Mathematics College

Why is the boundary line for aninequality involving ng dashed rather than solid?

Answers

Answer 1
When the inequality is “less than or equal to” or “greater than or equal to” it is shown by a solid line. When the inequality is “less than” or “greater than” it is shown by a dotted/dashed line.

Related Questions

What do you do if the divisor (the number you're dividing
by) is greater than the dividend (the number that is
being divided)?

Answers

Answer:

you can use decimals

Step-by-step explanation:

A person on a moving sidewalk travels 12 feet in 4 seconds. The moving sidewalk has a length of 120 feet. How long will it take to move from one end to the other?

Answers

Answer:

40 seconds

Step-by-step explanation:

120/12 = 10

10*4 = 40

THEREFORE 40 seconds to walk 120 feet at that speed

The decorating committee for a
school banque decides to put flower
arrangements on cach table. Each
arrangement will have 3 white
carnations and 5 yellow carnations.
The committee will need 60 white
carnations. What is the total numbe
of white and yellow carnations the
committee will need?

Answers

160 flowers
The ratio is 3:5 of white to yellow.
They need 60 white which means they times by 20. So 20x5=100 they will need 100 yellow. In total they need 160

given h(x)=-x-3, find h(-6)

Answers

Answer:

h(-6) = 3

Step-by-step explanation:

h(x) = -x - 3

h(-6) = -(-6) - 3

h(-6) = 6 - 3

h(-6) = 3

A standard train ticket in a certain city costs $1.50 per ride. People who use the train also have the option of purchasing a frequent rider pass for $17.25 per month. With the pass, a ticket costs only $0.75 per ride. How many train rides a month make the frequent rider pass a better deal than standard train tickets?

Answers

Just off the bat 17$is 12 rides and then 17.25 +0.75 is 18 so 13 rides

x = number of rides per month.

Without the pass, the cost per ride is 2.00 per ride.

With the pass, the cost per ride is 1.25 per ride plus 15.75 per month.

You want to know at what number of rides does the cost per ride using the pass become cheaper than the cost per ride without using the pass.

The formula for total cost is as follows:

without the pass:

C1 = 2*x

with the pass:

C2 = 15.75 + 1.25*x

You want to know when C2 becomes less than C1.

C2 < C1 is the inequality equation you are looking for.

Since C2 = 15.75 + 1.25*x, and C1 = 2*x, this equation becomes:

15.75 + 1.25*x < 2*x

Subtract 1.25*x from both sides of this equation to get:

15.75 < 2*x - 1.25*x which becomes:

15.75 < .75*x

Divide both sides of this equation by .75*x to get:

15.75/.75 < x

Simplify to get:

21 < x

21 < x is the same as x > 21.

Your answer is the C2 becomes cheaper than C1 when x > 21.

If you make x = 21, then:

C1 = 2*21 = 42
C2 = 15.75 + 1.25*21 = 15.75 + 26.25 = 42

They are equal.

If you make x = 22, then:

C1 = 2*22 = 44
C2 = 15.75 + 1.25*22 = 15.75 + 27.5 = 43.25

43.25 is cheaper than 44 so C2 is cheaper than C1, confirming that the equation is good.

Which equation represents a line parallel to the line shown on the graph?

Answers

Step-by-step explanation:

b


This equation has one solution.
5(x - 1) + 3x = 7(x + 1)
VA
What is the solution?

Answers

I think the answer is 12
The solution is x=12

What is the slope. Write the answer in simplest form.

Answers

Answer:

-1/4

Step-by-step explanation:

Points: (-8, -3), (-24, 1)

slope = rise/run = difference in y / difference in x

Find the difference in the y-coordinates in either order:

Let's do 1 - (-3) = 1 + 3 = 4

Now we find the difference in x, but it must be in the same order we did the difference in y.

-24 - (-8) = -24 + 8 = -16

Difference in y = 4

Difference in x = -16

slope = 4/(-16) = -1/4

Answer: -1/4

What is the decimal equivalent of the fraction 2?
0 2.125
0 2.4
O 2.1
O 2.18

Answers

Answer:

2 .1 because its closes to two

pls solve ASAP brain list to first and correct ​

Answers

Can you make the photo more clear/

Anyone please please answer (30points)

Answers

Answer:

Look in explanation

Step-by-step explanation:

for each k(x) value, plug the x into the given equation

-4: 1/2 (-4) -1 = -2-1=-3

all are solved this way

-2: -2

0: -1

2: 0

4: 1

ordered pair will be (x, (k(x))

for example (-4, -3)

do this for all other points

slope can be found by taking the change in y over change in x

so -2- -4 divided by -2 - - 3 = 2/1 = 2

slope = 2

hope that makes sense

whats 10424123^2. yep have fun

Answers

108,662,340,319,129 that is the answer

13 less than the product of a number and 6 is 5

Answers

Answer: Excuse me, what do you mean "and 6 is 5?"

Step-by-step explanation:

if there are 45 seats in 9 rows how many seats are in 1 row.

Answers

there should be 5 seats

Answer: Their is 5 seats in 1 row.

Step-by-step explanation:    9x5=45 and 45÷9=5

Suppose you are ordering a calzone from D.P. Dough. You want 4 distinct toppings, chosen from their list of 8 vegetarian toppings. How many choices do you have for your calzone

Answers

Answer:

1680

Step-by-step explanation:

Number of distinct Toppings wanted = 4

Total number of vegetarian topping = 8

To choose 4 distinct toppings from a total of 8

Using permutation :

nPr : n! (n - r)!

8P4 = 8! / 4!

8P4 = (8*7*6*5)

8P4 = 1680

Which equation represents the relationship between the x-and y-values shown in the table?

Answers

the second one because the exddddsedfffdffdggf
y=3x-4
7*3=21-4=17
5*3=15-4=11
3*3=9-4=5
2*3=6-4=2

Geometry question
What is the formula to find the surface area of a pyramid with a triangle base?

Answers

Answer:

Step-by-step explanation:

12pl+B where p represents the perimeter of the base, l the slant height and B the area of the base.

Solve for the roots in simplest form using the quadratic formula:
4x^2 -28x= -53

Answers

Answer:

x = (28 +- root -64) / (8)

Step-by-step explanation:

4x^2 -28x= -53 = 0

x = [-(-28)+- root (-28)^2 - 4 * 4 * 53] / 2 *4

x = (28 +- root 784 - 848) / (8)

x = (28 +- root -64) / (8)

What is the poH of a
8.4 x 10-11 M OH solution?

Answers

Answer:

p O H = 10.08

Step-by-step explanation:

Answer:

10.08

Step-by-step explanation:

Acellus sucks

please help homework. ignore the green that's just pre algebra above ​

Answers

(6x + 5) - (8x - 3) would be the expression but then simplify it.

When it's simplified you get -2x + 8

Therefore the answer will be -2x + 8.

Hello :)
Please help me solve this

Explain answer

Answers

Answer:

[tex]Scale\ Factor = \frac{1}{2}[/tex]

ABC dilated

Step-by-step explanation:

Given

Triangles ABC and DEF

Required

Determine the scale of dilation

First, we pick a side on ABC

[tex]AB = 6[/tex]

Pick a corresponding side on DEF

[tex]DE = 3[/tex]

The scale factor is then calculated as:

[tex]Scale\ Factor = \frac{DE}{AB}[/tex]

[tex]Scale\ Factor = \frac{1}{2}[/tex]

i.e. ABC was dilated by 1/2

Given:
g(x) = 5 – 6x
Find:
g(5)

Answers

let's start by substituting 5 for x
g(5) = 5 - 6(5)
g(5) = 5 - 30
g(5) = -25

-X - 8x + 7
I forgot how to do this

Answers

Answer:

I need to see an equal sign (=) to be able to solve

Step-by-step explanation:

this equation is invalid

I just need #1 plzzzz if you can do #2 and #3 as well I also need the work!! 20 points

Answers

#1 would be 12 cm as the actual length of the thermos! This is because the scale given is 1:3 right? if you find what number 1 is multiplied by to get 3, you will obviously have 3. then, the given length of the thermos would be multiplied by 3, so it would be 3 x 4, which would be 12!

-8th grader

Substitute x=-2y into the expression 6x-7 and simplify

Answers

Answer:-12y -7

Step-by-step explanation: I think

Answer:

-12y - 7

Step-by-step explanation:

x = -2y

6x - 7 or 6(-2y) - 7

-12y - 7

Ms. Smith’s class raised $525.50 to go on a field trip. They rented a bus for $300 and budgeted $22.75 per student for meals. They will spend all the money they raised.

Write and solve an equation that models this situation and could be used to determine the number of students that can go on this trip.

Answers

Answer:

oui

Step-by-step explanation:

oui oui bagutte

help now plz just help plzzz

Answers

Answer:

there is no problem

Step-by-step explanation:

sorry

Which of the following statements is true? ​

Answers

Answer:

B and D

Step-by-step explanation:

Hope this helped :)

what’s the answer? i need it asap please

Answers

Answer:

D

Step-by-step explanation:

Subtract 30 and 16. Cross out 0 and make it a 10 and 10-6= 4 then take 1 from 3 and make it a 2 and 2-1=1. It will all equal up to 14!

Answer:

8x+30+4x+18=180

12x+48=180

180-48=12x

132=12x

x=132/12

x=11

3x=210 what's x equal

Answers

x=70, 21 divide 3=7 and then add a 0 from the 210 and get 70.

Answer:

x = 70

:-))

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