This green rug has a perimeter of 36 feet. The length is 3 + x and the width is 5. Write an expression that can be used to find the missing value of x. Combine like terms of your equation until it is the most simplified form. What is the value of x? Explain your reasoning.

Answer:

B

Step-by-step explanation:

66/4=99/6=330/20=16.5

Since there is a constant ratio between these values, the function is a line, and the equation of that line is w=16.5m, or choice B. Hope this helps!

Answer:

w=16.5

Step-by-step explanation:

All you have to do is divide the number of gallons of water by the number of minutes and you will get your answer.

66/4=16.5

99/6=16.5

330/20=16.5

I hope I've helped.

Answer:

3/5

Step-by-step explanation:

First one   18^2 - 4(-1)(81)  > 0    so no repeated root

Second one     (-3)^2  - 4(3) (-168)  >  0    so no repeated root

Third one   (-4) - (4) (1) (-4)  > 0      so no repeated root

Fourth one  (-30)^2  - 4(25) (9)   =  900 - 100(9)  =  0      repeated root

Note  this factors  as  (5x - 3)^2  

(5x - 3)^2  = 0     take both roots

5x - 3  = 0

5x  = 3

x  =  3/5   = repeated root

The quadratic expression [tex]25x^{2} -30x+9[/tex] has repeated root and the repeated root is 3/5

Let, [tex]ax^{2} +bx+c=0[/tex] is a quadratic.

Then the expression ([tex]b^{2}-4ac[/tex]) is called the discriminant of the quadratic.

If  [tex]b^{2}-4ac[/tex] = 0 then we can say that the quadratic has a repeated real root.

The discriminant of [tex]-x^{2} +18x+81[/tex] is,

[tex]b^{2}-4ac[/tex] = [tex]18^{2}-4(-1)(81)[/tex] = 324+324=648 > 0

So, This quadratic has no repeated root.

The discriminant of [tex]3x^{2} -3x-168[/tex] is,

[tex]b^{2}-4ac[/tex] = [tex](-3)^{2}-4(3)(-168)[/tex] = 9+2016 = 2025 > 0

So, This quadratic has no repeated root.

The discriminant of [tex]x^{2} -4x-4[/tex] is,

[tex]b^{2}-4ac[/tex] = [tex](-4)^{2}-4(1)(-4)[/tex] = 16+16 = 32 > 0

So, This quadratic has no repeated root.

The discriminant of [tex]25x^{2} -30x+9[/tex] is,

[tex]b^{2}-4ac[/tex] = [tex](-30)^{2} -4(25)(9)[/tex] = 900-900 = 0

So, This quadratic has repeated root.

The discriminant of [tex]x^{2} -14x+24[/tex] is,

[tex]b^{2}-4ac[/tex] = [tex](-14)^{2}-4(1)(24)[/tex] = 196-96 = 100 > 0

So, This quadratic has no repeated root.

The equation [tex]25x^{2} -30x+9[/tex] = 0 has repeated root.

Simplifying the equation we get,

[tex]25x^{2} -30x+9[/tex] = 0

⇒ [tex](5x)^{2}-2(5x)(3)+3^{2}[/tex] = 0

⇒ [tex](5x-3)^{2}[/tex] = 0

⇒ 5x-3 = 0

⇒ 5x = 3

⇒ x = 3/5

The repeated root is 3/5.

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i think number 4. is. a, d, r

Answer:

(k + 8) • (2k + 9)

Step-by-step explanation:

I strongly suggest downloading Photomath. It’ll help a lot.

Answer:

2. the slope is -10 and y-intercept is 1

Step-by-step explanation:

hope this helps!

Answer:

B. The slope is –10, and the y-intercept is 1.

Step-by-step explanation:

Our equation is y = -10x + 1. Notice that this is of the form y = mx + b, which is called the slope-intercept form because it literally gives us the slope and y-intercept in the equation:

- m: this is the slope value

- b: this is the y-intercept

Here, m = -10, which means the slope is -10. Also, b = 1, so the y-intercept is 1.

Thus, the answer is B.

Answer:

6

Step-by-step explanation:

To solve this, you need to have your equation in slope-intercept form.  This is y=mx+b, where m is the slope and b is the y-intercept.

y - 5 = 6(x - 4)

y - 5 = 6x - 24

y = 6x - 19

The slope, m, is equal to 6.

Answer:

2 * 43

Step-by-step explanation:

Answer:

2*43

Step-by-step explanation:

Polygon: a figure formed by coplanar segments

with one distinct interior region

Figure A, Figure B, and Figure D would be considered polygons.

Notice that those figures I mentioned above are

composed of line segments, and nothing else.

In addition, these figures don't have two separate

interior regions and figures that do aren't polygons.

Figure C would not be a polygon because

it's formed by a curve rather than line segments.

Answer:

a. 0.8x+1.25y

b. $5.70

Step-by-step explanation:

a. Let x represent the number of apricot bars and y represent the number of cranberry bars. A apricot bar costs 0.80 each and cranberry bars cost 1.25 each. So the expression for the income is 0.8x+1.25y.

b. To find the answer, plug in values to the previous expression. Since Kayley bought 4 apricot bars and 2 cranberry bars, plug in 4 for x and 2 for y.

0.8(4)+1.25(2)= 5.70

So, she spent $5.70.

Answer:

$338.50

Step-by-step explanation:

Simple interest would be i = ($2500)(0.09)(1.5 yrs)  =  $338.50

Answer:

B) 2

Step-by-step explanation:

the initial value would be the first point and on this graph that first point is (1,2). and you should look at the x-value meaning your answer is 2

Answer:

It's 2

Step-by-step explanation: hope it helps ^w^

Answer: 385 students

Step-by-step explanation:

Answer:

Current number of students : 350

The number of students after increasing 10% N:

N = 350 + 10% of 350 = 350 + 350 x 10/100 = 350 + 35 = 385 students

Hope this helps!

:)

Answer: x≠0

Step-by-step explanation:

Makes the equation undefined

Answer:

27 ) x = 15°,

28 ) x = 18°

Step-by-step explanation:

27 ) We are given angle measures of 85 degrees, consecutively 6x + 5, each forming a linear pair;

85 + ( 6x + 5 ) = 180 ⇒ by definition of linear pair we have two measures of angles that add to 180°,

85 + ( 6x + 5 ) = 180 ⇒ take out ( ),

85 + 6x + 5 = 180 ⇒ combine like terms,

90 + 6x = 180 ⇒ subtract 90 from either side of equation,

6x = 90 ⇒ divide 6 on either side of equation,

Solution; x = 15°

28 ) We are given angle measures of 110 degrees, consecutively 3x + 16, each forming a linear pair;

110 + ( 3x + 16 ) = 180 ⇒ by definition of linear pair we have two measures of angles that add to 180°,

110 + ( 3x + 16 ) = 180 ⇒ take out ( ),

110 + 3x + 16 = 180 ⇒ combine like terms,

126 + 3x = 180 ⇒ subtract 126 from either side of equation,

3x = 54 ⇒ divide 6 on either side of equation,

Solution; x = 18°

Answer:

a ≤0  but without the line

Step-by-step explanation:

Answer:

44/3

Step-by-step explanation:

The formula of volume of any prism is Bh

B=Area of the base

h=height

So just multiply them together:

So as a mixed fraction you get 14 2/3

Improper fraction: 44/3

Hope this helps!  

The value of X is 1.6

Look at the attached picture

Hope it will help you

Good luck on your assignment

Answer:

[tex]x = 1.6[/tex]

Step-by-step explanation:

[tex]x + 4.7 = 6.3 \\ x = 6.3 - 4.7 \\ x = 1.6[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer: 28 degrees farenheit

Step-by-step explanation: add 22 and 6 for the total of how many degrees -6 is from 22.

If the  temperature at dawn is -6°F but by noon it is 22°F.Then 28°F  is the difference in temperatures

Two or more expressions with an Equal sign is called as Equation.

The temperature at dawn is -6°F

The temperature at dawn in afternoon is 22°F.

We need to find the difference in temperatures.

Difference is nothing but subtracting one number with another number.

Now subtract  -6°F from 22°F.

22°F-(-6°F)

Twenty two degree fahrenheit plus six degree fahrenheit

22°F+6°F

28°F

Hence there is 28°F in temperatures. Option D is correct.

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Answer:

The area for both shapes = 4

Step-by-step explanation:

Area of triangle 1/2hb

Area of square s^2

triangle: 1/2 *4*2= 4

square: 2^2 =4

Answer:

factor by grouping

(x-1) (5x-6)

Step-by-step explanation:

correct me if i am wrong

Answer:

B) Z

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

3x9=27

4x7=28

Your son is 3 years old now

Step-by-step explanation:

If you do 9 times 3, you would get 27, and when you do 4 times 7, you would get 28. So, it makes sense since you get 1 year older and you are 9 times as old and then you will be 7 times as old. So, right now, your  son is 3 years old.

Answer:

y-intercept is (0,8) and x-intercept is (5,0)

Step-by-step explanation:

Answer:x=2

Step-by-step explanation:

X=-b/2a

b=-4 a=1 in front of x

X=- - -4/2

X=4/2=2

Answer:

1/5=10/50

2/9=20/90

Step-by-step explanation:

1/5 is just a simpler way of saying 10/50 same as 2/9

Answer:

it is 300

Step-by-step explanation:

you must multiply 15 by 4 by 4

The volume of the prism is 300 in³.

A prism is a three-dimensional object.

There are triangular prism and rectangular prism.

We have,

The length of the prism is 15 inches.

The width of the prism is 4 inches.

The height of the prism is 5 inches.

To find the volume of the prism, we use the formula.

V = l w h

V = (15)(4)(5)

V = 300 cubic inches.

Therefore,

The volume of the prism is 300 in³.

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Answer:

YES

Step-by-step explanation:

Calculate the actual floor area:  A = (10 1/8 ft)(13 3/4 ft), or, as decimal fractions,

A = (10.125 ft)(13.75 ft) = 139.22 ft^2

Mary's purchase of 150 ft^2 of carpet is more than enough to cover 139.22 ft^2.  YES, she will have enough carpet.

Answer:

21a + 9

Simplifying

21a + 9

Reorder the terms:

9 + 21a

Factor out the Greatest Common Factor (GCF), '3'.

3(3 + 7a)

Final result:

3(3 + 7a)

HOPE THIS HELP

Answer:

[tex]3(7a+3)[/tex]

Step-by-step explanation:

Answer:

a = -5

b = 2

Step-by-step explanation:

a+b=-3

a-b= -7              +

2a  = -10

a = -10/2

a = -5

a + b = -3

-5 + b = -3

b = -3 + 5

b = 2

Answer:

14 classes

Step-by-step explanation:

if she pays $5 per cycling class than in May she payed $20. $55 - $20 = 35. If in June the cost was double the membership fee than 35 x 2 = 70. Than you do 70 / 5 = 14.