Factorise completely
X^2+7x-18​

Answers

Answer 1

Look at the screenshot below

Factorise Completely X^2+7x-18

Related Questions

Jude graphed the inequality s < -9,="" as="" shown.="">

A number line going from negative 12 to negative 4. A closed circle is at negative 9. Everything to the left of the circle is shaded.

Is his graph correct? Explain why or why not.

Answers

Answer:

Step-by-step explanation:

What does  ="as="shown.=">  mean?

No, his graph of s<-9 is incorrect. There should be an open circle at -9.

Answer:

sample response I would suggest rewording it

Step-by-step explanation:

No, Jude’s graph is incorrect. The inequality symbol is “less than,” so -9 is not included. He should have used an open circle on -9.

Evaluate the expression when x=4 and y+-6.

x-5y

Answers

Answer:-26

Step-by-step explanation:

The list of numbers 41, 35, 30, X, Y, 15 has a median of 25. The mode of the list of numbers is 15. To the nearest whole number, what is the mean od the list?

Answers

Answer:

1.2

Step-by-step explanation:

1.Arrange the numbers in order by size.

15,20,25,30,35,41

2.If there is an odd number of terms, the median is the center term.

with these numbers they are even (6 numbers total)

3.If there is an even number of terms, add the two middle terms and divide by 2.

30 ÷ 25=1.2

Billy has a set of wooden boards. Each board is 0.6 meters long. If Billy lays 4 boards end-to-end, how many meters long will the line of boards be?

Answers

Answer:

2. 4 meters long

Step-by-step explanation:

0. 6 times 4 equals 2. 4

What single percentage change is equivalent to a 11% increase followed by a 15% increase?​

Answers

Answer:

It's a total increase by 27,65%

Step-by-step explanation:

1,11 × 1,15 = 1,2765

1,2765 = +27,65%

Mrs.Kim wants to share the stickers equally with each of her students. there are 32 students in here class


100 points for this

Answers

Answer:

Ok... what's the question

Step-by-step explanation:

Answer:

anwser= 8 she will have 0 left

Step-by-step explanation:

each student gets 8 stickers

:)

pleaseeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer: A, scale factor is 3

Step-by-step explanation:

The correct answer is a

What is the common difference for this arithmetic sequence?
31, 48, 65, 82, ...

Answers

Answer:

d = 17

Step-by-step explanation:

The given arithmetic sequence is :

31, 48, 65, 82, ...

We need to find the common difference for this sequence.

First term, a₁ = 31

Second term, a₂ = 48

Common difference = a₂-a₁

= 48-31

= 17

So, the common difference for this arithmetic sequence is equal to 17.

1 hr=3.6 ×10^3 seconds
1 day =24 hrs
1 year =3.65 ×10^2days
use scientific notation to calculate the number of seconds in 3 days​

Answers

Answer:

1 Year = 8.76 x 10³ Hours

write and equivalent expression by combining like terms 12x+6y-3y+9​

Answers

Answer:

12x + 3y + 9

Step-by-step explanation:

Im not sure if you can add constants to variables so here is my simplified expression.

On which triangle can the law of cosines be applied once to find an unknown angle measure? Law of cosines: a2 = b2 + c2 – 2bccos(A) Triangle X W Y is shown. Angle X Y W is a right angle. The length of hypotenuse W X is y, the length of X Y is a, and the length of W Y is 9. Triangle W X Y is shown. Sides W X and X Y are congruent. The length of W Y is 7. Triangle W X Y is shown. Angle X Y W is 76 degrees. The length of X Y is 5, the length of W Y is 10, and the length of W X is y. Triangle W X Y is shown. The length of W X is 10, the length of X Y is 8, and the length of W Y is 16.

Answers

Answer:

C) Angle X Y W is 76 degrees. The length of X Y is 5, the length of W Y is 10, and the length of W X is y.

Step-by-step explanation:

On which triangle can the law of cosines be applied once to find an unknown angle measure?

The Law of cosines is given as:

a² = b² + c² - 2bccos(A)

From the options given above, the correct option is Option C

C) Angle X Y W is 76 degrees. The length of X Y is 5, the length of W Y is 10, and the length of W X is y.

This is because:

Law of Cosines helps us to find an unknown side of a triangle when we are given 2 known sides and 1 angle.

In the above question, we are given angle 76 degree, and the length of two sides: The length of X Y is 5, the length of W Y is 10

The unknown side is the length of W X which is represented as y.

Hence, Option C is the correct option.

Answer:

D

Step-by-step explanation:

I got it right on my program.

PLEASE HELP!!!!!
provide the value of the polynomial P(x)=8x2-9x+12 at x=-3.

Answers

Answer:

111

Step-by-step explanation:

Answer:

x3−8x2+19x−12 = (x−1)(x−3)(x−4)

Step-by-step explanation:

Welcome =D

Isabella earned $129.60 at her job when she worked for 6 hours. How much money
did she earn each hour?

Answers

Answer:

21.6

Step-by-step explanation:

you divide 129.60 by 6 and you get 21.6.

2.4= -5y + 14.9. Solve for y​

Answers


2.4=-5y+14.9

We move all terms to the left:

2.4-(-5y+14.9)=0

We get rid of parentheses

5y-14.9+2.4=0

We add all the numbers together, and all the variables

5y-12.5=0

We move all terms containing y to the left, all other terms to the right

5y=12.5

y=12.5/5

y=2+2.5/5

Y=2.5

solve for x
solve for x
solve for x

Answers

Answer:

x = 95

Step-by-step explanation:

(2x - 60)° = (x + 35)° (corresponding angles are congruent)

2x - 60 = x + 35

2x - 60 - x = x + 35 - x

x - 60 = 35

x - 60 + 60 = 35 + 60

x = 95

Answer:

x = 95

Step-by-step explanation:

At the sewing store, Mia bought a bag of mixed buttons. She got 490 large buttons and 210 small buttons. What percentage of the buttons were large?

Answers

S is what I think the answer is

Based on her recipe, Elena knows that 5 servings of granola have 1,750 calories. If she eats 2 servings of granola, how many calories does she eat? *

Answers

Answer:

5 / 1750 = 2 / x

5x = 3,500

x = 700

 

Step-by-step explanation:

Every two servings she eats, she eats 700 calories

Select three ratios that are equivalent to
11
:
1
11:1

Answers

Answer: To solve this problem you must apply the procedure shown below:

1. You have the following ratio given in the problem above:  

11:1

2. You can rewrite that ratio as below:

11/1=11

3. Then, to find three equivalent ratios, you only need to multiply the numerator (11) and the denominator (11) by the sam number. Therefore, you have:

11x2/1x2=22/2=11

11x3/1x3=33/3=11

11x4/1x4=44/4=11

Therefore, as you can see, the answer is:

22:2

33:3

44:4

But, comment your options if these aren't any. :)

Help me with my math **50 pts*** I mark brainliest**

Answers

Answer:

Sure. Now what do you need help on? Please post the question.

Step-by-step explanation:

Mr Harris had a piece of rope that measured 10 feet. He cut it into 15 equal pieces. How long was each piece?​

Answers

Answer:

I think that it is 8 inches

Step-by-step explanation:

I multiplied 10 times 12 because there is 12 inches in a foot. Then I divided 120 by 8.

I hope this is right

please help me please i really need help please

Answers

It is the last choice. 4 teams with a total of 24 players

Answer:

There are a total of 24 players and 4 teams.

Please let me have brainliest :)

What is the greatest common factor (GCF) of 24 and 42?

Answers

Answer:

6

Step-by-step explanation:

a train travels 16 miles in 20 minutes how many minutes would 12 miles be

Answers

Answer:Then 16x = 240, and x = 240/16 = 15. It will take 15 minutes to travel 12 miles.

Step-by-step explanation:

16 miles     =  12 miles

20 mins.        how many mins?

16    =   12       cross multiply       16? = 240   divide by 16     240 divided by 16 = 15 miles

20          ?                                                                                because 15 x 16 = 240

Answer:

It will take 15 minutes to travel 12 miles.

Step-by-step explanation:

Write and solve an equation of ratios:

16 miles     20 min

-----------  = -----------

12 miles          x

Then 16x = 240, and x = 240/16 = 15.  

Goran is participating in a 6-day cross-country biking challenge. He biked for 51, 65, 62, 46, and 62 miles on the first five
days. How many miles does he need to bike on the last day so that his average (mean) is 56 miles per day?

Answers

Answer:

i dont understand?

Step-by-step explanation:

What is 4 + 200039393939

Answers

Answer:

200039393943

Step-by-step explanation:

Use a calculator (;

what is x? (WILL GIVE BRAINLIEST) ​

Answers

Answer:

5

Step-by-step explanation:

Answer:

x = 5

Step-by-step explanation:

These are vertical angles, so both equal 51 degrees. To solve for x, solve the equation (9x + 6) = 51. 51 - 6 is 45. 45 divided by 9 is 5. So x = 5.

Hope it helps!

Use the Distributive Property to simplify the expression.
8(12+a)

Answers

[tex]\huge\boxed{\bf{Hi\:there!}}[/tex]

All we have to do to simplify this expression is multiply 8 by 12 and a:

8(12+a)

96+8a

That's our final answer.

[tex]\huge\boxed{\bold{Hope\:it\:helps!\:Good\:luck!}}[/tex]

[tex]\huge\mathfrak{LoveLastsAllEternity}[/tex]

The distributive property is defined as:

a x (b + c) = a x b + a x c

a x (b - c) = a x b - a x c

The final value of the expression 8 x (12 + a) after simplification using the distributive property is 96 + 8a.

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

8(12 + a)

We will apply the distributive property.

The distributive property is defined as:

a x (b + c) = a x b + a x c

a x (b - c) = a x b - a x c

Now,

8 x (12 + a ) is in the form of a x (b + c)

So,

8 x (12 + a)

= 8 x 12 + 8 x a

= 96 + 8a

Thus,

The final value of the expression 8 x (12 + a) after simplification using the distributive property is 96 + 8a.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ2

What is the inequality shown?

Answers

This type of graph is called a segment.

To write the solution set which represents the graph

of a segment, read the segment from left to right.

If you take a look at the segment shown here, we would start with the endpoint on the left which is a -4, our variable x would be in the middle, and we would finish things off with the endpoint on the right, which is 5.

Since we have an open dot at -4, we use a less than sign between the -4 and the x and since we have a closed dot at 5, we use a less tan or equal to sign between the x and the 5.

It's important to understand that when representing a segment by reading it from left to right, you will only use "less than" or "less than or equal to" between the parts, never "greater than" or "greater than or equal to."

So the solution for this graph is read {x: -4 < x ≤ 5}.

I NEED HELP HURRRRRRY

Answers

Answer:

D

Step-by-step explanation:

P=6 and Q=2

-3(6/2)=-9

3(-6/2)=-9

3*6/-2=-9

-6/-3*2=1

Solve the inequality: -3x - 22 > 23

Answers

Answer:x<-15

Step-by-step explanation:

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