Given the expression: 12x2 + 18x − 12 Part A: What is the greatest common factor? Explain how to find it. (3 points) Part B: Factor the expression completely. Show all necessary steps. (5 points) Part C: Check your factoring from Part B by multiplying. Show all necessary steps. (2 points)

Answers

Answer 1

Part A: The GCF of the expression 12x² + 18x - 12 is 6x.

Part B: The factored form of the expression 12x² + 18x - 12 is 6x(2x + 3) - 12x.

Part C: The result matches the original expression, which means our factoring is correct.

Part A: Finding the Greatest Common Factor (GCF)

To find the greatest common factor (GCF) of the given expression, we need to identify the largest term or number that can divide evenly into all the terms of the expression. In this case, we are dealing with three terms: 12x², 18x, and -12.

The coefficients of the three terms are 12, 18, and -12. The common factor of these coefficients is 6, as it can divide evenly into all of them.

The variable 'x' is present in both the first and second terms, and 'x' is also a common factor.

Combining the common factors of the coefficients and variables, we find that the GCF of the expression 12x² + 18x - 12 is 6x.

Part B: Factoring the Expression Completely

Now that we have determined the GCF of the expression, we can proceed to factor it completely.

We already found that the GCF is 6x. Factoring it out from each term, we get:

6x(2x + 3) - 6x(2)

We can simplify the expression further by multiplying the GCF with the remaining terms inside the parentheses:

6x(2x + 3) - 12x

Part C: Checking the Factoring

To check if our factoring is correct, we can multiply the factored expression back and see if it matches the original expression.

Multiplying the factored expression:

6x(2x + 3) - 12x

= 12x² + 18x - 12

The result matches the original expression, which means our factoring is correct.

To know more about expression here

https://brainly.com/question/14083225

#SPJ1


Related Questions

Amy is going on a roadtrip with her friends and needs to save $160. If she starts saving 18% of her weekly earnings at the pool, how many whole weeks will it take her to save $160?

Answers

There are 6 whole weeks will it take her to save $160.

We have to given that;

Amy is going on a road trip with her friends and needs to save $160.

And, she starts saving 18% of her weekly earnings at the pool,

Now, Let number of weeks it take her to save $160 is, x

Hence, We get;

160 = 160 x 0.18 x t

t = 1/0.18

t = 5.55 weeks

Thus, There are 6 whole weeks will it take her to save $160.

Learn more about the multiplication visit:

https://brainly.com/question/10873737

#SPJ1

Helen is building a rectangular garden in her backyard and she wants to have a fence around it.The perimeter of her garden is 20 yards. She is buying wood fence panels that cost $2 per foot. How many feet of fence panels does she need

Answers

Based on the calculations, Helen needs to buy 60 feet of fence panels for her rectangular garden in the backyard

How many feet of fence panels does she need

From the question, we have the following parameters that can be used in our computation:

The perimeter of her garden is 20 yards. She is buying wood fence panels that cost $2 per foot

This means that

Perimeter = 20 yards

By metrric unit of conversion, we have

1 yard = 3 feet

So, we have

Perimeter = 20 * 3 feet

Evaluate

Perimeter = 60 feet

Hence, she needs to buy 60 feet of fence panels

Read more about perimeter at

https://brainly.com/question/19819849

#SPJ1

(8,-5)(4,7) 1:3 find the partitions the segment with the two given endpoints with the given ratio

Answers

The partitions coordinate are (7, -2).

We have the coordinates (8, -5) and (4, 7)

Ratio = 1 :3

Using Section Formula

x = ( 4 + 24)/ 4

x = 28/4

x= 7

and, y= (7 - 15)/4

y = -8/4

y= -2

Thus, the partitions coordinate are (7, -2).

Learn more about Section Formula here:

https://brainly.com/question/30242630

#SPJ1

Analyze the diagram below and complete the instructions that follow.
Find cos 45°.
A 1
NI-
2
45°
B. √√√2
2

Answers

Answer:

cos(45°) = √2/2

B is correct.

please help with this question

Answers

Answer:

Step-by-step explanation: Here if we put [tex]x=0[/tex] then we will get initial temperature. That is [tex]T_0=70+20=90[/tex].

The temperature will cools down [tex]70(0.8)^{10}+20=27.52(approx)[/tex].

So the final temperature after 10 minutes will be :[tex]90-27.52=62.48(approx)[/tex].

Final Answer: The temperature is 62.48 degree Celsius.

Hey guys i need your help please

Answers

The matrix after the row operation is:

[tex]\left[\begin{array}{ccc}1&4/9&-1\\-43&-19&44\end{array}\right][/tex]

We have,

We use the operation R1 → R1/9.

This will give us,

Row 1 values will change to 9/9, 4/9, -9/9

So,

1, 4/9, -1

Now,

[tex]\left[\begin{array}{ccc}1&4/9&-1\\-43&-19&44\end{array}\right][/tex]

Thus,

The matrix after the row operation is:

[tex]\left[\begin{array}{ccc}1&4/9&-1\\-43&-19&44\end{array}\right][/tex]

Learn more about matrix here:

https://brainly.com/question/28180105

#SPJ1

What measurement is equivalent to 1 2 3 1 2 3 yards?

Answers

1 ⅔ yards = 5 feet
Answer: A. 5 feet

if 1 cm is 20 km then how many km equals 9 cm

Answers

The new length would be 180 km

Find the value of x if log6 36 = x

Answers

Answer:

The answer for x is 2

Step-by-step explanation:

write the equation

log6(36)= x

rewrite the equation as, x = log6(36) [ formula used; logb x=y; x=y^b]

so, x^6=36

     x^6=2^6[ 36=2^6=2*2*2*2*2*2]

thus, x=2

internal link

https://brainly.com/question/4075540

Which components are a possible representation of vector u if ||-4u|| ≈ 14.42?

Answer: <3, -2>

Answers

One possible representation of such a vector is u = (3, 2), which has a magnitude of approximately 3.605 and makes an angle of about 33.69 degrees with the positive x-axis in the standard Cartesian coordinate system.

Firstly, it is important to understand the meaning of the double vertical bars (|| ||), which denote the magnitude or length of a vector. For instance, if we have a vector

=> v = (2, 3),

then its magnitude can be computed as

=>  ||v|| = √(2² + 3²) = √13.

Similarly, if we have a vector u = (u₁, u₂), then its magnitude can be expressed as

=>  ||u|| = √(u₁² + u₂²).

The given condition

=> ||-4u|| ≈ 14.42

can be rewritten as

=>  4||u|| ≈ 14.42

=>  ||u|| ≈ 3.605.

This means that the magnitude of vector u is approximately equal to 3.605.

Therefore, to obtain a possible representation of vector u with a magnitude of approximately 3.605, we can solve the following system of equations:

||u|| = √(u₁² + u₂²) ≈ 3.605

θ = tan⁻¹(u₂/u₁)

Note that there are infinitely many solutions to this system, since the direction of u is not uniquely determined.

However, one possible solution is u = (3, 2), which has a magnitude of

=> ||u|| = √(3² + 2²) = √13 ≈ 3.605

and makes an angle of

=> θ = tan⁻¹(2/3) ≈ 33.69 degrees

with the positive x-axis.

To know more about vector here

https://brainly.com/question/29740341

#SPJ1

Probability Digital Escape! puzzle 3 answer

Answers

Probability of landing on space with polka dots = 3/8.

Probability of landing on space with stripes = 1/2.

Probability of landing on space with stripes and even numbers = 1/4.

Probability of landing on space with stripes or even numbers = 5/8.

Hence the code is 'AFCH'.

From the definition of Probability we know that,

Probability of event = (Number of Favorable outcomes)/(Total number of outcomes)

Here total number of spaces = 8.

Number of space with polka dots = 3 [space numbered 1, 4, 6]

Number of space with stripes = 4 [space numbered 0, 2, 3, 5, 7]

Number of space with stripes and even numbers = 2 [the space numbered 0 and 2]

Probability of landing on space with polka dots = 3/8 (A)

Probability of landing on space with stripes = 4/8 = 1/2 (F)

Probability of landing on space with stripes and even numbers = 2/8 = 1/4 (C)

So, Probability of landing on space with stripes or even numbers

= Probability of landing on space with polka dots + Probability of landing on space with stripes - Probability of landing on space with stripes and even numbers

= 3/8 + 1/2 - 1/4

= (3 + 4 - 2)/8

= 5/8 (H).

Hence the code will be 'AFCH'.

To know more about Probability here

https://brainly.com/question/251701

#SPJ1

what is 1,908,890,556 times 1,092,847

Answers

Answer: 2.1468 times 10^15

Step-by-step explanation: you times them together

A dilation is a transformation in which the _____, but not the shape, of a geometric figure is changed.

Answers

size.
no explanation really
like dilation 2x, 2y makes the size bigger but the shapes rhe same

-
Which of the following is equivalent to 2.76?

Answers

The expression that is equivalent to 2.76 is two and nineteen twenty fifths

Which of the expressions is equivalent to 2.76?

The number in the question is given as 2.76

This means that we have

Number = 2.76

We can rewrite this as a mixed number.

2 + a/b

Such that:

a/b = 0.76

From the list of options, we have

two and nineteen twenty fifths = 2 + 19/25 = 2.76

This means that the correct expression is two and nineteen twenty fifths

Hence, the expression that is equivalent to 2.76 is two and nineteen twenty fifths

Learn more about mixed numbers:

brainly.com/question/1746829

#SPJ1

Complete question

Which of the following is equivalent to 2.76?

2.76%

27.6%

two and nineteen twenty fifths

twenty five over nineteen

Solve for x.
10 cm
X
8 cm
X = = [?]°
Round to the nearest hundredth.

Answers

The value of the variable x is 51.340 degrees

How to determine the value

Note that their are six different trigonometric identities in mathematics.

These identities are;

sinecosinetangentcotangentsecantcosecant

Also, these identities have their different ratios, they are;

sin θ= opposite/hypotenuse

tan θ = opposite/adjacent

cos θ = adjacent/hypotenuse

From the information given, we have that;

Opposite = 10cm

Adjacent = 8cm

Substitute the values

tan x = 10/8

Divide the value, we have;

tan x = 1.25

Find the tangent inverse, we get;

x = 51. 340 degrees

Learn more about trigonometric identities at: https://brainly.com/question/7331447

#SPJ1

The perimeter of the pentagon below is 64 units. Find the length of side AB

Answers

Step-by-step explanation:

If this is a regular pentagon , it has FIVE sides of equal length

 64 ÷ 5 = 12.8 units = AB

Calculate the price of a zero-coupon bond that matures in five years if the market interest rate is 7.50 percent. (Assume semiannual
compounding and $1,000 par value.)
Multiple Choice

Answers

Based on the information given, the price of the zero coupon bond is $692.04.

How to solve

To calculate the price of a zero coupon bond, we need to use the following formula:

[tex]\sf P =\dfrac{F}{1+r\div n}^{(nt)[/tex]

Where:

P = price of the bondF = face value of the bondr = annual interest raten = number of compounding periods per yeart = time to maturity in years

Also, the annual interest rate is 7.50%, which is the market interest rate, and the compounding is semiannual, which means n = 2. Finally, the time to maturity is 5 years.

Plugging in the values into the formula, we get:

[tex]\sf P = \dfrac{1000}{(1+0.075\div2)^{(2\times5)}}[/tex]

[tex]\sf P = \dfrac{1000}{(1.0375)^{10}}[/tex]

[tex]\sf P = \dfrac{1000}{1.4450}[/tex]

[tex]\sf P = \$692.04 \ \ (rounded \ to \ the \ nearest \ cent)[/tex]

Therefore, the price of the zero coupon bond is $692.04.

Read more about bond price here:

brainly.com/question/29343820

Please help me please 5th grade math

Answers

The length of the given rectangular cuboid is: 9 cm

How to find the volume of the rectangular prism?

In geometry, a rectangular prism is defined as a polyhedron with two congruent as well as parallel bases. It is also referred to as a cuboid. A rectangular prism is one that possesses six faces, and then all the faces are located in a rectangle shape and possess twelve edges. Whenever its cross-section along the length, it is referred to as a prism.

The formula for the volume of a prism is given by the formula:

V = L * W * H

Where:

L is length

W is width

H is height

We have that Volume = 432 cm³

Thus:

6 * L * 8 = 432

48L = 432

L = 432/48

L = 9 cm

Read more about Volume of Prism at: https://brainly.com/question/23766958

#SPJ1

Find the height of the tower using the information given in the illustration.

Answers

using SOH CAH TOA

Tan 85.144 =h/130

h=tan 85.144*130

h=1530.19 fr

HELP PLEASE! Which reason is the justification for the statement that angle A ≅ angle B?
A) Vertical angles are congruent.
B) Linear angles are equal.
C) Intersecting lines form opposing angles.
D) Lines intersect at one point.

Answers

A) Vertical angles are congruent

20 points PLS HELPP marking as BRAINLIST

Answers

Answer:

25% probability

Step-by-step explanation:

2x2=4

1x1=1

1 out 4 is shaded red

1 out of 4 is 1/4 which is 25%

The net below shows a square pyramid. What is the lateral surface area?

Answers

The lateral surface area of the pyramid is 112 sq. in.

The correct answer is an option (B)

From the attached figure of the net of a square pyramid, we can observe that the side length of the square base is 8 in and height of the lateral triangular face is 7 in.

The lateral surface area of the pyramid is equal to the area of the four triangular faces of the pyramid.

Using the formula of the area of triangle, the lateral surface area would be,

A = 4 × (1/2 × base × height)

A = 4 × (1/2 × 8 × 7)

A = 4 × (4 × 7)

A = 4 × 28

A = 112 sq. in.

This is the required lateral surface area.

The correct answer is an option (B) 112 in²

Learn more about the surface area here:

https://brainly.com/question/18727714

#SPJ1

Find the complete question below.

The net below shows a square pyramid. What is the lateral surface area? A. 176 in^2

B. 112 in^2

C. 64 in^2

D. 210 in^2

Can someone help me

Answers

Answer:

Y = -½x + 3/2

Y = -3x + 5

Y = 1/4x - 3¼

Step-by-step explanation:

Parallel implies they have the same gradient

Perpendicular implies the gradient is a negative reciprocal of the other.

Emily's score for a Mathematics test was 5% higher than her score for an English test. If Emily scored 84 points for the Mathematics test, how many points did she score for the English test?

Answers

Answer:

80 points

Step-by-step explanation:

If score in English is x points and score in math is 5% higher then score in math

y = x + 0.05x

where 0.05 = 5% expressed as decimal

0.05x refers to the 5% increase in score

y = math score

y = x(1 + 0.05)

y = 1.05x

Given score in math = 84 this becomes

84 = 1.05x

x = 84/1.05

x = 80

So Emily's score in English was 80 points

Hi school basketball team is selling donuts to raise money for their new uniforms. The team makes a goal to sell at least $1000 in donuts. They are selling half a dozen box of donuts for eight dollars and a full dozen box of donuts for $12. They write the inequality 8x+12y>_ 1000 to determine how many boxes they need to sell, where X is the number of half dozen boxes, and why is the number for dozen boxes they sell. Which of the following solutions are viable in terms of the given context? Select all that apply A. (0,83) B. (32,70) C. (60,50) D. (14,74) E. (6,100) F.(-50,150)

Answers

The team can sell 50 half dozen boxes and 50 full dozen boxes to raise at least $1000.

We can derive an inequality from the problem statement which is:

8X + 12Y ≥ 1000

This inequality represents the amount of money the basketball team needs to raise by selling donuts.

X is the number of half dozen boxes sold

Y is the number of full dozen boxes sold.

To find a solution in terms of the given context, we can plug in different values for X and Y that satisfy the inequality. For example:

If the team sells 50 half dozen boxes and 50 full dozen boxes, they will make:

8(50) + 12(50) = $400 + $600 = $1000

So this is a valid solution that meets the fundraising goal.

If the team sells 100 half dozen boxes and 0 full dozen boxes, they will make:

8(100) + 12(0) = $800

This is not enough to meet the fundraising goal, so it is not a valid solution.

If the team sells 0 half dozen boxes and 100 full dozen boxes, they will make:

8(0) + 12(100) = $1200

This is more than the fundraising goal, so it is a valid solution, but the team may not want to sell so many full dozen boxes.

Therefore, one solution in terms of the given context is that the team can sell 50 half dozen boxes and 50 full dozen boxes to raise at least $1000.

Learn more about Word Problem here:

brainly.com/question/21405634

#SPJ1

A dentist office is getting ready to order toothbrushes to give to their patients after checkups. The toothbrush company charges a base cost of $48 to have the dentist's name and address printed on the toothbrushes, regardless of how many are ordered. Each toothbrush will cost $2.58 if the dentist office orders less than 50 toothbrushes. However, if the dentist orders 50 or more toothbrushes, then each toothbrush will only cost $1.24. If the dentist budgets $110 for the order, what is the maximum number of toothbrushes they can purchase?

Answers

The maximum number of toothbrushes the dentist can purchase is 50.

Let's denote the number of toothbrushes the dentist orders by "x".

If the dentist orders less than 50 toothbrushes, then the cost of the toothbrushes will be 2.58x.

If the dentist orders 50 or more toothbrushes, then the cost of the toothbrushes will be 1.24x.

There is a base cost of [tex]$48[/tex] for printing the dentist's name and address on the toothbrushes.

The total cost of the order can be expressed as:

Total cost = 48 + (2.58x) for x < 50

Total cost = 48 + (1.24x) for x ≥ 50

The maximum number of toothbrushes the dentist can purchase, given that the budget is [tex]$110[/tex].

So we can set up an equation:

Total cost = 110

For x < 50:

48 + 2.58x = 110

2.58x = 62

x ≈ 24.03

For x ≥ 50:

48 + 1.24x = 110

1.24x = 62

x ≈ 50

The maximize number of toothbrushes, we choose the larger value of x, which is x ≈ 50.

For similar questions on maximum number

https://brainly.com/question/10710671

#SPJ11

A GROUP OF 6 ADULTS PAY A TOTAL OF $105 FOR THEIR ADMISSION TO A MUSEUM. EACH PERSON HAS A COUPON FOR $5 OFF THE REGULAR ADMISSION PRICE. THEY WANT TO KNOW WHAT THE REGULAR ADMISSION PRICE IS FOR ONE ADULT.

LET A EQUAL THE REGULAR ADMISSION PRICE. WRITE AN EQUATION THAT REPRESENTS THE SITUATION

Answers

The regular admission price for one adult is $17.50.

We have,

Let's first determine the total cost of admission after the coupons have been applied.

Since each person has a coupon for $5 off, the total discount for the group is $5 x 6 = $30.

The total cost of admission after the discount.

$105 - $30

= $75.

Let A be the regular admission price.

Since each person paid the same price after the discount, we can set up the following equation:

6(A - $5) = $75

We subtract $5 from the regular price A because that is the amount of the coupon discount.

We can simplify the equation as follows:

6A - $30 = $75

6A = $105

A = $17.50

Therefore,

The regular admission price for one adult is $17.50.

Learn more about equations here:

https://brainly.com/question/17194269

#SPJ1

not typing itttt cause yes :)

Answers

The value of x in the quadrilateral is 70 degrees

To find the value of the fourth interior angle, we can use the fact that the sum of all four interior angles is equal to 360 degrees. We can set up an equation:

85 + 150 + 55 + x = 360

where x is the fourth interior angle we want to find. To solve for x, we can first simplify the left side of the equation by adding the known angles:

290 + x = 360

Then, we can isolate x by subtracting 290 from both sides:

x = 360 - 290

x = 70

Therefore, the value of x when the interior angles of the quadrilateral are 85, 150, and 55 degrees is 70 degrees. This means that the four interior angles of the quadrilateral are 85, 150, 55, and 70 degrees, and their sum is indeed equal to 360 degrees.

To know more about quadrilateral here

https://brainly.com/question/29934440

#SPJ1

an elephant skeleton has about
345 bones. at Birth a human skeleton has about 3/5 x 345 bones which has more bones an elephant or a human? explain.

Answers

Answer: elephant

Step-by-step explanation:

3/5 x 345 = 207

345 > 207


12. ABC-A'B'C' is a reflection. Use this to answer the questions below.

(A) Which figure is the preimage?

(B) Which figure is the images



(C) What are the coordinates of the output?
Input. Output

A(0,9). A

B(-4,4) B

C(0,4). C

Answers

(A) The preimage is ABC.

(B) The image is A'B'C'.

(C) The coordinates of the output are:

A(0,9) reflects over the line of reflection to A'(0,-9).

B(-4,4) reflects over the line of reflection to B'(4,-4).

C(0,4) reflects over the line of reflection to C'(0,-4).

In geometry, a reflection is a type of transformation where a figure is flipped over a line, called the line of reflection. In this problem, ABC-A'B'C' is a reflection, which means that it is a transformation of a figure where each point of the original figure has a corresponding point in the reflected figure such that the line of reflection is the perpendicular bisector of the line segment joining each point to its corresponding point.

A) The preimage is the original figure, which is ABC.

B) The image is the reflected figure, which is A'B'C'.

C) The coordinates of the output are:

A(0,9) reflects over the line of reflection to A'(0,-9).

B(-4,4) reflects over the line of reflection to B'(4,-4).

C(0,4) reflects over the line of reflection to C'(0,-4).

Learn more about Preimage at

brainly.com/question/27962956

#SPJ1

Other Questions
What is the simplest fraction Kieran could be thinking of? My fraction is larger than 0.2 but smaller than 0.4 and when I convert my fraction to a decimal it has one decimal place. Which condition sometimes results in development of a "buffalo hump" and "moon face"?1. Cushing syndrome2. Endemic goiter3. Pheochromocytoma4. Hyperparathyroidism Write a program in java that can calculate the invoice for a client and then print out an invoice to the screen.The consulting rate is $200 per hour.The program should have the following options:1. Add Client2. Create Invoice3. QuitIf the first option is selected the consultant will enter the clients name, id #, address and number of hours worked.If the second option is selected the consultant will be asked for a client's ID #. If the client exists then an invoice will be displayed to the screen that shows the client's Id#, address, name, the number of hours worked, the consulting rate, and the total amount of the bill. Also, include a tax rate of 8%. If the client does not exist then display a message to the screen telling the consultant that the client must be added before an invoice can be created for the client.The consultant should be able to add multiple clients and create multiple invoices before quitting the program.You will need a client class and an invoice class. Identify the attributes needed for the client class and the invoice class. The program must have accessor, mutator methods, and constructors. The invoice class will need to calculate the total price for the hours worked, the amount of tax owed, and return the total invoiceIn case 1 and 2 how do i get it so that case 1 saves the clients information; so when i go to case 2 and enter the clients correct ID the corresponding information will show up? I believe i need to use an Arraylist but im confused as to how to put it in the correct order. Also do i need 2 array objects for Strings and Ints? the nurse is taking a client history. with which client is direct eye contact appropriate? Because of ____ commerce sites, anyone can become a merchant online. a. B2B b. B2C c. C2C d. G2B PART B: Which TWO phrases from the paragraph best support the answer to Part A?A. "rather stout than otherwise"B. "not pious"C. "anxious on Jim's account"D. "always spanked"E. "never kissed"F. "on the contrary"G. "ready to leave him" tom and jerry entered into a contract whereby tom agreed to sell jerry $1,000 worth of heroin, an illegal substance. this is an example of a: a. quasi contract. b. void contract. c. voidable contract. d. secondary party beneficiary contract What type of management system below can help distribute and manage public and corporate apps? A. Extended Device Management B. Mobile Device Management C. Wireless Device Management D. Total Device Management (T/F) prior to the seven years war, britain had not tried to regulate the colonies economy. what kind of wifi connection should you have for telework? (select all that apply) Which statement describes why pits and fissures are more susceptible to decay than smooth surfaces?A. They do not benefit from the effects of fluoride.B. The enamel at the base of fissures is thinner.C. Saliva cannot clean deep pits and fissures.D. All of the above are reasons pits and fissures are susceptible. ______ consists of rom chips or flash memory chips that store permanent instructions. a. Memware b. Chipware c. Firmware d. Dataware what expressions are equivalent to 11 to the power of 4 Meiosis Il is completed to form a haploid ovum in which of the following ovarian follicles? a. Graafian, mature follicle b. Primordial follicle c. Secondary follicle d. Corpus Luteum e. Primary Follicle f. None of the above During the sintering stage, the volume of the green compact will shrink if the sintering mechanism is dominated by solid-phase material transport.True or False Which of the following would be a firm's social responsibility when operating in a global market?A. Strong economic gainB. Effective foreign relationsC. Safe working environmentD. Adherence to home lawsE. Flexible ethical standards .Which of the following has been used specifically as part of a protocol to improve balance?Select one:a. Stable floor environment b. Weight trainingc. Biomechanical ankle platform systemd. Aqua therapy (T/F) although infrequent, running water is responsible for most of the erosional work in deserts. true or false: supply-side economics is a short-run, countercyclical strategy. The elevator described in the previous question travels at an average velocity of +5 m/s for 10 seconds and then -8 m/s for 5 seconds. Determine the elevator's displacement.