Two people quit work and begin college at the same time. Their salary and education information is given in the table below.

Salary prior to school
Years attending college
Total cost of college
Salary upon graduating
Person A
$18,000
3
$45000
$33,000
Person B
$27,000
4
$30,000
$37,000

Choose the true statement.
a.
Person A recovers their investment in a shorter amount of time.
b.
Person B recovers their investment in a shorter amount of time.
c.
They recover their investments in the same amount of time.
d.
There is too little information to compare the time to recover their investments.

Answers

Answer 1

Person B recovers their investment in a shorter amount of time.

What is the recovery time?

In order to determine the recovery time, divide the total cost of college by the salary that is earned after graduating from college.

Division is the process of grouping a number into equal parts using another number. The sign used to denote division is ÷. Division is one of the basic mathematical operations.

Recovery time = cost of college / salary after college

Recovery time for person A  = $45,000 / $33,000 = 1.36

Recovery time for person B  = $30,000 / $37,000 = 0.81

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Related Questions


A flea landed on a coordinate grid. The flea hopped across the x -axis and then across the y -axis in the form of two consecutive reflections. Then it walked 9 units to the right and 4 units down. If the flea's final position was at (4,-1) , what point did it originally land on?

Answers

The original coordinates of flea were  (  5 , - 3) .

What does coordinate mean in this case?

To coordinate is to make plans for things to come together or to collaborate with another person to achieve a goal. Coordination occurs when all the details of a journey are planned. When you and a friend divide up a large science project and decide who will do what, that is an example of coordination.

F' = ( 4 , - 1 )

To undo translation of 9 units’ right and 4 units down, translate 9 units left and 4 units up

( 4, - 1 ) →  ( 4 - 9 , -1 + 4 )

           →   ( -5,3)

Reflect back across Y-axis to undo reflection means change x -coordinate by -1

(- 5,3)    →    ( 5, 3)

Reflect back across x-axis to undo reflection means change y-coordinate by -1

( 5 , 3) → (  5 , - 3)

Therefore the original coordinates of flea were (  5 , - 3)

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Find the slope of the line through each pair of points. (-2,-4) and (1,2)

Answers

The slope of the line passing through the pair of points, (-2 , -4) and (1 , 2), is 2.

The slope, m, determines the steepness of a line. It can be measured by the vertical distance from one point to another divided by the horizontal distance of the same points. The formula for solving the slope is:

m = (y2 - y1)/(x2 - x1)

where m is the slope

x1 and y1 are the coordinates of one point

x2 and y2 are the coordinates of the 2nd point

Given two points in the line, (-2 , -4) and (1 , 2), plug in the values to the formula for the slope.

m = (y2 - y1)/(x2 - x1)

m = (2 - -4)/(1 - -2)

m = 6/3

m = 2

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A school system is reducing the amount of dumpster loads of trash removed each week. in week 5, there were 45 dumpster loads of waste removed. in week 10, there were 30 dumpster loads removed. assume that the reduction in the amount of waste each week is linear. write an equation in function form to show the amount of trash removed each week. f(x) = −3x 45 f(x) = 3x 45 f(x) = −3x 60 f(x) = 3x 60

Answers

f(x) = −3x + 60 is the linear equation in function form to show the amount of trash removed each week.

Let x be the number of weeks and y be the trash removed

Then , the linear equation can be given as

y=mx+c

To find out the slope and intercept, let's have a look at the given conditions.

For week 5, we can write the equation as

45 = 5m +c ... (1)

For week 10, we can write the equation as

30 =10m +c ......(2)

Solving both the equation by elimination method

(45 = 5m +c) * 2

30 = 10m+c

c = 60

Now, finding the value of x by substituting value of c in eq (1)

45 = 5m + 60

-15 = 5m

m = -3

Now, the required linear equation becomes

y = -3x + 60

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y varies directly with x .
If y=7 when x=2 , find x when y=3 .

Answers

The required value of x is 6 / 7.

What is the constant of proportion?

A constant of proportion is illustrated as the ratio which relates two given quantities with each other in the relationship of proportion. Constant of proportion is also called constant variation, rate of change, and constant ratio.

Solving for the value of y

let k be the constant of proportion

When a quantity varies directly with others, then we have a relation, y = kx     —-- 1

Now, find constant of proportion for given x = 2 and y = 7, we need to put these values in equation 1, i.e.

7 = k(2)

k = 7 / 2

Further calculate x for given y = 3 i.e.

3 = (7 / 2)x

x = 6 / 7

Hence, the required value of x is 6 / 7.

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The rectangle shown has an area of 84 square inches. Find the dimensions of the rectangle.

Answers

The dimensions of the rectangle:

Length = 12 inches

Width = 7 inches

What is the Area of a Rectangle?

Area of a rectangle = (length)(width)

Given the following:

Area of the rectangle = 84 square inches

Length = x + 3

Width = x - 2

Therefore:

(x + 3)(x - 2) = 84

Expand

x² + x - 6 = 84

x² + x - 6 - 84 = 0

x² + x - 90 = 0

Factorize

(x - 9)(x + 10) = 0

x = 9 or x = -10

Substitute x = 9 into each expression to find the dimensions of the rectangle:

Length = x + 3 = 9 + 3 = 12 inches

Width = x - 2 = 9 - 2 = 7 inches

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ARE YOU GOOD AT ALGEBRA? PLS HELP. INDICATE ALL TRANSFORMATIONS AND JUSTIFY EACH ONE!

Answers

Answer:

See explanation

Step-by-step explanation:

f(x)=|x|

f(x) ==> f(x+3): translation of function 3 units to the left, f(x-3) would be translation 3 units right

f(x+3) ==> 3f(x+3): vertical stretch by a factor of 3

f(x+3) ==> -3f(x+3): Reflection over the x-axis, since y value changes over the x-axis while x value changes over the y-axis

-3f(x+3) ==> h(x)=-3f(x+3)+1: Translation one unit up.

Simplify the expression
3\sqrt{27x^6y^4}

Answers

The simplified form of given expression 3√{27x^6y^4} is x³y²9√3

In this question, we have been given an expression 3\sqrt{27x^6y^4}

We need to simplify given expression.

3√{27x^6y^4}

= 3√{(3 × 9) x^6 y^4}

= 3√(3 × 9) × √x^6 × √y^4

= 3 (3√3) × x^(6/2) × y^(4/2)

= 9√3 × x³ × y²

= x³y²9√3

Therefore, the simplified form of given expression 3√{27x^6y^4} is x³y²9√3

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Given h(x) = -x + 5, find h(-5).

Answers

h(x)=-(-5)+5= 10 answer (10)

The endpoints of​ are cap A​ open paren negative 8 comma 5 close paren(−8, 5)​ and cap B​ open paren 0 comma 7 close(0, 7)​ . Find the coordinates of the midpoint cap m

Answers

The coordinates of the midpoint M of the segment AB are; (-4, 6).

What are the coordinates of the midpoint AB?

It follows from the task content that points A and B have coordinates; (-8,5) and (0,7) respectively.

Since Midpoint is given as; {(x1 +x2)/2, (y1 +y2)/2}.

It follows that the midpoint in this scenario is;

= {(-8 +0)/2, (5 +7)/2}

= (-4, 6).

Ultimately, the midpoint is; (-4, 6).

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Can Pi be written as a fraction?


Please help its my last question on the test and its due today!
i will give "Thanks" and "Brainlist"

Answers

Answer:

Pi is an irrational number, which means that it is a real number that cannot be expressed by a simple fraction.

Answer:

No

Step-by-step explanation:

It can not be a fraction because it is a never-ending/infinite decimal.

A football is punted into the air. Its height h, in meters, after t seconds is given by the equation h=-4.9t²+25.5t+1. Round your answer to hundredths place if needed.

1. How high is the ball after 3 seconds?
2. What is the maximum height of the ball and how many seconds will it take to reach that point?
3. How long will the ball be in the air?

Answers

Using the given quadratic function, it is found that:

1. The ball has a height of 33.4 meters after 3 seconds.

2. The maximum height of the ball is of 34.18 meters, taking 2.6 seconds to reach it's height.

3. The ball will be in the air for 5.24 seconds.

What is the quadratic equation for the ball's height?


The quadratic equation for the ball's height after t seconds is given by:

h(t) = -4.9t²+ 25.5t + 1.

Hence, after 3 seconds, the height is:

h(3) = -4.9(3)² + 25.5(3) + 1 = 33.4 meters.

The ball has a height of 33.4 meters after 3 seconds.

What is the maximum height of the ball?

To find the maximum height of the ball, we have to find the vertex of the function.

What is the vertex of a quadratic equation?

A quadratic equation is modeled by:

y = ax^2 + bx + c

The vertex is given by:

[tex](x_v, y_v)[/tex]

In which:

[tex]x_v = -\frac{b}{2a}[/tex][tex]y_v = -\frac{b^2 - 4ac}{4a}[/tex]

Considering the coefficient a, we have that:

If a < 0, the vertex is a maximum point.If a > 0, the vertex is a minimum point.

For this problem, the coefficients are given as follows:

a = -4.9, b = 25.5, c = 1.

Hence:

[tex]x_v = -\frac{25.5}{2(-4.9)} = 2.6[/tex][tex]y_v = -\frac{(25.5)^2 - 4(-4.9)(1)}{4(-4.9)} = 34.18[/tex]

The maximum height of the ball is of 34.18 meters, taking 2.6 seconds to reach it's height.

How long the ball was in the air?

To find how long the ball was in the air, we have to solve the quadratic equation, hence:

[tex]\Delta = 25.5^2-4(-4.9)(1) = 669.85[/tex][tex]t_1 = \frac{-25.5 + \sqrt{669.85}}{2(-4.9)} = -0.04[/tex][tex]t_2 = \frac{-25.5 - \sqrt{669.85}}{2(-4.9)} = 5.24[/tex]

Time has to assume positive values, hence:

The ball will be in the air for 5.24 seconds.

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Could I get an equation for this problem please?

*See picture for word problem

Answers

The number of tacos that you can get if a drink cost $1.50 and each taco cost $.75 is 4.67.

Word problem

Cost of a drink = $1.50Cost of each taco = $.75Total amount with you = $5Number of tacos bought = t

5 = 1.50 + 0.75t

subtract 1.50 from both sides

5 - 1.50 = 0.75t

3.50 = 0.75t

divide both sides by 0.75

t = 3.50 / 0.75

t = 4.666666666666666

Approximately,

t = 4.67

Therefore, the number of tacos that you can get if a drink cost $1.50 and each taco cost $.75 is 4.67

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what is the answer to
-2(2x+3)= -4(x+1)-2

Answers

Step-by-step explanation:

-4x-6=-4x-4-2

-4x+4x=6-4-2

x=1

Paige solved the inequality -1/2x > -6 by using the Division Property of Inequality to get x >12 Did Paige solve the inequality correctly?

Answers

Using the Division Property of Inequality, Paige was able to get x > 12 and solve the inequality -1/2x > -6. Paige solve the inequality correctly.

Given that,

Using the Division Property of Inequality, Paige was able to get x > 12 and solve the inequality -1/2x > -6.

According to the division property of inequality, if we divide an equation's two sides by the same number, the equation doesn't change.

Let's say you have two identically sized pizzas. You divide each one into halves and serve your buddies one half of each pizza. You will have equal pieces of both pizzas left over if you measure the remaining portions.

-1/2x>-6

-1x>-6[tex]\times[/tex]2

-1x>-12

multiplying -1 on both sides we get

x>12

Therefore, Paige solve the inequality correctly.

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45, -72, and 0 all are examples of:
Positive integers
Negative integers
Irrational numbers
Integers

Answers

Answer:

Integers

Step-by-step explanation:

They are not all positive integers because -72 is negative.

They are not all negative because 45 is positive. The + sign is implied.

They are all whole numbers and not irrational.

Thus, they are integers, which by looking at the data, we see is true.


In an arithmetic sequence with a₁ =4 and d=9 , which term is 184 ?

Answers

The value of 184 is 21th term value.

How to find the which term is 184?

The difference between any two consecutive integers in an arithmetic progression (AP) sequence of numbers is always the same value.

The formula of Arithmetic progression is

a(n) = a1 + (n - 1)d

given that the terms of arithmetic sequence,

a2 = 4 and d = 9.

now find the which term is 184.

a(n) = a1 + (n - 1)d

now, substitute a(n) = 184, d = 9.

184 = 4 + (n - 1)9

184 = 4 + 9n -9

184 = -5 +9n

184 + 5 = 9n

n = 189/9

n = 21

Hence,the value of 184 is 21th term value.

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HELP ASAP!!!!!!!

Which expression is equivalent to −5 + 8 − 6x − 8x?

1.) 14x + 13
2.)-14x - 3
3.)-14x + 3
4.)-14x + 13

Answers

The expression 3-14x is equivalent to -5+8-6x-8x.

The phrase has the same meaning as,

=-5+8-6x-8x

=(3)-(14x)

=3-14x

Any combination of terms that have undergone operations like addition, subtraction, multiplication, division, etc. is known  variable expression. Let's use the equation 5x + 7 as an example. Thus, 5x + 7 is an illustration of an algebraic expression.

There are three primary categories of algebraic expressions, including: Numeral Expression. Binary Expression of a polynomial.

Properties:

Equivalence Property.Associative Quality.Discretionary PropertyProperty of identity.Contrary Property.

Hence, the expression 3-14x  is equivalent to -5+8-6x-8x.

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Answer: -14x + 13

Step-by-step explanation:


The sides of a triangle have lengths 2 x, 8 , and 12. If the length of the longest side is 2 x , what values of x make the triangle acute?

Answers

The values of x to make the triangle acute is [tex]2 < x < 2\sqrt{13}[/tex].

Triangle inequality theorem states that that the sum of any two sides of the triangle is greater than the third side of of the triangle

Pythagorean Inequality theorem states that if the square of the longest side  is less than the sum of squares of other two sides then the triangle is acute.

In the given question

Longest side = 2x

other two shorter side =  8 and 12.

By Triangle Inequality theorem

(i) 8+12>2x    ⇒20>2x  ⇒x<10

(ii) 2x+8>12  ⇒2x>4  ⇒x>2

(iii) 2x+12>8  ⇒2x>-4  ⇒x>-2

From (I), (ii) & (iii) we conclude that value of x should be in between 2<x<10.

To make the triangle acute

Using Pythagorean Inequality theorem

[tex](2x)^{2} < 8^{2} +12^{2} \\ \\ 4x^{2} < 64+144\\ \\ 4x^{2} < 208\\ \\ x^{2} < \frac{208}{4}[/tex]

[tex]x^{2} < 52\\ \\ taking. Square. Root . both . the . sides \\ \\ x < \sqrt{52} \\ \\ x < 2\sqrt{13}[/tex]

Therefore , the value of x to make the triangle acute is [tex]2 < x < 2\sqrt{13}[/tex].

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...Sorry................

Answers

The Average consumption per person in the country in the given year is 7.6 gallons

How to find average consumption?

Average is found by adding the several amounts together  and then dividing by the total number of amounts added.

Given that the annual consumption of fruit juice of a particular country = the total consumption by whole population in that year=  [tex]2.28*10^{9}[/tex]  gallons

Total population of that country in the given year = [tex]3.0*10^{8}[/tex]

Therefore Average consumption per person

                                                    =total consumption / total population

                                                      [tex]\frac{2.28*10^{9} }{3.0*10^{8} } \\=0.76*10\\=7.6[/tex]

This means the Average number of gallons consumed per person in the country in the given year is 7.6 gallons

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Identify all the correct names for the given angle.

Answers

Answer: id k if this was what you were looking for but i tried

Step-by-step explanation:

h=acute

rhp=acute

vhp=acute

v=straight angle

phv=acute


COORDINATE GEOMETRY Find the distance from P to l. Line l contains points (-3,0) and (3,0) . Point P has coordinates (4,3) .

Answers

According to the given statement the perpendicular distance form the point  (4,3)  is 3.

What Exactly Is Coordinate Geometry?

Coordinate Geometry can be used to define points in space. The primary axis labeled a x- and y-axes is defined first, and then the points were measured and labelled in relation to these points. Furthermore, numerous geometric forms such as a line, curve, circle, ellipse, and hyperbola can be plotted inside the coordinate axes and their attributes studied.

According to the given data:

the equation for line ℓ.

Begin by finding the slope of the line through the given points, (-3,0) and (3,0):

m = (Y₂ - Y₁)/(x₂ - x₁)

   = (0 - 0)/(-3 - (-3))

   = 0/0

The equation of the line using point (3,0) on the line:

Y - Y₁ = m(x - x₁)

putting value we get: (m = 0)

Y =0(x + x₁)

Y = 0

The equation of the line w perpendicular to line ℓ through P(4,3).

The slop of line l is 0.

hence this will be x- axis

and perpendicular distance from a point (x1,y1) to x- axis will be y1.

So the perpendicular distance form the point  (4,3)  is 3.

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write 3 names for the angle

Answers

the correct answer would be “isosceles” and “acute angle”

The names of the three angles are:

∠ABC = acute angle

∠FGH = right angle

∠QRS = obtuse angle

We have,

From the figure given,

The angles must be either right angles, acute angles, or obtuse angle.

Acute Angle: An acute angle is an angle that measures less than 90 degrees. It is smaller than a right angle.

Obtuse Angle: An obtuse angle is an angle that measures greater than 90 degrees but less than 180 degrees. It is larger than a right angle.

Right Angle: A right angle is an angle that measures exactly 90 degrees. It forms a perfect "L" shape and is typically denoted by a square corner symbol (∟).

Now,

The angle is less than 90 degrees.

∠ABC = acute angle

The angle is 90 degrees.

∠FGH = right angle

The angle is greater than 90 degrees.

∠QRS = obtuse angle

Thus,

The names of the three angles are:

∠ABC = acute angle

∠FGH = right angle

∠QRS = obtuse angle

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Find reference angle and exact value

Answers

The reference angle of the angle of -240º is of 60º.

The sine of the angle is given by:

[tex]\sin{-240^\circ} = \frac{\sqrt{3}}{2}[/tex]

How to find the reference angle of -240º?

The first step towards finding the equivalent angle of a negative angle is finding it's positive equivalent, adding 360º to it, hence:

-240º + 360º = 120º.

Then we have to find the equivalent on the first quadrant. 120º is on the second quadrant, hence:

180º - 120º = 60º.

The reference angle of the angle of -240º is of 60º.

On the second quadrant, the sine is positive, hence:

[tex]\sin{-240^\circ} = \sin{60^\circ} = \frac{\sqrt{3}}{2}[/tex]

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Two spheres have surface areas of 100 \pi square centimeters and 16π square centimeters. What is the ratio of the volume of the large sphere to the volume of the small sphere?

Answers

The ratio of the volume of the large sphere to the volume of the small sphere is 125/8.

Given two spheres having surface areas of 100π square centimeters and 16π square centimeters, solve for the radius of each spheres using the formula for the surface area of sphere.

A = 4πr^2

Sphere 1 : 100π cm^2 = 4πr^2

r^2 = 25

r = 5 cm

Sphere 2 : 16π cm^2 = 4πr^2

r^2 = 4

r = 2 cm

Then, solve for the volume of each spheres using the formula:

V = 4/3πr^3

Sphere 1 : V = 4/3π(5cm)^3

V = 500/3 π cm^3

Sphere 2 : V = 4/3π(2cm)^3

V = 32/3 π cm^3

Getting the ratio of the volume of the large sphere to the volume of the small sphere,

ratio = 500/3 π cm^3 / 32/3 π cm^3

ratio = 125/8

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Construct an equilateral triangle. Verify your construction using measurement and justify it using mathematics. (Hint: Use the construction for copying a segment.)

Answers

A triangle PRS is an equilateral triangle.

An equilateral triangle is a triangle whose all the three sides are equal and each angle measures 60º.

To construct an equilateral triangle:

1) First draw a ray PQ.

2) Then, with P as center and radius equal to 5 cm, draw an arc to cut ray PQ at R.

⇒ PR = 5 cm

3) Then, with R as the center and radius equal to 5 cm, draw an arc to intersect the initial arc at S.

4) Join PS and RS.

Now, the triangle PRS is an equilateral triangle with each side length of 5 cm.

Now mathematically we prove that the triangle we've constructed is an equilateral triangle.

PR = PS                   .......................(the radius of the arc is same)

PR = RS                  .......................(the radius of the arc is same)

Hence by transitivity property,

PR = RS = PS  which is 5 cm

Therefore, triangle PRS is an equilateral triangle.

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x < -3

Solutions:
X=
X=
X=
On a Number Line
-7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7

Answers

The values of the x in number line are  -7 -6 -5 -4.

According to the statement

We have to find that the numbers in the number line.

So, For this purpose, we know that the

A number line is a horizontal line that has equally spread number increments

From the given information:

The given equation is a x < -3 And a numbers givens On a Number Line are:

-7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7

It means we have to find the numbers in a number line less than the -3.

we know that the large numbers with the negative sign are a smaller number and

the Small numbers with the negative sign are a larger number.

According to this,

The numbers -7 -6 -5 -4 are the values of the x less than the -3.

So, The values of the x in number line are  -7 -6 -5 -4.

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An object is moving at a speed of 1 yard every 7.5 months. Express this speed in centimeters per hour. Round your answer to the nearest hundredth.
*Note: you must use these exact conversion factors to get this question right.

Answers

Based on the speed of the object at 1 yard every 7.5 months, the speed in centimeters per hour is 0.01693 cm/ hour

What is the speed of the object?

First, convert 1 yard to centimeters:

1 yard = 91.44 cm

Convert 7.5 months to hours:
= 7.5 months  x 30 days per month x 24 hours per day

= 5,400 hours

The speed in centimeters per hour can therefore be found to be:

= 91.44 / 5,400

= 0.01693

= 0.01693 cm/ hour

In conclusion, the object is moving at a speed of 0.01693 cm/ hour

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Find f(-3), f(0) , and f(1) for the function f(x) = (2/5)x-2

Answers

The f(-3), f(0) , and f(1) is (-16/5), -2 and (-8/5).

The given function is f(x) = (2/5)x-2

1) f(-3) = x = -3

Substituting the value of x in the equation f(x) = (2/5)x - 2, we get -

f(-3) = (2/5)x - 2

f(-3) = (2/5)(-3) - 2

f(-3) = (-6/5) - 2

f(-3) = (-6 -10)/5

f(-3) = -16/5

2) f(0) = x = 0

Substituting the value of x in the equation f(x) = (2/5)x - 2, we get -

f(0) = (2/5)(0) - 2

f(0) = -2

3) f(1) = x = 1

Substituting the value fo x in the equation f(x) = (2/5)x - 2, we get -

f(1) = (2/5)(1) - 2

f(1) = (2/5) - 2

f(1) = (2 - 10)/5

f(1) = -8/5

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The distribution of weight for 9-ounce bags of a particular brand of potato chips can be modeled by a normal distribution with
mean = 9.12 ounces and standard deviation o=0.05 ounce. Sketch the normal density curve. Label the mean and the points
that are 1, 2, and 3 standard deviations from the mean. Do not round your answers.

Answers

The graph of the normal distribution is given at the end of the answer.

What does the Empirical Rule state?

It states that, for a normally distributed random variable, approximately:

68% of the values in the distribution are within 1 standard deviation of the mean.95% of the values in the distribution are within 2 standard deviations of  the mean.99.7% of the values in the distribution are within 3 standard deviations of the mean.

The normal distribution is symmetric, hence, from the Empirical Rule, we get that most observations will be clustered around the mean, which is the center of the distribution.

The mean is of 9.12 and the standard deviation is of 0.05, hence:

68% of the values are between 9.07 and 9.17.95% of the values are between 9.02 and 9.22.99.7% of the values are between 8.97 and 9.27.

The graph of the distribution is given at the end of the answer.

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Determine whether the statement is always, sometimes, or never true. Explain you reasoning.
If point A lies in plane P , then AB↔ lies in plane P.

Answers

A line segment is also a line but a line with finite length and fixed endpoints. The given statement "If point A lies in plane P, then AB↔ lies in plane P" can be sometimes true.

What is a line?

A line is a one-dimensional shape that is straight, has no thickness, and extends in both directions indefinitely.

A line segment is also a line but a line with finite length and fixed endpoints.

The given statement "If point A lies in plane P, then AB↔ lies in plane P" can be sometimes true. Because if Point A and B both lie on the same plane, p then line AB will lie on plane P. Therefore, the given statement "If point A lies in plane P, then AB↔ lies in plane P." will be true.

But if Point A lies on plane P, while point B lies on another plane, then line AB will not lie on plane P. Therefore, the given statement "If point A lies in plane P, then AB↔ lies in plane P." will be false.

Hence, The given statement "If point A lies in plane P, then AB↔ lies in plane P" can be sometimes true.

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