The area of a rectangle is given by x2 - 12x + 35. Determine the length and breadth in
terms of x. Hence, determine the length and breadth if x = 20.
(3)

Answers

Answer 1

Answer:

[tex]x+7; x+5; 27; 25[/tex]

Step-by-step explanation:

First of all, we need to write [tex]x^2+12x+35[/tex] as a product. The easiest way is to find a pair of numbers whose product is 35 and sum is 12. Looking at the product, you notice it's 7 and 5, which added together indeed give 12.

The two side length are thus [tex]x+7[/tex] and [tex]x+5[/tex].

In the specific case, when [tex]x=20[/tex] the two sides measures 27 and 25.


Related Questions

Which of the following is a solution of the equation 9 - 2x = -1?
1) -4
2) 5
3) 4
4) -5

Answers

Answer:

Answer should be 5

Step-by-step explanation:

An expression is shown below.

Place a check next to each equivalent expression.

Answers

Answer:

a,d,e

Step-by-step explanation:

what is the domain and range of the function?

f(x) = (x – 3)​

Answers

Answer:

Domain: (-infinite sign, infinity sign)

Range: (-infinite sign, infinity sign)

OR you can write it as {x|x ∊ R}

the R is real numbers

Which Venn diagram correctly represents the relationship between rational numbers and irrational numbers?


PLEASE HELP!!!

Answers

Answer:

The answer is C.

Step-by-step explanation:

Because rational numbers are part of the irrationals.

There are two major subsets of Real numbers which are rational numbers and irrational numbers

The correct option for the Venn diagram that correctly represents the relationship between rational numbers and irrational numbers is option A because;

A. Rational numbers and irrational numbers have no numbers in common

The reason the above selection is correct is as follows:

Rational numbers are denoted by the capital letter Q, and they can be represented by the ratio of two integers, a, and b, as follows;

[tex]Q = \mathbf{\dfrac{a}{b}}[/tex]

Where;

a, and b, are whole number integers

Rational numbers are one of the two major subsets of real numbers, R

Example of rational numbers are [tex]\dfrac{1}{2}[/tex], 0.85, and [tex]\dfrac{4}{1}[/tex] = 4

Therefore, integers are rational numbers

Irrational numbers: Irrational numbers are real numbers that are not rational numbers, and they are represented by the capital letter, I, they cannot be represented as the ratio of two integers a, and b

Example of irrational numbers are π, √2, and √3

Rational numbers and irrational numbers are different subsets of Real numbers and they have no element in common, therefore, the correct option is option A

Learn more about rational numbers here:

https://brainly.com/question/12606259

eric has a department store coupon worth $15 off the purchase of any men's shoes. at the same time men's shoes are offered with a discount of 1/5 off the original price, but no further discounts may be applied. for what price of shoes does eric pay the same amount for each discount?

Answers

Answer:

answer c part

Step-by-step explanation:

please make me brainlist

3x−y=22y=x−14

Enter your answer in the box.

y =

Answers

Answer:

y= 2.1

Step-by-step explanation:

I use a Graphing Calculator called Desmos. I suggest you try it.

Ms. Donaldson earns $20.00 per hour for the first 40 hours she works in a week. She earns 1 and 1/2 times that amount per hour for each hour beyond 40 hours in a week. Last week Ms. Donaldson worked 45.5 hours. How much money did she earn?

Answers

Answer:

Mrs. Donaldson earned 907.20 dollars.

Step-by-step explanation:

907.20

 11 more than twice a number

use the variable N to represent that

Answers

Answer:

2n + 11

Step-by-step explanation:

You have twice an unknown number n, and you're going to want to have 11 more than that. So you will have 2 x n + 11 or 2n + 11.

Which of the x values are solutions to the inequality 4(2-x)>-2x-3(4x+1)? Check all that apply.
X=-1.1
X=-2.2
X=0
X=-10
X=10

Answers

Answer:

[tex]x =0[/tex] and [tex]x=10[/tex]

Step-by-step explanation:

Answer:

I'm terrible at explaining so here's a screenshot

- Ripper

Step-by-step explanation:

Abdeza bought four Indian tacos. Her sister bought five more. How many people could they feed with everyone got 12 of an Indian taco?

Answers

Answer: None you have 9 tacos or 0.7 you could say

Step-by-step explanation:

The dimensions of this figure are changed so that the new surface area is exactly 1/4 what it was originally.

Answers

Step-by-step explanation:

I assume the changes to the dimensions were made by using the same factor for each dimension, right ?

so, what do we need to do or calculate ? what is the desired result ?

the surface areas ? the new dimensions ? the volume ?

or only the factor of how much the dimensions changed, when the surface area was changed to 1/4 ?

????

I assume the last one, because there is so little information about what to do.

the surface area is calculated based on the areas of the various rectangles in the surface of the object.

each rectangle area is the result of multiplying 2 dimensions.

as the whole surface area shrinks by the factor 1/4, it means that every rectangle on the surface also shrinks by the factor 1/4.

and this factor 1/4 is the result of multiplying 2 dimensions. each dimension was changed by multiplying it with the same factor as every other dimension.

so, factor×factor = 1/4

factor² = 1/4

factor = sqrt(1/4) = 1/2

so, yes, in order to shrink the surface area to 1/4 of the original size, all the dimensions need to be cut in half (multiplied by 1/2).

Find the area; reduce to lowest terms: Length: 3 2/3 feet; Width: 1/4 feet

Answers

Answer:

 11/12 square feet

Step-by-step explanation:

The area is the product of length and width. Multiplication of mixed numbers is often easily done by converting to improper fractions.

  A = LW

  A = (3 2/3 ft)(1/4 ft)

  A = (11/3)(1/4) ft² = 11/12 ft²

The area is 11/12 square feet.

The perimeter is 60 cm long how long is one side of the square

Answers

Answer:

15cm

Step-by-step explanation:

All you need to do for this is divide the perimeter (60) by the number of sides on a square (4). 60÷4=15

Answer:

[tex]15[/tex]

Step-by-step explanation:

Square perimeter is

[tex]P=4s[/tex]

Solving for [tex]s[/tex] we get

[tex]s=\frac{P}{4}[/tex]

So we have

[tex]s=\frac{60}{4}[/tex]

[tex]s=15[/tex].

this is the graph of y = -x²- 4x - 7 what is the range of this function

Answers

Answer:

the range for this function would be  (−∞,−3],{y|y≤−3}

You spend 5/2 hours practicing the piano each day for 3 days. Your friend spends hours practicing the piano each day for 4/3 days. Who spends more time practicing the piano? ​

Answers

Answer:

pp

Step-by-step explanation:

Answer:

you spend more time

Step-by-step explanation:

4/3 is 1 1/3 or 1.33 repeated

5/2 is 2 1/2 or 2.5

Give the coordinates of each vertex (D, E, F) and explain how you found the coordinates using transformation rules.

Answers

Step-by-step explanation:

We have that the vertices of triangle ABC are:

A(4, 2)

B(7, 9)

C(7, 2)

First, we are reflecting over the y axis, which makes (x,y) map onto (-x, y). This gives us:

A'(-4, 2)

B'(-7, 9)

C'(-7, 2)

Then, we translate 5 units down, meaning we subtract 5 from each of the y coordinates. This gives us a final answer of:

D(-4, -3)

E(-7, 4)

F(-7, -3)

An article is marked to sell at Rs.1300;if 10% discount is allowed,find the discount amount and selling price.​

Answers

Answer:

discount amount=Rs. 130

selling price=Rs. 1170

Step-by-step explanation:

discount amount=10%of Rs.1300

=10/100*1300

=1300/10

=Rs. 130

selling price=MRP-discount amount

=1300-130

=Rs. 1170

W-2=-3
3
Ow=-
2
Ow=-5
Ow=-1
Ow=6

Answers

Answer:

Can I get equation for this too?

Step-by-step explanation:

Kendra bought 10 gallons of gasoline at $3.26 per gallon.
How much did she pay for the gasoline?

Answers

Answer:

Kendra paid $32.60 for gas.

Step-by-step explanation:

If the price of one gallon of gas is $3.26, then we should multiply that price by 10 gallons:

[tex]10(3.26)=32.6[/tex]

In context, that is a total of $32.60.

Answer: $32.60

Step-by-step explanation:

Price per gallon: $3.26

amount of gas: 10 gallons

3.26 dollars times 10 gallons = $32.60 total

Rachel, John, and Manuel have a total of $73 in their wallets. John has 3 times what Manuel has. Rachel has $7 less than Manuel. How much does each have?

Answers

Let Manuel has xJohn has 3xRachel has x-7

ATQ

[tex]\\ \sf\longrightarrow x+3x+x-7=73[/tex]

[tex]\\ \sf\longrightarrow 5x-7=73[/tex]

[tex]\\ \sf\longrightarrow 5x=80[/tex]

[tex]\\ \sf\longrightarrow x=16[/tex]

Manuel=16$Rachel=9$John=48$

A triangle has 2 angles that each measure 19)
What kind of triangle is it?
Oh, isosceles ulangle
OB. equiangular triangle
c. obtuse triangle
OD. right triangle

Answers

Answer:

isoceles

Step-by-step explanation:

because isosceles triangle have 2 sides with equal measurement and a same angle can be formed 1 or 3 times not 2 times.

The mean number of boxes of cookies sold by

each girl scout in Emma's troop was 28 with a

standard deviation of 8. If Emma's z-score

was -1. 5, how many boxes of cookies did she

sell?

Answers

Answer:

149

Step-by-step explanation:

wow

Me ayudan pleas
59
53

a =

Answers

I believe it would be 50

Clare’s aunt used a credit card to pay $42 for an outfit. Six weeks later, the credit card company charged her 2% interest.
a. How much is the 2% interest?
b. How much will Clare’s aunt have to pay in total?

Answers

Answer:

0.84$ and 42.82$

Step-by-step explanation:

2% is equivalent to 2/100

So, 42$ x [tex]\frac{2}{100}[/tex] = 84/100 = 0.84$ (the 2% interest)

And the total the aunt has to pay equals to = 42$ + 0.84$ =42.84$

find mistake I will give brainlist

Answers

Wally made a mistake on the first step when he wrote 2x - 3 = 18

Here’s the correct one:

2 (x-3) = 18 Given

2x-6=18 •Multiply x-3 by 2
2x=18+6 •6 chances the sign after
skipping the = sign
2x=24

Therefore:
X= 12 • divided both sides by 2
to get x

What equation is equivalent to x2 + 20x + 81 = -27? Can you show me how you got the answer please

Answers

The equivalent equation is x² + 20x = -102

Simplification of quadratic equation

The equivalent equation can be obtained by factorizing or simplifying the given quadratic equation as shown below;

x² + 20x + 81 = -21

collect similar terms together

x² + 20x + 81 + 21 = 0

x² + 20x + 102 = 0

The equation can also be written as x² + 20x = -102

Thus, the equivalent equation is x² + 20x = -102

Learn more about simplification of quadratic equation here: https://brainly.com/question/1214333

How do you write 35.4 in scientific notation?

Answers

Answer:

3.54x10^1

Step-by-step explanation:

La relación entre la temperatura del aire T (en º F) y la altitud h (en metros sobre el nivel del mar) es lineal para los primeros 20.000m. Si la temperatura a nivel del mar es de 60º F y por cada 5.000 m de altitud que se sube, la temperatura del aire baja 18º F. La temperatura del aire a una altitud de 15000 m es

Answers

Answer:

La temperatura del aire a una altitud de 15000 metros sobre el nivel del mar es -66 ºF.

Step-by-step explanation:

Dada la relación de linealidad, construimos una función lineal de la temperatura del aire en función de la altitud con respecto al nivel del mar, la cual es:

[tex]T(h) = T_{L} + \frac{T_{H}-T_{L}}{h_{H}-h_{L}} \cdot h[/tex], [tex]0\,m \leq h \leq 20000\,m[/tex] (Eq. 1)

Donde:

[tex]T_{L}[/tex] - Temperatura del aire a nivel del mar, medida en grados Fahrenheit.

[tex]T_{H}[/tex] - Temperatura del aire a determinada altitud, medida en grados Fahrenheit.

[tex]h_{L}[/tex] - Altura del nivel del mar, medida en metros.

[tex]h_{H}[/tex] - Altura determinada, medida en metros.

[tex]h[/tex] - Altitud con respecto al nivel del mar, medida en metros.

[tex]T(h)[/tex] - Temperatura del aire a una altitud con respecto al nivel del mar, medida en grados Fahrenheit.

Si sabemos que [tex]T_{L} = 60\,^{\circ}F[/tex], [tex]T_{H} = 18\,^{\circ}F[/tex], [tex]h_{L} = 0\,m[/tex], [tex]h_{H} = 5000\,m[/tex] y [tex]h = 15000\,m[/tex], la temperatura del aire a esa altitud es:

[tex]T(15000\,m) = 60\,^{\circ}F + \frac{18\,^{\circ}F-60\,^{\circ}F}{5000\,m-0\,m} \times 15000\,m[/tex]

[tex]T(15000\,m) = -66\,^{\circ}F[/tex]

La temperatura del aire a una altitud de 15000 metros sobre el nivel del mar es -66 ºF.

Price is $20.00 Sales Tax is 4% What is the total cost?

Answers

Answer:

0.8

Step-by-step explanation:

first i did 4% of 20 and got 0.8

Answer .60

Step-by-step explanation:

what is 150% of 48???

Answers

Answer:

What is 150 percent of 48? = 72

Step-by-step explanation:

= 150 percent *48

= ( 150/100)*48

= ( 150*48)/100

= 7200/100

= 72

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