Add and Simplify.
(2x-y-2z-6)+(-6x+4y+3z+8)

Answer:

9m^2+17m-9

Step-by-step explanation:

Answer:

70 dollars

Step-by-step explanation:

he has only 70%left of his initial savings so that make 70%*100=7*10=70usd

Answer:

'Twice the sum of a number and 5' can be translated into variable expression such as:

Step-by-step explanation:

Given the phrase

Twice the sum of a number and 5

First, let us breakdown the English Phrase

Let the number be = n

The sum of a number 'n' and 5 = n + 5

now, twice the sum of a number and 5 can be determined by multiplying (n+5) with 5.

Thus,

'Twice the sum of a number and 5' can be translated into variable expression such as:

Answer:

The greatest common factor of 14x² - 4x is: 2x

Step-by-step explanation:

Given the expression

14x² - 4x

The first step is to factor out the greatest common factor from each term

14x² = 2 · 7 · 14 · x · x

4x = 2 · 4 · x

so

G.C.F = 2 · x

G.C.F = 2x

Therefore, the greatest common factor of 14x² - 4x is: 2x

Answer:

B. 2x + 12 = 28

Step-by-step explanation:

x is representative of the wingspan of the vampire bat. suppose the ghost bat has a wingspan of 28 inches.

if the wingspan of a ghost bat is 12 more than twice the vampire bat's, then 2x + 12 is the equation used to find the ghost bat's wingspan. we already know the ghost bat's wingspan is 28, therefore the equation is 2x + 12 = 28

Answer:

2

7

20

Step-by-step explanation:

asdf

Answer:

2

7

20

Step-by-step explanation:

-2 - (-4) =

2 negatives = a positive

-2 + 4 = 2

-7- (-14) =

2 negatives = a positive

-7 + 14 = 7

- 12 - (-32) =

2 negatives = a positive

-12 + 32 = 20

Hope this helped!

Have a supercalifragilisticexpalidocious day!

Answer:

13.5 square units

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

Answer:

The area of the triangle is 13.5 square units

Step-by-step explanation:

The easiest way to find the area of of a triangle is to find the area of rectangle surrounding it, and divide by two.

In this case, we can use the bottom line and the distance from that to the top point as the side lengths of our "rectangle"

The bottom line has a length of 9, and the distance from that line to the top point is 3.  We can say then that the area of the triangle is half of three times nine:

3 × 9 ÷ 2 = 3 × 4.5 = 13.5

So the total area of the triangle is 13.5 square units

Answer:

Step-by-step explanation: Hope this helps

Answer:

 Perimeter of the polygon p = 24

Step-by-step explanation:

Step(i):-

Given the vertices of a polygon are

P(0,4) ,Q( 5,4) ,R( 5,-3) and S(0,-3)

The distance of PQ

 [tex]a = PQ = \sqrt{(4-4)^{2} +(5-0)^{2} } = \sqrt{25} =5[/tex]

The distance of QR

[tex]b = Q R= \sqrt{(-3-4)^{2} +(5-5)^{2} } = \sqrt{49} =7[/tex]

The distance of RS

[tex]c = RS = \sqrt{(0-5)^{2} +(-3+3)^{2} } = \sqrt{25} =5[/tex]

The distance of PS

[tex]d = PS = \sqrt{(0-0)^{2} +(-3-4)^{2} } = \sqrt{49} =7[/tex]

Step(ii):-

Perimeter of the polygon

       = sum of all sides of polygon

p = a+ b+ c+ d

p = 5+7+5+7

p = 24

Final answer:-

 Perimeter of the polygon p = 24

Answer:

=-5n+6

Step-by-step explanation:

Answer:

-3.6x + 2.16

Step-by-step explanation:

Just multiply everything inside the paranthese by what is outside of the parenthesis.

-2.4(1.5x) + 2.4(.9) ---------> i did addition because it is a double negative, equaling a positive

Answer:

to be safe

Step-by-step explanation:

the further you are the better, because we don't know who have the virus from who don't have it it's better to be 6 feet apart frome each other where ever you go.

Answer:

Step-by-step explanation:

m = y2-y1 / x2-x1

-7/2 = -5 - 2 / x -3

-7/2 = -7 / x-3

x-3 = -7 * -2/7

x-3 = 2

x=5

The number x = 27/7.

In mathematics, a line's slope, also known as its gradient, is a numerical representation of the line's steepness and direction.

If a line passes through two points (3 ,2) and (x, -5) ,

then the equation of line is

y - y₁ = (y₂- y₁) / (x₂ - x₁) x (x - x₁)

To find the slope;

m =  (y₂- y₁) / (x₂ - x₁)

And m = -7/2 (given)

Now,

-7/2 = (-5+2)/(x-3)

Using cross multiplication,

-7x + 21 = -6

x = 27/7

Therefore, the x is 27/7.

To learn more about the slope;

brainly.com/question/3605446

#SPJ5

Answer:

1,172.5cm²

Step-by-step explanation:

Total surface area of a box = 2(LW + WH + LH)

L is the length = 11.5cm

W is the width = 7cm

H is the height = 1.5cm

Substitute

TSA = 2(11.5(7) + 7(1.5) + (11.5)(1.5))

TSA = 2(80.5+10.5+17.25)

TSA = 2(117.25)

TSA = 234.5cm²

Hence  the total surface area of a stack of five such compact disc boxes will be 5(234.5) = 1,172.5cm²

Answer: GCF is 24 ^-^

Answer:

The first step to find the gcf of 72 and 96 is to list the factors of each number. The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36 and 72. The factors of 96 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48 and 96. So, the Greatest Common Factor for these numbers is 24 because it divides all them without a remainder. Read more about Common Factors below.

Answer:

234 square inches

Step-by-step explanation:

We are given that

Length of book, l=11 in

Width of book, w=8 in

Height of book, h=1in

Additional area required to overlap=20 square inches

We have to find how many square inches of paper to make  cover of one book.

We know that surface area of cuboid

[tex]S=2(lb+bh+hl)[/tex]

Using the formula

Surface area of book

[tex]S=2(11\times 8+8\times 1+1\times 11)[/tex]

[tex]S=214 in^2[/tex]

Total paper used to make cover of one book

=Surface area of book +additional surface area

=[tex]214+20[/tex]

[tex]=234in^2[/tex]

Hence, Anwar will use paper to make cover of one book=234 square inches

Answer:

x^2+2x-15

Step-by-step explanation:

Answer:

x² + 2x - 15

Step-by-step explanation:

Solve by using FOIL (First, Outside, Inside, Last). This distributes the numbers:

(x + 5)(x - 3)

Use FOIL:

x(x) + x(-3) + 5(x) + (5)(-3)

Simplify:

x(x) + x(-3) + 5(x) + (5)(-3)

x² + x(-3) + 5(x) + (5)(-3)

x² - 3x + 5(x) + (5)(-3)

x² - 3x + 5x + (5)(-3)

x² - 3x + 5x - 15

Combine like terms.

x² + 2x - 15

Your final answer would be x² + 2x - 15

Answer:

30 days

Step-by-step explanation:

We solve the above question using Lowest Common Multiple Method.

Find and list multiples of each number until the first common multiple is found. This is the lowest common multiple.

Multiples of 6:

6, 12, 18, 24, 30, 36, 42

Multiples of 15:

15, 30, 45, 60

Therefore,

LCM(6, 15) = 30

Therefore, the NEXT time he will be cleaning his room and washing his windows on the same day is in 30 days time

Answer:

$5,400

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 3.5%/100 = 0.035 per year,

then, solving our equation

I = 4000 × 0.035 × 10 = 1400

I = $ 1,400.00

The simple interest accumulated

on a principal of $ 4,000.00

at a rate of 3.5% per year

for 10 years is $ 1,400.00.

Answer:

Step-by-step explanation:

r = 1.5 in ,    V = 56.52 in³

V = π × r² × h

56.52 = π × (1.5)² × h

56.52 = π × 2.25 × h

[tex]h=\dfrac{56.25}{2.25\pi}=\dfrac{25}{\pi}\ in=7.9577...\ in\approx8\ in[/tex]

Answer:

AD=35

angle D=90

Step-by-step explanation:

I hope it's helps you

Answer:

associative

Step-by-step explanation:

Answer:

the third one

Step-by-step explanation:

because I knie

Step-by-step explanation:

mark as BRAINLY

thanks.............

Answer:

x=-2/3 y+ 5/3

Step-by-step explanation:

3x+2y+−2y=5+−2y

3x=−2y+5

3x/3 = -2y+5/3

x = -2/3 y+5/3

x=-2/3 y+ 5/3

Question:

There are 33.8 fluid ounces in a litre. There are 128 fluid ounces in a gallon. About how many litres are in a gallon?

Is your estimate larger or smaller than the actual number of litres in a gallon? Explain how you know

Answer:

It is larger

Step-by-step explanation:

Given

[tex]33.8\ fl\ oz = 1\ litre[/tex]

[tex]128\ fl\ oz = 1\ gallon[/tex]

Required

Estimate number of litres in a gallon

[tex]33.8\ fl\ oz = 1\ litre[/tex]

[tex]128\ fl\ oz = 1\ gallon[/tex]

Cross Multiply

[tex]128\ fl\ oz * 1\ litre = 33.8\ fl\ oz * 1\ gallon[/tex]

[tex]128 * 1\ litre = 33.8* 1\ gallon[/tex]

Divide both sides by 33.8

[tex]\frac{128 * 1\ litre}{33.8} = \frac{33.8* 1\ gallon}{33.8}[/tex]

[tex]\frac{128 * 1\ litre}{33.8} = 1\ gallon[/tex]

[tex]3.78698224852\ litre = 1\ gallon[/tex]

Approximate

[tex]3.787\ litres = 1\ gallon[/tex]

The estimate is larger than the actual litres to gallon conversion because, in standard units of conversion;

[tex]3.785\ litres = 1\ gallon[/tex]

Answer:

8, 11, 14

Step-by-step explanation:

You add 3 to each number