Mathematics Middle School

I need some help have a good day bye

I Need Some Help Have A Good Day Bye

Answers

Answer 1

Answer:

(x−3)(x+5) is the factorised form of the expression.

Step-by-step explanation:

x2+2x−15

We can Split the Middle Term of this expression to factorise it.

In this technique, if we have to factorise an expression like ax2+bx+c, we need to think of 2 numbers such that:

N1⋅N2=a⋅c=1⋅(−15)=−15

AND

N1+N2=b=2

After trying out a few numbers we get N1=5 and N2=−3

5⋅(−3)=−15, and 5+(−3)=2

x2+2x−15=x2+5x−3x−15

=x(x+5)−3(x+5)

=(x−3)(x+5) .

(x−3)(x+5) is the factorised form of the expression.

Answer 2

Answer:

(x - 3) and (x + 5) is the factorize form of x² + 2x - 15

Step-by-step explanation:

[tex] {x}^{2} + 2x - 15[/tex]

[tex] {x}^{2} + 5x - 3x - 15[/tex]

[tex]x \times (x + 5) - 3(x + 5)[/tex]

[tex]\boxed{\green{(x + 5)(x - 3)}}[/tex]

Related Questions

PLEASE ANSWER THE QUESTION BELOW​

Answers

the answer would be B.
y=mx+c

“m” represents the gradient and “c” represents the y intercept

Answer: “A”

All of the following expressions simplify to -5x + 7, except ( x - 2) - (6 x - 9) (5 x + 1) - (-10 x + 6) -4 x + 2 x + 7 - 3 x (4 x + 3) + (-9 x + 4)

Answers

Answer:

(-4x+2)+(7-3x)

Step-by-step explanation:

it would give you -7x+9 I believe the others all equal -5x+7

Help please and thank you. :-)

Answers

Answer:

3/4 * 10 = 7 1/2

Step-by-step explanation:

To find the answer you just have to multiply the 3/4 yards needed per pillow by the number of pillows, which in this situation is 10.

10 because it would divide

A science experiment calls for mixing 3 and two-thirds cups of distilled water with 1 and three-fourths cups of vinegar and Two-thirds cups of liquid detergent. How much liquid in all, in cups, is needed?

Answers

Answer: 6 and 1/12 cups

Step-by-step explanation:

For this problem, we add 3 and 2/3 + 1 and 3/4 + 2/3. We can change these mixed numbers into improper fractions to make the math easier:

11/3 + 7/4 + 2/3

Next, we can add the 11/3 and 2/3 since they have the same denominator (bottom number). This gives us 13/3.

13/3 + 7/4

Now that we have two fractions, we just add them together. This leaves us with 6 and 1/2.

If you're having trouble with adding fractions with denominators that aren't the same, here are some videos (if you can't click the link, just copy and paste into the search bar):

https://youtu.be/bcCLKACsYJ0 -- Khan Academy

https://youtu.be/5juto2ze8Lg -- Math Antics

Find the slope of the 2 points (-2, -1) & (4, 5)

Explain too :))

Answers

Answer: hers your answer and steps

And the answer to you question you asked in the comments

Step-by-step explanation:

Help plzzzzzzzzzzzzzz

Answers

Answer:

Part A:

Answer B)

Part B: maybe acute, not totally sure, sorry :(

Step-by-step explanation:

i need help. and thank you if u are gonna help
6th grade level math

Answers

Answer:

C

Step-by-step explanation:

C is an example of the associative property

Brainliest pls!

It would be C or A I can choose between which but yeah I hope y’all have a good day

Can someone help me with this

Answers

Answer:

4/5

Step-by-step explanation:

4/5x20/20=80/100

80/100=80%

hope this helped! have a good day :)

Answer:4/5

Step-by-step explanation:4 divided by 5=.8=.80=80%

brainlyest plz

A jar contains 4 black, 5 white, 6 brown, and 8 yellow marbles. A marble is chosen at random from the jar. After replacing it, a second marble is chosen. What is the probability of choosing a brown and a yellow marble?

Answers

Answer:

A is the answer

Step-by-step explanation:

Answer:

It is A 48/529

I'm not sure about this one

Answers

Answer:

D

Step-by-step explanation:

V= 4/3[tex]\pi[/tex]r^3

V= 4/3[tex]\pi[/tex](9)^3

V= 3,052.08 in^3

you are correct!

D because that is the right answer

can i get some help pls???:´)

Answers

Answer:

the answer is 0.2 m/s^2, so the third one.

Step-by-step explanation:

A bag contains 3 red, 2 blue, 5 yellow, and 2 green marbles. What is the probability of choosing a red marble and then a blue marble

A. 5/23
B. 1/22
C. 5/21
D. 1/24

Answers

Answer: D. 1/24

Step-by-step explanation:

3+2+5+2=12 marbles total

Probability of choosing red marble is 3/12 and probability of choosing blue marble is 2/12

Multiply 3/12 * 2/12 = 6/144

Simplify to get 1/24 by dividing too and bottom by 6.

How do I solve this?
I put in the answer for 3 I put (-2·-6)+(-y·-2). And for 4 I put (-2·-6)-(-2·y) and it said I got it wrong. Can anybody help me?

Answers

1) -2 -6
2) -2 -y
3) -2 -6 + -y
4) -2 -6 -y

Answer:

1) -2 -6

2) -2 -y

3) -2 -6 + -y

4) -2 -6 -y

Step-by-step explanation:

There is no step by step explanation

A cube shaped container has an edge length of 13cm. The container is filled point half way with water. What is the volume of the water​

Answers

Answer:

1098.5 might be right...

Step-by-step explanation:

13x13x13 is a cube

filled halfway with water makes it

13x13x6.5

multiply

1098.5

The answer would be 1098.5 .

correct answer gets brainlest

Answers

Answer:

8

Step-by-step explanation:

Pls brainliest

Answer:

when putting them in this order: 7,7,8,8,8,8,9,9,10

the medium of this is 8 and 8 so you add them up and devide by 2 getting u 8 because 8+8=16 and 16/2 is 8

what is the value of m ?

Answers

32° is the correct answer.
32 is the Answer , searched it up

Which graph represents all of the solutions of 3n–15≤ -3?

Answers

Answer:

B.

Step-by-step explanation:

When 3 subtract from one third of a number n, the result is less than 6. Whitehall inequality and solution represent this situation?

Answers

The answer is:

n > -9

Can someone help me with my homework for free it won’t let me put my question?

Answers

Answer:

yes I will help you first tell your class

Please help, this is due today

The table below shows the math and verbal test scores of 10 students at a school. When the best-fit linear model for this data set is graphed, which conclusion will be best supported by the residuals

Answers

Answer:

D

Step-by-step explanation:

There is not correlation between math and verbal students

Answer:

D

Step-by-step explanation:

What is the RANGE of this data set? (3, 6, 3)

Answers

Answer:

Range = 3

Step-by-step explanation:

The range is the difference between the largest and smallest value in the data set. So, 6 - 3 = 3 is your answer.

The range is 3, I ended up looking it up

PLEASE HELP!! I'M GIVING ALL MY POINTS!! I'LL ALSO GIVE BRAINLIEST IF U DO ALL ANSWERS.

Answers

For shape A, it’s simply length x height.
So, that would be 9.2cm x 11.3cm= 103.96

For shape B, it’s base x height = area.
So, that would be 8 1/2cm x 11cm = 93 1/2

For shape C, you have to multiply the height and by the base and then divide by 2:
8cm x 14.5cm = 116 divided by 2= 58

For shape D, it’s 112cm.
You add the two bases together and then multiply by height. Then divide by 2.

Then simply put all the numbers from greatest to least.

REWARDING BRAINLY TO CORRECT ANSWER (IF I DONT GIVE IT RIGHT AWAY DONT SPAM!!)

Answers

Answer:

Sharon's range is greatest at 17

Step-by-step explanation:

her lowest score was 80 and highest was 97

Answer:

It's sharon

Step-by-step explanation:

You find the range by taking the max value and subtracting the minimum value, her max is 97 and her min is 80, so you do 97-80 which equals 17, the greatest range in the table

Realice los siguientes ejercicios de Proporciones
a) 1/16 = 7/x
b) 1/3 = x/9
c) 2/5 = x/15
d) 6/9 = 5/x
e) 78/9 = 39/x
Ayuda por favor :(

Answers

Answer:

ytfdjyuguuc

Step-by-step explanation:

yfullk;ljknlm

PLZZZZ HELP ME if you dont know the answer plz dont help me

Answers

D; since I know for a fact the square root of 2 isn’t one, it’s closer to 1.41…
I think it is D
I hope this helps

PLEASE HELP!!! deck measures 18 feet by 25 feet Garden measures 9 feet by 12 feet

Q1: What is the area of the garden?

Q2: What is the area of the deck, not including the garden?

Q3:If it costs $4.20 per square foot to install the deck, how much would it cost to build the deck?

Q4: If it costs $1.40 per square foot to install the garden, how much would it cost to plant the garden?
151.2

Q5: How much would this project cost in total?

Answers

Answer:

Area of Garden: 108 feet

The area of the deck, not including the garden: 342 feet

Q3: $1,890

Q4: 151.2

Q5: $2041.2

Step-by-step explanation:

I know that Q3 is 1,890 but i’m bot sure about the rest.

Big Ideas Math

The area of a rectangle is 35 square meter. The width is 25 meter.


a. What is the length of the rectangle? Write your answer as a fraction in simplest form.


The length of the rectangle is

meters.


b. How many times greater is the length than the width? Write your answer in simplest form.


The length is

times greater than the width.Find the area and perimeter of the indicated regions. Write your answers as mixed numbers, if necessary.


a. One end zone:


Perimeter:

yd Area:

yd2


b. The playing field (not including end zones):


Perimeter:

yd Area:

yd2


c. The playing field (including end zones):


Perimeter:

yd Area:

yd

Answers

i’m not sure if i’m correct but i say
It is c because of the perimeter

PIck all that you think are correct then i will mark brainliest

Answers

Hopes this helps:

Answer:

4/100, 0.04, and I don’t know the percent but I hope that helps.

I already posted this photo once asking for answers, but I only said "Thank you, have a nice day." with the photo, and apparently that confused some brainless people. Anyways, I would appreciate it if someone could help me with the question in this photo. Thank you!

Answers

Answer:

12 outcomes

Step-by-step explanation:

To get a red on the counter, it's a 50% chance. To get a number greater than 3 on a spinner with numbers labeled 1 to 6, it's another 50% chance. To get the chance of both happening, you'll have to multiply both percents together. 50% x 50% = 25%

2/5 = 0.4 = 40%

40% of 80 is 32

25% of 80 is 20

32 - 20 is 12

A group of armed forces personnel were surveyed. The branch of service was recorded in the chart below.
What percent of the whole group are in the Navy?
26%
33%
12%
27%

Answers

27%
divide one hundred thirty five but the total of five hundred and move the decimal back two places
27 I did this last semester
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