100 points & will give brainliest!
write the set using interval notation
{x| 3 < x < 13 and x [tex]\neq[/tex] 4

Answer:

Otis can buy 6 pencils...

Answer:

Otis has $6.72, and he wants to buy some pencils that cost $1.12 each. How many pencils can he buy?

4 pencils x

5 pencils x

6 pencils :D

7 pencils x

Step-by-step explanation:

6 pencils

Answer:

The Answer is -467

Step-by-step explanation:

all it did was move the decimal to the right once

Step-by-step explanation:

cross multiply all equations seperately

1,n=63

2.n=24

3.n=19

4.n=20

Answer:

2.5% ?

Step-by-step explanation:

.025 as percentage is 2.5%

9514 1404 393

Answer:

  180

Step-by-step explanation:

The smallest such number is 4·5·9 = 180. Any multiple of 180 will be divisible by 4, 5, and 9.

[tex]\boxed{\sf Mean=\dfrac{Sum\:of\:terms}{No\:of\:terms}}[/tex]

[tex]\\ \sf\longmapsto Mean=\dfrac{12+19+38+52+55}{5}[/tex]

[tex]\\ \sf\longmapsto Mean=\dfrac{176}{5}[/tex]

[tex]\\ \sf\longmapsto Mean=35.2[/tex]

Answer:

Number two: x > -9/2, x < 3/2

Number one: x is less than or equal to 3/4, x is greater than or equal to - 13/4

Step-by-step explanation:

Number one:

|4x+5| > 10-2

|4x+5| > 8

4x+5 > 8

-(4x+5) > 8

x > 3/4

x < -13/4

x > 3/4, x < -13/4

(all of these signs are greater than or equal to and less than or equal to)

Number two:

|2x+3| > -6

2x+3 > -6

-(2x+3) > -6

x > -9/2

x < 3/2

x> -9/2, x < 3/2

(all of these signs are correct and not greater than or equal to or less than or equal to)

Answer:

-16x²

Step-by-step explanation:

-2x*8x= -16x²

Step-by-step explanation:

The profit function is simply the difference between the revenue function and the cost function. The profit function that models the yearly profit after 1985 is [tex]P(t) = 7t + 28[/tex]

Given that:

[tex]R(t) = t^2 + 7t + 159[/tex]

[tex]c(t) = t^2 + 131[/tex]

The profit function P(t) is calculated as follows:

[tex]P(t) = R(t) - c(t)[/tex]

So, we have:

[tex]P(t) = t^2 + 7t + 159 - (t^2 + 131)[/tex]

Open brackets

[tex]P(t) = t^2 + 7t + 159 - t^2 - 131[/tex]

Collect like terms

[tex]P(t) = t^2- t^2 + 7t + 159 - 131[/tex]

[tex]P(t) = 7t + 28[/tex]

Hence, the profit function that models the yearly profit after 1985 is [tex]P(t) = 7t + 28[/tex]

Read more about profit functions at:

https://brainly.com/question/11334756

Answer:

C.

perpendicular lines intersect in at least two points..

ok im not sure sorry

[tex] \large Answer : [/tex]

Total length of paper = 5.5 meters

length of each peice = 75 cm

Total number of pieces cut :

therefore, total number of pieces is 7 and some of the paper was left.

Answer:

The square root of 2 is between 1 and 2, so radical 2 is about 1.4.

Step-by-step explanation:

You can plot a 1 on the very left and a 2 on the very right of the number line.

Since there is no formal square root of 2, you have to estimate.

It has to be less than 2 because if you multiply 2 * 2 you get 4 and that's too big; we want to get 2.

It also has to be greater than 1 because 1 * 1 = 1 and that's too low.

I would estimate it to be right before the middle line.

Let length be x

ATQ

[tex]\\ \sf\longmapsto 2(L+B)=24[/tex]

[tex]\\ \sf\longmapsto 2(x+2x)=2=[/tex]

[tex]\\ \sf\longmapsto 2(3x)=24[/tex]

[tex]\\ \sf\longmapsto 6x=24[/tex]

[tex]\\ \sf\longmapsto x=\dfrac{24}{6}[/tex]

[tex]\\ \sf\longmapsto x=4[/tex]

Step-by-step explanation:

let the length be X and breadth be 2x

p=2(l+b)

24=2(X+2x)

24=2x+4x

24=6x

24÷6=x

4=X

so,we know that

X=4 and 2x=2 X 4= 8

therefore the value of breadth or width is 8

Answer:

The answer lies in the gradient.

Step-by-step explanation:

The gradient in this equation is -5/8. If any line has the same gradient as the equation above they are parallel because they have the same slant or tilt. Gradient determines if a line is parallel between linear line graphs. If the gradient between two linear line graphs are equal that means that they are parallel.

First identify what is the gradient of a line. The gradient is usually the number that is multiplied with x. In this case (-5/8x), -5/8 is the gradient.

Hope this help.

Answer:

0.25km

Step-by-step explanation:

km = 1000m

250/1000 = 0.25

Answer:

0.25 km

Step-by-step explanation:

1 km = 1000 m

250 ÷1000 = 0.25 km

Answer:

(13,-6)

Step-by-step explanation:

The midpoint is the exact halfway point, so all you need to do is find the distance between those two points and apply it again.

First find the x coordinate. The distance from -9 to 2 is 11. So you add 11 to 2, and you get 13, which is your x coordinate.

Then do the same thing with the y coordinate. And you get -6.

Your endpoint is (13,-6)

Answer:

The perimeter is the length of the outline of a shape. To find the perimeter of a rectangle or square you have to add the lengths of all the four sides. x is in this case the length of the rectangle while y is the width of the rectangle.

Step-by-step explanation:

2^5 > 4^2

32 > 16

hopefully it makes

:)

Answer:

it gives you -140 if you multiply all of them

Answer:

-140

Step-by-step explanation:

–2×-7= 14

minus Minus cut so 14 will be Positive no

then, 14×-10=-140

plus minus = Minus

so,

-140 is the answer

mark me brainliest if I am correct

Answer: d=7.5

Step-by-step explanation: 5.5=−2+d                                                                     d−2+2=5.5+2                                                                                                             d=7.5                  

Answer:

First rewrite the question: d + -2 = 5.5

Step-by-step explanation:

3.5 is your answer.

Answer:

810 km/h

I hope it's helps you