how to factor x^2 +x-2

Answers

Answer 1

Answer:

(x - 1) (x + 2)

Step-by-step explanation:

Use the AC method


Related Questions

0.77 in scientific notation

Answers

Answer:

7.7 x 10 ^-0.1

Step-by-step explanation:

you move the decimal till it is behind the the first number. making it a whole number.

hope this helps

Thomas the giant gorilla climbed to the top of a building 650 feet tall. He broke loose a statue and threw it down with an initial velocity of 50 feet per second. How long will it take for the statue to hit the ground ?

Answers

Answer:

13

Step-by-step explanation:

time=distance÷speed

time= 650÷50

Which of the following statements is false?

2 ≥ 8
2 ≤ 8
8 ≤ 8
2 < 8

Answers

Answer:

the top one

Step-by-step explanation:

The answer is A. 2 ≥ 8

What value of x is in the solution set of 9(2x+1) <9x-18?

Answers

Answer:

x = 0

Step-by-step explanation:

9(2x+1) < 9x - 18

Distribute the 9 through

18x + 9 < 9x - 18

Get like terms on the same sides

9x < -27

Divide both sides by the value in front of the x

x < -3

Hope this helps! :)

two decimals that are equivalent to (4 × 10) + ( 7 × 1/100)

Answers

Answer:

0.07 ibelive hope this helps

Step-by-step explanation:

Solve.

h + 14 = -14

h =

Answers

Answer:

h= -28

Step-by-step explanation:

h+14=-14 isolate h by subtracting 14 on both sides

h= -28

Answer:

h=-28

Step-by-step explanation:

k byeeeeeeeeeeeeee:)

Which of these sets of ordered pairs below does not represent a function?
{(1, 1) (2, 2) (3, 3) (4,4) (5,5)}
{(2, 1) (4, 2) (6, 3) (8, 1) (10, 2)}
{(0, 0) (2, 3) (3,6) (2.9) (6, 12}}
{(1,5) (2, 4) (3, 3) (4,2) (5, 1)]

Answers

Answer:

0,0

Step-by-step explanation:

The function set is empty

The ordered pair in options B and D does not  represents the  function.

The sets of ordered pairs {(1, 1) (2, 2) (3, 3) (4,4) (5,5)}, {(2, 1) (4, 2) (6, 3) (8, 1) (10, 2)}, {(0, 0) (2, 3) (3,6) (2.9) (6, 12)} and {(1,5) (2, 4) (3, 3) (4,2) (5, 1)}.

What is function?

A function is defined as a relation between a set of inputs having one output each.

For the given ordered pairs graphs are plotted below.

A) The ordered pair {(1, 1) (2, 2) (3, 3) (4,4) (5,5)} represents the linear function.

B) The ordered pair {(2, 1) (4, 2) (6, 3) (8, 1) (10, 2)} does not represents the  function.

C) The ordered pair {(0, 0) (2, 3) (3, 6) (2, 9) (6, 12)} does not represents the function.

D) The ordered pair {(1,5) (2, 4) (3, 3) (4,2) (5, 1)} represents the linear function.

Therefore, the ordered pair in options B and D does not  represents the  function.

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I NEED TO KNOW NOW IT'S DUE!!

Last summer, Fred earned 16 dollars per day, and Maria earned 18 dollars per day together, they earned 1780 dollars. If Fred worked 5 more days than Maria, how many days did Maria work?​

Answers

x = # of days Maria worked

x + 5 = # of days Fred worded

$16(x + 5) + $18x = $1780

Let's distribute the $16

$16x + $80 + $18x = $1780

Combine like terms

$34x + $80 = $1780

Subtract $80 from both sides.

$34x = $1700

Divide both sides by $34

x = 50 days

Maria worked 50 days

Find all numbers such that 18 plus 4 times the number is less than 30.

Answers

Answer:

The numbers are 2,1,0,-1,-2,..............etc

Step-by-step explanation:

This is actually a word problem

step one:

let the maximum number be  x  

18+4x<30

4x<30-18

4x<12

divide both sides by 4 we have

4x<12

x<3

step two:

From this analysis, we can see that all possible numbers are real numbers less than 3 that is 2,1,0,-1,-2,..............etc

Convert 1.76km into cm

Answers

Answer:

176000cm

Step-by-step explanation:

1.76km * 1000m / 1km * 100cm / 1m = 176000cm

Answer:

176000

Step-by-step explanation:

To convert km to cm, we need to multiply the number by 100000, which results in your answer.

can someone please help me .

Answers

The answer I got is r= -3.5

What is the scientific notation for 6.782 x 10-4

Answers

Answer:

that is already in scientific notation

Step-by-step explanation:

if you are asking for what's the actual number, then it's 0.000678

Match each equation to the situation it represents.
Situation
Equation
Kate buys 10 tickets to
a show. She also pays a $5 parking fee. She spent $35 to see the
show.
5x + 10 = 35
Ram has 35 gel pens. He gives an equal number of pens to each of his 5 friends and has
10 pens left for himself.
10x + 5 = 35
Yin spends 10 hours on homework this week. She spends 5 hours on science homework
and then answers 35 math problems.
353 +5 = 10
pls help someone

Answers

Answer:

See below.

Step-by-step explanation:

******************************************************************************

Kate buys 10 tickets to  a show. She also pays a $5 parking fee. She spent $35 to see the  show.

Each ticket costs x.

10 tickets cost 10x.

Parking is $5.

Total is $35

10x + 5 = 35

******************************************************************************

Ram has 35 gel pens. He gives an equal number of pens to each of his 5 friends and has  10 pens left for himself.

The number of pens he gives each friend is x.

The total number he gives is 5x.

He started with 35 pens ands ended up with 10 pens.

35 - 5x = 10

5x + 10 = 35

******************************************************************************

Yin spends 10 hours on homework this week. She spends 5 hours on science homework  and then answers 35 math problems.

Total time spent on homework is 10 hours.

Science homework is 5 hours.

She spends x time on each of the 35 problems, so the total time spent of the 35 problems is 35x.

35x + 5 = 10

Hi i just like kinda forgot what that line above the two numbers in 2.21 mean. Can you help me?​

Answers

Answer:

It means .21 never ends like 2.2121212121.....

Answer:

it means that what ever is under that line is repeating so it just keeps going ex. 2.212121212121212121212121212121...................   and never ends

hope this helps:)

Step-by-step explanation:

What is an equivalent fraction for 0.625

Answers

Answer:

5/8

Step-by-step explanation:

The answer is 5/8 because 1/8 is equivalent to 0.125, so just multiply 0.125 with 5. Then, you will get 0.625 as you answer.

Hope this helps!

The more time that I spend reading, the more pages I have read. Which variable is independent?

Answers

Answer:

The more time i spend reading

Step-by-step explanation:

The variable which causes a change to the variable which we intend to measure in an experiment is the independent variable, Hence, the independent variable is the amount of time spent reading.

The Independent variable in an experiment is also called the explanatory variable, which is used to tweak the value obtained for the dependent or measured variable.

In the scenario described, the measured variable is the number of book pages read which is determined by the number of time spent reading (independent variable.)

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Consider this Venn diagram of the prime factors of 210 and 330. Which is the least common multiple of these two numbers?

Answers

The least common multiple of these two numbers is 2310. Hope this helps

This table represents a proportional relationship. Use the table to identify the constant of proportionality between the ratio of the number of laps to the number of swimmers. A 2-column table with 4 rows. Column 1 is labeled Number of Swimmers with entries 20, 18, 14, 9. Column 2 is labeled Number of Laps with entries 240, 216, 168, 108.

Answers

Answer:

12

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Alguém poderia me ajudar nessa questão a print está aí

Answers

Can you put that in English

S, U, N are collinear. Select the point that satisfies the definition of betweenness if NU + US = NS.

Answers

Answer: Point U is between points N and S.

The order S, U, N shows U is in the middle. We can read this in reverse to get N, U, S.

Notice how the letter "U"s are adjacent in NU and US to get NU+US.

can someone pleaseee help me with explaination

2-3a / 4 >5

THE DASH IS FOR DIVISION SO 2- 3a OVER 4

Answers

Answer:

a < -4

I apologise if it is wrong.

An object is moving at a speed of 11 yards every 6 months. Express this speed in centimeters per hour. Round your answer to the nearest hundredth.

Answers

Answer:

its c

i took the quiz

Step-by-step explanation:

The speed in centimeters per hour is 0.2328 centimeters per hour.

Given,

An object is moving at a speed of 11 yards every 6 months.

We need to find this speed in centimeters per hour.

How many centimeters in one yard?

1 yard = 91.44 centimeters.

We have,

11 yards every 6 months

11 yard = 6 months

1 month = 30 days

1 day = 24 hours

30 days = 30 x 24 hours

30 days = 720 hours

1 month = 720 hours

6 months = 6 x 720 hours

6 months = 4320 hours

11 yards = 4320 hours

1 yard = 91.44 cm

11 x 91.44 cm = 4320 hours

1005.84 cm = 4320 hours

So,

we will find how many cm per hour.

if 1005.84 cm = 4320 hours then,

Dividing both sides by 4320.

1005.84/ 4320 cm = 4320/4320 hours

0.2328 cm = 1 hour

Rounding to the nearest hundredth.

0.23 cm = 1 hour

Thus the speed in centimeters per hour is 0.2328 centimeters per hour.

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What does the symbol "kg" represent in the metric system?

1,000 grams
100 liters
10 meters
1 degree Celsius

Answers

Answer:

1000 grams

Step-by-step explanation:

The symbol "kg" represents 1,000 grams in the metric system.

What is a metric system?

A system of measurements is called the metric system. It is employed in calculations and research across the globe. Here are some instances of measurements made with the metric system:

The unit used to measure lengths and distances is the meter. In daily life, we use this unit to measure things like the length of a piece of clothing, the distance from school to home, etc.

You may have noticed that the bag of your favorite food has a weight listed on it. 250 grams of potato chips, The unit of weight used here is the gram.

We know 1 kilogram is equal to 1×1000 grams.

Therefore, The symbol "kg" represents  1,000 grams in the metric system.

Similarly to convert gram to kg we have to divide by 100.

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Please 20 points like rn 5 mins left on test

Answers

Answer: counterclockwise rotation of 90° and a reflection over y axis

Step-by-step explanation:

help me please:(((( i’m struggling pretty bad

Answers

3 / (4/9)

First, let's multiply the top and bottom by 9 to get rid of the fraction in the denominator.

27 / 4 is the final answer.

Answer:

31/9

Step-by-step explanation:

3 4/9 as an improper fraction is 31/9.

We get our answer by multiplying the denominator of the mixed numbers by its whole number and adding that answer to its numerator. We get 31, and we put that over the denominator.

3 4/9

9x3=27

27+4=31

31/9

A craft store sells boxes of two different varieties of colored pencils. The table shows the number of boxes sold last month. What is the total dollar amount of colored pencils sold?

Answers

Answer:

So the answer is 108.75

Step-by-step explanation:

15 * $4.25 = 63.75

12*  $3.75 = 45

63.75 + 45 = 108.75.

Answer:108.75

The total dollar amount of coloured pencils sold is $108.75.

Given that, a craft store sells boxes of two different varieties of coloured pencils. The table shows the number of boxes sold last month.

We need to find what is the total dollar amount of coloured pencils sold.

What is the tally table?

A tally table is a table that represents the occurrence of an event in a way that calculates it becomes easy.

Now, the cost of each pencil is $4.25.

Then the cost of 15 pencils=15×4.25=$63.75

The cost of each pencil is $3.75.

Then the cost of 12 pencils=12×3.75=$45

Total=63.75+45=$108.75

Therefore, the total dollar amount of coloured pencils sold is $108.75.

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A national survey of middle-school students asks which subject is most challenging. Which of these samples is a representative sample? A. 372 sixth-graders in a certain town B. 972 seventh-graders in a certain county C. 619 eighth-graders in different states D. 400 students from various states, representing different grades, 6–8

Answers

The answer would be D, since a representative sample is a set chosen from a larger statistical population.

how do i solve this?

Answers

you divide -432 by -72 and so on you’ll get 6 so the patter or data is that it’s being divided by 6 each time.

Find the surface area of each solid to the nearest tenth if necessary

Answers

Where’s your question? Like ...the numbers

Solve the following problem. My bank account balance was $7676 and i withdrew amounts of $1369, $2618, and $937. What is my balance now?!??!

Answers

$7676 - $1369 = $6307
$6307 - $2618 = $3689
$3689 - $937 = $2752
There is $2,752 left in the bank account.
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