the expression for perimeter of a rectangle
with a length of (x + 7) and a width of (2x)

Answers

Answer 1

Answer:

P = 6x + 14

Step-by-step explanation:

P = 2l + 2w

where P is perimeter, l is length, and w is width

l = x + 7

w = 2x

So P = 2(x+7) + 2(2x)

Distribute the 2 to the x and 7.

P = 2*x + 2*7 + 2*2x

Multiply each term out

P = 2x + 14 + 4x

Group the xs

P = 2x + 4x + 14

Combine like terms

P = 6x + 14


Related Questions

What is the horizontal shift for the absolute value function below? Explain how you know using complete sentences.
F(x)=3 | x+6 | +9

Answers

Answer:

The horizontal shift is 6 units left (so -6).

Step-by-step explanation:

The horizontal shift is located inside the absolute value bars. While F(x) adds 6 to x, so you may think it's 6 units right, horizontal shifts are backwards as opposed to vertical shifts: we go 6 units left.

Pls Help!! Alex is making bows for her friends out of a long piece of ribbon. A. Alex needs 9 inches of ribbon to make a bow. If she has a foot of ribbon, what fractional part of this length of ribbon is needed to make a bow? (Note: 1 foot = 12 inches)​
Also explain how you found your answer.

Answers

Answer:

3/4 of the ribbon is needed to make a bow

Step-by-step explanation:

12 ÷ 4 = 3

so out of that foot of ribbon you use 3/4 of it for the bow

What is the range of the function represented by this graph?

Answers

Answer:

A. y ≤ 1

Step-by-step explanation:

according to the graph, the coordinates of maximum value is (-3, 1) and besides the graph towards down, so, the range of the function is y 1

Please help...

ITS URGENT!!!!!!!!!!!!!!!!

Answers

Answer:

3.2 × 10⁻²

Step-by-step explanation:

→ First multiply the whole numbers

8 × 4 = 32

→ Now add the powers

32 × 10⁻³

→ Convert into standard form

3.2 × 10⁻²

what’s the solution of 4= -2(x-3)

Answers

Step-by-step explanation:

Simplifying 4 + -2(x + -3) = 24 Reorder the terms: 4 + -2(-3 + x) = 24 4 + (-3 * -2 + x * -2) = 24 4 + (6 + -2x) = 24 Combine like terms: 4 + 6 = 10 10 + -2x = 24 Solving 10 + -2x = 24 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + -2x = 24 + -10 Combine like terms: 10 + -10 = 0 0 + -2x = 24 + -10 -2x = 24 + -10 Combine like terms: 24 + -10 = 14 -2x = 14 Divide each side by '-2'. x = -7 Simplifying x = -7

x=1
first remove ()
so 2=-(x-3)
2=-x+3
x=3-2
x=1

algebra 2A
1.) You and your friends are going on a road trip up the coast to San Francisco to watch the Dodgers play the Giants. The trip is about 810 miles, round trip. The car you are driving gets 288 miles on a full tank. How many times will you need to fill up your tank to make the round trip? ​

Answers

Answer:

3 times

Step-by-step explanation:

Equation: 810 = 288x

x = 2.8 meaning you need to fill up the tank 3 times

-2x - 4 > 8 how much is this

Answers

[tex]\\ \sf\longmapsto -2x-4>8[/tex]

[tex]\\ \sf\longmapsto -2(x+4)>8[/tex]

[tex]\\ \sf\longmapsto x+4>\dfrac{8}{-2}[/tex]

[tex]\\ \sf\longmapsto x+4>-4[/tex]

[tex]\\ \sf\longmapsto x>-4-4[/tex]

[tex]\\ \sf\longmapsto x>-8[/tex]

Answer:

x < -6

Step-by-step explanation:

-2x - 4 > 8

Add 4 on both sides

-2x > 12

Divide -2 on both sides

x < -6

Hope this helps!

Which matrix multiplication is possible?
o [o 3]-[1 -4
o
:I::
T:
11:40
30

1
4

Answers

Answer: D

Step-by-step explanation:

dim A=(a,b), dim B=(c,d), in order to multiply, c=b

1) dim A=(1,2) , dim B=(1,2) but 2≠1

2) dim A=(2,1) , dim B=(2,2) but 1≠2

3) dim A=(2,2) , dim B=(1,2) but 2≠1

4) dim A=(2,1) , dim B=(1,2) 1=1: result (2,2)

Plz Help me!

Question is shown in the image

Answers

Answer:

Here,

X=(1,4,7,9)

Y=(2,4,5,9)

Now,

i=(1,2,4,5,7,9)

ii=((4,9)

iii=(1,2,4,5,7,9)

iv=(4,9)

Javier is constructing a door for his son's tree house. The dimensions of the rectangular door are 6a^2-a+2 feet and 3a^2+5 feet. He wants to cut out a square from the door to insert a glass panel, as per the diagram below. The glass panel will have a height of a -3 feet.After Javier removes the square for the glass panel, how much of the door will be made from wood?

Answers

The area of a figure is the amount of space the figure can occupy. [tex]18a^4 + 10[/tex] of the door will be made from the wood.

Given

[tex]Length = 6a^2 + 2[/tex]

[tex]Width = 3a^2 + 5[/tex]

First, calculate the area of the rectangular door

[tex]Area = Length \times Width[/tex]

[tex]Area =(6a^2 + 2) \times ( 3a^2 + 5)[/tex]

[tex]Area = 18a^4 + 6a^2 + 30a^2 + 10[/tex]

[tex]Area = 18a^4 + 36a^2 + 10[/tex]

Next, calculate the area of the glass panel

The dimension of the glass panel is not given, and the diagram is not attached. So, I will assume the dimension of the square glass panel is [tex]6a[/tex].

So, the area of the glass panel is:

[tex]Area = 6a \times 6a[/tex]

[tex]Area = 36a^2[/tex]

To calculate how much wood that will be needed for the rectangular door, we simply subtract the area of the glass panel from the area of the door

[tex]Wood = 18a^4 + 36a^2 + 10 - 36a^2[/tex]

Collect like terms

[tex]Wood = 18a^4 + 10 + 36a^2 - 36a^2[/tex]

[tex]Wood = 18a^4 + 10[/tex]

Considering the assumed value, [tex]18a^4 + 10[/tex] of the door will be made from the wood.

Learn more about areas at:

https://brainly.com/question/16418397

3 x 52 x a = a x 2 x 78

Answers

True they both equal 156

-9+__ =-3 find the missing value

Answers

Answer:

6

Step-by-step explanation:

-9+6=-3

6 is the answer for -9+_=-3

help help help help help

Answers

Answer:

the answer is c

Step-by-step explanation:

x - 7, y + 6

- 1 - 7, 4 + 6

- 8, 10

i think the answer would be c (-8,10)

How do you translate "Forty more than triple a number, x." in a variable expression.​

Answers

Answer:

3x + 40

Step-by-step explanation:

"More" means addition and "Triple" indicates multiplication.

So, 3x + 40 is the answer.

Nancy’s grandma needs 5/8 of a yard of lace for each doll hat she makes. How many doll hats can she make with 10 yards of lace?

Answers

Answer:

16

Step-by-step explanation:

5/8= 0.625

10/0.625= 16

4. Find a pair of irrational numbers whose product is an integer.

Answers

Answer:

√2 and √3

Step-by-step explanation:

Answer:

Step-by-step explanation:

√2 and 5√2 are two irrational numbers

√2 * 5√2 = [tex]5*\sqrt{2*2} = 5 * 2 = 10[/tex]

and here 10 is an integer

where is the hundredths place in

12.083

?

Answers

Answer:

12.08

Step-by-step explanation:

plz help me its due in 10 min 37 points

Answers

Answer:

1. Reason: Given

2. segment PQ is similar to segment PS

3. Reason: Same segment

4. Reason: Side-side-side theorem.

Step-by-step explanation:

Answer:

3 PR=PR

Step-by-step explanation:

show TRI PQR CONGRUENT TRI PSR

QR=SR(GIVEN)

PQ=PS(GIVEN)

PR=PR(COMMON SIDE)

SO BOTH CONGRUENT

4.7x2 + 9x = 0

We’re using the quadratic formulas and there is no c in the question. Do you do it and just not put the c in the equation? Or is there another way?

Answers

C would be equal to 0 in this equation

Hey there! I'm happy to help!

In this case c is equal to 0. There is always a, b, and c, but they might be invisible (for example if a is 1 or b or c are 0).

Then you can choose whichever method you like to factor these (completing the square, quadratic formula, factoring, etc.)

The zeros should be 0 and a number that is about -1.9.

Have a wonderful day and keep on learning! :D

Okay so like for integers I use a number line to help me like negative on one side and positive on the other but how do I deal like with these problems? And please explain :)

Answers

Answer:

Step-by-step explanation:

remember this:-

if +,- comes: change sign to - (eg. 8+(-4)= 8-4=4)

if -,+ comes: change sign to - (eg. 8-(+4)= 8-4=4)

if -,- comes: change sign to + (eg. 8-(-4)=8+4=12)

if +,+ comes: change sign to + (eg. 8+(+4)=8+4=12)

help me, please everyone;-;

Answers

Step-by-step explanation:

Using the power law of indices:

When two numbers with the same base multiply,add the exponents that is

[tex] {a}^{2} \times {a}^{3} = {a}^{2 + 3} = {a}^{5} [/tex]

Again,when two numbers with the same base divide, subtract the exponents,that is

[tex] {a}^{2} \div {a}^{4 } = {a}^{2 - 4} = {a}^{ - 2} [/tex]

There are way too many examples that is why I have elaborated the two laws for your perusal.

So for instance:

1.

[tex] {2}^{2} \times {2}^{5} = {2}^{7} [/tex]

Answer:

2² × 2⁵ = 2⁷

            = 128

4⁴ × 4⁶ = 4¹⁰

           = 1048576

6² × 6⁷ = 6⁹

           = 10077696

9⁸ × 9⁸ = 9¹⁷

           = 1.6677182e+16

Do try the rest out yourself!!! You can do it!!!

CAN SOMEONE PLEASEEEE HELP/EXPLAIN THIS ASAP !!!

Answers

Answer:

5th figure is not symmetrical

comment if doubt

Can someone please explain how to find the difference -7 - (-8)

Answers

Answer:

1

Step-by-step explanation:

In the equation -7 - (-8), there are two 'minus' signs; we can convert two minus signs into a plus sign according to the 'minus minus equals plus' rule, that would make the equation (-7) + 8 for which the answer is +1.

Answer:

1

Step-by-step explanation:

-7-(-8)

First you should solve the brackets.Remeber (-) minus into (-) equal (+)

therefore;

  -7-(-8)= -7+8

when there is a minus and a plus you should minus the two numbers and put the largest value sign.

therefore;

   -7+8= 1

Hope you understand.If you have any problem just ask me I will solve it.

What is the slope of What the slope of (6, -1) over (7, 3)​

Answers

Answer:

4

Step-by-step explanation:

We can find the slope using the slope formula

m = ( y2-y1)/(x2-x1)

    = ( 3 - -1)/( 7-6)

    = ( 3+1)/( 7-6)

    = 4/1

   =4

Rewrite each angle in radian measure as a multiple of π.

540°


Rewrite each angle in degree measure.

-4π

Answers

Answer:

Step-by-step explanation:

540° = 360° x 1 + 180°

= 2π + π

= 3π

CMIIW

Marcie solved the following inequality, and her work is shown below.

What mistake did Marcie make in solving the inequality? (9th grade Algebra 1)

Answers

Answer:

She didn't change the direction of the sign

Step-by-step explanation:

When dividing both sides by a negative number in an inequality, you must change the sign.

The length of a rectangle is 11cm more than the width. The perimeter is 90cm. Find the length and width of the rectangle.

Answers

Answer:

Length=22.5cm, Breadth=11.5cm

Step-by-step explanation:

Let length be l and width be w.

w+22=l

w+w+w+22+w+22=90

4w=90-22-22

    =46

w=46 divided by 4

  =11.5

l=11.5+11

=22.5

Hence,

Length of rectangle=22.5cm

Breadth of rectangle=11.5cm

What is $4.32 • 20= ???
I have never seen • in a math question before and I looked it up and it didn’t tell me anything. So can someone help me plzzz

Answers

The answer should be 84. I hope that helped

100 100
What is the decimal form of
3,5
100
and ? Determine whether each
6
decimal repeats or terminates.



Help me please need answers know and please no links.

Answers

3.0
5.0
100.0
Terminates

One-fourth of a number decreased by 12 is 6. Find the number.​

Answers

Answer: 1/4n-12=6

1n/4-12=6

n=72

Step-by-step explanation:

Answer:

72

Step-by-step explanation:

let the number be n , then

[tex]\frac{1}{4}[/tex] n - 12 = 6 ( multiply through by 4 to eliminate the fraction )

n - 48 = 24 ( add 48 to both sides )

n = 72

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