2.5.

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What is the measure of ∠DEG?
A) 133°
B) 103°
C) 77°
D) 67°

Answers

Hmmmmmm
Let me think for a second

Hello!

To do this you have to find one of the missing angles.

Three angles of a triangle equal 180 so

180-47-30=103

A stright line has a degree of 180

180-103 = 77 which is the answer

URGENT! ANSWER IN THE NEXT 5 MIN PLZ! BEING TIMED!!!

A trophy consists of 3 right rectangular prisms. The prisms are turned lengthwise and stacked so that the bottom face of each of the top two prisms is completely resting on the prisms below it. The lengths of the prisms from the base of the trophy to its top are 5 in 3 in and 1 in. The width of each prism are 2 in by 2 in. What is the surface area of the trophy


Surface area is _____ in2

Answers

i belive its 48
//////////////////////////////////////////

Answer:

ITS 80!!!!

Step-by-step explanation:

What is the Median Q1 ,Q3 and IQR of 80,90,95,85,70

Answers

median=85 since it is the middle data point
Q1= 80 because it is the middle of the left side of the median
Q3=90 since it is the middle of the right side of the median
IQR= Q3-Q1=90-80=10

Answer:

17.5

Step-by-step explanation:

70, 80, 85, 90, 95

Median: 85

Lower quartile: 75

Upper quartile: 92.5

Interquartile range: 92.5 - 75 = 17.5

Noah bought 1/2 pound of candy to share with his friends.They ate 3/8 pound of the candy.How much candy does Noah have left?

Answers

you need common denominators so change 1/2 to 4/8
then 4/8-3/8=
1/8 of a pound left 

Total pound of candy with Noah = [tex] \frac{1}{2} [/tex]

Total pound of candy eaten by his friends = [tex] \frac{3}{8} [/tex] of [tex] \frac{1}{2} [/tex]

= [tex] \frac{3}{8} \times \frac{1}{2} [/tex]

= [tex] \frac{3}{16} [/tex]

Pound of candy left with Noah = [tex] \frac{1}{2} - \frac{3}{16} [/tex]

= [tex] \frac{8-3}{16} [/tex]

= [tex] \frac{5}{16} [/tex] pound

Therefore, [tex] \frac{5}{16} [/tex] pound of candy is left with Noah.

Solve – 4y – 3 + 3y = 8 – 2y – 15 interpret the results

Answers

-y-3=-2y-7
y-3=-7
y=-4
Y=-4
This is the answer to the equation

Is it necessary to use the formulas for special products of binomials to multiply these binomials?

Answers

Final answer:

While it's not necessary to use the binomial theorem to multiply binomials, it can greatly simplify the process. This theorem is handy for higher powers and in cases where technology tools are not available.

Explanation:

The formulas for special products, like the binomial theorem, are not always necessary for multiplying binomials, but they can simplify the process significantly, especially for higher powers. When multiplying binomials without these formulas, one would have to apply the distributive property multiple times, which can be tedious and prone to error. The binomial theorem provides a direct way to expand binomials raised to a power in a series expansion: (a + b)n = an + n*an-1*b + ... + bn. Utilizing this formula can speed up calculations and help avoid mistakes.

In understanding series expansions, working with exponents, and creating formulas based on logical sense and unit consistency, students can sometimes simplify problems without needing to memorize formulas. However, for complex problems or when working with large exponents, knowing and applying the binomial theorem can be much more efficient.

Moreover, technologies like calculators and computer software often have functions that apply these theorems or carry out the multiplications of binomials, which can make manual calculations unnecessary, provided you have access to these tools. But understanding the underlying principles is important for a strong mathematical foundation.

If 14 over 3 equals x over y to the second power than 14 over x equals

Answers

we have that
(14/3)=(x/y²)-----------> 14*y²=3*x

then
(14/x)=(3/y²)

the answer is
3/y²

(4x)^-2 (4x)^3(4x)^9= (4x)

Answers

The base is 4x.
4x is raised to -2, to 3, and to 9.
When you multiply expressions with the same base, keep the same base, and add the exponents.

-2 + 3 + 9 = 10

Answer: (4x)^10

The answer is 4x to the 10th power

Can anyone help me on this

Answers

Hi Connor.

First, let's define the formula for finding the circumference of a circle (as a tire is a circle). To find the circumference, multiply by diameter by Pi, or [tex] \pi [/tex], or you can multiply the radius by 2 and then multiply that product by Pi. Given that we already have our diameter, let's use [tex] \pi [/tex]D.

3.14 x 2.5 = 7.85.

For part A: The circumference of the tire is 7.85 ft^2.

Now, to solve for part B; since we have our circumference, or the full rotation of the tire, we need to divide 1 mile (5,280 ft) by that number.

5,280 / 7.85 = 672.611

For part B: The tire will have to rotate about 673 times.

I hope this helps!

I’m not sure if I’m doing this right :/

Answers

I'm very proud! You did this on point, you did an amazing job on this question above.

This is what I noticed.

You potted both (4,4) corectly, and also as (y= -3), this was also potted correctly. And from there, you made a intersecting line that would be passing from both. And also, you found the relationship between the following terms that were listed below.

Great work! And keep it up. Have an amazing day!
# 2 should be y=7/4x-3

slope = (y2-y1) / x2-x1 = 4- -3 / 4-0 = 7/4

 and for 3 when Y is -3 x is 0 not 1 and the rest of the chart is alo off, find points where the line crosses the x and Y

Find the value of x.
A) x = 60
B) x = 59
C) x = 121
D) x = 177

Answers

Since a triangle always equals 180 degrees, set all these variables equal to 180.
Lets try.
X+3+x+x= 180
Combine like terms
3x+3= 180
Subtract each side by 3
3x=177
Divide each side by 3
X= 59

There are 36 students in the chess club , 40 students in the drama club , and 24 students in the film club. Which ratio is equivalent to 5:3

Answers

5 +3 =8

40/8 = 5
24 / 8 = 3

 40 students in drama club and 24 students in film club

Mark and Jill each have a $6500 loan with a loan term of 4 years. The interest rate on Mark’s loan is 3% and the interest rate on Jill’s loan is 4%. Mark’s monthly payment is $144 and Jill’s monthly payment is $147. How much more in interest will Jill pay than Mark?
A.
$144


B.
$412


C.
$556


D.
$968

Answers

b:$412 will be your answer

A right rectangular prism has a length of 6 cm, a width of 8 cm, and a height of 4 cm. The dimensions of the prism are halved.


What is the volume of the reduced prism?


Enter your answer in the box.


_cm³

Answers

Hi there!

To find the volume of the reduced prism, we divide everything by 2 and then find the volume:

6/2=3
8/2=4
4/2=2

Now, we multiply:

3*4*2=24

So, the volume of the reduced prism is 24cm cubed. 

Hope this helps!

Two similar parallelograms have areas of 18 in2 and 32 in2. Find the ratio of their perimeters.

Answers

To find the ratio of their perimeters, you need to know that the ratio of a perimeter is the square root of the ratio of the areas. (Area is 2 dimensional, so what you do to the perimeter will have twice or be squared for the area).

So, you would simplify the ratio of 18/32 to 9/16.

Then take the square root of 9 and 16 separately to find the ratio of the perimeters.

Square root of 9 is 3.
Square root of 16 is 4

So, the ratio of the perimeters is 3 in/4 in.

Emma created the poster shown below: A rectangle is shown. The length of the rectangle is labeled as length equal to 36 cm, and the width is labeled as width equal to 24 cm. What would be the dimensions of the poster at fraction 1 over 4 times its current size? Length = 32 cm, width = 20 cm Length = 40 cm, width = 28 cm Length = 144 cm, width = 96 cm Length = 9 cm, width = 6 cm

Answers

the answer is D. Length = 9, width = 6cm

Answer:

Length = 9 cm, width = 6 cm

Step-by-step explanation:

If the length of the rectangle is labeled as length equal to 36 cm, and the width is labeled as width equal to 24 cm.

Length = 36cm

Width = 24cm

One fourth the current size of the rectangle will be;

New length= 1/4×36 = 9cm

New width = 1/4 × 24 = 6cm

The new dimension of the poster is therefore 9cm×6cm

Length = 9cm

Width = 6cm

a car is travelling at x kilometres per hour find the cars speed, in terms of x in metres per second give your answer in its simplest form

Answers

Final answer:

To convert a car's speed from kilometers per hour (x km/h) to meters per second, divide x by 3.6. This is because there are 1,000 meters in a kilometer and 3,600 seconds in an hour, leading to the simple formula: x / 3.6 m/s.

Explanation:

To find the car's speed in meters per second (m/s) when it is traveling at x kilometers per hour (km/h), we need to convert km/h to m/s. There are 1,000 meters in a kilometer and 3,600 seconds in an hour. So, to convert from km/h to m/s, we use the conversion factor 1 km = 1,000 m and 1 hour = 3,600 seconds.

The formula to convert x km/h to m/s is: x \(\times\) 1,000 m / 3,600 s. Simplifying this, we get:

x \(\times\) 1,000 / 3,600 = x / 3.6 m/s.

Therefore, if a car is traveling at x kilometers per hour, its speed in meters per second is x / 3.6 m/s in its simplest form.

What is the measure of an angle that turns through 3/4 of a complete circle

Answers

A full circle would have 360 degrees so only 3/4 of that circle would be 270 degrees.

The measure of an angle that turns through 3/4 of a complete circle is 270°.

What are arithmetic Operations?

The four fundamental operations of arithmetic are addition, subtraction, multiplication, and division of two or even more items.

Included in them is the study of integers, especially the order of operations, which is important for all other areas of mathematics, notably algebra, data management, and geometry.

As per the given information in the question,

The angle of the complete circle is 360°.

Then, 3/4 of a complete circle will be,

360 × 3/4 = 270°

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a line's y-intercept is 0, and its slope is 6/5. what is its equation in slope-intercept form?
Write your answer using integers, proper fractions, and improper fractions in simplest form.

Answers

Answer:
y = [tex] \frac{6}{5} x[/tex]

Explanation:
The equation of the line has a general formula:
y = mx + c
where:
m is the slope = 6/5
c is the y-intercept = 0

Substitute with the givens in the above formula to get the equation of the line as follows:
y = [tex] \frac{6}{5} x[/tex] + 0
y = [tex] \frac{6}{5} x[/tex]

Hope this helps :)
 the equation will be y = 6/5 x + 0. But you can remove the 0 because its not necessary. 

If L
is 30
units long and W
is 10
units long, how long is the diagonal to the nearest tenth?

Answers

Answer:

Step-by-step explanation:

what is (x-5)(x-3)=10 as a quadratic equation

Answers

Use the FOIL method for (x - 5)(x-3)

FOIL = First, Outside, Inside, Last

x(x) = x²
x(-3) = -3x
-5(x) = -5x
-5(-3) = 15

x² - 3x - 5x + 15 = 0

simplify by combining like terms

x² - 3x - 5x + 15 = 0
x² - 8x + 15 = 0

x² - 8x + 15 = 0 is your answer

hope this helps

Just #10 please!! Due soon too!!

Answers

A triangle would always equal 180 degrees,”.
Answer: 378 square feet

=========================================================

Explanation:

The goal is to find the area of the overall trapezoid (trapezoid MNRS)

To do this, we need three things:
A) The bottom horizontal length NR
B) The top horizontal length MS
C) The height of the trapezoid; the vertical distance from the bottom horizontal piece to the vertical horizontal piece

We don't know (A) but we know (B). The length of MS is 18 ft
We don't know (C), but we can find it fairly easily

Area of triangle TPQ = 84
84 = (base)*(height)/2
84 = 12*h/2
84*2 = 12*h
168 = 12*h
12h = 168
h = 168/12
h = 14

The height of triangle TPQ is 14 feet
The height of trapezoid MNRS is 14 feet

The hardest part will be figuring out the length of NR

We're told that NP, PQ and QR are in a ratio of 2:1.5:1
this means 
NP = 2*k
PQ = 1.5*k
QR = 1*k
where k is some positive number

From the diagram we see that PQ is 12 ft, so
PQ = 1.5k
1.5k = 12
k = 12/1.5
k = 8
leading to...
NP = 2*k = 2*8 = 16
PQ = 1.5*k = 1.5*8 = 12
QR = 1*k = 1*8 = 8

So,
NR = NP+PQ+QR
NR = 16+12+8
NR = 36

We finally have enough to find the area of the trapezoid
area of trapezoid = (height)*(base1+base2)/2
area of trapezoid = (14)*(18+36)/2
area of trapezoid = (14)*(54)/2
area of trapezoid = 756/2
area of trapezoid = 378 square feet


how do you find the ratio of 40:28

Answers

First reduce it.
10:7 In a sense that is about as far down as you can go
You could however make it 1 3/7 to 1

how to slove this more complex negative exponent problem?

Answers

When an expression or a number is raised to the negative exponent, you have to reciprocate the expression or the number.

In this problem, the expression is raised to the power of -2

Therefore, the expression would become like this after reciprocating:

1/ (3x^2) ^2

Simplifying the expression:

1/ 9x^4

How would six billion, nine hundred thirty-six thousand, fourteen be written in standard form? A.693,614B.6,936,014C.6,000,936,014D.6,936,000,014

Answers

The answer is C.

6,000,936,014
Hi there!

The answer would be C. 

Hope this helps!

Candy is at the balloon shop and sees that 10 balloons cost 0.15 he needs 50 balloons to decorate his room how much will 50 balloons cost?

Answers

50/10 = 5
5 * 0.15 = 0.75 
it will cost 75 cents
.75 I believe , .15x5=.75.










Alyssa works as a sales representative in an electronics store. She earns a fixed daily wage plus a commission on the sales she makes. The table shows her earnings based on the amount of sales she makes in a day.

Total Sales ($) Daily Earnings ($)
0 80
200 110
500 155
800 200
1,200 260

The equation that gives Alyssa's daily earnings based on her total sales is_____ .

When this data is plotted on a graph with a line connecting all the points, the y-intercept of the line represents _______ and the slope of the equation represents .

In this scenario, the y-intercept is________ .

fill in the blanks
here are the answer choices for the 1st one y=1.5x+80
y=0.

Answers

a) The slope of the line relating Alyssa's sales to earnings is given by 
   slope = (change in earnings)/(change in sales)
Using the first two table entries, the slope is calculated as
   slope = (110 -80)/(200 -10) = 30/200 = 0.15

The first entry in the table shows the y-intercept, the value of earnings (80) for zero sales. The slope-intercept form of the equation for a line is
   y = slope*x + y-intercept

To answer the first question, we put the slope and intercept values in the appropriate spots in the equation.

The equation that gives Alyssa's daily earnings based on her total sales is
   y = 0.15x +80

b) The y-intercept of the line represents the part of Alyssa's earnings that doesn't depend on sales. It is Alyssa's fixed daily wage.

c) The slope of the equation represents Alyssa's commission rate.

d) The y-intercept is 80.

Answer: the same as the other person is righti

Step-by-step explanation:

What should be added to 3 to make the sum of 0?

Answers

Well if you have three and add negative 3 it equals 0

3+-3=0
Hope this helps
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