Mathematics Middle School

Factor completely
Solve: [tex]x^{3} + 2x^{2} - 9x - 18[/tex]

please do:
step-by-step-explanation
Answer

Answers

Answer 1

Answer:

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

Step-by-step explanation:

x^3 + 2x^2 - 9x -18

= x^2(x+2) - 9(x+2)

= (x^2 - 9) (x+2)

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

Answer 2

Answer:

hope this helps:))))))

Factor CompletelySolve: [tex]x^{3} + 2x^{2} - 9x - 18[/tex]please Do:step-by-step-explanationAnswer

Related Questions

Select the correct answer.

What is the area of rectangle PQRS?




A.

20.25 square inches

B.

21.375 square inches

C.

27.00 square inches

D.

42.75 square inches

Answers

The answer to this question has to be D. 42.75 square inches.

HELP ASAP

Type the correct answer in each box. Spell all words correctly, and use numerals instead of words for numbers. If necessary, use / for the fraction bar(s).

Karina is creating two pyramids with the nets below using construction paper. In both nets, all of the triangular faces of the pyramids have a height of 9 inches and a base of 6 inches. Compare the amount of construction paper needed to make each pyramid.







The triangular pyramid needs ?


square inches of construction paper to make.



The square pyramid needs ?


square inches of construction paper to make.



The ?


pyramid will need ?


square inches more construction paper to make than the other pyramid.

Answers

Answer:

A. 108 in^2

B. 144 in^2

C. 36 in^2

Step-by-step explanation:

*PLEASE help* *no explanation = report* *spam = report*
Youssef has $40 in his piggy bank and he spends $2 a day on a soft pretzel at lunch. Tiernan is selling his lunch each day at school to save up for an electric skateboard. After 3 days, he has a total of $22 and after 6 days he has a total of $34. In how many days will the two have the same amount of money?

Answers

Answer: 5 days

Explanation:
Tiernan
10 + 4d
10 + 4(5) = 30





Youssef
40 - 2d
40-2(3) = 34
40-2(4)= 32
40-2(5) = 30

They two shall have the same amount of $30 after 5 days

[Consider "d" is number of days, "y" is total amount]

For Youssef:

Starting amount = $40Spending amount = $2

1) Equation created: y = 40 - 2d ____ eq(1)

For Tiernan:

3 days = $226 days = $34

Unit rate: (change in amount)/(change in day) = (34 -22)/(6-3) = $4

2) Equation created:

y - 22 = 4(d - 3)y = 4d - 12 + 22y = 4d + 10 ____eq(2)

For them to have same amount, solve simultaneously:

4d + 10 = 40 - 2d4d + 2d = 40 - 106d = 30d = 30/6 = 5 days

Amount after 5 days: 4(5) + 10 = $30

Choose all correct answer choices if u are right I will mark u as brainliest

Answers

Answer:

8q

Step-by-step explanation:

3q + 5q = 8q

q^8 = q^8

8q + q = 9q

I hope this helps!

Answer:

8q and 8q + q

Step-by-step explanation:

I just had this answer and I got it right and plus it’s teacher approved

help????????????????

Answers

x = 0 is a vertical line.

If a point is reflected across a vertical line, x-value becomes the distance from the reflection line and the sign changes most likely.

Thus if (-4,3) is reflected across a vertical line, its sign change and it becomes (4,3)

The answer is (-3,4) because mirrored give you -3 and then mirror the -4 and you get just 4

Dan swims 15 feet below water. Then he swims 11.5 feet up.

Answers

15-11.5=3.5
ANSWER=3.5

Item 3
What type of triangle is this triangle?

obtuse isosceles

obtuse scalene

acute isosceles

acute scalene

Answers

Obtuse scalene because the size
This is an obtuse scalene triangle! The sizing of it is how I figured it out:)

Consider the two functions below. How does the rate of change differ from two functions.​

Answers

Answer: Its b i got this correct

Step-by-step explanation:

Answer:

It's it B 100%

Step-by-step explanation:

A swimming pool holds 250,000 gallons of water and is being drained at 200 gallons per minute. How many gallons remain in the pool after 5 minutes than after 20 minutes?

Answers

Answer:

After 5 minutes, the pool will hold 249,00 gallons of water.

After 20 minutes, the pool will hold 246,000 gallons of water.

After 5 minutes the pool will have 249,000 gallons since 5x200=1000 and 250,000-1000=249,000.
After 20 minutes it will be at 246,000 gallons since 20x200=4000 and 250,000-4000= 246,000.
Hope this helps :)

An IMAX movie ticket cost $16. You have $50. Write an inequality to represent the number of IMAX movie tickets, t, you can buy.

Answers

Answer:

t > 3

Explantion

Finding the areas of different figues, five problems

Answers

Answer:

9. C 77.7ft^2

10. 492

Step-by-step explanation:

(96) - 15.6 - 2.6533

= 77.867

=77.7

Write an algebraic expression with the constant 7 and the variable 4.

Answers

Answer:

y = 4x + 7

Step-by-step explanation:

y = 4x + 7

7 is the constant and 4 is the coefficient

4x + 7. the coefficient is 7.

Solve

Make sure to enter your answer as an ordered pair. (x,y)

Answers

Answer:

(12, -23)

Step-by-step explanation:

Equate the equations:

y = y

⇒ -3x + 13 = -2x + 1

Add 3x to both sides:

⇒ -3x + 13 + 3x = -2x + 1 + 3x

⇒ 13 = 1 + x

Subtract 1 from both sides:

⇒ x = 12

Substitute x=12 into one of the equations to find y:

⇒ -2(12) + 1 = -23

Therefore, the ordered pair is (12, -23)

(X,y)=(12,-23)
All you had to do was solve for x first and once you found your answer plug it in for x and then solve for y

HELP PLEASE i need the answer

Answers

Answer:

The first one is x²= 4.5

The 2nd one is 2

The third one is 16

The fourth one is the last answer choice you have

Tell me if I'm wrong

Answer:

The first one is 3 or -3; x^2 = 9

The 2nd one is 2

The third one is 16

The fourth one is the last answer choice you have

Tell me if I'm wrong

Step-by-step explanation:

Solve the problem . (x – 2) = –14(x – 8)
1) x=0
2)x=--5 1/3
3)x=-3 1/5
4)x=3 1/5

Answers

Answer:

x=38/5

Step-by-step explanation:

distribute

Add 2 to both sides of the equation

Simplify

A monumental structure shaped like a triangular pyramid has a volume of 693 cubic meters. The area of the base of the structure is 132 square meters. Find the height of the structure.

Answers

Answer:

Use maths genie its rather helpful

Step-by-step explanation:

Use maths genie its rather helpful

find surface area answer asap

Answers

30 sq cm

Step-by-step explanation:

the base area of the figure is rectangle.

opposite sides are congruants.

Area of rectangle = (length) (breadth)

= (12) (2.5)

= 30 sq cm.

PLEASE MARK AS BRAINLIEST

Answer:

75.25cm²

Step-by-step explanation:

Area of triangle=1/2×h×b

=1/2×1.5×2.5

=1.875

1.875×2

=3.75cm²

Area of base=2.5×11

=27.5cm²

Area of sloping side=11×2

=22

=22×2

=44cm²

Surface area =44+27.5+3.75

=75.25cm²

hope it is correct.

Deon's chocolate bar is 72% cocoa. If the weight of the chocolate bar is 73 grams, how many grams of cocoa does it contain? Round your answer to the nearest tenth.

Answers

Answer: 52.6 grams of cocoa

Step-by-step explanation:

Facts:

the chocolate bar is 72% cocoa

it weighs 73 grams (g)

Cocoa (in grams)= ?

Step 1: Find 72% of 73

72% of 73= 52.56

Step 2: Round to the nearest tenth

52.56

56-> 60

52.6

72% of 73 grams is 52.56
Meaning we have 52.56 grams of cocoa
If we round to the nearest 10th it’s 50 grams of coca
Hope that helps :)

Congruency
a. Show that the two triangles are congruent.
b. State the other equal pairs of angles and sides.

Answers

Answer:

a.)They are oppositely congruent

Step-by-step explanation:

This is because when they are oppositely fitted they match

What is the volume of this rectangular prism? 14.04 cubic yards 7.24 cubic yards 17.25 cubic yards 18.2 cubic yards​

Answers

2,272.998 cubic yds
l•w•h
7.24x17.25x18.2= 2,272.998

Answer:

Description: 31912.8919

Image: 14.04

Step-by-step explanation:

The answer to you description:

14.04 x 7.24 x 17.25 x 18.20 = 31912.8919

The answer to the Image:

2.40 x 2.50 x 2.34 = 14.04

A bacteria population is 10,000 when it first measured and then doubles each day

Answers

Keep adding by the same value everytime so start with 10,000 then add 20,000 etc

4. the question is in the picture below:

Answers

Answer:

NOT equivalent to -5/8, NOT equivalent to -5/8, equivalent to -5/8

Step-by-step explanation:

5/8 is NOT equivalent to -5/8

-8/5 is NOT equivalent to -5/8

-5/8 is equivalent to -5/8

I gave a picture of how your answer should be

Hope this helps :)

what is the area of a quadrilateral a right-angled triangle placed over an inverted equilateral triangle with length of 6 ft the length of the perpendicular side is the length of the perpendicular from the vertex of equilateral triangle

Answers

Answer:

To find the height we divide the triangle into two special 30 - 60 - 90 right triangles by drawing a line from one corner to the center of the opposite side.

Step-by-step explanation:

Does the following relation represent a function, explain​

Answers

Answer:

No.

Step-by-step explanation:

In a function, two points CANNOT be directly above each other. In this case, (1,3) and (1,-2) are above each other.

For this question I would say No. The reason why is because you can tell in the picture of the points can’t be like above one another.

Even if the U.S. decides to remain neutral in an international conflict, after hostilities end the Peace Corps may become involved in order to help, for example,

create a new government
develop agricultural areas
create treaties between enemies
train ambassadors

Answers

Answer:

I'd assume create a new government since we stayed after ww2 to rebuild half of germany

how do you solve the inequality 2s + 5 > 49

Answers

Step-by-step explanation:

2s +5>49

2s >49-5

2s>44

S>44÷2

S>22

Answer:

[tex]s > 22[/tex]

Step-by-step explanation:

[tex]2s + 5 > 49[/tex]

[tex]2s+5-5 > 49-5[/tex]

[tex]2s > 44[/tex]

[tex]\cfrac{2s}{2} > \cfrac{44}{2}[/tex]

[tex]s > 22[/tex]

~

Help please i need the answers ASAP

Answers

#1: 29

#2: 76

Hope this helps !! <33

can you solve this for meh *^*

Answers

22 + 3 = 25


t = 25

25 - 22 = 3

Choose ALL the isosceles triangles.

Answers

Answer:

2 side equal triangle is called isocles triangle

It is the one on the top far left, top far right and the bottom middle

I need help i don't get it

Answers

Answer:

(5,-3)

Step-by-step explanation:

if you go from point A to point M, you go right 5 units and up 0.5 units. So if you do the same thing from point M and go right 5 units and up 0.5 units, you get (5,-3)

hope this helped! :)

(5,-3) because the midpoint means middle
Other Questions
Evaluate the expression A researcher collated data on americans leisure time activities. she found the mean number of hours spent watching television each weekday to be 2.7 hours with a standard deviation of 0.2 hours. jonathan believes that his football team buddies watch less television than the average american. he gathered data from 40 football teammates and found the mean to be 2.3. which of the following are the correct null and alternate hypotheses? h0: mu = 2.7; ha: mu less-than 2.7 h0: mu not-equals 2.7; ha: mu = 2.3 h0: mu = 2.7; ha: mu not-equals 2.7 h0: mu = 2.7; ha: mu greater-than-or-equal-to 2.3 6. Find the volume of the cone. Use 3.14 for pl and round your answer to the nearest tenth11 miD5 mi287.8 mi869.2 miO 1,899.7 mi57.6 mi in how many ways can 8 people line up for movie tickets Question 9 of 10Which three plates touch the South American plate? **Compare a water molecule, H2O, to a carbon dioxide molecule, CO2.**Which statement is true?They are made from the same types of atoms combined in the same way.They are made from different types of atoms, combined in the same way.They are made from the same types of atoms, but combine in different ways.They are made from different types of atoms, combined in different ways. Determine the magnitude and direction of vector V2 such that V=2V1 + V2 acts along the positive z-axis having a magnitude of 20 from which vector V = 20i- 15j + 15k. What is the current temperature in Fahrenheit on the thermometer below? A. B. C. D. What is a good hook for a research paper about Japanese internment camps no links or files I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS MATH QUESTION RIGHT change into past V2 following verb eat 1. How much cash is received from sales to customers for year 2021? assume all the sales were made on credit basis. 2. What is the net increase or decrease in the cash account for year 2021? can u answer with steps? If the ratio a: b = 2 : 3, and b : c = 3 : 4. Find the ration a : cASAP How do you learn quantitative variables without getting confused so quick? Days when the Earths poles are tilted at the greatest angle away from or toward the Sun are called __________.A.equinoxesB.rotationsC.solsticesD.revolutions 1) Multiple the following and write the answer:7.065 good evening! Can someone please answer this, ill give you brainliest and your earning 50 points. Would be very appreciated. X3-Y3=28, X-Y=2, X2+XY+Y2= it is = 14 but how? can you guys help me on this? 10 of 15What is1/6 as a decimal?Give your answer rounded to 3 decimal places.