Mathematics High School

Which of the following is an undefined term?
Angle
Circle
Plane
Ray

Answers

Answer 1
I think it would be C.plane... I had this question a while ago and I think its right... plz tell me if I am wrong. Thanks.
Answer 2

Answer:

Plane is an undefined plane

Step-by-step explanation:

Hi, there are three undefined terms in geometry: point, line, and plane.

Point: has no size, only location . It can be named with a capital letter.

Plane: a flat surface that has no thickness, that extends infinitely n every direction.  Is named  by a single letter or by three coplanar, but non-collinear, points.

Line: Set of points extending in either direction infinitely.

Angle, circle, and ray are not undefined terms.  are not Plane.

Related Questions

please help asap 50 pts

Answers

(-2,-3) is the vertex. Since it is the lowest point, it is the minimum.

The vertex is always the lowest or highest point:

When a parabola looks like a smiley face, it has a minimum (like this one).

When a parabola looks like a frowning face, it has a maximum.

The coordinate for the vertex is (-2, -3).

So, your answer is C.

WILL MAKE BRAINLIEST!!!!!!!The arc length of a sector is equal to twice the radius. Express the arc length s as a function of the area a of the sector.
s=

Answers

The area of a circular sector is . 

==>  
Since r = s/2, it follows that , or , or 
.

The arc length as a function of the area of the sector is  l=2√A.

What is the area of a sector?

Area of a sector = 1/2 * arc length(l) * radius(r)

[tex]A=[/tex] [tex]\frac{1}{2} l*r[/tex]......(1)

It is given that the arc length of a sector is equal to twice the radius.

This means [tex]l=2r\\[/tex]

So, [tex]r=\frac{l}{2}[/tex]

Putting the value of r in (1)

[tex]A = \frac{l^{2} }{4}[/tex]

[tex]l^{2} =4A[/tex]

[tex]l=2\sqrt{A} \\[/tex]

So, the required function is l=2√A

Hence, the arc length as a function of the area of the sector is  l=2√A.

To get more about arc length visit:

https://brainly.com/question/2005046

Maria is traveling for business. She starts by traveling from Mexico City to Singapore which is about 1.26 x 104 miles. She then travels from Singapore to New York which is approximately 9.53 x 103 miles. What is the total distance that Maria traveled?

Answers

The answer is 1112.63 miles or 1113 miles because:
1.26 x 104 = 131.04
9.53 x 103 = 981.59
131.04 + 981.59 = 1112.63

Hope this helps :)

Answer:

D  

2.213 x 10^4 miles

Step-by-step explanation:

Took the test

Simplify the function f(x)= 1/2 (27) 2x/3. Then determine the key aspects of the function

Answers

The given expression is:

[tex]f(x)= \frac{1}{2}(27)^{ \frac{2x}{3} } \\ \\ f(x)= \frac{1}{2}((27)^{ \frac{2}{3} })^{x} \\ \\ f(x)= \frac{1}{2}(9)^{x} [/tex]

From the above equation, we can answer all the 4 questions.

a) Initial value occurs when x = 0

So,

[tex]f(0)= \frac{1}{2}(9)^{0}= \frac{1}{2} [/tex]

So, the Initial value of the function is 1/2.

b) Simplified Base:
The base of an exponential function is the term which contains the exponent.
From the simplified equation, we can see that the base has been simplified and is equal to 9.

So, the simplified base is 9

c) Domain:
From the equation we can see that there is no such value which makes the function undefined. So all reall numbers are included in the Domain.

So, Domain is Set of All real numbers. 
In Interval notation this can be expressed as: (-∞,∞)

d) Range:
Range is the set of all y values that a function can take. Since the graph is not shifted vertically up or down, the range will be the set of all real numbers greater than zero.

So, Range is equal to All real numbers greater than 0.
In Interval notation, this can be expressed as (0,∞)

Answer:

The last one is y>0

a bag contains 7 red marbles 6 green marbles 5 yellow marbles and 2 orange. marbles are drawn twice with a replacement. what is p {yellow and green?

a coin is tossed and a number cube is rolled. what is p{h, then prime number?

letter tiles that spell the word happiness are replaced in a bag. a tile is drawn and then a second tile is drawn. find p then vowel p?

Answers

yellow 3 green
[tex]226[/tex]

Question 1:

We have been given that a bag contains 7 red marbles, 6 green marbles, 5 yellow marbles, and 2 orange. Further we are given that marbles are drawn twice with a replacement. We need to figure out the probability P(Yellow and Green).

Basically, we need to determine the probability that first marble drawn is yellow and second marble drawn is green.

Probability of first marble drawn being yellow is [tex]\frac{5}{20}=\frac{1}{4}[/tex] and probability of second marble drawn being green is [tex]\frac{6}{20}=\frac{3}{10}[/tex].

Therefore, the probability P(Yellow and Green) = [tex]\frac{1}{4}\cdot \frac{3}{10}=\frac{3}{40}[/tex].

Question 2:

We have been given that a coin is tossed and a number cube is rolled and we need to find the probability P(H, prime number).

Probability of getting head on the coin is [tex]\frac{1}{2}[/tex].

Probability of getting a prime number on the cube is [tex]\frac{3}{6}=\frac{1}{2}[/tex].

Therefore, probability P(H,  prime number) = [tex]\frac{1}{2} \cdot \frac{1}{2}=\frac{1}{4}[/tex]

simplify 15r+7r+9r-7s

Answers

yo edges a** 56789123456

15r + 7r + 9r - 7r
 12r      +    2r
         14r
_____________________

12r + 2r = simplified

answer is 14r

______________________

Hope this helps,
QueenBeauty666

Fifty-eight boys were asked if they play football and/or baseball. Thirty-one of them said they do not play baseball. Sixteen of them said they play football. Twenty of them said they do not play baseball or football.

Enter your answers in the boxes to complete the two-way table based on the given data.

Answers

The two-way table is attached.

We start out placing 31 in the Total column beside the Don't Play Baseball row.  We then place 16 in the Total row under the Play Football column.  20 goes in the Don't Play Baseball row under the Don't Play Football column.

Since there are 31 people that do not play baseball, and 20 of them don't play football, this leaves us with 31-20=11 that do not play baseball and play football.

There are 58 people total, so this goes in the Total row under the Total column.

There are 58 people, and 31 of them do not play baseball; this leaves us 58-31=27 total that play baseball.

16 total people play football, and 11 of them don't play baseball.  This leaves us 16-11=5 people that play football and play baseball.

There are 58 people, and 16 of them play football; this leaves us 58-16=42 total that don't play football.

42 people don't play football, and 20 of them don't play baseball; this leaves us 42-20=22 people that don't play football and play baseball.

5 people play baseball and play football, and 22 people play baseball and don't play football; this gives us 5+22=27 people total that play baseball.

What is the value of x?
28
47
56
33

Answers

The answer is:  " 47 " .
______________________________________________________
                       →   " x = 47 "  .
______________________________________________________
Explanation:
______________________________________________________
Note:   The "vertex" is "floating around" inside the circle.  


Answer:

47

Step-by-step explanation:

A town has a population of 13000 and grows at 4.5% every year. What will be the population after 13 years, to the nearest whole number?

Answers

23,039. 
y=13,000(1.045)^t
t=13
You get 1.045 because you add 1+ the percentage in decimal form.

Answer:

population after 13 years is around 23,039

Step-by-step explanation:

A town has a population of 13000 and grows at 4.5% every year.

Population growth is given by [tex]y=a(1+r)^t[/tex]

y is the population after t years

'a' is the initial population= 13000

'r' is the rate of growth=4.5%= 0.045

t is the number of years=13

[tex]y=a(1+r)^t[/tex]

[tex]y=13000(1+0.045)^13[/tex]

y=23,038.54

Graph y ≥ (x + 2)2 Click on the graph until the correct graph appears.

Answers

The graph shows a parabola with a solid line and shading above or on the curve to represent the inequality [tex]y\geq (x+2)^{2}[/tex] This graph visually illustrates the solution set for the given inequality.

To graph the inequality [tex]y\geq (x+2)^{2}[/tex] we first need to plot the parabola [tex]y=(x+2)^{2}[/tex] with a solid line. The vertex of the parabola is at [tex](-2,0)[/tex]  and it opens upwards.

Next, we shade all the regions above or on the parabola to represent the inequality [tex]y\geq (x+2)^{2}[/tex] Since the inequality includes "or equal to" [tex](\geq )[/tex] we use a solid line for the graph of the parabola.

By following these steps, we create a graph where the area above or on the parabola is shaded, indicating the solutions to the inequality [tex]y\geq (x+2)^{2}[/tex] his shading represents all the points.

where the y-values are greater than or equal to the corresponding y-values on the parabola. The solid line ensures that points on the parabola itself are included in the solution set.

In summary, the graph shows a parabola with a solid line and shading above or on the curve to represent the inequality [tex]y \geq (x+2)^{2}[/tex] This graph visually illustrates the solution set for the given inequality.

The Bright Star Video Club offers the two membership plans described below.

Plan A: $50 yearly membership fee and $2 for each video rental
Plan B: $10 yearly membership fee and $4 for each video rental
Greg is planning to enroll in one of these plans. For how many video rentals would the total cost of Plan A be equal to the total cost of Plan B?
A. 50
B. 20
C. 30
D. 40

Answers

To solve this, you need to create two separate equations and set them equal to each other.

Plan A: y = 2x + 50
Plan B: y = 4x + 10

2x + 50 = 4x + 10

Now solve the combined equation.

2x + 50 = 4x + 10
      - 10          - 10 
 2x + 40 = 4x
-2x           -2x
40 = 2x
x = 20    
you can either graph the following equations, 
Plan A: y=2x+50
Plan B: y=4x+10
and see where they intersect, and that will give you the answer.
OR
You can substitute each answer for x, like this,
A. 50
Plan A:
y=2(50)+50
y=100+50
y=150
Plan B:
y=4x+10
y=4(50)+10
y=200+10
y=210
So, therefore, A.50 is not the answer.
B.20
Plan A:
y=2x+50
y=2(20)+50
y=40+50
y=90
Plan B:
y=4x+10
y=4(20)+10
y=80+10
y=90
So, B.20 is correct but always check the rest of the answers. Just in case
C.30
Plan A:
y=2x+50
y=2(30)+50
y=60+50
y=110
Plan B:
y=4x+10
y=4(30)+10
y=120+10
y=130
So, C.30 is incorrect.
D.40
Plan A:
y=2x+50
y=2(40)+50
y=80+50
y=130
Plan B:
y=4x+10
y=4(40)+10
y=160+10
y=170
So, in conclusion the correct answer is B.20.


Daniel is setting up rows for a concert. He decides to put 9 chairs in each row. There are 45 chairs. Let x represent the number of rows of chairs. Which equation can be used to find the number of rows of chairs Daniel needs to set up?

Answers

9x=45
*divide 45 by 9 which is 5
x=5
hope this helps!

An alloy of copper is 10% copper and weighs 25 pounds. A second alloy is 18% copper. How much (to the nearest lb.) of the second alloy must be added to the first alloy to get a 13% mixture.

Answers

You need 15 pounds of copper to get a 13% mixture

A coin is unbalanced such that it comes up tails 55% of the time.
a.what is the probability that you don't flip a head until the fourth flip?
b.what is the probability that you don't flip a tail until the fourth flip?
c.how many tosses would it take, on average, to flip a head?
d.how many tosses would it take, on average, to flip a tail?

Answers

a. P[TTTTH] = .55^4*.45 = .0412

b. P[HHHT] = .45^4*.55 = .0226 

c. 1/.45 = 2.222 

d. 1/.55 = 1.818

The path of a rocket ship is given by the parametric equations x(t)=3t and y(t)=4t^2+1, where t is the time in seconds after launch. Where is the ship after 10 seconds?
A.) (3,4)
B.) (3,5)
C.) (30,401)
D.) (30,501)

Answers

x(t)=3t
y(t)=4t^2+1

Time (seconds):

Where is the ship after 10 seconds?
t=10→Position: Point: P=(x(t), y(t))=(x(10), y(10))=?

t=10→x(10)=3(10)→x(10)=30
t=10→y(10)=4(10)^2+1=4(100)+1=400+1→y(10)=401

Position: P=(x(10), y(10))=(30, 401)

Answer: Option C.) (30, 401) 

You choose a marble at random from a bag containing 8 brown marbles 6 yellow marbles and one purple marble. You replace the marble and then choose again.find p (both yellow)

Answers

Pick 1: 6 yellow out of 15 total marbles = 6/15 = 2/5
Pick 2: 6 yellow out of 15 total marbles = 6/15 = 2/5

Pick 1 AND Pick 2
   2/5     x       2/5    = 4/25

Megan consumed 3.5 gallons of water in one day. How many milliliters are equal to 3.5 gallons, if 1 liter equals 1,000 milliliters and 1 gallon = 3.785 liters?

Answers

First, find how many milliliters there are in 1 gallon. 3.785 x 1,000 = 3,785
There are 3,785 milliliters in one gallon.

Then, multiply that by 3.5    3,785 x 3.5 = 13,247.5   

There are 13,247.5 ml in 3.5 gallons

Answer:

There are 13,247.5 ml in 3.5 gallon

K(x)=10x+5 inverse function

Answers

The inverse of the function is k(x) = [tex] \frac{x - 5}{10} [/tex]


You can find the inverse of any function by switching the k(x) value and the x value. After that, solve for the new k(x). The result will be your inverse function. The step-by-step process is below.


k(x) = 10x + 5 ----> Switch the x and k(x)

x = 10k(x) + 5 ----> Subtract 5 from both sides

x - 5 = 10k(x) ----> Divide both sides by 10.

[tex] \frac{x - 5}{10} [/tex] = k(x) ----> Now switch the order for formatting

k(x) = [tex] \frac{x - 5}{10} [/tex]


And this is your new inverse function.

If you answer 110 questions and get a 94% how many did you get wrong

Answers

STEP 1:
Set up a ratio.

x= number correct out of 110

x/110= 94/100
cross multiply

(x * 100)= (110 * 94)
100x= 10,340

divide both sides by 100
x= 103.4


STEP 2:
subtract number correct in step 1 from total number of questions

=110 - 103.4
=6.6 questions wrong


ANSWER: There were exactly 6.6 questions wrong on the test. Since you cannot have a partial question (unless otherwise stated), but only whole questions, round up to 7 whole questions wrong.

Hope this helps! :)

How do you simplify # (x+3)/(x^2+7x+12)#?

Answers

hey friend your answer



hope it is helpful
By using the method of factorization

Martha states that –6 is a rational number. Which is a correct explanation for this statement?
The number –6 is the opposite of 6.
The number –6 is a negative integer.
The number –6 can be written as -6/1
The number –6 is less than 0.

Answers

Martha's statement saying - 6 is a rational number is correct as - 6 can be written as - 6/1.

What are rational numbers?

Rational numbers consist of fractions and integers.

Any rational number can be written in the form of p/q, where q ≠ 0.

Any integer can be written in the form of a rational number p/q, where q ≠ 0 and q = 1.

Given, Martha states that - 6 is a rational number.

First, it is a negative integer but it can be written in the form - 6/1 as - 6/1 is equal to 6.

learn more about rational numbers here :

https://brainly.com/question/1310146

#SPJ6

Final answer:

Martha is correct in stating that -6 is a rational number because it can be written as -6/1.

Explanation:

Martha is correct in stating that -6 is a rational number because it can be written as -6/1. A rational number is any number that can be expressed as a fraction, where both the numerator and denominator are integers. In this case, -6 can be written as the fraction -6/1.

Jacob drove from town a to town b at an average rate of x miles per hour, then returned along the same route at y miles per hour. if he then drove back to town b at z miles per hour along the same route, what was jacob's average rate of speed for the entire trip, in miles per hour?

Answers

The answer is 1,000 miles

Frazier has $1,200 in savings. He works because he is saving money for college, and he earns $9 an hour. If Frazier saves 25 percent of his net pay, after 20 percent is taken out for tax, identify the expression which represents Frazier's savings.

A) 1.8x + 1,200
B) 3.6x + 1,200
C) 7.2x + 1,200
D) 9x + 1,200

Answers

the correct answer is A..!! I think...:(



Answer:  The correct option is (A) [tex]1.8x+1200.[/tex]

Step-by-step explanation:  Given that Frazier is saving money for college and has $1200 in savings. He earns $9 per hour. He saves 25% of his net pay after 20% taken out for tax.

We are to identify the expression that represents Frazier's savings.

Let, x represents the number of hours for which Frazier works.

So, the net pay of Frazier = $ 9x.

Since 20% of the net pay is taken out for tax, so total pay of Frazier after taking out tax is given by

[tex]I_t=9x-20\%\times 9x=9x-\dfrac{20}{100}\times 9x=9x-\dfrac{9x}{5}=\dfrac{36x}{5}.[/tex]

Now, Frazier's savings from his net pay is given by

[tex]I_s=25\%\times \dfrac{36x}{5}=\dfrac{25}{100}\times \dfrac{36x}{5}=\dfrac{9x}{5}=1.8x.[/tex]

Since Frazier has $1200 already in savings, so the equation representing Frazier's savings will be

[tex]1.8x+1200.[/tex]

Thus, the required equation is [tex]1.8x+1200.[/tex]

Option (A) is CORRECT.

can someone please explan how I got this wrong?
Solve for x in the triangle
using laws of cosine

Answers

[tex]\bf \textit{Law of Cosines}\\\\ c^2 = a^2+b^2-(2ab)cos(C)\implies c = \sqrt{a^2+b^2-(2ab)cos(C)} \\\\\\ \cfrac{a^2+b^2-c^2}{2ab}=cos(C)\implies cos^{-1}\left(\cfrac{a^2+b^2-c^2}{2ab}\right)=\measuredangle C\\\\ -------------------------------\\\\ \begin{cases} x=24\\ a=25\\ b=19 \end{cases}\implies cos^{-1}\left(\cfrac{25^2+19^2-24^2}{2(25)(19)}\right)=\measuredangle x \\\\\\ cos^{-1}\left( \cfrac{41}{95} \right)=\measuredangle x\implies 64.432194^o\approx \measuredangle x[/tex]

A florist earns a profit of $2.00 on each bunch of carnations, $3.00 on each bunch of lilies and $1.00 on a bunch of roses. On a particular day, she sold 46 bunches of flowers and made a profit of $82.00. She sold twice as many bunches of roses as bunches of lilies.

Answers

its your mom cause she was at my house


jk its b. love yah


A number cube numbered from 1 to 6 is rolled. what is the probability of the number cube showing a 5 or an even number?

Answers

The probability would be 4/6 but if it is a simplified answer then you would get 2/3.

The measure of a squares side is 1.2 feet. What is the perimeter of the square in inches?

Answers

1.2 feet  = 12 * 1.2  = 14.4 inches

perimeter = 4 * 14.4 =  57.6 inches.

will give brainiest if correct

A. 69.1
B. 20.9
C. 22.4
D. 67.6

Answers

I think it's D. But I'm not sure if my math was correct
Using sin law;

sin A/ a = sinB/ b

where A = C or 90 degrees; a = 21
B = ? , b = 8

solving for b;
sin(90) / 21 = sin(B) / 8 ; B = 22.39 degrees

Total angle of triangle = 180

180 - 90 - 22.39 = x
x = 67.607 degrees

Selecting a red pen and then a blue pen, when selecting 2 pens from a bag of 10 red pens

Answers

What? That’s not possible because there’s no blue pens. If that’s the awnser?

The product of some negative number and 10 less than three times that number is 25. find the number.

Answers

n(3n-12) = 25
n=2+1/3√111 or n=2+-1/3√111
Other Questions
Who can help me with this algebra 2 work Need help Which point is anx-intercept of the quadratic functionf(x) = (x+ 6)(x 3)? What is the main focus of Carl Sandburgs biography of Lincoln in the section from A Lincoln Preface? Please please please help!1. Why does the duke most likely need a new duchess in My Last Duchess? Select one: a. His last duchess died. b. He is exceedingly poor. c. His last duchess left him for a painter. d. He fell deeply in love with a young woman. 2. The curtain covering the painting in My Last Duchess helps you infer that the speaker regards himself as Select one: a. all-powerful b. common c. jealous d. kind 3. In My Last Duchess, the duke feels that his last duchess was Select one: a. unworthy of art b. faithful to him c. too flirtatious d. very young Question 4 4. In My Last Duchess, the dukes treatment of his listener in lines 4754 shows that the Select one: a. listener shows few signs of protesting b. duke controls every action his listener m Your 32-year-old brother has decided to reduce his caloric intake to improve his health. research by fontana et al. (2004) has determined that he is likely to benefit in what ways? describe how Chaucer uses minute details to flesh out the character of the knight. What inferences can be drawn from the description? Which statements about the life of william morris are true? every member of the food web is the prey of another member of the food webtrue or false explain why A school conference room can seat a maximum of 83 people. The principal and two counselors need to meet with the schools student athletes to discuss eligibility requirements. If each student must bring a parent with them, what is the maximum number of students that can attend each meeting? Choose the ratio that you would use to convert 5.5 pounds to ounces. Remember that there are 16 ounces in 1 pound. A. I NEED HELP PLEASE!!! ASAP!!Which headline is most consistent with AP style in voice, structure, and format? A) President announces budget: Congress is going to discuss it B) President announces budget; Congress to discuss it C) Budget announced by PresidentCongress will be discussing it D ) Budget announced by President. Congress to discuss it What does the term Cold War mean Vanillin, c8h8o3 (m = 152 g/mol), is the molecule responsible for the vanilla flavor in food. how many oxygen atoms are present in a 45.0 mg sample of vanillin? Ahmed is five years old and is going to testify in court as an eyewitness. the judge should know that SOMEONE PLEASE HELP ME ASAP When an animal runs along the ground by flexing some of its muscles, what causes its muscles to contract? A. hormonal signals B. light signals C. heat impulses D. electrical impulses Heterozygous alleles are found on ________ chromosomes. A)analogous B)heterozygous C)homologous D)homozygous Jenya has 12 bills in her wallet. She has a total of $82. If she has twice as many $5 bill as $1 bills, and two more $10 bills than $5 bills, how many of each does she have? Solve x2 7x + 12 = 0.a. x = 3, x = 4b .x = 3, x = 4c. x = 2, x = 6d. x = 2, x = 6 Which general formula can be used to identify carbohydrates?