# Math

## Recent Questions

**Math**

A magician showed a magic trick where he picked one card from a standard deck. Determine what the probability is that the card will be a red color queen card ?

**Math**

I am between 40 and 50 and I have 17 ones. Who am I?

**Math**

The diagonal of a square garden 17ft. Determain the perimeter of the garden, rounded to 3 decimal places.

**math**

a circular track has a circumference of 200 pi squared meters. what is the radius of the track?

**MATH**

I just need to know how to set this problem up. You are given 28 feet of fencing and need to enclose a patio on all four sides. The following variables are defined: Let X represent the width (in feet) and Y represent the length (in feet)of the enclosed patio. Let P represent ...

**Math - Calc/Algebra/Trig**

I'm trying to find all the points on the graph y=4/3cos^3x-cosx where the tangent line is horizontal. I took the derivative, which gave me: -4cos^2(x)sin(x)+sin(x) Now I need to solve it for x and I'm not sure how. Can you help?

**Math**

A teacher made a pair of foam dice to use in math games. Each cube measured 10inches on a side. How many square inches of fabric were needed to cover the two cubes?

**math**

simply the following (-6*4x^2*y^3/27xy^4)^1/3

**Math-decimals**

Is 20 times 5/6 greater or less than 20?

**math**

how many pounds of tea worth $1.54 a pound should be mixed with tea worth $1.70 a pound to make 40 pounds of blended tea to sell at $1.60 a pound?

**Math**

A train goes twice as fast downhill as it can go uphill, and 2/3 as fast uphill as it can go on level ground. If it goes 120 mph downhill, how long will it take to travel 45 miles on flat land?

**math**

If the sum of the 4th term and the 7th term is 45.The sum of the 9th term is 117.Find the term when the sum of it is 600

**Help MATH**

1. does the equation represent a direct variation? if ao find the constant of variation 5x=-3y Any help???

**Math**

Alex bought 9 tickets for $30. Adult tickets cost $4 and children's cost $2. How many children's tickets did he purchase?

**Math**

Hi! I just want someone to check my answers please! I cannot provide you with any pictures as I have gotten them off of my schools website. You cannot access these pictures because you have to be logged in. 1. Andrea drew triangle JKL as shown. A. The sum of the two angles ...

**math**

(x/50)+(x/25)+(3x/50)+(2x/25)+...+2x=

**math**

Sam charges a $5 travel fee and then $3.25 per hour for labor. How many hours will he need to work to make $18?

**Math - Sequences**

Could someone help me with this question?? What are the first four terms of an arithmetic sequence if the common difference is 1.5 and the first term is 15? A. 15, 30, 45, 60 B. 15, 16.5, 18, 19.5 C. 15, 22.5, 33.75, 50.625 D. None of the above

**math**

Find the height of a triangle with area = 110 ft2 and base = 10 ft. answers are a)5.5 ft b)22 ft c)550 ft d)11 ft

**Math (Algebra 2)**

Ann and Tom want to establish a fund for their grandson's college education. What lump sum must they deposit at a 9.39% annual interest rate, compounded annually, in order to have $20,000 in the fund at the end of 10 years? I cannot get the right answer.

**math**

Mike's age right now is exactly 3 times his age 3 years hence minus 3 times his age 3 years ago. How old is Mike right now?

**math**

If the area of parallelogram ABCD = 246 mm2 and h = 20.5 mm, what is the length of the base of triangle ABD?. the answers are a)12mm b)24mm c)123mm d) not enough info

**Math**

1. All real numbers that are less than -3 or greater than or equal to 5 A. x<-3 or xâ‰¥5*** B. x<5 or xâ‰¥-3 C. xâ‰¤-3 or x>5 D. xâ‰¤-3 or xâ‰¤5 2. The time a cake must bake is between 25 minutes and 60 minutes, inclusive. A. 25<x<30 B. 25...

**math**

Which set of ordered pairs has point symmetry with respect to the origin (0, 0)? (9, 2), (-9, 2) (9, 2), (-9, -2) (9, 2), (9, -2) (9, 2), (2, 9)

**math**

Write a function that represents the situation. Find the balance A in the account after the given time period t . $2000 deposit that earns 5% annual interest compounded quarterly; 5 years

**urgent math help plz !!**

The angle θ lies in Quadrant II . sinθ=34 What is cosθ ? −7√/4 7√/4 3/4 −3/4 <my answer

**Math(Please help!)**

1. How do the graphs of y=1/x and y=5/(x+6) compare? I need steps because I want to be able to do these type of problems. Thank you!

**Math**

What operation do I use to solve this problem? Ed's car can travel 93.5 miles on 4.25 gallons of gas. How far can the car travel on 1 gallon of gas?

**Math**

From the top of a tower,the angle of depression of a boat is 30degree if the tower is 20cm high how far is the boat from the foot of the tower

**math**

there are 20 students in mark`s homeroom class. Ten percent of the students in marks homeroom class are also in art class He finds the number of students in his homeroom class who are also in art class like this . Can you tell me the answer of how many error he made.

**math**

What is the standard deviation of the following test scores? Round your answer to the nearest hundredth. 82, 76, 93, 82, 73, 80

**Math**

7.) Old McDonald wants to build a fence around his farm. If the area of his farmland is 400 square meters, what would the perimeter of the fence be? 200 feet 20 feet 40 feet 80 feet(my answer) 8.) 8) A square has an area of 29 square units. Which is the best estimate of the ...

**math statistic**

One of your friends knows that you are taking Advanced Placement Statistics and asks for your help wither Chemistry lab report. She has come up with five measurements of the melting point of a compound: 122.4, 121.8, 122.0, 123.0, and 122.3 degrees Celsius. a. The lab manual ...

**math**

solve for x in the following. (a) 3/4x+5/6x=5x-125/3 (b) 2(3x-7)+4(3x+2)=6(5x+9)+3

**Math**

The functions of f(x), g(x), and h(x) are defined below: f(x) = -2x g(x) = 2x + 5 h(x) = x^2 + 3x - 10 Calculate the indicated function values. 1. f(a+b) 2. f(g(x))

**Math**

In a form of 30 girls, 18 play netball and 14 play hockey, whilst 5 play neither. Find the number of those who play both netball and hockey?

**Math**

(x-1)/2+(x-2)/2+(x-3)/2+...(x-100)/2=...

**Math - Calculus**

f(x) = { x^2sin(1/x), if x =/= 0 0, if x=0} a. find lim(x->0)f(x) and show that f(x) is continuous at x=0. b, find f'(0) using the definition of the derivative at x=0: f'(x)=lim(x->0) (f(x)-f(0)/x) c. Show that lim(x->0)f'(x) does not exist. In particular, this means ...

**math**

perimeter of a rectangle is 10 times the width. The length is 9 metres more than the width.Find the width of the rectangle.

**Math**

A positive integer is 2 less than another. If the sum of the reciprocal of the smaller and twice the reciprocal of the larger is 5/12, then find the two integers. algebraic expression is: 1/n-2 + (2)1/n = 5/12

**math**

Mary has rehearsed her ballet solo for five and a half hours. A week from now, she wants to have rehearsed at least a total of nineteen and a half hours. If she rehearses for the same amount of time each day for the next 7 days, at least how many hours must she rehearse per day?

**Math**

Beth has 1/4 bag of candy. She ate 1/2 of the candy. What fraction of the whole bag is leftover.? I say 7/8, she ate 1/2 of 1/4 which is 1/8, there are 8/8's in a WHOLE BAG... subtract the 1/8 she ate and there are 7/8 left. The question Asks what fraction of the WHOLE BAG IS ...

**Math**

Yolanda buys two types of flowering plants. She buys 36 geraniums and 63 marigolds she wants to plant an eeach row will contain only one type of flowering each row will contain only one type of flowering plant Yolanda uses all the plants she bought in her garden determine the ...

**Math**

Yolanda buys two types of flowering plants. She buys 36 geraniums and 63 marigolds she wants to plant an eeach row will contain only one type of flowering each row will contain only one type of flowering plant Yolanda uses all the plants she bought in her garden determine the ...

**Math**

Divide the sum of -1/12 and -4/9 by difference?

**Math**

A large tank is being filled from a tap delivering water at a rate of 125L/hr. If the delivery rate were increased by 25L/hr the tank would be filled 1 hour and 20 minutes sooner. Determine the volume of the tank.

**math**

The mean age of the 43 presidents of the United States (as of 2011) on the day of inauguration is 54.6 years, with a standard deviation of 6.3 years. A researcher constructed a 95% confidence interval for the mean age of presidents on inauguration day. He wrote that he was 95...

**Math**

Alex mounts the clock on a wood base with the shape shown at the right what is the area of the wood base the composite figure is a square with a semicircle on top it the square is 18 inches in length and 20 inches in height

**math**

Traveling from City 1 to City 2, a pilot planned a southeast course along the path labeled d. Instead, a storm forced the pilot to travel 16 miles south, then 12 miles east to reach City 2. How many extra miles was the pilot forced to fly? ~ I got D and D is 20

**Math Breakdown/ please help!!**

WAGE---$ 17.00-an hour---------ANUALLY---28,285.28 APARTMENT VALUE 17.34hrs/pay period towards an apartment value of $934/month----ANUALLY---$11,208----TOTAL-------$39,493.28. My question is: first of all, I get, 17X40= $2,720-not 28,285.28, above. ALSO, I am trying to ...

**Math**

Alex then paints the face of the clock with white paint. It has a diameter of 14 inches. What is the area of the clock face? Next, Alex glued a band of metal around the circumference of the clock. What is the length of the metal band?

**Math , plz help!!!!!!**

A typical Stone on the lowest level of the Great Pyramid in Egypt was a rectangular prism 5 feet long by 5 feet high by 6 feet deep and weighed 15 Tons. what was the volume of the average Stone?? how much did one cubic foot of this stone weigh???plz help this is an emergency ...

**math**

Construct a triangle ABC in which BC = 5.8cm ,angle B= angle C= 30°.

**Math 3rd grade**

Ms. S cut a pizza into 8 equal slices. Each person in her family ate 2 slices. If there are 3 people in her family, what fraction of pizza did they eat all together?

**math**

WAGE---$ 17.00-an hour---------ANUALLY---28,285.28 APARTMENT VALUE 17.34hrs/pay period towards an apartment value of $934/month----ANUALLY---$11,208----TOTAL-------$39,493.28. My question is: first of all, I get, 17X40= $2,720-not 28,285.28, above. ALSO, I am trying to ...

**Math**

Which missing side length makes the perimeter, p=18 feet, true?

**Math**

Ross uses nylon string as a border around a square picture. The string is 60 inches long. What is the area of the picture in square inches? Show your work.

**Finding The Missing Percent/Math**

1) ____ of 50% = 45.5 2) ____ of 3 = 1.8 3) 56% of ____ = 3.92 4)69% of 30 = ____ 5)29% of ____ = 26.1 6) ____ of 20 = 6.2 7)82% of 10 = ____

**math**

____ of 80= 60?

**Math**

Brandy has a card collection with 64 basketball cards 32 football cards and 20 for baseball cards he wants to arrange the cards and equal piles with only one type of card in each pile how many cards can he put in each pile?

**Math**

Graphic designer has offered client 3 options. Poster 1 16x20 inches. Poster 2 1/2 the side of option 1. Option 3 poster that is 5/4 the size of Option 1. The photo on Option 1 is 4x5inches what size would that photo be on Option 2 and Option 3?

**Math**

The mass of the boulder is 48,567 kilograms.what is the mass of the boulder in metric tons?

**Math**

Write the solution of the inequality in set-builder notation: 5r+8<63 {r|r<11}*** {r|r>11} {r|r<12} {r|r>12}

**Math maps scale**

the distance from chillicothe to the current capital is 48 miles using the scale on the map below how many centimeters apart are the two cities

**math**

A band sold out a concert with 4200 seats. A random sample of 120 ticket buyers is surveyed and 28 buyers made their purchase on the first day the tickets went on sale. How many of the 4200 tickets are likely to have been sold on the first day they were available? Show your work.

**Math**

1. The sides of triangle CAB are in the ratio of 2:3:4. Segment BD is the angle bisector drawn to the shortest side, dividing it into segments AD and DC. What is the length, in inches, of the longer subsegment of side AC if the length of side AC is 10 inches? Express your ...

**Math HELP**

1. which of the following side lengths will not make a right triangle A. 12, 16, 20 B. 5, 12, 13 C. 6, 17, 20 D. 3.5, 12, 12.5

**Math(Please help!)**

Describe the vertical asymptote and hole for the graph of (x^2+x-6)/(x^2-9). a. asymptote: x=2; hole: x=-3 b. asymptote: x=3; hole: x=2 c. asymptote: x=-3; hole: x=3 d. asymptote: x=3; hole: x=-3 I know that it has to either be b or d because the asymptote is x=3. Can someone ...

**Math**

Which equation can be used to find the measure of an angle that is supplementary to POS

**Math question**

A cone-shaped container has a height of 9 in. and diameter of 2 in. It is filled with a liquid that is worth $2 per cubic inch. What is the total value of the liquid in the container? Use 3.14 for π . Enter your answer in the box. I think it's 18.84 can someone check my work?

**Math**

Dave uses 500 milliliters of juice for a punch recipe. He mixes it with two liters of ginger ale. How many milliliters of punch does he make?

**Help Math One Queation**

A cone-shaped container has a height of 9 in. and diameter of 2 in. It is filled with a liquid that is worth $2 per cubic inch. What is the total value of the liquid in the container? Use 3.14 for π . Anyone who knows the answer are just willing to help .. help pleases

**Math**

The shipping clerk packs a cube with side lengths of 8 inches into a box with side lengths of 10 inches. What is the volume of the space left in the larger box for packing materials?

**Math and Please Help!**

According to the distributive property, 6 (5 + 3) = A) 6 (5 + 3) B) 6 (3 + 5) C) 6 × 5 + 3 D) 6 × 5 + 6 × 3 I think it might be b.

**math**

3.which one of these is a rational number a 150 b. 441 c. 200 d. 250##

**Math**

Andy & Jack each have a number of candies. Andy gives 1/2 of his candies to Jack. After that Jack gives 1/3 of his candies to Andy. At last both of them have 20 candies each. How many candies did Andy have at first?

**math**

suppose you borrow RM 14,000 at a rate of 10.0 % and must repay it in 5 equal installment at the end of each of the next 5 years.How much interest would you have to pay in the first year?

**Math**

Given that the measurement is in centimeters of the circle to the nearest tenth (Use 3.14 for r)

**4th grade math**

Eric had 10 cookies. He gave 1/2 to Jeff. he also gave 1/5 of cookies to Mike. How many cookies does each boy have? Jeff: 10 x 1/2 = 5 Mike: 10 * 1/5 = 2 Eric = 10-(5+2)= 3

**math**

Let f of x equals 4 for x less than or equal to 3 and equals the quantity 7 minus x for x greater than 3. Use geometric formulas to evaluate the integral from x equals 1 to x equals 7 of f of x, dx. I got 16 but i dont think it is right.

**Business Math**

a) Given x + y = 2 and y = x² - x - 2, find the x-intercepts and y-intercept of the parabola. b) Find the turning point of the parabola. c) Find the x intercept and y intercept of the line graph. d) Find the point(s) of intersection of the line graph and the parabola. e) ...

**Business Math**

a) You have N$ 10,000 to invest, which you want to grow to N$ 100,000. If the bank offers you an interest rate of 6% p.a. compounded monthly, how long must you invest the money for (in months or years)? Round your answer to one decimal place. b) Instead of investing N$ 10,000...

**Business Math**

You want to buy furniture which will cost N$ 20,000. You could take out a personal loan for N$20,000, which would charge you 9% p.a. interest compounded monthly. You also have N$20,000 in an investment account, where you earn interest of 12% p.a. compounded annually. Taking ...

**Business Math**

a) Solve for x: 2x² + 5x = 3 b) Solve for x and y: x + y = 4 and x² + y² + xy - 12 =0 c) Solve for x: 8 2x + 3 = ½x² d) Factorise: 6x² - 7xy - 3y² e) Factorise: 4x³ + 5x²y - 4xy² - 5y³

**Business Math**

Craig runs a business importing shoes from Italy and selling them in Namibia. For the below questions (a – g), rounds your answers to cents (two decimal places). a) If the Euro / Namibian dollar exchange rate is € 1 = N$ 13.90 and the cost price of a pair of shoes is € ...

**Business Math**

William has been contracted to paint a school classroom. The classroom is 20 m long, 15 m wide and 5 m high. There are four windows (2m by 3m) and a door (2m by 1m). a) What is the cost of painting the ceiling at N$ 6.50 /m²? b) What is the cost of painting the walls (...

**Business Math**

a) A company issued 150,000 shares to three investors in the ratio of 2:3:5. How many shares does each investor own? b) If the company declares a dividend of 35 cents per share, how much (in N$) will each investor receive?

**Business Math**

Determine the following (convert to a mixed number where relevant). a) 20 + 10 × (-½) ÷ 5 b) 16 ÷ (3 + 5) × -1 + 2³ c) ½ + ⅓ + ⅜ d) 3⅝ + 4 × -2 e) -1 × -1 ÷ -2 + 3 + 2°

**Business Math**

Martha earns a gross salary of N$ 40,000 per month. The following deductions come off her gross salary: income tax 28%, pension fund 10%, medical aid fund 5%. a) How much (in N$) does Martha pay in income tax? b) How much (in N$) does Martha contribute to her pension fund? c) ...

**math**

log(u^2÷v) ^3

**Math**

ABCD is cyclic quadrilateral and AB =CD then prove that AC=BD

**Math**

I need help not sure if I'm doing this correctly. Parts of parts: Find each of the following parts of parts without drawing a diagram for each problem explained clearly A) 2/3 of 2/7 I think it's 4/15 because your multiplying. B) 6/11 × 2/7 I think it's 12/77 your multiplying...

**Math**

I need to know if I'm answering this correctly. How can you figure out the size of a of a part without having to draw a diagram? consider example of 2/3 × 4/5. A) describe how you could draw a diagram to me this calculation. I would do 5 vertical lines And 3 diagnosis lines. ...

**Math**

An investment is initially worth $11,100. Write a formula for the function V(t) representing the value of this investment after t years in each of the following situations: A) The value decreases by $889 per year. B) The value increases by $899 per year.

**math 103**

find a possible equation for a line that is perpendicular to the graph of 5x-3y=15 if the two lines intersect at x=15

**Math**

The 112th Congress of the United States of America has 535 members, of which 87 are women. An alien lands near the US Capital and treats members of Congress as a random sample of the human race. He reports to his superiors the 95% confidence interval for the proportion of the ...

**Math**

You shoot a rifle at an angle of 42 degrees. The bullet leaves your rifle at a height of 6 feet and a speed of 810 feet per second. So I used the equation h(t)=6+(810 sin42)t-16t^2 to calculate that the bullet will hit the ground after 33.88580 seconds. Now how do I calculate ...

**Help math**

find 2 exponential functions with asymptote of y=80 , with points (0,176) (1,169) (3,156) (5,146) (20,101) (30,90) (60,81).one should have the base of "e"

**Math**

Know if 28 and 3 if the first number is multiple of the second

**math**

Identify two regular and two irregular polygons in your home or community. How do you know they are regular or irregular? Give one example of each regular and irregular polygon that you noticed in your home or community. Do you think regular or irregular polygons are used more...