Solve each equation
1.0=x^2-7x-18

2. x^2 + 10x = 39

3. 0= x^2-10x+12


4. 2x^2+4x =0

5. 3x^2 -22 +7=0

show work​

Answers

Answer 1

Step-by-step explanation:

1.

[tex]0 = {x}^{2} - 7x - 18 \\ 0 = {x}^{2} + 2x - 9x - 18 \\ 0 = x(x + 2) - 9(x + 2) \\ 0 = (x + 2)(x - 9) \\ \\ \\ (x + 2) = 0 \: \: \: \: or \: \: \: \: (x - 9) = 0 \\ \\if \: \:x + 2 = 0 \\x = 0 - 2 \\ x = (- 2) \\ \\ if \: \:x - 9 = 0 \\ x = 0 + 9 \\ x = 9 \\ [/tex]


Related Questions

What is quivalent to 5/8?

Answers

Answer:

10/16 is also equivalent

Answer:

0.625

Step-by-step explanation:

All you have to do is put it in decimal form.

Can you help me please

109% of 11

Answers

Answer:

11.99

Step-by-step explanation:

Can someone help me do this

Answers

Answer:

6

Step-by-step explanation:

Find the missing angle:

180⁰ - 82⁰ = 98⁰

Find the sum of the angles given without the missing angle:

180⁰ - 98⁰ = 82⁰

The sum of both the angles is 82⁰

Write an equation:

5x + 8 + 6x + 8 = 82⁰

Collect the like terms together

11x + 16⁰ = 82⁰

Subtract 16⁰ from both sides

11x = 66⁰

Divide by 11 on both sides

x = 6⁰

I need a full answer​

Answers

Answer:

D

Step-by-step explanation:

Main value = .4142

A. sqrt(3)-sqrt(2) = .3178

B. sqrt(3)+sqrt(2) = pi

C. sqrt(2)+1 = 2.4142

D. sqrt(2)-1 = .4142 <-

What is the distance between the points (−3, −5) and (−3, −7) ?




2 units

4 units

12 units

10 units

Answers

Step-by-step explanation:

d = √(x2-x1)²+(y2-y1)²

d = √(-3-(-3))²+(-7-(-5))²

d = √ 0+(-2)²

d = √4

d = 2 units

The ratio of boys to girls in math class is 3 to 5 if there are 9 boys how many girls are there

Answers

Answer:

15

Step-by-step explanation:

for every three boys there are five girls

3 groups of 3 boys

3*5=15 girls

find the slope of -3/5x-1

Answers

Slope is -3/5x in this equation

What is the average rate of change from x = 4 to x= 7

Answers

Three the answer is three

Which number line shows the solution to 6+ -6

Answers

Answer:

Is there any pictures to go with the question?

Step-by-step explanation:

Compare the values 4x107 is what times as much as 4x103

Answers

Answer:

[tex]10^{4}[/tex]

Step-by-step explanation:

4 x 10^7 is 40000000

4 x 10^3 is 4000

We are told that 4x10^7 is something times as much as 4x10^3

So we will work backwards to find the answer,

If you divide 40000000 by 4000 you will get 10000

10000 is the same as 10^4

Answer:

10^4

Step-by-step explanation:

10^7-3

Hahaha that's all

You can buy 5 cans for green beans at the Village Market for $2.70. You can buy 10
of the same cans of beans at Sam's Club for $6.50. Which place is the better buy?

Answers

Answer:

Village Market

Step-by-step explanation:

for this question we need to find the unit rate (the rate for one of something).

in this case, we need to find the cost of one can at each store so we can

easily compare the cost to see which one is cheaper

it would be (total cost)/(total number of cans)

Village Market = $2.7/5 = .54 cents per can

Sam's Club = $6.5/10 = .65 cents per can

Since Village Market has a cheaper price per can, it is the better buy.

Answer:

Village Market

Step-by-step explanation:

10 cans at the Village Market is = to $5.40.

But at Sam's Club 10 cans cost $6.50 witch is $1.10 more money your paying when u can save it.

HELP LIKE ASAP! YOU'LL GET BRAINLIEST IF YOU'RE CORRECT! :)

Answers

Answer:

V would be at (-4,5)

U would be at (-4,7)

T would be at (-9,7)

Answer:

V: (-4,5) U: (-4,7) T: (-9,7)

Step-by-step explanation:

reflect the shape across the x axis like a mirror

Hope this helps :)

eight hundred thirty four thousandths in decimal form:

Answers

0.834 here is the answer

The given number can be written as 0.834 in decimal form.

What is a decimal form?

"Decimals are the numbers, which consist of two parts namely, a whole number part and a fractional part separated by a decimal point."

Given number is eight hundred thirty four thousandth.

Here, thousandth is  represented as [tex]\frac{1}{1000}[/tex].

Therefore, in decimal form the given number can be written as

[tex]\frac{834}{1000} \\= 0.834[/tex]

Learn more about decimal form here:

https://brainly.com/question/229559

#SPJ2

Approximate the length of the diagonal of the rectangle to the nearest tenth. The sides are 10 and 18

Answers

Answer:

20.59

Step-by-step explanation:

Plz help me do this math problem !

Answers

Step-by-step explanation:

reason 1: given

reason 2: alternate interior angles

reason 3: alternate interior angles

reason 4: common (reflexive property)

reason 5: aas

please show work tyvm 4+3x6x(4-3³)²

Answers

Answer:

9526

Step-by-step explanation:

simplify 3^3+27

4+3*6(4-27)^2

simplify: 4-27+ -23

4+3*6(-23)^2

since the power of 2 is even it will be a positive

4+3*6*23^2

simplify: 23^2 to 529

4+3*6*529

simplify 3*6 to 18

4+18*529

then simplify 18*529 to 4+9522

and 4+9522= 9526

a square has a perimeter of 72 units. if its length measures 3y and its width measures 2x, what is the area of the square

Answers

Answer:

324

Step-by-step explanation:

square has 4 sides.

perimeter adds all sides to make 72

72/4=18 units each side

length * width =area of square

square has all sides equal, so 3y and 2x are tricks to confuse. All sides are 18.

18*18= 324

are the following triangles similar? if so state the reason.

not similar
SAS
SSS
AA​

Answers

The triangles are not similar.

What is similarity in triangles?

Two triangles are similar if they have the same ratio of corresponding sides and equal pair of corresponding angles.

The Given triangle ZXB and DZN are not similar

Because,

XZ/DZ =XB/DN ≠ ZB /BN

XZ/DZ = 1/2

XB/DN = 1/2

ZB /BN = 1/3

Hence, the triangles are not similar.

Learn more about this concept here:

https://brainly.com/question/12460919

#SPJ1

Should i redo a test even if i got a D ( which is passing), or should i Try again?

Answers

Answer:

Redo

Step-by-step explanation:

Answer:

Depends

Step-by-step explanation:

It depends if you can retake it and if you get a lower Grade. Like if you get a F do you keep the D or F

If ΔFGH ≅ ΔIJK, which segment is congruent to segment FG?

segment HF
segment JK
segment IJ
segment GH

Answers

I’m pretty sure it’s segment HF

Answer:

HF for shoo

Step-by-step explanation:

A real estate agent earns 6% of the selling price of each house he sells. If she sells a home for $250,000, how much of a commission will she make?

Answers

Answer:

$15,000 commission total revenue

Step-by-step explanation:

250000 x 0.06 = 15000

= $15,000

A. Levi decorates with a stamp foot long and į foot wide. What is the area of the stamp? 3 4 B. The work space in Lillian's room has a width of meter and an area of į square meter. How long is it? 3 3 C. Lauren jogs around a rectangular course with a length of mile and an area of į square mile. How wide is the course? D. Layton paints on a canvas that has a length of yard and an area of square yard. How wide is the canvas? ? 1​

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The statement representing the problem is :

Layton points on a canvas that has a length of 1/3 yard and an area of 3/4 square yard. How wide is the Canvas ?

D is the Correct choice ~

How do you get 60cm2 in question 1?

Answers

Answer:

Step-by-step explanation:

4*2=8, thats one rectangle (side)

8*2 is 16, thats TWO rectangles (sides)

7*4=28, thats one rectangle (front)

28*2=56, thats TWO rectangles (front and back)

7*2=14, thats one rectangle (top)

14*2=28, thats TWO rectangles (top and bottom)

add all of these surface areas together

TWO rectangles + TWO rectangles + TWO rectangles

28+56+16=100

As you can see, the 60cm2 is incorrect. 100cm2 is the real surface area of the shape

write vertically and solve step bye step 1.what is 0.24x3.12

Answers

Answer:

0.7488

Step-by-step explanation:

    0.24

×   3.12

_______

     0.48

    0.240

+   0.6200

________

     0.748 8

Answer this for likes and a crown

Answers

Answer:

The unit cost is 25 cents for 1 oz of cereal, because 4/16 = 1/4, convert to cents.

Hope this helps and have a nice day:)

Step-by-step explanation:

Answer:

Your answer should be the 3rd one.

Step-by-step explanation:

Allison and Lindsey each measured their bedrooms for new carpeting. They found
that both rooms were square, with the length of Lindsey's room 3 feet longer than
Allison's. If Lindsey needed 225 square feet of carpeting, how many square feet of
carpeting did Allison need?

Answers

Answer:

Step-by-step explanation:

Let's assume that the length of a side of Allison's room as x

So, Lindsey's room = x + 3

If Lindsey's room needs 225 sq. feet of carpeting, then   x + 3 = [tex]\sqrt{225}[/tex]

So, x + 3 = 15

Therefore, x = 15 - 3 = 12 ( So, Allison's room has a side of length 12)

Therefore, the carpeting needed = 12 × 12 = 12² = 144 sq. feet

There's your answer!

PLS HELP ASAP!

Masha bought red, green, and yellow balloons for a party. She bought 40 red balloons. The number of green balloons Masha bought is 3/5 of the number of red balloons. The number of green balloons is also 2/3 of the number of yellow balloons. while being inflated, 1/20 of the red balloons, 1/12 of the green balloons, and 1/36 of the yellows balloons popped. The remaining balloons were used as decoration. What part of all the balloons Masha purchased to decorate the party?

Answers

Answer:

95 balloons

Step-by-step explanation:

red = 40

green- 40x(3/5) = 24

yellow- 24÷(2/3) =36

36× (1/36) = 1. 1 yellow balloon popped

24× (1×12) = 2. 2 green balloons popped

40×(1/20) =2. 2 red balloons popped

40+24+36= 100

2+2+1=5

100-5 = 95 balloons left for decorations

What is the difference between a linear function and a non linear function?

Answers

Answer:

A difference is that a linear line is straight and a non linear is not

(-15x + 21y) divide by 3

Answers

Hey! Your answer to this would be -5x + 7y

A cab company charges $7 boarding fee in addition to its meter which is $4 for every mile. The equation of the line that represents this cab company's rate is:
a. y = 4x + 7
b. y = 7x + 4
c. y = 4x - 7
d. y = 4x + 6 ​

Answers

Answer:

A

Step-by-step explanation:

y=4x+7

Other Questions
Solve for the value of r. Who is Mario and Luigi A shop sells packs of black pens, packs of red pens and packs of green pens.There are2pens in each pack of black pens5 pens in each pack of red pens6 pens in each pack of green pensOn Monday,number of packsof black pens sold:number of packs of red pens sold: number of packs of green pens sold =7:3:4 A total of 212 pens were sold.Work out the number of green pens sold. Fill in the BlankValues..ArtifactsPrice of Goods.LanguageNormsAfrican TribeCommandTraditional Native Americans1 Socialism and Communism fit in which type of economy?2. What does supply and demand determines?3. What are the major elements of culture?4 What economy bases economic decisions on customs and beliefs?are real world examples Blue holes are caves that are (1) underwater / high up in the mountains. They were formed millions of years ago when (2) huge earthquakes happened / the land above them fell in and water entered the space. Blue holes are located on land or in the sea. Many of them are very deep and the water inside the holes is usually very (3) rough / calm. Although exploring blue holes is dangerous, many scientists still risk their lives to dive into them. They think that blue holes can tell us a lot about (4) ancient life forms / how the oceans were formed. What is the value of g(2) 4 + (8 + 4)3power -5 A sandwich store charges a delivery fee to bring lunch to an office building. One office pays 33$ for 4 turkey sandwiches. Another office pays 61$ for 8 turkey sandwiches. How much does each turkey sandwich cost? parafrasis del texto rinoceronte blanco 6 + blank = 4 what is the blank part Help please, it is easy but not for me. AM WILLING TO GIVE BRAINLIEST AND LOTS OF POINTSShanice's school made $850 by selling 125 tickets to the annual talent show. They sold adult tickets for $10 and student tickets cost $6. How many adult tickets did they sell? How many student tickets did they sell? (1) Write a system of equations to represent this situation. Define your variables.(2) Solve the system of equations algebraically using the elimination method.(3) Verify your solution by solving the system of equations algebraically using the substitution method.(4) Verify your solution by graphing the system of equations (I've attached the graph).(5) Interpret your solution to the system of equations in words. Raven is making pillows. Each pillow requires 3/5 yard of fabric. Raven has 6 yards of fabric. Use the number line to find 6 3/5, the number of pillows Raven can make. A: 10 pillows PLZ HELP ME MARK BARAINLIEST AND 150 POINTSB: 6 pillowsC: 5 pillowsD: 3 pillows jenn is studying a population of fish found in a pound Find the slope of the line graphed below!! Rewrite as a whole number.80/8 100 Points!Which Change over time in Landsat maps would most likely be associate with contaminated water habitats nearby? A. increased size of dark green areasB. increased size of gray areasC. green areas replaced with yellow areasD. Gray areas replace with light green areas aram is proficient in playing a number of instruments Graph by using the table of values Please help me with this homework