A rectangle’s width is 2 meters shorter than its length, l. Its area is 168 square meters. Which equation can be used to find the length of the rectangle?

A. l(l – 2) = 168
B. l(l + 2) = 168
C. 2l 2 = 168
D. l 2 = 168

Answers

Answer 1

Answer:

A

Step-by-step explanation:

The area (A) of the triangle is the product of its length (l) and width (w). A = l x w. Since the width is 2 m shorter than the length, it may be expressed as w = l -2. The equation for area becomes,

                         A = l x (l - 2)

Substituting the known area and rearranging the equation gives,

                          l(l - 2) = 168.

Answer 2

Answer:

A

Step-by-step explanation:

Let length be "l"

width = l-2 m

Area of rectangle = length * width

so l(l-2) = 168

P.S: L= 14 cm


Related Questions

Distributing the - sign outside the parentheses -(6y-9.6z+3)

Answers

Answer:−6y+9.6z−3

Step-by-step explanation:−(6y−9.6z+3)

−6y+9.6z−3

Guven O centre of the circle, find x

I just want to check my answers. my answer is x= 24.5⁰
If it is wrong is tell me in the comments.
and if you know the right answer, please answer the question with full explanations.
thanks.

Answers

Answer:

x= 21 is correct answer because x and 21° are opposite angles and opposite angles are congruent

Answer:

21 degrees

Step-by-step explanation:

Angle subtended by the arc is half the angle at the centre of the circle(98 degrees).

Jamie is looking for the rate and unit rate of the following ratio below.


12 napkins costs 20 cents
What is the rate AND unit rate of this ratio?

Answers

Answer: in explanation

Step-by-step explanation:

Rate is simplest form, so 3 napkins for 5 cents.

Unit rate is for 1 x value, so 1 napkin for 0,6 cents.

which pair of terms are not like terms?
A. 4a and 7a
B. 3p^2q and -p^2q
C. 2mn and mn^2
D. -x and 3x

Answers

Answer:

C.

Step-by-step explanation:

Like terms must have exactly the same variables and exactly the same exponents.

In C., you have mn and mn^2. That makes the variable parts not the same, so they are not like terms.

Answer: C.

50 POINTS PLZ HELP What is the common denominator (LCD) of 6 5/7 and 6 1/3?

Answers

Answer:

21

Step-by-step explanation:

Denominators of the fractions are 7 and 3, which are mutually prime numbers.

The LCD is the product of 7 and 3:

7*3 = 21

Simplify into mixed fraction

[tex]\\ \sf\longmapsto 6\dfrac{5}{7}=\dfrac{47}{7}[/tex]

[tex]\\ \sf\longmapsto 6\dfrac{1}{3}=\dfrac{19}{3}[/tex]

Find LCD

[tex]\\ \sf\longmapsto 7(3)[/tex]

[tex]\\ \sf\longmapsto 21[/tex]

5trig review please help me

Answers

Answer:

Is A

Step-by-step explanation:

Answer:

4).3√42ft

5).√3 yd

.....................

PLEASE HELP QUICK!! the cost of one litre of fuel in May 2015 was $0.88. this was a decrease of 20% on the cost in may 2014. calculate the cost of one litre of fuel in may 2014​

Answers

Answer:

$1.1

Step-by-step explanation:

[tex] \frac{100}{price \: before \: \: decrease \: (x)} \: = \frac{100 - 20}{0.88} [/tex]

[tex] \frac{100}{x} = \frac{80}{0.88} [/tex]

Cross multiply

80x = 88

X = 88/80

X = 1.1

the cost of one liter of fuel in May 2014 was $1.10.

Let's denote the cost of one liter of fuel in May 2014 as "x" dollars.

According to the information given, the cost of one liter of fuel in May 2015 was a decrease of 20% on the cost in May 2014. This means that the cost in May 2015 was 80% of the cost in May 2014.

Mathematically, we can express this as:

Cost in May 2015 = (100% - 20%) * Cost in May 2014

0.88 = 0.8 * x

Now, let's solve for "x" (the cost in May 2014):

x = 0.88 / 0.8

x = 1.10

So, the cost of one liter of fuel in May 2014 was $1.10.

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What's the answer ??

Answers

Answer:if one part is bigger than the other then its bigger

this should help

Answer:

(8 × 3) + (8×2)

Step-by-step explanation:

PLS HELP QUESTION 8 ASAP ILL GIVE BRAINLIEST

Answers

Answer:

Ryan sold 12 cell phones

Step-by-step explanation:

2000+15x12

Write the slope-intercept form of the equation of the line described.
Through: (5, 4), parallel to y = x-5

Answers

Answer:  y = x - 1

Step-by-step explanation:

Find the slope of the parallel line

When two lines are parallel, they have the same slope.

                ⇒  if the slope of this line = 1

                     then the slope of the parallel line (m) = 1

Determine the equation

We can now use the point-slope form (y - y₁) = m(x - x₁)) to write the equation for this line:  (5, 4)  

                              ⇒  y - 4 = 1 (x - 5)                                

                                ∴  y - 4  = x - 5

We can also write the equation in the slope-intercept form by making y the subject of the equation and expanding the bracket to simplify:

                     since    y - 4 = x - 5

                                 y = x - 1

To test my answer, I drew a Desmos Graph with the information provided in the question and my answer.                        

approximate the number ∛-12 to the nearest a) integer and b) tenth

Answers

Answer:

Below in bold.

Step-by-step explanation:

∛-12

The nearest cube  to -12 is -8    ( -27 is the next after -12)

a) The answer is -2.

b) we can do this by trial and improvement

It must be between -2 and -3, closer to -2 than 3 so first we guess -2.1

(-2.1)^3 = -9.261

(-2.2)^3 = -10.648

(-2.3)^3 = `2.167  - very close

Answer is -2.3 .

please help me
17.97 = n/3 − –14

Answers

Answer:

n=11.91

Step-by-step explanation:

I'll give Brainliest and 45 points: A box of cooked whole wheat spaghetti contains 8 servings and has 28 grams of fiber.
How much fiber per serving does the spaghetti have?

Answers

Answer:

3.5 grams

Step-by-step explanation:

8/8=1, 28/8=3.5

3.5 grams per serving

3.5 and/or 3/5 grams of fiber.


28 / 8 = 3.5
(Divided by)

True or false: This system of equations has no solution.
y=4/32x+2 y=2/16x-1

Answers

True

as they are parallel, and they have different y-intercepts; they will never cross.

Thus, no solution exists

What is the solution to this inequality?
X-8 > -3
A. x < 5
B. X> 5
C. X4-11
D. X> -11

Answers

Answer:

B

Step-by-step explanation:

[tex]x - 8 > - 3 \\ x > 5[/tex]

Lucy spent $3.19 on a sparkly headband and $2.67 on a shiny bracelet. How much more did Lucy spend on the sparkly headband?

Answers

Answer:

$0.52

Step-by-step explanation:

3.19 (headband) - 2.67 (bracelet) = 0.52

Lucy spent 52 cents more on the sparkly headband than the shiny bracelet.

To find the answer, you would subtract the amount of the sparkly headband with the amount of the shiny bracelet, which would leave you with a sum of 0.52 cents.

3.19-$2.67=0.52

i have no clue how to do this n it’s in f tmrw pls help lol

Answers

Area = w × h

w = width

h = height

What is the answer to this???
28x^4 / 56x

Please answer asap with explanation

Answers

Answer:

1/2 x3

Step-by-step explanation:

Please explained that answer!

Answers

Answer:

f(x)= -1/2x+1

Step-by-step explanation:

The slope is negative because the graph goes up then to the left, making it negative. The slope is also 1 half because the slope is measured by rise over run. It rises once, then goes to the left twice. 1/2. It's also plus 1 because the graph cross the y-intercept at positive 1.

Dr Michael prescribes 300mg a day of medicine to a patient. Each pill has 15mg of medicine. How many pills will the patient need for

Answers

Answer:

20

Step-by-step explanation:

15 x 10 = 150. 150 x 2 = 300. 300mg = 20 pills.

What is the equation of the line in point slope form given a slope of -12 and a point of (-4,
-5)?

Answers

Answer:

The equation of a line in point-slope form is y-Y1=m(x-X1). ”m” is the slope and (X1,Y1) is a point.

So, the equation in point-slope form is y+5=12(x+4).

:)

there are 7 rows of 9 people how many are there in all

Answers

Answer:

63 people

Step-by-step explanation:

1 row = 9 people

7 rows = 7 x 9 = 63 people

-> There are 63 people in total

Hope this helps!

i= $100.10
p= $1100
r= 10.0%
t= ? years

Answers

Step-by-step explanation:

1 year

thabkyou for brainly

help me pls help please???

Answers

Answer:

3 – x

Step-by-step explanation:

A number in this case we will as x. And 3 less than x is -

3 – x

x - 3

Hope i helped ya!

Stephan is having a fundraising and decides to sell some candy. He bought the box for $20, and
charges $0.50 per candy that he sells. How many does he need to sell in order to make a profit?

Answers

Answer: he would need to sell at least 41 candies to make a profit

Divide. Give the quotient and remainder. 47 ÷ 5​

Answers

Answer:

9 Remainder 2 which is also 9.4

Step-by-step explanation:

The closest to a full number would be 9. So do 9*5 to get 45. With a remainder of 2.

Brainliest maybe? I need one more and I level up in rankings.

Answer:

9 remainder 2.

Step-by-step explanation:

5 * 9 = 45

47 - 45 = 2.

Given: F(x)= 2x - 1; G(x)= 3x + 2; H(x)= x^2
Find F(x) + G(x) + H(x)

Answers

Answer:

4

Step-by-step explanation:

Answer: 6x^2+1

(very sorry if this is wrong lol)

Step-by-step explanation:

Substitute all the given numbers into the equation, by doing so this should give you 2x-1+3x+2+x^2.

Since we have a group of x’s add them together, which would make 6x^2, this leaves our -1 and +2 add these these two numbers together to make plus one and finally you will have 6x^2+1

i need to know which object is moving faster

Answers

Answer:

B

Step-by-step explanation:

It has a not as steep incline

proves that the sum of
5 consecutive natural numbers is divisible by 5 ​

Answers

Answer:

n = 5m + 10 = 5(m + 2), since m + 2 is an integer, then the n is divisible by 5.

Step-by-step explanation:

Answer:

Natural numbers are simply positive integers.  For now, refer to the middle number (the third number), as x.  Thus, the numbers are: x - 2, x - 1, x, x + 1, and x + 2.  Simply add all these numbers to get 5x, a number that is divisible by 5.  As such, you can conclude that any 5 consecutive numbers are divisible by 5, and the quotient would be the third, or middle number.

Hope it helps :) and let me know if you want me to elaborate.

Write the expression as a power and evaluate it. 8*2^7

Answers

Answer:

1024

Step-by-step explanation:

The expression can be written as [tex]8 * 2^7[/tex]

What is power?

An algebraic expression known as a polynomial requires that all of its exponents be whole numbers. Any polynomial must have variable exponents that are non-negative integers. Although a polynomial contains variables and constants, we are unable to divide a polynomial by a variable.

Example: The standard form of the polynomial 5 + 2x + x² is expressed.

We shall first determine the polynomial's degree before expressing it in standard form.

The degree of the provided polynomial is two. Write the phrase containing the polynomial's degree.

Given:

8*2^7

The above expression can be written as

[tex]=8 * 2^7[/tex]

= 8 x 128

= 1024.

Hence, the expression can be written as [tex]8 * 2^7[/tex]

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