Mathematics High School

1.The null set is represented by
a) { }
b) {0}
c)
d) None of these​

Answers

Answer 1

Answer:

A

Step-by-step explanation:

( ) The null set is always empty.

Answer 2

Answer:

a

Step-by-step explanation:

The null set will always be empty

Related Questions

3 km : 1200 m
? : ?


what is both mean

Answers

Step-by-step explanation:

Answer in attached picture

hope it helps

Answer:

5:2

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

If m/n = 0,mnnnnn....., what is the value of m+n

Answers

Answer:

n

Step-by-step explanation:

m/n = 0

=> m = 0 × n

=> m = 0

n + 0 = n

Vanessa has $60 to spend on rides at the state fair. Each ride cost $4

Answers

She can ride 15 rides because 60/4=15

if 9m + 18= -27, then 4m - 5= ? Please help!

Answers

Answer:

? = -25

Step-by-step explanation:

9m + 18 = -27

9m = -45

m = -45/9

m = -5

4m - 5 = ?

4(-5) - 5 = ?

-20 - 5 = ?

-25 = ?

Jeremy has $1200 in spending money for the fall semester of college. He needs to purchase car insurance at $120 for 4 months, $25 a week to buy his lunch in the cafeteria every day, and $20 bi weekly for entertainment. If the semester is 16 weeks long, will Jeremy have $200 to spend on Christmas presents for his family? Explain

Answers

Answer:

Jeremy Will have more than just $200 to spend on Christmas presents.

Explanation :

He has a total of $1200.

He spends a $120 for car insurance. (1)

He needs to spend $25 a week for lunch. He has to do this for 16 weeks so 25*16 = $400. (2)

He needs to spend $20 a week for entertainment. For 16 weeks that'll be 20*16 = $320 (3)

adding (1) (2) and (3)

We get Jeremy's total spending will be $840. Jeremy has $1200.

1200-840 = $360

So Jeremy will have $360 to spend on Christmas present.

-y - 52 = 33

10 Points

Answers

Answer:

−

5

2

=

3

3

1

0

Step-by-step explanation:

:/

Answer:

y = - 85

Step-by-step explanation:

-y = 52 + 33 (52 flys over " = " and changes sign)

-y = 85

-y / - 1 = 85 / - 1 (getting rid of negative sign of y)

y = - 85

Andrew is showing his work in simplifying −4.5 + 4.2 + 5.6 − 7.3. Identify any errors in his work or in his reasoning.

Answers

Answer: step 5. -11.8+9.8 = -2

Step-by-step explanation:

On a homework assignment or in the study plan, you would click the Check Answer button to check

Answers

is there a picture i could see?

?????????????????????????????

Answers

Answer:

∠ WMX = 65°

Step-by-step explanation:

∠ WMX = ∠ VMX - ∠ VMW = 90° - 25° = 65°

Find the value of k such that the line through (k+3,7) and (-5,3 – k) has a
slope of 5/3.

Answers

Answer:

k= -14

Step-by-step explanation:

[tex]\boxed{slope = \frac{y1 - y2}{x1 - x2} }[/tex]

[tex] \frac{5}{3} = \frac{7 - (3 - k)}{k + 3 - ( - 5)} [/tex]

[tex] \frac{5}{3} = \frac{7 - 3 + k}{k + 3 + 5} [/tex]

[tex] \frac{5}{3} = \frac{4 + k}{k + 8} [/tex]

Cross multiply:

3(4 +k)= 5(k +8)

Expand:

12 +3k= 5k +40

Bring k terms to one side, constant to the other:

5k -3k= 12 -40

Simplify:

2k= -28

Divide both sides by 2:

k= -14

3D
h
1 A weather balloon took temperature readings
at vanous heights in the lower atmosphere.
Balloons at lower altitudes had higher
temperature readings. Which list shows
balloons in order of increasing altitude?
m
W
D
A 10.8°, 30.1". 55.49, 68.90, 71.20
B 42. 1º. 40.5º. 39. 70. 34.49. 30.00
C 30.00. 50.00 40.09. 60.09.2008
D 52 533 518 5 3 4
A
c
D

Answers

In this situation, As we rise to higher attires, the temperature lowers therefore, only Option B [42. 1º. 40.5º. 39. 70. 34.49. 30.00] follows that requirement.

        Now show why there are other possibilities wrong

Option A increases with the altitude, which violets the particular condition.Option C again increases at this temperature as the altitude increases and abruptly falls to 20, which is not our condition.option D up to 51.8 sounds excellent, however, this is achievable as is our given situation but the temperature goes to 59.3, therefore, this option is also refused.

Learn more:

brainly.com/question/16970622

6k+9k<0
−2 −1 0 1 2 3 4 5 6 7 8

Answers

Answer:

Step-by-step explanation:

Here is your answer

6k+9k<0

Simplify

6k+9k<0

15k<0

divide the sides by 15

15k /15 < 0 /15

1k<0

k<0

//

Algebra 1. Graph and question is shown in picture

Answers

y=1x-8
Slope intercept form: y=mx+b
Slope of the line: 1/1 (rise/run) or 1
Y-intercept: -8

given the diameter of a circle is 17 1/2cm, find its area. (use π=22/7)​

Answers

Step-by-step explanation:

a

[tex]area \: of \: circle = \pi{r}^{2} \\ = 22 \div 7{ \times (35 \div 2)}^{2} \\ = 3.14 \times 306.25 \\ = 961.625 {cm}^{2} [/tex]

hope it helps.stay safe healthy and happy...

Points X and Y are in plane Z. Any point collinear with X and Y is also in plane Z

pls need answer huhu =(
​

Answers

Answer:

yes above statement is true

Step-by-step explanation:

mark me as brainliest ❤️

[tex] \large \mathfrak{Answer : }[/tex]

Yes, it's true that Any point that is collinear to points X and Y also lies in the same Z plane among X and Y.

(2-6i)(8+i)(9-3i). If u could show me the process that would be great ty <3

Answers

Answer:

(19)(-8i)

Step-by-step explanation:

(2 - 6i)(8 + i)(9 - 3i)

(2 + 8 + 9)(-6i + i - 31)

(19)(-8i)

Gabriel borrowed some money from his friend in order to help buy a new video game system. Gabriel agreed to pay the friend back some amount every week until his loan was paid off. Let LL represent the amount Gabriel owes his friend after tt weeks. A graph of LL is shown below. Write an equation for LL then state the slope of the graph and determine its interpretation in the context of the problem.

Answers

LL is negative because at t=2 LL=-30. At this point the slope of the graph is -1/4, or one fourth.

The equation of the line is y = (15/2)x + 80.

The slope of the line is 15/2.

We have,

The coordinates from the graph:

(0, 80) (2, 65) and (3, 55).

Now,

The slope can be calculated as:

= (d - b) / (c - a)

where (a, b) and (c, d) are the two coordinates.

Consider (a, b) = (0, 80) and (c, d) = (2, 65)

Slope = (65 - 80) / (2 - 0)

Slope = 15/2

Now,

The equation of  the line:

y = mx + c _______(1)

Where m is the slope and c is the y-intercept.

Consider: (0, 80) = (x, y)

80 = 15/2 x 0 + c

c = 80

And,

Substitute c = 80 and m = 15/2 in (1).

y = (15/2)x + 80

Thus,

The equation of the line is y = (15/2)x + 80.

The slope of the line is 15/2.

Learn more about the equation of a line here:

https://brainly.com/question/23087740

#SPJ3

Aaron works construction and only worked three (3) days last week. How many hours did he total for the three days he worked? _

Answers

Answer:

The answer is 72

Step-by-step explanation:

given the point (-3,-6) translate it 4 units down what are the new coordinates

Answers

Answer:

(-3,-10)

Step-by-step explanation:

4 units down means -4 from the y axis

-6 - 4 = -10

a) sin30°.tan60° = cos30°​

Answers

Answer:

Taking LHS:sin 30⁰. tan60⁰

= 1/2 . √3

=√3/2

Now, Taking RHS:Cos 30⁰

=√3/2

LHS =RHS,

Hence proved.

Step-by-step explanation:

please help I need this done like now.​

Answers

Answer:

CM = 16

MD = 16

CD = 32

Step-by-step explanation:

To find the value of x

3x + 1 = 8x - 24 (we know that M is the mid point so both of the lines will be equal)

Transpose

1 + 24 = 8x - 3x

25 = 5x

x = 25/5

x = 5

CM = 3x + 1

      = 3(5) + 1

      = 15 +1

      = 16

MD = 8x - 24

      = 8(5) - 24

      = 40 - 24

      = 16

CD = CM + MD

     = 16 + 16

     = 32

Which equation can be used to solve for x in the following diagram

Answers

Answer:

C. (3x + 12) + x = 180

Step-by-step explanation:

[tex](3x + 12) \degree + x \degree = 180 \degree \\ \{angles \: on \: straight \: line \} [/tex]

group like terms together:

[tex](3x + x) + 12 = 180 \\ 4x = 180 - 12 \\ 4x = 168 \\ x = 42[/tex]

equation C would be your answer.

(3x + 12) and x represent 180 combined.

so (3x + 12) + x = 180, combine your like terms which is your x, x + 3x = 4x

4x + 12 = 180 (subtract 12 on both sides)
-12 -12
————————
4x = 168 (divide 4 on both sides)
—- ——
4 4

x = 42

to check your answer you replace the x with 42 and you should get 180 as your answer

(3x+12) = 180
3(42)+12 = 180
126 + 12 = 138

x = 42

138 + 42 = 180

Help…………………………….sskskdkdkdkdkkdkdkdkd

Answers

Step-by-step explanation:

According to the above figure,

RS+ST=RT

4x+12x=32

16x=32

x=32/16

x=2

Now,

ST=12x

ST=12×2

ST=24

1. Today at work Lori will model seven different outfits. It usually takes
her 25 minutes to change into her outfit, have her make-up touched up
and her hair combed and brushed into place. How much time will she
spend getting ready to model? Format Hours and Minutes

Answers

If it takes 25 for Lori to change into one outfit, you would do 25 x 7 = 175. To split that into hours and minutes, keep subtracting 60 until you get a number less than 60. 175 - 60 = 115 - 60 = 55. We subtracted 60 two times, so that would be, in total, 2 hours and 55 minutes.

Translate the following statement into an equation and solve for x

Answers

Answer:

104 = -13 x -8

Step-by-step explanation:

The reason you got it wrong is, I'm assuming, because of the way you formatted it. Try this and see if it works.

7 grade math please help

Answers

Answer:

Step-by-step explanation:

-3.4 is the lowest temperature.

Coldest temperature is -3.4 is recorded at 3:00 pm

The temperature closest to freezing point of water is -0.15

Answer:

Step-by-step explanation:

3:00pm is the coldest

12:00pm is the closest to freezing

A bag contains 15 marbles. The probability of randomly selecting a green marble is 1/5. The probability of randomly
selecting a green marble, replacing it, and then randomly selecting a blue marble is 2/25. How many blue marbles are
in the bag?
02
3
05
06

Answers

Answer:

The answer is 6 whole marbles.

Step-by-step explanation:

HOPE IT HELPS!!! :] Would not mind BRANILIEST!

Simplify to create an equivalent expression.

Answers

Answer:

A

Step-by-step explanation:

Given

- k - (- 8k + 7) ← distribute parenthesis by - 1

= - k + 8k - 7 ← collect like terms

= 7k - 7 → A

Answer:

7k + 7

Step-by-step explanation:

-k - (-8k + 7)

-k + 8k + 7

7k + 7

give brainliest please I need it to level up

48 POINTS PLEASE HELPPPPPPP....The formula for the area of a traingle is 1/2 bh, where b is the length of base of the traingle and h is the vertical height. Use the formula to find the height of a traingle with a base length of 8 inches and an area of 39 square inches.​

Answers

Answer:

h=39/4

Step-by-step explanation:

area of a triangle = 1/2(b*h)

base = 8 inches

area =39 square inches

input the values given:

39=1/2(8*h)

multiply the right side by 1/2

39=(1/2)8h

find half of 8

39=1/2*8 (h)

hence,

39=4h

divide both sides by 4

hence,

39/4=h

the 1st, 5th and 10th terms of a linear sequence are GP. if the sum of the 2nd and 8th term of the linear sequence is 30 find the first term

Answers

Answer:

12 or 15

Step-by-step explanation:

Let the first term is a and common difference is d.

Given:

a, a₅ and a₁₀ form a GP ⇒ a₅/a = a₁₀/a₅a₂ + a₈ = 30a = ?

Use the equation of nth term:

a₅ = a + 4da₁₀ = a + 9da₂ = a + da₈ = a + 7d

According to the given we have:

(a + 4d)² = a(a + 9d) a² + 8ad + 16d² = a² + 9ad16d² = add(16d - a) = 01. d = 0

or

2. a = 16d

Now, use the equation of sum:

a + d + a + 7d = 302a + 8d = 30a + 4d = 15a = 15 - 4d

Compare the value of a and find d:

1. d = 0

a = 15 - 4*0 = 15, in this case all the terms are same

2. a = 16d

15 - 4d = 16d20d = 15d = 15/20d = 0.75

Find a:

a = 16*0.75a = 12
Other Questions
the science building is 5.25 m tall a. How many decimeters is it? b. How many millimeter is it? *show work* 12.A taxi service charges you $ 1.50 plus$0.60 per mile for a trip to the airport.Angie paid $13.50 for her ride to theairport. How far did she travel? Find the mean of the integers. -3,-1, 0, 1, What are the implications of the statement "all men are created equal"? If you were writing about how Equiano might have been influenced to treat his own slaves by his experiences as a slave himself, paragraphs 4, 8, and 10 on the left would give good support to show that A. many slaves preferred death to the torture they had to endure at the hands of the slave traders. B. the crew was alarmed if slaves tried to escape and did all they could to rescue them. c. all of the slaves were chained together so they could work together better. True/False: Mutations that inactivate genes that promote apoptosis often lead to increased risk of developing cancer. g At the city museum, child admission is $5.20 and adult admission is $9.00. On Wednesday, four times as many adult tickets as child tickets were sold, for a total sales of $1359.60. How many child tickets were sold that day? What the property of 10x=10 whats the answer to said problem Name a point that is NOT coplanar with G, A, and B a. None of his friends went there, ..............?((Add an appropriate question tag Pls This The Last One I Need Help On Where would the best information be found when planning a trip to several towns in Colorado?a world mapa globea state map of Colorado GUYS, I NEED YOUR HELP!! Write an equation for each word problem.1. Nicoles Burger Barn sold 584 hamburgers today. Three times as many hamburgers were sold with cheese. How many cheeseburgers were sold?2. Four times a number increased by 25 is 13 less than six times the number. Find the number.3. Three times a number decreased by 8 is the same as twice the number increased by 15. What is the number?4. Madison has $6 more than Saul. Together Madison and Saul have $90. How much money do they each have?5. Konrad has $57 in his change jar and adds $3 each week. In how many weeks will the change jar have more than $72?6. Omar needs at least $2,150 to buy a used car. He already has $1,800 saved in his bank account. If Omar saves an additional $35 a week, in how many weeks will he have saved enough to buy his car?7. A taxi company charges $2.25 for the first mile and $0.20 for each additional mile. If Davids taxi fare was $6.05, how many miles did he travel?8. Charlie and Patrick have the same number of action figures in their collections. Charlie has 6 complete sets plus 2 individual figures. Patrick has 3 complete sets plus 20 individual figures. How many figures are in a complete set?9. An apple has 30 more calories than an orange. Five oranges have about as many calories as 3 apples. How many calories are in each? Four times the sum of a number and ter is the same as one-hundred added to eighttimes the number. What is the number? im going to break my monitor sooncan osmeon help me 1-07 What is the length of the marked portion of each line segment? Copy thesegmentomto your paper before finding the missing length. Assume that the entireime segment is suborvided into equal sections. Homework Help Please help i will give extra points Need help with #12Please help teacher asked pupils,"did you do homework covert to indirect speech State TWO ways in which the mating call of the new isolatedsouthern frog population differs from the north population of frogs.(2)Suggest why the new isolated southern population of frogs could beconsidered a separate new species.(2)Describe how it can be proven that the new isolated southernpopulation of frogs is a different species.(2)4