Expand the following:
a) x(x + 2)
b) x(2x - 5)
c) 2x(3x + 4)
d) 6x(x - 2y)

Answers

Answer 1

a) x²+2x

b)2x²-5x

c)6x²+8x

d)6x²-12xy


Related Questions

will give brainiest help


Three salesmen work for the same company, selling the same product. And, although they are all paid on a weekly basis, each salesman earns his paycheck differently. Salesman A works strictly on commission. He earns $65 per sale, with a maximum weekly commission of $1,300. Salesman B earns a weekly base salary of $300, plus a commission of $40 per sale. There are no limits on the amount of commission he can earn. Salesman C does not earn any commission. His weekly salary is $900.

The weekly paycheck amount for each salesman, p, is a function of the number of sales, s, they had in that week.
Is the function representing the weekly paycheck amount of Salesman A a proportional relationship? Use complete sentences to explain your reasoning.
Is the function representing the weekly paycheck amount of Salesman B a proportional relationship? Use complete sentences to explain your reasoning.
Is the function representing the weekly paycheck amount of Salesman C a proportional relationship? Use complete sentences to explain your reasoning.

Answers

Answer:

See below

Step-by-step explanation:

Proportional relationship formula:y = kx

As per given we have:

Salesman A

p(s) = 65s  (p = $1300 maximum)This is a proportional relationship,  $65 per each sale. But this is restricted to 20 sales.Answer is yes (ignoring the restriction)

Salesman B

p(s) = 40s + 300This is a linear but not proportional relationshipAnswer is no

Salesman C

p(s) = 900There is no relationship between sales number and weekly earning as it is a fixed salaryAnswer is no

the question is in the picture​

Answers

Answer:

should also = 35* if I'm not mistaken

Step-by-step explanation:

if this is wrong I'm very sorry. if no one else helps u with in the next 10 mins I suggest using socratic, it helps me

Ahmed buys a house for 179500 a year later he sells the house for 190270 calculate the percentage profit

Answers

Step-by-step explanation:

For percentage profit questions, use this formula:

Percentage 'change' = 'change' / original x 100

(where 'change' is the difference between the 2 values)

Now subsitute the values:

Percentage Change = 10770 / 179500 × 100

Answer :

6

hope this helps

Someone help me please :)

Answers

Answer:

A={5,1,-7}

Step-by-step explanation:

domain = x

choose domain {-2,0,4} to 2x+y=1

range = y

range is

2(-2)+y =1 ,y =5

2(0)+y=1, y= 1

2(4)+ y=1, y=-7

range = {5,1,-7}

Your answer should be {5,1,-7}

Question: How many solutions: x + 2y = 6 and 2x − 3y = 26

Answers/Answers to choose from:
One-Solution
Infinitely Many Solutions
Or No Solution

(Basically does the question have only one solution, infinitely many solutions, or does it have no solution) Please don't guess

Answers

Answer:

one-solution

Step-by-step explanation:

(x + 2y = 6)2

2x - 3y = 26

2x + 4y = 12

2x - 3y = 26

7y = -14

y = -2

x + 2(-2) = 6

x + -4 = 6

x = 10

Answer:

One-Solution

Step-by-step explanation:

It is two lines, if they intersect there is one solution, if parallel- no solution, if  same lines- infinitely many solutions

Lets put them in slope-intercept form and compare:

x + 2y = 6 ⇒ 2y = -x + 6 ⇒ y = -1/2x + 32x - 3y = 26 ⇒ 3y = 2x - 26 ⇒ y = 2/3x - 26/3

As we see the lines have different slopes, so they intersect which means one solution only.

Find an example of a function relation in your everyday activity. State the input and output and rate of change.

Answers

Answer:

gogleeee

Step-by-step explanation:

I think it would be something like selling Candy bars you could go to the store and buy candy bars and then sell them the way I see it is that you rely on the candy bars so you can make money from selling them I’m sorry if this doesn’t make sense to you I was never really good at explaining things and I’m still new to Brainly

What is the area of the pentagon shown?
16 cm
15 cm
18 cm
20 cm

Answers

Answer:

86400!

Step-by-step explanation:

Multiply!! hope this helped

Help me plssss plsss

Answers

Answer:

The answer is A

Step-by-step explanation:

We did it the exact same way in my school so I know what that kind of line means

Answer:

Pretty sure it's A! If I'm wrong I'm gonna feel horrible but Im pretty sure it is A.

What is the most simplified form of this


You can zoom the picture:) also please don't put anything random I really need the help!​

Answers

Step-by-step explanation:

Remember the difference of squares:

a² - b² = (a + b)(a - b)

Therefore (2 + i√10)(2 + i√10)

= 2² - (i√10)²

= 4 - (10i²)

= 4 - (10)(-1) because i² = -1

= 4 + 10

= 14.

Answer:

14

Step-by-step explanation:

Note: i^2 = -1

4 + 2i(sqrt10) - 2i(sqrt10) - i^2(sqrt(100))

= 4 - (-10)

= 4 + 10

= 14

i really need help lol

Answers

The answer would be c

The sum of three consecutive even numbers is 450. What is the 3rd number?​

Answers

Step-by-step explanation:

Which means that the first number is 149, the second number is 149 + 1 and the third number is 149 + 2. Therefore, three consecutive integers that add up to 450 are 149, 150, and 151. We know our answer is correct because 149 + 150 + 151 equals 450 as displayed above.

PLEASE MARK ME AS BRAINLIEST ANSWER

HOPE IT HELPS YOU

The three consecutive integers that add up to 450 are 149, 150, and 151.

What are the consecutive numbers?

The consecutive numbers are those numbers that follow each other continuously in the order from smallest to largest numbers.

Given that the sum of three consecutive even numbers is 450

We need to find the 3rd number of the integers.

Now assume the 3 consecutive integers are x, (x+1) and (x+2)

Therefore, x+(x+1)+(x+2)= 450

Combine the like terms;

3x+3=  450

X=149

Thus the second number is 149 + 1 and the third number is 149 + 2.

Hence, the 3rd number of the integers would be 151.

Learn more about the consecutive whole numbers;

brainly.com/question/24912446

#SPJ2

Sam saves up to buy a baseball glove that costs $60.00. He must pay 7% sales tax.
He has $65.00
What is the total price with tax? Does he have enough money?

Answers

Answer:

Step-by-step explanation:

6x+14=50

(6x is hourly wage, x being the hours, 14 is the amount he started with, and 50 is what he needs)

6x=36

x=6 hours

2x+-2y=14
x+4y=13
Elimination Method to Solve Linear Equations

Answers

Answer:

(41/5, 6/5)

Step-by-step explanation:

2x+-2y=14

x+4y=13

You can multiply the first equation by 2 so you can eliminate the y:

2(2x+-2y=14)

4x+-4y=28

Then you can set up both equations to be added together:

 4x+-4y=28

+ x+4y=13    

5x=41

x=41/5

Then you can substitute 41/5 for x in the original equation:

x+4y=13

41/5+4y=13

5(41/5+4y)=5(13)

41+20y=65

20y=24

y=24/20

y=6/5

Check:

2x+-2y=14

2(41/5)+-2(6/5)=14

82/5+-12/5=14

70/5=14

14=14

15) Evaluate the following expression for x=0.2 and y=3.4: x(y2 - 4)

Answers

Answer:

x(y² - 4) = 1.512

Step-by-step explanation:

We need to evaluate the following expression for x = 0.2 and y = 3.4 :

x(y² - 4)

Put the values of x and y.

x(y² - 4) = (0.2)((3.4)² - 4)

= (0.2)((3.4)² - 4)

= 0.2×7.56

= 1.512

So, the value of the above expression is 1.512

One winter morning, the temperature was -2°c.
By 11:00 A.M., the temperature had decreased by
3º. At 4:00 P.M., the temperature reached oºc.
What integer represents the temperature
change from 11:00 A.M. to 4:00 P.M.? please help me

Answers

Answer:

Step-by-step explanation:

temperature is   -2°C

by 11 AM        is  -2-3=-5°C

at 4 PM          is       0°C

the integer is 5

Factorise fully 18x - 9

Answers

Answer: 9(2x-1)

Step-by-step explanation:

answer:
i’m pretty sure
= 9 (2x - 1)

Regina eats a piece of fruit from a basket of apples, bananas, pears, and melons. Later her brother eats a piece of fruit from the basket. Do these represent independent or dependent events? Explain your answer.

Answers

these represent independent events because they are all equally distributed throughout this process theoretically proving that they are independent

covert 12/5 into a mixed number in simplest form

Answers

Answer:

2 2/5

Step-by-step explanation:

1. f(x) = 2x + 4 when x = 5

Answers

Answer:

f(5)=14

Step-by-step explanation:

f(5)=2(5)+4

f(5)=10+4

f(5)=14

Answer:

14

Step-by-step explanation:

Ignore the f(x) for now.

x is 5, so we plug it in to get 2*5+4. Using PEMDAS, you multiply 2 and 5 to get 10 and add 4 to get 14.

HELP ME WITH THIS. PLZ

Answers

The correct answers to this include B,D,E

Answer:

The correct answers to this include B,D,E

Step-by-step explanation:

PLZ IM BEGGING YOU
Levi invested $160 in an account paying an interest rate of 3% compounded daily.
Assuming no deposits or withdrawals are made, how much money, to the nearest ten
dollars, would be in the account after 8 years?

Answers

Answer:

200

Step-by-step explanation:

Find the measure of the sides of an equilateral triangle with a perimeter of 108 cm.​

Answers

Answer:

The measure of the sides of an equilateral triangle with a perimeter of 108 cm is 36 cm.

The answer is 36 cm hope that helped

can someone help me solve 32 + 1 x 2​

Answers

34...................

PLZ HELP!!!!!!! (15 points)

Which of the sets of ordered pairs represents a function? (4 points)

A = {(−4, 5), (1, −1), (2, −2), (2, 3)}
B = {(2, 2), (3, −2), (9, 3), (9, −3)}

Group of answer choices

Only A

Only B

Both A and B

Neither A nor B

Answers

Answer:

I think it should be Neither A nor B

please answer now i am being timed ​

Answers

You should substitute the values of x and y from the suggested points into the given equation and if both sides are equal then the point is on that line.
Using this, the points are (-5,5), (1,2), and (5,0)

I was wondering if my answer to this question was right:
The question is : Write the equation of the line that is parallel to x +2y = 4 and passes the point (0,5).
My answer is : y = -1/2x +5

Answers

yup! you’re answer is correct
Yes that looks correctt

can somone pls help me .. i will mark u brainliest !

Answers

Answer:

1. D

2. A

3. B

Step-by-step explanation:

1. Add exponents

2. Multiply exponents to outside exponent and to the 16

3. Distribute exponents

Im not sure how to find the missing angle

Answers

Answer:

Step-by-step explanation:

the question is asking for the length of the side labeled x

use Pythagoras'  theorem to find that side

where c = x   because c represents the hypotenuse in the theorem and x is on the hypotenuse in this problem

c = [tex]\sqrt{a^{2} + b^{2} }[/tex]

sooo  plug in a = 14 and b = 10

c = [tex]\sqrt{14^{2} + 10^{2} }[/tex]

c = [tex]\sqrt{196+100}[/tex]

c = [tex]\sqrt{296}[/tex]

c= 17.20465.....  ( that's the approx. length of side x in the problem )

since this is a right triangle we could use trigonometry to find the two angles use SOH CAH TOA  to remember how those functions fit on the triangle.

Sin(Ф)=Opp/Hyp  Cos(Ф)=Adj/Hyp  Tan(Ф)=Opp/Adj

since we know the Hyp (hypotenuse) and the side adjacent will be the side with the 10 soooo...

Cos(Ф)=10/17.20465

Ф = arcCos(10/17.20465)

Ф = 54.4623°  is the angle on the side with 10

the side with 14 then has an angle of 35.5376°

:)

the garden measures 4feet by 6 feet

Answers

the area is 24, and the perimeter is 20

Need help on 12...have to find the area..teacher said to use pythagreoum(how ever u spell it) theorem

Answers

Answer:

58[tex]\sqrt{65}[/tex]

Step-by-step explanation:

you can find the height of this trapezoid by using the pythagorean theorem where the hypotenuse is 18 and one leg is 8 (33-25)

let x = height

[tex]8^{2}[/tex] + [tex]x^{2}[/tex] = [tex]18^{2}[/tex]

[tex]x^{2}[/tex] = 324 - 64

[tex]x^{2}[/tex] = 260     therefore, x = [tex]\sqrt{260}[/tex]

[tex]\sqrt{260}[/tex] = [tex]\sqrt{4}[/tex]· [tex]\sqrt{65}[/tex]  or  2[tex]\sqrt{65}[/tex]

A = [tex]\frac{1}{2}[/tex]h x (sum of the bases)        

 

bases are 25 and 33

A = (2[tex]\sqrt{65}[/tex]) ÷ 2)58

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