Mathematics High School

expand and simplify

( x+4)(x-3)​

Answers

Answer 1

Answer:

The answer is x² + x - 12.

Step-by-step explanation:

1) Use foil method: (a + b) (c + d) = ac + ad + b + bd.

[tex] {x}^{2} - 3x + 4x - 12[/tex]

2) Collect like terms.

[tex] {x}^{2} + ( - 3x + 4x) - 12[/tex]

3) Simplify.

[tex] {x}^{2} + x - 12[/tex]

hence, the answer is x² + x - 12.

Answer 2

Step-by-step explanation:

[tex](x + 4)(x - 3) \\ {x}^{2} - 3x + 4x - 12 \\ {x}^{2} + x - 12[/tex]

Related Questions

Abbie opened a no-interest bank account with $20, and she deposits $14.50 every week. Carlos opened a no-interest bank account with $28, and he deposits $12.50 every week. Carlos and Abbie do not make any withdrawals from their accounts. The equation below can be used to find w, the number of weeks it will take for the balances in their accounts to be the same. 20 + 14.50w = 28 + 12.50w What value of w makes this equation true?

Answers

Answer:

4 weeks

Step-by-step explanation:

14.50 (4) + 20= 78

12.50 (4) + 28= 78

What is the area of this square with sides of 5x⁴y²?

Answers

Answer:

Area of given Square = 25x⁸y⁴

Step-by-step explanation:

Given:

Side of a square = 5x⁴y²

Find:

Area of given Square

Computation:

Area of Square = Side²

Area of Square = Side × Side

Area of given Square = [5x⁴y²]²

Area of given Square = [5x⁴y²] × [5x⁴y²]

Area of given Square = [5 × 5][x⁴ × x⁴][y² × y²]

Area of given Square = [25][x⁴⁺⁴][y²⁺²]

Area of given Square = [25][x⁸][y⁴]

Area of given Square = 25x⁸y⁴

2. Quinn receives 48K per year as a store manager. His benefits include health insurance, paid holidays, retirement
contributions, paid vacation, and uniforms per year. He constructed the table to show the value of each benefit. What is
his annual salary, including benefits?
you
try!
Benefit
Health Insurance
Paid Holidays
Retirement Contributions
Paid Vacation
Uniform Supplied
Value
$10,200
$915
$5,200
$1,950
$3,000

Answers

Don’t open the file it takes your information and it does it even show the workplease be careful

7.5cm+5.5cm+22cm5.5cm+7.5cm

Answers

Answer:

20.5cm+11c^2m^6

Step-by-step explanation:

simplify the expression

-12.5 would be between the numbers ___ and ___ because...

Answers

Answer:

- 12.5 would be between the numbers - 12 and - 13.

¿ Could you give me the answer?

Answers

Answer:

6.28cm²

Step-by-step explanation:

the radius is 1 so

2x1 x pi

2 x 3.14

6.28

12.56 cm


Explanation: circumference = pi (3.14) * radius (4cm)

There are 500 students in a school. Sara asked 100 of the students what their favorite lunch is. Out of the students surveyed 45 said pizza, 15 said burritos, 30 said hamburgers, and 10 said hot dogs. Based upon the results, how many students out of the whole school should want the items listed? (Round to the nearest whole number.) Pizza: 225 Burritos: 75 Hamburgers: 150 Hot Dogs: 50 Pizza: 22500 Burritos: 7500 Hamburgers: 15000 Hot Dogs: 5000 Pizza: 125 Burritos: 125 Hamburgers: 125 Hot Dogs: 125 Pizza: 45 Burritos: 15 Hamburgers: 30 Hot Dogs: 10

Answers

Answer: Pizza: 225 Burritos: 75 Hamburgers: 150 Hot Dogs: 50

Step-by-step explanation:

Since Sara asked 100 of the students for their favorite lunch but there are 500 students in a school, this means that the items listed will have to be multiplied by 5 (500/100) in order to get the number of students in the whole school that'll need the items listed. This will therefore be:

Pizza = 45 × 5 = 225

Burritos = 15 × 5 = 75

Hamburgers = 30 × 5 = 150

Hot dogs = 10 × 5 = 50

The correct option is A:

Pizza: 225 Burritos: 75 Hamburgers: 150 Hot Dogs: 50

These four numbers are plotted on a number line: -2/3, 5/8, -3/5, and -1/2. Which is the correct ordering on the number line from left to right?
A. -1/2, -3/5, 5/8, -2/3
B. -3/5, -2/3, -1/2, 5/8
C. -2/3, -3/5, -1/2, 5/8
D. -1/2, -3/5, -2/3, 5/8​

Answers

Answer:

-2/3 ; - 3/5 ; - 1/2 ; 5/8

Step-by-step explanation:

Given that:

We could convert the numbers to decimal to obtain a better view of the values :

-2/3 = - 0.66666

5/8 = 0.625

-3/5 = - 0.6

-1 /2 = - 0.5

Negative values are always arranged first on left of a number line.

-0.66666 < - 0.6 < - 0.5 <0.625

Hence,

-2/3 ; - 3/5 ; - 1/2 ; 5/8

6. Sara Just spent $44 to get her hair styled. She
wants to leave a 15% tip for her hairdresser. How
much should she leave for the tip?

Answers

Answer:

$6.60

Step-by-step explanation:

You'd take the total anf multiply it by your percent amount with the decimal moved two places to the left

44 * .15 = 6.60

6.60 is the answer ur looking for

Find the area of each 1-10 show work.

Answers

Answer:

hope this helps you out good luck

Chloe has 3 red pencils, 5 blue pencils, and 1 yellow pencil in her backpack . She chooses one pencil at random, puts it back, and then chooses another pencil .

Answers

Answer:

then she only has eight pencils in the bag.

Step-by-step explanation:

Answer:

Eight

Step-by-step explanation:

hello please help thanks

Answers

Answer:

evaporation

Step-by-step explanation:

ur welcome

evaporation because that is also how it rains

Of the 30 students in the sixth period math class, 8 are also in the same fourth period science class. Which can be used to determine the probability that if three students are chosen at random from the math class to do a group project, the first student chosen to be in the group is in the fourth period science class but the other two are not?

Answers

Answer: A is the correct answer

Step-by-step explanation:

Answer:

(8/30)(22/29)(21/28) or A

x-2y=4 in slope intercept form

Answers

Answer:

y = 1/2x - 2

Step-by-step explanation:

Slope intercept form:

y = mx + b

x - 2y = 4

-2y = -x + 4

2y = x - 4

y = 1/2x - 2

Answer: y=(1/2)x + 2

Slope intercept form: y = mx + b
y= answer, y-value
m=slope
x= independent variable, x-value
b= y-intercept (0,b)

x-2y=4
1. Isolate 2y by adding x to both sides of the equation: 2y = 4+x
2. Isolate y by dividing 2 to both sides of the equation: y = 2+(1/2)x
3. Rearrange in slope intercept form.
y=(1/2)x + 2

For the GJW Clean Up event, Ms. Baran spent $37.95 on 23 packets of hand wipes for
her team of volunteers. What was the price of each packet think unit rate/price)?
Pls I need help on this quick

Answers

1.65 dollars for each packet

What is the factored form of 25x²-64?

Answers

Answer:

25x²-64(5x)²-8²(5x-8)(5x+8)

hope it helps.

anyone know the answers to questions 7, 8 and 9?

Answers

Answer:

7. B 8. J 9.B

Step-by-step explanation:

A football team had a total of 33 players. One third of the players were seniors. How many players were underclassmen?

Answers

Answer:

22

Step-by-step explanation:

1/3 of 33=11

11=number of seniors

2/3 of 33=22

22+11=33

22=number of underclassmen

plz can i get brainliest:)

WHOEVER ANSWERS CORRECTLY GETS BRAINLIEST
Javier and his friends go out to eat. The restaurant they chose automatically adds a 15% gratuity to their food bill since they are a party of 12. The total bill after the automatic 15% gratuity was $213.90. Because they received such good service, the group decided to add an extra $20 to the total bill as an additional tip.
So, instead of leaving a 15% tip, Javier and his friends ended up leaving a tip that was about __% of the food bill.

Answers

Answer:

26% tip

Step-by-step explanation:

213.90 / 1.15 = 186

213.90 + 20 = 233.9

233.9 / 186 = 1.26

26% tip

if i was nine years old an 2002 what age will i be and 2018

Answers

Answer:

25

Step-by-step explanation:

2018-2002 is 16 years.

Then add 16 to 9 to get 25!

What is a dog plus dog?

Answers

Answer:

puppy

Step-by-step explanation:

Hm. Maybe an elephant?

Is 0.2 equivalent to 2/100

Answers

Answer:

no

Step-by-step explanation:

3x+6=21 what is the value of x

Answers

Answer:

[tex]3x + 6 = 21 \\ 3x = 21 - 6 \\ 3x = 15 \\ x = \frac{15}{3} \\ x = 5[/tex]

Answer: x=5

Step-by-step explanation:

step 1:

put all the coefficients on one side and all the variables on the other, 3x=21-6

step 2:  solve the sides, 3x=15

step 3: divide, 3x/3= 15/3

step 4: simplify: x=5

Please help me out! As soon as possible.

Answers

Answer:

Number of hours gardening

Step-by-step explanation:

12g

g = Number of hours gardening

solve for a

2a+3b=12-2(2b+a)

PLEASE SHOW WORK ILL MARK BRAINLIEST.

Answers

Answer:

a = 3 - (7/4)b

Step-by-step explanation:

Start by performing the indicated multiplication:

2a+3b=12-2(2b+a)  =>  2a+3b=12 - 4b - 2a

Next, combine like terms:  4a + 7b = 12

Isolate 4a by subtracting 7b from both sides:  

4a = 12 - 7b

Finally, divide both sides by 4:

a = 3 - (7/4)b

Which expression can be used to represent the 9 more than the quotient of 14 and 2? (14 + 2) ÷ 9 14 ÷ 2 X 9 (14 X 2) + 9 (14 ÷ 2) + 9

Answers

Answer:

The expression that can be used to represent 9 more than the quotient of 14 and 2 is (14 ÷ 2) +9

Step-by-step explanation:

The statement 9 more than the quotient of 14 and 2 means

9 + the quotient of 14 and 2.

Now, for the quotient of 14 and 2

Recall that,

Dividend ÷ Divisor = Quotient.

Here, Dividend = 14 and the Divisor is 2

Hence, the quotient of 14 and 2 can be represented by 14 ÷ 2

∴ The statement 9 more than the quotient of 14 and 2 becomes

9 + (14 ÷ 2) OR (14 ÷ 2) +9

Hence, the expression that can be used to represent 9 more than the quotient of 14 and 2 is (14 ÷ 2) +9

Select the correct answer. If a six-sided die is rolled 30 times, how many times can you expect to get a 6?​

Answers

Answer:

5

Step-by-step explanation:

6 over 30 simplify it and boom (divide 30 by 6)

Answer:

If you rolled a six-sided die and rolled it 30 times you would have expected an 6 about 5 times so your answer would be B.

11.
Simplify the expression.
(10 - 4² - 4
Plz help

Answers


The equation simplified gives you the answer of -10

4. If a set of data is normally distributed with a mean of 40 and standard
deviation of nine. Determine the percent of the data that is between 36 and 41.

9.18%
18.81%
21.38%
54.38%

Answers

Answer:

18.81

Step-by-step explanation:

A table with an area of 2688 inches and a length of 64''. Find the perimeter of the table

Answers

Answer:

212

Step-by-step explanation:

First you would need to divide 2688 and 64 you would get 42. Then, now you need to add 64+64+42+42. Which in the end equals 212.

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