The area of a rectangle is represented by the polynomial x^2+3x-6x-18. What are the length, width, and area of the rectangle if x=12?

Answers

Answer 1

Answer:

Length = 15

Width = 6

Area = 90

Step-by-step explanation:

Area of the rectangle = [tex] {x}^{2} + 3x - 6x - 18[/tex]

Lets factorise the polynomial

[tex] = > x(x + 3) - 6(x + 3)[/tex]

[tex] = > (x + 3)(x - 6)[/tex]

We know that Area = Length × Width

Let the length be (x + 3) & width be (x - 6)

Its given in the question that x = 12. So putting the value of x gives ,

Length = [tex]x + 3 = 12 + 3 = 15[/tex]

Width = [tex]x - 6 = 12 - 6 = 6[/tex]

Area = Length × Width = 15 × 6 = 90


Related Questions

How do I divide 3 1/3 by 2/9

Answers

Answer:

15

Step-by-step explanation:

thats the answer im not sure if u want me to explain it. But if you do need it to be explained look it up. Give brainliest please.

Answer:

15

Step-by-step explanation:

Turn 3 1/3 to an Improper Fraction

to do that you have to multiply the Whole Number (3) by the Denominator(3)

3×3=9

Then add the numerator (1)

9+1=10

3 1/3 will turn into 10/3

then since you're divided you're going to have to KCF(Keep, Change, Flip)

2/9 will turn into 9/2

When you Flip, Divison will turn into Multiplcation

Look at the picture on how to solve it....

Could you describe the expression 2(3+4) as a product of two factors?​

Answers

the answer will be 10 just multiply the numbers

these are answers

Use the algebra tiles to model x – 3.

Then complete the statements.

The variable is represented by
✔ one orange x tile
Subtracting three is represented by
✔ three blue – tiles
.
The tiles represent
✔ subtracting 3 from
an unknown number.

Answers

yuh the answers: a, d, d, for anyone who didnt understand

Answer:

A.D.D

Step-by-step explanation:

On Edge 2022

HOPED THIS HELPED YOU OUT

LESSON 7 DEVELOP
MODEL IT: PLACE-VALUE CHARTS
Use place-value charts to show multiplying and dividing by powers of 10.
3 Complete each row with the product shown to the right of that row.
Ones
Tenths
Hundredths
Thousandths
.
0
0
0
5
.
0.005 X 10'
0.005 X 102
0.005 X 10
4 Complete each row with the quotient shown to the right of that row.
Ones
Tenths
Hundredths
Thousandths
DIS
5
0
.
0
0
5 + 10
How
digits
the do
when
5 - 102
any d
5 - 10
I thin

Answers

Hundredths, i believe

4
Maurice et son frère achètent un film qui coûte 26$. Maurice débourse 4 fois plus d'argent que son frère. Quelle est la
part payée par chacun des frères?

Answers

Answer:

Je ne parle pas français donc j'utilise un traducteur. J'espère qu'il n'y a pas trop d'erreurs. Le frère de Maurice a dépensé 5,20 $ et Maurice 20,80 $

Step-by-step explanation:

Of the 100 students that were surveyed 36 students say
they were on their phone less than one hour a day. Of the
55 females, 40 use their phone more than one hour a
day. How many males say they use their phone less than
one hour a day?
HELP

Answers

Answer:

15 females say they use their phone less than an hour a day

36 - 15 = 21 males that use their phone less than an hour a day

(equation above is the total number of students that use their phone less than an hour a day, with the 15 females that do being subtracted from it. that will leave the number of males that use their phone less than an hour a day, which is your answer.)

What’s the height of the tree

Answers

I’m pretty sure it’s 132

Look at the following expression. Which operation should be done first?
23 – 5 × 4 + 32 (a small 2 next to the 3)
1.) 5 × 4
2.) 32 (small 2)
3.) 4 + 3
4.) 23 – 5

Answers

Answer

2.

Step-by-step explanation:

CAN ANYONE HELP ME PLEASE!!!!!!

Which of the following points is in the solution set of y < x²- 4x + 3?

A. (-3,0)

B. ( 1, 0)

C. (2,-1)​

Answers

Not sure if this helps

4xr=14 pls i need help.

Answers

Answer: x =7/2 or r = 7/2 so this means there the same.

Step-by-step explanation:

>> Answer

_________

[tex] \: [/tex]

4 × r = 14

4r = 14

r = 14/4

r = 7/2

r = 3½ or 3,5

algebra 2!! please help im begging. i don’t understand this at all. thank you!

Answers

Answer:

Step-by-step explanation:

so the square root of 6 is the multipyed number of 8 plus 2 divided by9 is to times 8 plus 6

What is the sum (-19X10) + 7

Answers

Answer:

-19×10= -190

-190+7= -183

The depth (inches) of water that accumulates in the spring soil from melted snow can be determined by dividing the cumulative winter snowfall (inches) by 12. Determine the amount of winter snow that accumulates 6 inches of water in the soil.
a.
6 inches of snow
b.
84 inches of snow
c.
72 inches of snow
d.
12 inches of snow

Answers

Answer:

C

Step-by-step explanation:

its just 12 times 6

Answer:

c

Step-by-step explanation:

I took the test and got it right

Simplify.
√64x12
Assume that the variable x represents a positive real number.
I
Х
$
?.

Answers

Answer:

[tex]=32 \sqrt{3x[/tex]

Step-by-step explanation:

Given that:

[tex]Simplify \ \sqrt{(64x)(12)}[/tex]

[tex]When \ simplifying \ radicals, we \ split \ them \ up by \ their \ factors[/tex]

i.e.

[tex]=\sqrt{64} \ * \sqrt{12} \ * \sqrt{x}[/tex]

[tex]=8 \ * 4\sqrt{3} \ * \sqrt{x}[/tex]

[tex]=32 \sqrt{3x[/tex]

Look at pic and pls halp

Answers

70° because the angle between jk is 110 after subtracting 70 from 180. For angle 1, subtract 110 from 180 to get 70

Tom bought a pen for $30
and sold it to gain
20% on his cost price. How much money
did he gain?

Answers

Answer:

he gained 6 dollars

Step-by-step explanation:

30 x 0.2

Tom bought a pen for $30 and sold it to gain 20% on his cost price that he gained 6 dollars.

How to calculate unit price of something?

Unit means 'single entity', the fundamental constructing block. Usually, it is 1 in mathematics and science.

Thus, unit price of something is price of 1 thing.

Lets suppose we're taking about price of mangoes, then unit price will denote the price of 1 mango.

It is given that Tom bought a pen for $30 and sold it to gain 20% on his cost price.

Therefore,

30 x 20%

30 x 0.2 = 6 dollars

Thus, he gained 6 dollars.

Hence, Tom bought a pen for $30 and sold it to gain 20% on his cost price that he gained 6 dollars.

Learn more about unit price here:

https://brainly.com/question/945712

#SPJ6

Steve Drive 78 miles on 3 gallons of gas find the miles per gas

Answers

Answer:

26 miles per gallon

Step-by-step explanation:

78/3=26

From the figure and statement provided, select the proper TO PROVE Statement.

If two parallel planes are cut by a third plane, the lines of intersection are parallel.

MN= 1AB

AB- BC= AC

M is parallel to

AB= BC

a is parallel to B

Answers

Answer: a is equal to b

Step-by-step explanation:

Answer:

a is parallel to b

Step-by-step explanation:

Please help
x2 + 14x + 37 = 0

Answers

Answer:

x = −37/16

This is the value of x which completes the equation properly, unless you mean x^2 instead of x2.

One out of every 4 students in a club is a girl. There are 20 students in the club. How many girls are in the club? Explain how you know

Answers

Answer:

5 girls because 1/4 times 20 is 20/4 which gets 5

Step-by-step explanation:

because 1/4 times 20 is 20/4 which gets 5

x/-3+11=8
can anybody help?

Answers

Answer:

httfjydkyhfkugfufluyfluyflu

Step-by-step explanation:

Answer: [tex]x = 0[/tex]

Step-by-step explanation:

First, we need to get x alone.

To do this we must add -3 + 11. Which will get you 8.

The new equation will now be: [tex]x / 8 = 8[/tex].

Then, we continue to evaluate by subtracting 8 from the area where x is. But as you know, what we do to one side. We must do to the other.

So we subtract 8 from one side, and we subtract 8 from the other.

So the last equation would be.

[tex]x = 0[/tex]

50 POINTS!!!There were 50 questions on Vince's math test. He answered 45 questions correctly. What percent of the questions did Vince answer correctly?

Answers

Answer:

90%

Step-by-step explanation:

50 x 2 is 100

40 x 2 is 80

5 x 2 is 10

80 +10 = 90

find the measure of the angle indicated with a?, and enter the number only​

Answers

9514 1404 393

Answer:

  45°

Step-by-step explanation:

Arc YZ is the difference between the given arcs and 360°:

  126° +144° +YZ = 360°

  YZ = 360° -270° = 90°

The inscribed angle (?) is half the measure of the arc it intercepts:

  ? = 90°/2

  ? = 45°

Find the value of 3_5

Answers

Answer:

The answer is 243.

Step-by-step explanation:

[tex] {3}^{5} \\ 3 \times 3 \times 3 \times 3 \times 3 \\ 9 \times 3 \times 3 \times 3 \\ 27 \times 3 \times 3 \\ 81 \times 3 \\ 243[/tex]

A store pays $13 for a bicycle helmet and marks up the price by 40% what is the amount of the mark-up?

Answers

Answer:

Step-by-step explanation:

the amount of mark up is

13*(40/100)=5.20

This answer should be correct but isn’t any ideas?

Answers

Answer:

f = 6 cm

g =  8 cm

Step-by-step explanation:

ABCD   f*g = 48

ABCE   f*g + 1/2 (4*f) = 60

48 + 2f = 60

2f = 12

f = 6

g = 48/6 = 8

There are 48 chicken farm, if each farm has a barns how many total are there?

Answers

48•9=432
There are 432 barns
if there are 48 chicken farms and each one has on barn, thatd be 48 time 1 so there are 48 barns too

5(-6 + 4)=..................​

Answers

Answer:

-10

Step-by-step explanation:

5(-6 + 4)

=-30+20

=-10

Answer:

-10 or just 10 in general

Step-by-step explanation:

f(x)= −2x^2 + 8x − 10
{Find } f(-4)

Answers

Answer:

simply you have to substitute (-4) for all the (x) terms-2x²+8x -10-2(-4)²+8×(-4)-10-2(16) - 32 -10-32 -32 - 10-74

4. Connie makes handmade quilts for her grandchildren. Each quilt is 4 ft. by 6 ft. What is the approximate length of the diagonal of the quilt?​

Answers

Answer: 7.2ft not sure if ur rounding answers. If nearest whole number than 7ft.

Step-by-step explanation:

Use Pythagorean theorem.

4^2 + 6^2 = c^2

16 + 36 = 52 = c^2

C = 7.2ft

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