Expand the following:
a) x(x + 6)
b) x(5x - 1)
c) 3x(6x + 5)
d) 4x(2x – 3y)​

Answers

Answer 1

Answer:

a) x(x + 6)  = x · x + x · 6 = x² + 6x

b) x(5x - 1)  = x · 5x - x · 1 = 5x² - x

c) 3x(6x + 5)  = 3x · 6x + 3x · 5 = 18x² + 15x

d) 4x(2x – 3y)​ = 4x · 2x - 4x · 3y = 8x²-12xy


Related Questions

A rectangle measures 7.08 cm by 3.2 cm.
Work out the area of the rectangle.​

Answers

Answer:

22.67 cm^2

Step-by-step explanation:

The computation of the area of the rectangle is shown below:

As we know that

Area of the rectangle = Length × breadth

Here we assume the length be 7.08 cm

Or breadth be 3.2 cm

Or if we assume them inverse like length be 7.08 cm and breadth be 3.2 cm

SO the area of the rectangle is

= 7.08 cm × 3.2 cm

= 22.67 cm^2

In the both cases the answer would be the same

What is the solution to the equation/x+4+3/2x+8 = 0?
O x=-12
O x=4
O x= 4
O x= 12

Answers

4 because if you add 4 and 8 that would be 12

There were 40 desks in a class. The teacher wanted to arrange the desks in a rectangle with at least 4 desks in each row and column. Which of the following is a possible desk arrangement?
A) 20 rows and 20 columns
B) 5 rows and 8 columns
C) 2 rows and 20 columns
D) 7 rows and 7 columns

Answers

Answer:

B) 5 Rows and 8 Columns

Step-by-step explanation:

First you take the information from the question to know that C is wrong. This is because It has only 2 desks in rows and the question asks for 4 desks in rows and columns. Next you know that you have 40 desks so the two numbers need to multiply to 40. This makes A and D wrong, leaving your answer as B.

2 rows and 20columns

Which graph represents the solution of the system:

y=3y=2x−1

Answers

Answer:

The second graph

Step-by-step explanation:

Answer: I think it's the 2nd option

Step-by-step explanation: (y=3) on the graph would be right between 4 and 2, going Horizontally across the graph

The (y=2x−1) goes diagonally down the graph: intercepting with the numbers shown on the following question

Also according to my calculations, the line is diagonally on the y intercept just like the second option

4 + 3(4 - 2)^2 - 3(3 - 2)^3

Answers

PEMDAS

4+3(4-2)^2 - 3(3-2)^3
4+3(2)^2 - 3(1)^3
4+3(4) - 3(1)
4+12-3
16-3
13

The answer is 13

Worth lot of points

Answers

Answer:

Step-by-step explanation:

plug in -3  into the given g(x) formula where x = -3

(3(-3) -5) / (-7(-3) -4)

(-9-5) / (21-4)

-14 / 17

[tex]-\frac{14}{17}[/tex]

Answer:

Step-by-step explanation:

x = -3 인 주어진 g (x) 공식에 -3을 연결합니다.

(3 (-3) -5) / (-7 (-3) -4)

(-9-5) / (21-4)

-14/17

What is 514 times 33?

Answers

Answer:

16,962

Step-by-step explanation:

Hope that helps lol.

you buy 1 balloon and 1 banner for $4. your friend buys 3 balloons and 2 banners for $9.

each ballon costs: ?
each banner costs: ?

Answers

Answer:

each balloon costs 1$ and each banner costs 3$

Step-by-step explanation:

The costs of each balloon and banner are $1 and $3 respectively.

What is a system of equations?

A set of simultaneous equations, also known as a system of equations or an equation system, is a finite set of equations for which common solutions are sought.

Given that, you buy 1 balloon and 1 banner for $4. your friend buys 3 balloons and 2 banners for $9.

Let x represents balloons and y represents banners.

Establishing the equations,

x+y = 4

x = 4 - y......(i)

3x + 2y = 9...(ii)

Put eq(i) in eq(ii)

3(4 - y) + 2y = 9

12 - 3y + 2y = 9

y = 3

Put y = 3 in eq(i)

x = 4-3

x = 1

Hence, the costs of each balloon and banner are $1 and $3 respectively.

Learn more about systems of the equations, click;

https://brainly.com/question/12895249

#SPJ2

8th Grade Math Midterm

Answers

What about ittttttttt

Hello :)
Please help me solve this

Explain answer

Answers

Answer:

[tex]Scale\ Factor = \frac{1}{2}[/tex]

ABC dilated

Step-by-step explanation:

Given

Triangles ABC and DEF

Required

Determine the scale of dilation

First, we pick a side on ABC

[tex]AB = 6[/tex]

Pick a corresponding side on DEF

[tex]DE = 3[/tex]

The scale factor is then calculated as:

[tex]Scale\ Factor = \frac{DE}{AB}[/tex]

[tex]Scale\ Factor = \frac{1}{2}[/tex]

i.e. ABC was dilated by 1/2

6) a pizza is divided among John, Tim and kevon . John received 3/8 and Tim received 1/3 of the remainder. What fraction does Kevon receive? (A) 5/8 (B) 9/24 (C) 5/24 (D) 10/24​

Answers

I thinks A 5/8 hoped this helped

Answer:

C. 5/24

Step-by-step explanation:

John = 3/8

Tim = 1/3

Kevon = ?

---------------------------------

3/8 = 0.375

1/3 = 0.333

0.375 + 0.333 = 0.708

0.292 is left

---------------------------------

5/8 = 0.625 - wrong

9/24 = 0.375 - wrong

5/24 = 0.208333 = 0.293

10/24 = 0.416667 - wrong

---------------------------------

A jar contains 12 caramels, 7 mints and 16 dark chocolates. The probability of selecting a dark chocolate, eating it, and then a selecting a caramel is the setup. What is the probability fraction of "selecting a dark chocolate".

Answers

Answer:

45.7%

Step-by-step explanation:

12 + 7 + 16 = 35

16/35 = 0.457 = 45.7%

HELP ASAP.

WILL GIVE BRAINLIEST

Answers

Answer:

yay

Step-by-step explanation:

ty

Write 6 wholes and 2 tenths as a decimal.​

Answers

Answer: 6.2

Step-by-step explanation:

A whole number is behind the decimal point.

The tenth is right in front of the decimal point.

pls help me jajahiaj,vsjava​

Answers

Answer:

my name is jajahiaj,vsjava

Which class has a ratio of girls to total students of 7:10?
A. class with 3 boys and 7 girls
B. class with 7 boys and 3 girls
C. class with 7 boys and 10 girls
D. class with 10 boys and 7 girls

Answers

Answer:

A

Step-by-step explanation:

The total class is 10

the number of girls is 7

ratio of girls to total students - 7:10

Find all solutions of sinx-sqrt1-3sin^2x=0

Answers

Answer:

what

Step-by-step explanation:

that doesnt make any sense

can someone fill in the chart please!!

Answers

Answer: (P 3, -3, 4, -4) {q 14. -14, 7, -7} [P + Q 17, -17, 11, -11]

Hope this helps! :)

can you please help me with this?​

Answers

Answer:

B?

Step-by-step explanation:

I beilieve its B? Ive never heard about dances for inuguration.

If the simple interest on ​$7000 for 5 years is ​$​2800, then what is the interest​ rate?

Answers

Answer:

R%= P × T /SI

r = $7000×5 /$2800

r= 12.5%

plzz thnx my answer..

Hello! :)
Please help me solve this + explain your answer :)

I will indeed give you Brainlst <3

Answers

Answer:

D (-2,6)

x=y-8;5x+y=-4

Step: Solve x=y−8for x:

Step: Substitute y−8 for x in 5x+y=−4:

5x+y=−4

5(y−8)+y=−4

6y−40=−4(Simplify both sides of the equation)

6y−40+40=−4+40(Add 40 to both sides)

6y=36

6y /6 = 36/ 6  (Divide both sides by 6)

y=6

Step: Substitute6foryinx=y−8:

x=y−8

x=6−8

x=−2 (Simplify both sides of the equation)

x=−2 and y=6

I hope this helps:

Help please due soon

Answers

Answer:

b is 42

hope that helpssss

Please help me with this question

Answers

3 x 3/4= 9/4 or 2 1/4
7 x 3/8= 21/8 or 2 5/8
5 x 2/3= 7/3 or 2 1/3
4 x 1/5= 4/5

Please help I really CANNOT get this wrong so pls:
2x-7-5(4x-7)

Answers

Answer:

Step-by-step explanation:

2x - 7 -5(4x-7)

2x - 7 -20x + 35

-18x + 28  

Answer:

-18x + 28

Step-by-step explanation:

2x-7-5(4x-7)

1. Distributive Property

2x - 7 - 5*4x - 5*-7 ( 2 negatives make a positive)

2x - 7 - 20x + 35

2. Combine like terms

2x - 7 - 20x + 35

-18x + 28

you cannot simplify it anymore

Plz help! I really need this!

Answers

Answer:

x=16

Step-by-step explanation:

the remaining angle for thw triangle is found by subtracting the already shown angles from 180 (the angle some of a triangle) which happens to be 96 to get 84 but now you need to subtract 84 from 180 to find the angle on the other side of line because lines have a total angle measurement of 180 but we already kbow what this get's us because it's 96 now we devide 96 by 6 to get 16 our answer.

what is 5 quarts converted to liters

Answers

Answer:

1 quart = 0.95 liters. with this said, we can conclude that 5 quarts equals 4.73 liters

Answer:

4.73176

Step-by-step explanation:

okay so this is the exact decimal but you can just write you answer as 4.73

hope this helps

Nada is making square coasters with sides of 3 inches. On each coaster is a circular design. What is the radius of the largest circle that fits on one of the coasters?

Answers

Answer:

1.5

Step-by-step explanation:

diameter is half the length of the circle so if it is 1.5 the full length will be 3 inches which is the full length of the coaster

Which answer shows the proper use of the distributive property?

A. 2(a+b) = 2ab
B. 2(a+b) = 2a + b
C. 2(a+b) =2a+2b
D. 2(a+b) = a+2b

Answers

Answer:

c is showing the proper  distributive property

Step-by-step explanation:

C shows correct distribution

If the weight of a package is multiplied by 7/10 the result is 21 pounds. Find the weight of the package.

Answers

Answer:

30 pounds

Step-by-step explanation:

take the 21 pounds and divide it by 0.7

Answer:

30

Step-by-step explanation:

[tex]21 / 0.7=30[/tex]

Check

30 x 0.7 = 21

Sketch a graph that shows the
relationship between grams of honey and
grams of salt needed for a bakery recipe.
Show on the graph how much honey is
needed for 70 grams of salt.
salt
honey
flour
(c)
10
14
4
25
35
10
1 Add file

Answers

The answer is 40 to the add file
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