Mathematics Middle School

EXPANDING BRACKETS -
2x(5x-2)

Answers

Answer 1
The answer is 10xsquared-4x

Related Questions

Pls solve and give all steps with work

Answers

Answer:

y = 6

z = 3.25

x = 3.5

Step-by-step explanation:

12 * 0.5 = 6

6.5 * 0.5 = 3.25

7 * 0.5 = 3.5

Answer:

X = 3.5 inches

Y = 6 inches

Z = 3.25 inches

Step-by-step explanation:

Length of the larger tissue box = 12 inches

Breadth of the larger tissue box = 6.5 inches

Height of the larger tissue box = 7 inches


The small tissue box is dilated by - 0.5


So, the measures of the smaller tissue box is 0.5 times the larger tissue box.

Measures of the smaller box will be -

Length of the smaller tissue box = 12 * 0.5

                                                        = 6 inches

Breadth of the smaller tissue box = 6.5 * 0.5

                                                          = 3.25 inches

Height of the smaller tissue box = 7 * 0.5

                                                        = 3.5 inches


According to the variables,

X = Height

Y = Length

Z = Breadth

Height = 3.5 inches

Length = 6 inches

Breadth = 3.25 inches

X = 3.5 inches

Y = 6 inches

Z = 3.25 inches


Hope my answer helps you.

:)

Please mark my answer as the BRAINLIEST. Plssssssssssssssssssss

I need help plsssssss

Answers

Answer:

y = 3/4 + 4

Step-by-step explanation:

Y Intercept = The number on the Y-Axis that the line crosses (Which is 4 on this question)

Slope = Rise/Run (Starting from the top of the line, count 3 down & 4 right to reach a whole number coordinate)

Using the data below, what conclusions could you NOT draw? Select all that apply.

The longer car will travel the fastest down the ramp

The car with more mass will travel the fastest down the ramp.

The car with the least mass will travel the fastest down the ramp.

Changing the ramp height will cause the car to travel faster.

Answers

Answer:

The longer car will travel the fastest down the ramp

The car with the least mass will travel the fastest down the ramp

Changing the ramp height will cause the car to travel faster

Step-by-step explanation:

The longer car will travel the fastest down the ramp

On the table, we are not told what effect a longer car would have on the time taken. We are only told about the mass of car, this means that this would be one of the conclusions you could not draw.

The car with the least mass will travel the fastest down the ramp

We can see on the table that the higher than mass of a car, the quicker the car takes to go down the ramp. This is as the time taken is shorter so it had taken less time. This opposes the statement we are given therefore it should be incorrect.

Changing the ramp height will cause the car to travel faster

On the table, there is not information regarding ramp height meaning that this statement would automatically be incorrect

Hope this helps, have a lovely day! :)

A wedding photographer charges a $50 sitting fee plus $40 per hour (h).

write an exspression to represent the problem

please

Answers

Answer:

c = 40h + 50

Step-by-step explanation:

c = the amount charged for the wedding pictures.

h = the number of hours

Helping in the name of Jesus.

Step-by-step explanation:

c = 40h + 50

Step-by-step explanation:

c = the amount charged for the wedding pictures.

h = the number of hours

Solve and show steps

Answers

Answer:

Step-by-step explanation:

Answer:

6.25 inches

Step-by-step explanation:

Fraction of an inch that is used to represent 3 miles = 3/4 inch (0.75 inch)

Number of miles that is used to represent 3/4 inch = 3 miles

Fraction of an inch that is used to represent 1 mile = 3/4/3 inch

                                                                                        = 0.75/3

                                                                                        = 0.25 inch

Number of inches that are used to represent 25 miles = 3/4/3 * 25

                                                                                              = 0.75/3 * 25

                                                                                              = 0.25 * 25

                                                                                              = 6.25 inches

So the length of the map = 6.25 inches


Hope my answer helps you.

:)

Please mark my answer as the BRAINLIEST. Plssssssssssssssssssss

Which angle is complementary to EFA?

Answers

Answer: DFE

Step-by-step explanation:

complementay=90 degrees

The dot plot below represents the number of goals scored by the boys' soccer team in every game so far this season. please help me

Answers

The answer is 2. You number the data from least to greatest and find the middle number.

I need help on this.this is for homework help me please

Answers

Answer:Statistical,Both

Step-by-step explanation:

Its right trust !

should be statistical and I think it should be both

Multiple choice need help
It’s the problems on the top the matching question

Answers

Answer:

A3

B1

C2

D4

Step-by-step explanation:

What is an angle that is complementary to FGA?

Answers

Answer: Angle AGB

Step-by-step explanation: Complementary angles are two angles that in total their measures add up to 90 degrees.

We can see the opposite angle across FGB, CGB is a right angle so therefore it means FGB is a right angle.

Since we know FGB is a right angle, FGB + AGB = 90 degrees

2(x +3) = 2x + 6 is an example of which property?

Answers

The property of the given expression [tex]2(x +3) = 2x + 6[/tex] is an example of Distributive property.

You distribute the 2 to the x and get 2x, then distribute the 2 and the 3. [tex]2\times3=6[/tex]. This gets you [tex]2x+6[/tex].

Answer: Distributive property over addition

Step-by-step explanation: You are distributing 2 to in terms inside the parentheses, x and 3.

5x=0.4 do i multiply each side by 5,-5,1/5 or -1/5

Answers

Step-by-step explanation:

5x=0.4
5x=2/5
Multiply with 5 to remove the fraction

*50 points* Geometry 7th grade
Please please PLEASE help

Answers

Answer:

D. Angles 2,4

Step-by-step explanation:

They are both adjacent, which makes the answer D. the correct answer.

Answer:

B

Step-by-step explanation:

Both have a common vertex and side (next to each other).

Please help me,
Gia is thinking of a number, which she calls n. She adds 4 to the number and then doubles the sum.
Write an expression to represent Gia's number.

(I don't know what the expression is, if u can help me, please write the answer! :)

Answers

Answer: 2n + 8

Step-by-step explanation:

1st part:
n + 4

2nd part:
Multiplies the 1st part by 2

2(n + 4)

2n + 8

EXPANDING BRACKETS -
x(3x+2)

Answers

Answer:

[tex]3 {x}^{2} + 2x[/tex]

Step-by-step explanation:

Expanding brackets means multiplying every term inside the bracket by the term on the outside and then collecting like terms with the aim of removing the set of brackets

[tex]x(3x + 2) = 3 {x}^{2} + 2x[/tex]

Answer:

3x² + 2x

Step-by-step explanation:

Given equation, x(3x + 2)

                            = x(3x + 2)

                       Distributive property

                            = {(x * 3x) + (x * 2)}

                            = {(1 * x * 3 * x) + (1 * x * 1 * 2)}

                                  Rearranging like terms

                            = {(1 * 3 * x * x) + (1 * 1 * 2 * x)

                            = [{(1 * 3) * (x * x)} + {(1 * 1 * 2) * x)}]

                            = {(3 * x²) + (2 * x)}

                            = (3x²) + (2x)

                            = 3x² + 2x

Which angle is adjacent to ADB?

Answers

the angle adjacent to ADB is ADC.

“Adjacent” means “next to,” and by following the lines

A to D
then D to C

the angle becomes ADC.

To find the angle next to ADC, follow

A to D
and D to B

to get angle ADB.

Please answer this question fast.

Answers

Answer:

1.5

Step-by-step explanation:

[tex]30\div20[/tex]

The solution is, the scale factor is 1.5.

What is scale factor?

A scale factor is when you enlarge a shape and each side is multiplied by the same number. This number is called the scale factor. Maps use scale factors to represent the distance between two places accurately.

here, we have,

given that,

from the given diagram, we get,

there are two squares with side 20 and, 30

one square is scaled copy of the other,

so, the scale factor is :

length of scaled square/ length of normal square

= 30/ 20

=3/2

=1.5

Hence, The solution is, the scale factor is 1.5.

To learn more on scale factor click:

brainly.com/question/5992872

#SPJ5

According to some estimates, our galaxy, the milky way contains about two hundred billion stars. Use digits to write that number of stars

Answers

Answer: 2,000,000,000
100 billion explanation: Our Milky Way galaxy is just one of the billions of galaxies in the universe. Within it, there are at least 100 billion stars, and on average, each star has at least one planet orbiting it. This means there are potentially thousands of planetary systems like our solar system within the galaxy!

Please help,
(It’s due tomorrow by the way)

Answers

Answer:

50x5

Step-by-step explanation:

The equation will be 50 x 5

5 (10.3) - 4 ( 2 - 2y)

Answers

The answer your looking for is 43.5 + 8y
The answer is 8y + 43.5

What is the distance between -4 and its' opposite on the number line? 4 8 - | -8| -4

AWNSER CORRECTLY PLEASE I NEED TO RASIE MY GRADE SOMEONE PLEASE ASAP AND CORRECTLY

Answers

The distance between -4 and its opposite on the number line is 8 units

We know that opposite of 4 is −4.

So, we need to find the distance between 4 and −4 on number line.

We know that absolute value of −4 and 4 is 4

So, the distance between −4 and 4 is 8 units.

-4 and 4 is 8 (distance)

We know this beach they are on opposite sides of the number line, you have to add the points and then you get the distance.

Pls solve show each step

Answers

The scale is 1cm = 50m

So height in model = 381/50

                                = 7.62cm

Answer: 7 31/50 cm

Step-by-step explanation:

The scale is 50 m = 1 cm

381 divided by 50 is 7 r31

This means that the height of his model in centimeters is 7 31/50 cm.

Hope this helps!

petra jogs 3 miles in 27 minutes. find the unit rate in minutes per mile. how long would it take for her to jog 5 miles? show your work.

Answers

Answer: It would take her 45 minutes to jog 5 miles because first you have to divide 27 by 3 and you get 9 and then you multiply 9 by 5 and you get 45

27/3 = 9 minutes per mile 9X5 = 45 it would take her 45 min

Please Help!!! I will give brainlist if right and explained!!!
Mr. Lewis borrows $4,200 from his bank to buy a motorcycle. The loan has a 5% annual simple interest rate. If it takes Mr. Lewis three years to pay back the loan, what is the total amount he will be paying back?
(include the $ symbol)

Answers

Answer:

$4,200 + $4,200(.05)(3) = $4,830

Step-by-step explanation:

Principal = $4,200

Interest = $4,200(.05)(3) = $630

Total = $4,200 + $630 = $4,830

Write an inequality and use substitution to solve the following problem:
A couple is remodeling a room in their house. They have already purchased carpet for the room for $2,000. If their budget is a maximum of $5,100, determine which of the following costs they can afford for a furniture set.
Check all that are true.

$7,100

$3,050

$3,400

$5,300

$5,100

Answers

Answer:7100

Step-by-step explanation:

Answer: the answer is 7100 your welcome!!!!!

Please add explaination

Answers

You count the number of blocks in hight then in length and multiply the answers
It’s around 18 count the inner blocks and see if the ones that aren’t full blocks are equal Im pretty sure it’s 18 I might be wrong if I am that’s embarrassing for me.

1) Is this figure a polygon? Yes or no.

Answers

Answer:no

Step-by-step explanation:

it does not have 4 sides.

no it is not a polygon

PLEASE HELP! DUE TODAY

Find the area of the irregular figure.

Answers

Answer: 4,763cm

Step-by-step explanation:

figure out the first rectangle, 70 x 48=  3360

Then find the bottom number with the inner height 38 x 23 = 874

Next, you would move the triangle that is dotted over to the undotted on on the right to get a square giving you 23 x 23 = 529

In the end you add it all 3,360 + 874 + 529 = 4,763

4970

1. find the area of the big space which is 70x48 which is 3360
2. then find the area of the smaller rectangle which is 38x23 and that’s 874
3. than you’re stuck with the two triangles and we know two triangles is a square. you’re going to subtract 70 by 38 because that’s the total area minus the amount we already know and you get 32. you’re going to multiply 32 and 23 and get 736. add those together

WILL MARK BRAINLIEST!!!!!!
A city just opened a new playground for children in the community. An image of the land that the playground is on is shown.

A polygon with a horizontal top side labeled 50 yards. The left vertical side is 35 yards. There is a dashed vertical line segment drawn from the right vertex of the top to the bottom right vertex. There is a dashed horizontal line from the bottom left vertex to the dashed vertical, leaving the length from that intersection to the bottom right vertex as 18 yards. There is another dashed horizontal line that comes from the vertex on the right that intersects the vertical dashed line, and it is labeled 20 yards.

What is the area of the playground?

1,750 square yards
1,855 square yards
2,730 square yards
3,710 square yards

Answers

Answer:

1250

Step-by-step explanation:

To calculate the area of the playground, we need to divide it into two smaller polygons: a rectangle and a right triangle.

The rectangle has a width of 50 yards and a height of 18 yards, so its area is:

50 yards x 18 yards = 900 square yards

The right triangle has a base of 20 yards and a height of 35 yards, so its area is:

(20 yards x 35 yards) / 2 = 350 square yards

The total area of the playground is the sum of the areas of the rectangle and the triangle:

900 square yards + 350 square yards = 1250 square yards

Therefore, the answer is not listed among the options provided. Perhaps there was an error in the given dimensions, or the correct answer was not included.

whats the surface area of this rectangle?

1cm 8cm 4cm

Answers

Question:

whats the surface area of this rectangle?

1cm 8cm 4cm

Answer:

13 cm

1cm + 8cm + 4cm = 13cm
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