# Math

## Branches of Math

## Recent Math Questions

**math**

The inner circumference of a circular track is 440 m. The track is 14 m wide. Find the diameter of the outer circle of the track.

**Math**

A circle is divided into 20 equal parts. Find the angle measure of one of the parts

**math**

if length of xz=48, xy=55, yz=73, what is the sin of y

**math**

4cos^2 x - cosx-3 =0 0 to 2pi SORRY TYPED THE QUESTION WRONG PLESSE HELP

**math**

15(5^x-2)=8^2x+1 extraneous root sorry for the re post, i typed it wrong

**math**

given f(x) = x^2 and g(x)= squar root x+4. determine the following compostions and their doamin and range a) f(g(x)) b) g-1(superscript) (f(x)) c) g(f(x)) +g-1(superscript)(f(x))

**Math Help**

A tortoise is 53 centimeters from its food. The tortoise is ambling toward its food at 8 centimeters per second. At this velocity, how far will the tortoise move in 5 seconds?

**math**

log(subscript)2 (x+5) + log(subscript)2 (x-1) =4 find the extraneous root

**math**

The pH or acidity of liquid is measured in pH, where pH is given by the equation pH=- log C, with C being the concentration of [H+] in multiples of M=1mol/L. Suppose you are given a solution of hydrochloric acid with a pH of 1.7 and asked to increase the pH solution by 1.4. ...

**math**

15(5x-2)=82x+1 solve the extraneous root

**Math**

Question 2 Tries remaining: 3 Points out of 1.00 Not flaggedFlag question Question text Tom is going to buy a new Toyota Mercury for $23800. The dealership will offer a loan for the total value of the car at 2.25% APR for 4 years. Use Web Loan Calculator to answer. Round all ...

**Math**

Lele I want to bought a sandbox in her backyard the sandbox she build has an area of one do you want to square feet yard drive the sandbox to blow and label the side to show all the possible of21 and widths

**Math**

Samantha is going to buy a new Dodge Saturn for $20800. After a 5% down-payment the dealership will offer a loan for the remaining value of the car at 3.25% APR for 4 years. Round all answers to the nearest penny. Use Web Loan Calculator to find some of the answers here.

**math**

A polynomial function function is defined by the equation p(x)=3x3+ax2+bx+7, where a, bE/. If p(-2)=5 and p(1)=14 then the value of a+b is...

**Math**

An area of 36 square metres is being enclosed on all 4 sides with the least amount of fence. If the fence comes in 2 metre sections, how many sections are neede?

**MATH!!! CHECK ANSWER**

1. How many solutions can be found for the equation 4x + 5 = 10? A. Zero B.One**** C.Two D.Infinitely Many 2.What is the value of z in the equation 3z − 7 = 14? A.3 B.4 C.7**** D. 21

**Math Help**

An equation is shown below: 4(2x - 5) + 15 = 11 Write the steps you will use to solve the equation and explain each step. Can someone please explain step by step this equation? Thanks!!

**Math (Check 2 answers please)**

1. What is the value of b in the equation b + 8 = 13? A. 5**** B. 8 C. 13 D. 21 2. The steps below show the incomplete solution to find the value of x for the equation 7x − 3x − 4 = −1 + 21: Step 1: 7x − 3x − 4 = −1 + 21 Step 2: 7x − 3x − 4 = 20 Step 3: 4x − ...

**Math**

Laura is moving up to the attic and wants to paint a wall white. The wall is a triangle with a base of 7.5 feet and a height of 12.25 feet. What is the area of the wall? Please help me!!

**Math**

If the decimal in the number 4157.98 is moved one place to the right the number will become-

**Math**

If the decimal in the number 4157.98 is moved one place to the right the number will become-

**math**

PLEASE HELP A rectangular hot tub is 6 feet long and 5 feet wide.A walkway 3 feet wide surrounds the hot tub.Find the area of the walkway A:30 square feet B:65 square feet C:102 square feet D:132 square feet

**Math**

In 1950 the annual per capita consumption of eggs was 495; that is, the average person ate 495 eggs per year. In 2004 the per capita consumption had dropped to 257. Fill in the blank with a fraction. (Round each annual per capita consumption to the nearest ten.) In 2004 the ...

**Math**

The music teacher would like to have the same number of girls and of boys in the chorus. She finds that 5/8 of the chorus are girls but that if she can get 10 more boys, the chorus will have the same number of boys as of girls. (a) How many students are in the chorus? (b) If ...

**math**

Keith has 10 books. Sally has 3 times more books than Keith. How many books does Sally have? which answer is correct, 10x3=30 or 10x(3+1)=40? cheers!

**Math**

there are 120 cards shared between Anna, Jane and Tina. Each time Anna gets 5, Jane must get 3, and Tina has to get 2 until all of cards are divided. How many cards does each person get?

**math**

can "10 is 6 more than 4" be written as "10 is more than 4 by 6". cheers!

**Math**

A Pedometer cost $6.50. If I paid $20.00, would I get change back? If so, how much should I get back?

**Math**

A large pizza at Tony's Pizzeria is a circle with a 14-inch diameter. Its box is a rectangular prism that is 1 14 8 inches long, 1 14 8 inches wide, and 3 1 4 inches tall. Your job is to design a crazy new shape for a large pizza. It can be any irregular polygon shape, but it ...

**Math**

Stacy earns $12.50 an hour at her job. She wants to earn at least $390. Write an inequality hat represents all of the possible numbers of hours (h) that she could work to make at least $390.

**Math**

Jackson has 20 quarters if he gives four quarters to each of his children how many children does Miss Jackson have

**Math**

I have 17 hundreds,2 tens,9 ones,6 tenths and 7 thousands. What number am I?

**Math (Calculus II) (Graph approximation)**

Here is the link to the graph of f' in question: bit.ly/2oml70V I have a hard time trying to answer these kinds of questions when we're only given a graph of f'. a) Approximate the slope of f at x = 4. Explain. I believe the slope of f in this case would be a decreasing slope...

**math**

marching band wants to creat a square on the field using all the band members. If there are 169 members in the band, how many sgould be in each row? 1.12 2.15*** 3.13 4.11 Please tell me if im correct or not and Im in brain honey.

**math**

18. Identify a sequence of transformations that maps triangle ABC onto triangle A′′B′′C′′ in the image below. (1 point) clockwise 90° rotation; enlargement counterclockwise 90° rotation; reduction counterclockwise 90° rotation; enlargement ....... clockwise 90...

**Math**

18. Identify a sequence of transformations that maps triangle ABC onto triangle A′′B′′C′′ in the image below. (1 point) clockwise 90° rotation; enlargement counterclockwise 90° rotation; reduction counterclockwise 90° rotation; enlargement ....... clockwise 90...

**math**

Your medical terminology instructor listed the following grades for the class out of a 75-point test: 33, 34, 43, 45, 45, 54, 55, 59, 60, 62, 64, 66, 67, 68, 67, 68, 68, 69, 70, 70 If your score was 59, what is your percentile? Report your answer in this format: 20th

**Math**

Which ordered pair is a solution of y=x-4? (-1, -5) (0, -3) (2, 6) (3, 1) Which equation has (2,-1) as a solution? y=2x-1 y=x+3 y=x-3 y= -2x +1

**Math**

I have to find the value of X but I don't where to start I will show the problem below. X 2 - = - 5 400 I have no clue where to start please help! :(

**Math Help**

What is the value of x in the equation 3(2x + 4) = −6? A. −3 B. 1 C. 12 D. 19 Please explain this I'm having difficulties with this equation, I don't want to fail and loose my A in the class. Thank you.

**Math**

What is the value of x in the equation 2(2x − 5 − 4) = 160 − 17? A. 40.25 B. 62.25 C. 80.25 D. 143.0 Need help going over this

**Math**

1. y=3x-7 y=-x+1 A. One Solution*** B. Infinitely Many C. No Solution 2. x+3y=12 x=y-8 A. One Solution B. Infinitely Many*** C. No Solution 3. x+y=5 x+y=-2 A. One Solution B. Infinitely Many*** C. No Solution

**Math (Algebra 2)**

The odds in favor of Carl beating his friend in a round of golf are 7 : 4. Find the probability that Carl will beat his friend. Would I take 7/(7+4)=77 So, 77 would be the correct answer? Thanks!

**Math**

I need help solving the problem not the answer. (Multiple Choice) The steps below show the incomplete solution to find the value of x for the equation 7x + 8 − 3x = −6 + 10: Step 1: 7x + 8 − 3x = −6 + 10 Step 2: 7x + 8 − 3x = 4 Step 3: 4x + 8 = 4 Which of these is ...

**MATH: Check my answers | HELP ASAP!!**

What is the diameter of a circle with a circumference of 282.6 m? Round your answer to the nearest meter. 4.5 m 9 m 90 m##### 45 m Check my answer please.

**math**

which scatter plot represents the data, (1,1.4), (1,8), (2,8.5), (2, 8.8),(2.5, 1.5), (2.5, 5.1), (4.3.5), (4, 6.3), (6, 4)

**Math**

Markus got a 63 out of 65 questions right on a social studies test. What will be the percentage he would get from the questions he got right? Explain and show your work.

**Math**

Sarah had got 40 out of 50 questions right. What is the percentage of questions Sarah got right? Explain and show your work.

**MATH**

sinx devide by 1plus sinx

**math**

a diamond weighing 2.5 carats was cut into two pieces. The two pieces were put on a balance scale, one on each side. An additional weight of 0.9 carats on one side was required to maintain balance. Find the weight, in carats, of the larger piece

**math**

"the product of x and y decreased by 2”, which answer is correct? x(y-2)or xy-2? please!

**MATH**

FIND N: (6^(3n)*9^(n+1))/8^n=1

**math**

The illustration at right shows a rectangular box, three of whose edges coincide with the coordinate axes, and one of whose vertices is (3, 6, 4). Give an equation for the plane containing the front face of the box. Do the same for the top and right faces.

**MATH**

Two buses leave the same station at 8:00 pm. One bus travels north at the rate of 30 kph and the other travels east at 40 kph. How many kilometers apart are the buses at 10 pm?

**Math**

At a professional sports game, T-shirts are shot out of a small cannon into the crowd. Suppose a T-shirt is shot from 1 meter off the ground with an initial upward velocity of 20 meters per second. The height of the path of the shirt, in meters, is approximated by the ...

**MATH**

A cube has a volume of 27 cubic units. What is the length of the side of the cube? I don't understand how to get the answer for this question!! Does it mean one side or all sides? I know that 27 / 4 = 6.75 but I don't understand if it means all sides or one side.

**Math**

My homework says "A circle is divided into 9 equal parts.Why is the measure of the angle?"I need help i dont get it!

**math**

What is the product of the complex numbers (-3i+4) and (3i+4)? I've forgotten how to do this...

**math**

Owen and Ethan have $175 together. How much money does each of them have if Ethan has $33 more than Owen?

**MATH URGENT HELP!**

you put 5,000 in an account that is compounded quarterly. the annual interest rate ,r, is 4%. how much will be in the account after 10 years?

**Math**

To get a driver's license, an applicant must pass a written test and a driving test. Pasts records show that 80% of the applicants pass the written test and 60% of those who have passed the written test pass the driving test. Based on these figures, how many applicants in a ...

**math**

A data set is shown below. x y 1 6.00 2 5.04 3 4.23 4 3.56 5 2.99 6 2.51 7 2.11 Using an exponential best-fit model, what is the residual when x = 1. Round your answer to the nearest hundredth. This is the problem i dont understand line of best fit i dont get at all

**math**

A set of data is shown below. x: –1 0 1 2 3 4 5 y: 3 7 5 6 7 8 Using a line of best fit, what is the value of the residual for the data at x = 2? Round your answer to the nearest thousandth. I dont remember line of best fit if you could please explain this problem.

**Math**

A muffin recipe calls for a ratio of 5 cups of flour to 2 cups of sugar. For each cup of sugar that is used, how many cups of flour are needed?

**Math**

Is x+3=2y and x=2y-3 have infinitely solutions or one solution or no solution

**Math NEED HELP URGENT**

At noon, Professor Simon has a petri dish with 10,000 cells of Bacteria A. In another petri dish, he has 33,000 cells of Bacteria B. Every hour, Bacteria A grows by 8%. Every hour Bacteria B cells die off, decreasing the number of cells by 6%. After how many hours will there ...

**Math- PLEASE HELP!!**

At noon, Professor Simon has a petri dish with 10,000 cells of Bacteria A. In another petri dish, he has 33,000 cells of Bacteria B. Every hour, Bacteria A grows by 8%. Every hour Bacteria B cells die off, decreasing the number of cells by 6%. After how many hours will there ...

**Math**

A recipe requires 3/4 cups of nuts for 1 cake. Enter the maximum number of cakes that can be made using 7 1/2 cups of nuts

**Math**

A fair charged $2.50 admission for adults and a dollar for children. The receipts for 1 day were $1951 on 1300 paid admissions. How many adults attended the fair that day?

**Math**

Match the expressions with thier equivalent equations in the columns. List A: List B: 6x+12 6(1+x) 6+6x 6x-6 6(x-1) 6(x+2) Fill in the blank: The expression 6x+12 is equivalent to the expression __________ The expression 6+6x is equivalent to the expression __________ The ...

**Math**

Marissa bought 6 fewer pints of soda then orange juice.how many cups of soda did she buy

**Math**

I help solving these out can someone work through them with me???? 19. WorkPad Note: In questions 19-21, remember to show all of the steps that you use to solve the problem. Be sure to use the text box where the question mark (?) first appears to show your mathematical work. ...

**math**

ice in a refrigerator melts at rate of 3 kg per hour. the temperature outside is 27°c. find the minimum power output of a motor used to drive the refrigerator,which just prevents ice from melting. latent heat of ice = 80 cal/g,J=4.2 joule/cal, 1 h.p = 746 w

**Math (Mrs. Sue help!!!)**

Solve the inequality. d - 6 > -4 A. d > -2 B. d > -10 C. d > 2 D. d > 10

**math**

Time Height (Weeks) (CM) 1 1 2 4 3 6 4 9 5 11 ~Ok i have this problem and its a correlation coefficient, There is a lot of questions but how would you find if its linear or exponential.

**Math**

Now I really need help with this one because every time I think it is one answer it ends up wrong. Identify the question that is NOT statistical. A) According to the rules, how many swimmers are on a team? B) What were the times of the top five swimmers in the competition? C...

**Math**

|-10| + |5| A) -15 B) -5 C) 5 D) 15 I think A is the answer.

**Math**

Equivalent Ratios x y 3 4 9 ? 18 24 What number is missing from the table of equivalent ratios? A) 10 B) 12 C) 15 D) 16 i think it is 16 or 12

**Math**

A salesperson at a furniture store earns a 3% commission on all sales. How much commission does the salesperson earn on a $1400 sale? I think it is $420.

**Math**

What are the like terms in this expression? 9a - 3b + 4ab A) 9a and -3b B) 9a and 4ab C) 9a, -3b, and 4ab D) no like terms I think it is d.

**Math**

If each cube represents 0.25 in3, what is the volume of the prism? A) 6 in3 B) 12 in3 C) 48 in3 D) 75 in3 I am not really goo with these, but I think the answer might be b. Please give me the explanation. Thank you

**Math**

A swimming pool and deck are built in a rectangle with length 40 ft and width 18 ft. If the pool itself is 320 square feet, what is the area of the deck itself? A) 320 square feet B) 400 square feet C) 480 square feet D) 560 square feet I think it is c.

**Math**

For which value of x is the equation 2(1 + x) = x + 3 true? A) 1 B) 2 C) 3 D) 4 I think it is c.

**Math**

Is the decimal 2.628 considered to be statistically significant?

**math**

Santiago, a park ranger, was trying to estimate the number of catfish in a lake. He randomly caught 32 catfish, tagged them, and let them go. Six months later, he surveyed fisherman at the lake about how many catfish they caught that were tagged. His survey results showed that...

**math**

what is 8,903.045 in 100s place

**math**

A prism is completely filled with 96 cubes that have edge length of 12 cm. What is the volume of the prism?

**Math**

Sam ordered 1/2 of a sandwich. He only ate 1/2. How much of the whole sandwich did he eat?

**math**

Camila wanted to learn cooking so that she could help out at home. In the cooking class, 10 students shared 6 8 kg of sugar equally. How much sugar would each student get? (Please round off your answer to the nearest whole number if needed. Leave your answer in g)

**Math - Mean Value Theorem**

Suppose f(x)=αx^2+βx+γ is a general quadratic polynomial with α≠0 and let [a,b] be any interval. According to the Mean Value Theorem there is at least one number c such that f(b)−f(a)=f′(c)(b−a). In this particular case the number c is unique and it's independent ...

**Math/Algebra**

Explain the composition of an algebraic expression, 3 sentences, an example

**Math ASAP**

Which number is irrational A. 3/17 B. 25/ C. 0.6 D. 33/

**Math**

Graph the two functions below, determine if they wre inverses based off the graph. Explain f(x)=x^2-3,g(x)=square root x+3

**Math - calculus**

Suppose f(x)=x^p where p>1 and [a,b]=[0,1]. According to the Mean Value Theorem there is at least one number c such that f(b)−f(a)=f′(c)(b−a). In this particular case the number c is unique but it depends on p. c=____ Your answer will be in terms of p.

**Math**

Solve the missing variable e^(x+6)+5=1

**Math**

During an epidemic, the number of people who have never had the disease and who are not immune (they are susceptible) decreases exponentially according to the function where t is time in days. f(t)=15,000e^-.05t Determine how long it will take for the initial number of people ...

**Math**

You rent x pairs of shoes for $2 each. You buy the same number of drinks for $1.50 each. You also pay $9 for a bowling lane. Write an expression in simplest form.

**Math**

In a state legislature there were 119 more members in the House of Representatives than in senate. If there were m members in senate, write an expression to represent the totial members in the state legislature. PLZ HELP!!!!!

**Math**

In a state legislature there were 119 more members in the House of Representatives than in senate. If there were m members in senate, write an expression to represent the totial members in the state legislature. PLZ HELP!!!!!

**Math**

Write an addition equation must have one two and a three digit addend and use all of these digits 662-228-8000