Tuesday

March 3, 2015

March 3, 2015

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**math**

I already know the answer... it's 14. However, I do not know how to get this right answer. Please show me step by step. I have a test tomorrow and there will be a question somewhat like this one on it. Thank you so much!! 1. A physical education class has three times as ...
*Tuesday, February 10, 2015 at 7:25pm*

**math**

I'm in grade 5 and I need help on an area and perimeter question. The area of a rectangle is 300mm and the length of it is 15 mm. I need to find out the width of this rectangle.
*Tuesday, February 10, 2015 at 7:19pm*

**math**

I'm in grade 5 and I have a area and perimeter question. The area is 300mm2 and the width is 15mm, I need to know what the length is. Thanks for your time.:-)
*Tuesday, February 10, 2015 at 7:05pm*

**Math**

Packaging Tangerines The produce manager at the grocery store had 410 tangerines. He put some of them into 15 cartons containing 12 tangerines each. He then put the rest into 14 cartons, each containing the same number of tangerines. How many tangerines were in each of the 14 ...
*Tuesday, February 10, 2015 at 6:53pm*

**Math**

Packaging Tangerines The produce manager at the grocery store had 410 tangerines. He put some of them into 15 cartons containing 12 tangerines each. He then put the rest into 14 cartons, each containing the same number of tangerines. How many tangerines were in each of the 14 ...
*Tuesday, February 10, 2015 at 6:15pm*

**chemistry**

i want to neutralize a 10 ml 3 molar sulfuric acid using calcium carbonate but don't know how to do the math the explanation confused me. (also i have to use sig fig and uncertainty)
*Tuesday, February 10, 2015 at 6:15pm*

**Math**

A gallon of gasoline is more than ___ liters but a little less than ___ liters. I think the answers are 4 and 5. Am I correct?
*Tuesday, February 10, 2015 at 6:12pm*

**math**

what is 2 5/8 - 3 6/8
*Tuesday, February 10, 2015 at 6:05pm*

**Math**

Calculate the slant height for the given fine. Round to the nearest tenth. Diameter=8cm Height=9cm A. 10.2 cm B, 11.4 cm C. 9.8 cm D. 12.0 cm I can't figure out how to do it. If someone can help me figure out how to do it step by step I would really appreciate it. Thank you
*Tuesday, February 10, 2015 at 6:04pm*

**Math**

A jet pilot is making a 1000 mile trip in her military Tomcat. She flies 800 mph for one hour and decides she wants to finish the trip so that she would have flown at an average of 1000 mph. How fast should she go to finish the trip and meet her goal?(Hint: Think carefully ...
*Tuesday, February 10, 2015 at 5:49pm*

**Math**

If a field has perimeter P, what shape maximizes the area? Justify your reasoning.
*Tuesday, February 10, 2015 at 5:45pm*

**math - exponent laws**

evaluate -(11/17^-10/(9/5)^(1/10) answer from Reiny: (-11/-17)^-10 = 1/(11/17)^10 = 77.725... (I stored that in A on my calculator) (9/5)^(1/10) = 1.0605.. so -(11/17^-10/(9/5)^(1/10) = -77.725... /1.0605... = -73.28837824 --- do we need to reciprocal -(11/17) to -(17/11) ?
*Tuesday, February 10, 2015 at 5:36pm*

**Math**

6.5 c=. Fl oz
*Tuesday, February 10, 2015 at 5:22pm*

**math**

What is your debt ratio? If you budget $375 to payoff your credit card debt and you payoff the highest interest card first while maintaining the interest accrued on the other card, how many months does it take you to pay it off and how much is the payment each time excluding ...
*Tuesday, February 10, 2015 at 4:31pm*

**math **

Your parents are buying a house for $187,500. They have a good credit rating, are making a 20% down payment, and expect to pay $1,575/month. The interest rate for the mortgage is 4.65%. What must their realized income be before each month and how much interest is paid at the ...
*Tuesday, February 10, 2015 at 4:30pm*

**Math**

A flat picture fram includes a glass retangle that is 8 inches by 10 inches. The whole fram is 12 inches by 14 inches. Whst is the area of the frame minus that glass?
*Tuesday, February 10, 2015 at 4:22pm*

**Math**

Write an algebraic expression equivalent to 5 less than c
*Tuesday, February 10, 2015 at 4:11pm*

**math**

I need to solve this problem , bought 6 ribbons each ribbon is 1/4 yard long how many yards of ribbons do i need to buy?
*Tuesday, February 10, 2015 at 4:10pm*

**Math**

A bag contains 120 marbles, some red and some blue. If there are 80 blue marbles, what is the ratio of red to blue marbles?
*Tuesday, February 10, 2015 at 4:01pm*

**math**

Sally is buying 6 identical shirts. The original price for one shirt is 39.99. The store is having a "buy one get one half off" sale and Sally has a coupon for an additional 25% off. The sales tax rate is 4 3/8. What is the total cost for the items Sally purchased. ...
*Tuesday, February 10, 2015 at 3:52pm*

**math**

Factor. 2 u - 14u + 49
*Tuesday, February 10, 2015 at 3:44pm*

**Math**

A rectangular prism has a volume of 280cm cubed. If the scale factor of a second rectangular prism is 2.5, what is the volume of the second rectangular prism?
*Tuesday, February 10, 2015 at 3:33pm*

**Math**

Explain why the product of any two consecutive natural numbers is even. Prove your conjecture.
*Tuesday, February 10, 2015 at 3:09pm*

**math**

Velocity V ms, of a moving body at time t seconds is given by V = 5t^2 -12t + 7
*Tuesday, February 10, 2015 at 2:56pm*

**Math**

Place grouping symbols in the expression so that it has a value of 22. 3 • 4 – 2 + 5 + 7 3 • [4 – (2 + 5) + 7] (3 • 4) – [2 + (5 + 7)] [(3 • 4) – 2] + (5 + 7) 3 • (4 – 2) + (5 + 7)
*Tuesday, February 10, 2015 at 2:52pm*

**math**

Given that OA = 3i – 2j + k and OB = 4i + j – 3k. Find the distance between point A and B to 2 decimal places.
*Tuesday, February 10, 2015 at 2:29pm*

**Math**

Find all pairs of integers such that when they are added they equal 100, and when they are multiplied they are at least 2000.
*Tuesday, February 10, 2015 at 2:17pm*

**math**

what is the weight in kg and height in cm for a patient who weighs 130 ponds and is 5ft 7 inches tall?
*Tuesday, February 10, 2015 at 2:11pm*

**Math**

For an art exhibit, Craig has to choose 3 ceramic mugs out of the 7 that he made over the summer. In how many ways can he arrange these 3 mugs in a row? I'm not looking for the answer, but only an explanation for why this is a permutation problem and not a combination one.
*Tuesday, February 10, 2015 at 2:10pm*

**Math**

The table shows the actual retail market share of passenger cards from Ford Motor Company as a percentage of the U.S. market. Year Market Share 1975 23.6% 1980 17.2% 1985 18.8% 1990 20.0% 1995 20.7% A mathematical model for this date is given by f(x) = 0.04x^2 - 0.8x + 22 ...
*Tuesday, February 10, 2015 at 2:08pm*

**math**

A particle moves on a straight line. The velocity after t seconds is given by V= 3t^2 – 6t – 8. The distance of the particle from the origin after one second is 1o meters. Calculate the distance of the particle from the origin after 2 seconds.
*Tuesday, February 10, 2015 at 1:55pm*

**math**

a class mate belives a triangle can have both a right angle and a obtuse angle. which of the following statements would you use to convince him he is incorrect?
*Tuesday, February 10, 2015 at 1:49pm*

**Math**

Pick what age you would like to be (may be your actual age if you like). Add 10. Multiply the result by 4. Add 200. Divide by 4. Subtract your original number. The final result is 60. Explain how I knew that.
*Tuesday, February 10, 2015 at 1:45pm*

**Math**

What does it mean by fine a binomial expression for n in general terms of a?
*Tuesday, February 10, 2015 at 1:07pm*

**math**

Find the value of θ between 0° and 360° satisfying the equation 5 sin θ = 4
*Tuesday, February 10, 2015 at 12:42pm*

**Math**

Insert the +,-,x,/ or parentheses between the numbers to find the total. How mant way? 1_2_3_4_5_6_7_8_9 = 60 Thanks
*Tuesday, February 10, 2015 at 12:01pm*

**Math**

On a Christmas package, Audrey needs to use only 40-cent stamps and 16-cent stamps. If she uses twice as many 40-cent stamps as 16-cent stamps, how many of each type of stamp must she use to mail a package costing $5.76 in postage? How can i set this up? I need help please.
*Tuesday, February 10, 2015 at 11:34am*

**Math**

Lita typed 2 times as fast as kala. The ratio of the number of words kala typed to the number of words rose typed was 4:1. If rose typed 48 words, how many words did lita type?
*Tuesday, February 10, 2015 at 11:30am*

**Math**

Kieran's savings is 9/2 of Simeon's savings. Simon saves 28 less than Kieran. How much do both of them save together.
*Tuesday, February 10, 2015 at 11:22am*

**Math**

Kieran's savings is 9/2 of Simeon's savings. Simon saves 28 less than Kieran. How am Uh do both of them save together.
*Tuesday, February 10, 2015 at 11:21am*

**math**

Use the figure to answer the following questions. figure for questions 1–3 1. Name a pair of complementary angles. (1 point) angle sign1 and angle sign4 angle sign1 and angle sign2 angle sign3 and angle sign4 angle sign1 and angle sign6 2. If mangle sign1 = 37°, what ...
*Tuesday, February 10, 2015 at 10:19am*

**math**

If You Have 6,7.2,4.8,10,and 6 on A triangular prism What is the length width and the height
*Tuesday, February 10, 2015 at 10:15am*

**math**

the 1st branch produced 1 orange. the 2nd branch produced 2 oranges, the 3rd branch produced 4 oranges, the 4th branch produced 8 oranges and the 5th branch produced 16 oranges. how many oranges will the 10th branch produce?
*Tuesday, February 10, 2015 at 9:39am*

**math**

Nicole is making a bowl of chex mix to serve to her guests .She has already put 45 cups of nuts,410 cups of raisins and 112 cups of chocolate chips in the bowl.If she wants to make 4 cups total ,how much chex cereal will she need to add?
*Tuesday, February 10, 2015 at 9:25am*

**math**

A model rocket is launched straight upward. Its altitude y as a function of time is given by y = btct2 , where b = 82 m/s, c = 4.9 m/s2 is the time in seconds, and y is in meters. (a) Use differentiation to find a general expression for the rockets velocity as a function of ...
*Tuesday, February 10, 2015 at 8:09am*

**Math**

From post C, An airplane and a helicopter travel to different islands.The plane travels.415 km N 60degrees45minutes E to island A. and the helicopter travels to island B at S 19degrees5minutes E for 120 km. what is the distance between tthe two island
*Tuesday, February 10, 2015 at 7:55am*

**Math**

a car travels N28 degrees 20 minutes for 86 km and then N61 degrees 40 minutes W for 124 km what is its distance and bearing from the starting point
*Tuesday, February 10, 2015 at 7:54am*

**math**

Tell whether the value of the expression is less than the base of the expression: a) 2^3 b)(5/6)^3 c) 3^1 d)(5/2)^3 e) 1^3 ...b)equals 125/216. So is the correct answer YES it is less than the base? ...d)equals 125/8. Is the correct answer NO it is not less than the base?
*Tuesday, February 10, 2015 at 5:13am*

**math**

Show how to write and evaluate an expression to represent and solve this problem: Jeff and his friend each text four classmates about a concert. Each classmate then texts four students from another school about the concert. If no one receives the message more than once, how ...
*Tuesday, February 10, 2015 at 4:48am*

**Math**

Joe wants to carpet a 12 foot by 18 foot rectangular living room and a square bedroom. One side length of the square bedroom is 12 feet. Carpet costs $3.50 per square foot. What percent of the total amount Joe will pay will be spent on carpeting the bedroom? Show your work ...
*Tuesday, February 10, 2015 at 4:39am*

**math**

Tell whether the value of the expression is less than the base of the expression: a) 2^3 b)(5/6)^3 c) 3^1 d)(5/2)^3 e) 1^3 THANK YOU!
*Tuesday, February 10, 2015 at 4:35am*

**math**

FOUR STEPS: Amy and three friends launch a new website. Each of the four friends e-mails the web address to three new friends. These new friends forward the web address to three more friends. If no one receives the e-mails more than once, how many people will receive the web ...
*Tuesday, February 10, 2015 at 4:00am*

**Math**

On the moon the acceleration due to gravity is 5 ft/sec2. An astronaut jumps into the air with an initial upward velocity of 8 ft/sec. How high does she/he go? How long is the astronaut off the ground?
*Tuesday, February 10, 2015 at 3:39am*

**Math**

If x and y are positive integers such that x^2+y^2=13 and x>y, what is the value of x-y?
*Tuesday, February 10, 2015 at 1:58am*

**Math**

t=2x-y+5 t=y-2z+10 t=2z-2x+6 Based on the system of equations above, what is the value of t?
*Tuesday, February 10, 2015 at 1:30am*

**math**

the fifth grade students are planning a field trip to the Bay aquarium. there are 120 students,4 teachers and 8 parents. the aquarium charges $2 per student no charge for teachers or parents. it costs $50 an hour to charter a bus a bus will hold 56 people, two in a seat, and ...
*Tuesday, February 10, 2015 at 12:35am*

**math**

The angle which the tangent to the curve at the point (2, 5) makes with the horizontal
*Tuesday, February 10, 2015 at 12:21am*

**math**

a total of $5000 is invested at 2%, 3%, and 4%. the amount invested at 4% is equal to 2% and 3% combined together. the total interest gained for 1 year is $145. find the amount invested at each rate.
*Tuesday, February 10, 2015 at 12:04am*

**Math**

a circle is divided into 9 equal parts. What is the angle measure of two of those parts
*Monday, February 9, 2015 at 11:54pm*

**Math**

Familling new carpet and wants to know how much carpert they need , but they olso know that carpet is sold by the square yard. 23feetx9feetx6feet x 3feetx10 feetx19feet
*Monday, February 9, 2015 at 11:37pm*

**MATH - exponent laws**

how do you evaluated this? (-)sign ↓ _ __________( -11/-17)^-10 line is divide (9/5)^1/10
*Monday, February 9, 2015 at 11:02pm*

**Math **

To make granola, mix together 3/8 of a cup of cereal with 1/6 of a cup of honey. How many cups of granola will the recipe make?
*Monday, February 9, 2015 at 10:52pm*

**math**

If You Have 6,7.2,4.8,10,and 6 on A triangular prism What is the length width and the height
*Monday, February 9, 2015 at 10:41pm*

**math**

Yuri has a rope 12 meters long. He cuts into pieces that are 2 meters long. What fraction of the rope is one piece?
*Monday, February 9, 2015 at 10:24pm*

**Math**

A circle is divided into 18 equal parts.How many degrees is the angle for each part? How many degrees is the angle for 5 parts into ?
*Monday, February 9, 2015 at 10:23pm*

**math**

Unroll has 6 yards of ribbon. She needs 1/5 to make 1bow. How many bows can she make? Explain how to write the equation an by using representation
*Monday, February 9, 2015 at 10:14pm*

**Math**

Suppose you find the ratio of the lengths of adjacent sides in a parallelogram. This ratio is equivalent to the ratio of the adjacent sides in another parallelogram. Are the figures similar? Explain.
*Monday, February 9, 2015 at 10:05pm*

**Math**

Makala made 32 of 60 free throws. What is the experimental probability that Makala will not make the next free throw she attempts. Would it be 8 out of 15 and do u divide
*Monday, February 9, 2015 at 10:05pm*

**Math 110**

Find intervals of increase/decrease and classify all critical points of (a)g(x)=cos(x/(￼￼;x2 +9)) (b) f(x)=x5/3 −x2/3
*Monday, February 9, 2015 at 9:49pm*

**Math**

Let f(x) = 2x + 1 − sin(x), how many roots does f(x) have in the interval [−π, π]? Use the next steps to prove that it has only one root. a) Use the Intermediate Value Theorem to show that f(x) has at least one root. (b) Explain why f(x) is increasing on ...
*Monday, February 9, 2015 at 9:47pm*

**math**

the grade of 8 students on a 10-point test were 1,3,5,5,7,8,9,10 comute the mean of these scores
*Monday, February 9, 2015 at 9:32pm*

**Math**

The distance from the pole in the center of the tetherball circle to the painted circle is about 6 feet. What was the approximate radius of the tetherball circle?
*Monday, February 9, 2015 at 9:25pm*

**math (statistics)**

The following table shows the percentage of individuals in each age group who use an online tax program to prepare their federal income tax return. AGE ONLINE TAX PROGRAM (%) 18-34 16 35-44 12 45-54 10 55-64 8 65+ 2 Suppose a follow-up study consisting of personal interviews ...
*Monday, February 9, 2015 at 9:17pm*

**math**

The curve y= ax^3 -3x^2 -2x + 1 has the gradient 7 when x = 1. Find the value of a.
*Monday, February 9, 2015 at 9:09pm*

**math**

Kim has $4.75 in nickels and dimes. If she has twice as many dimes as nickels, how many of each coin does she have?
*Monday, February 9, 2015 at 9:04pm*

**Math**

A stone was dropped off a cliff and hit the ground with a speed of 120 ft/s. Using the fact that acceleration due to gravity is −32ft/s2, what is the height (in feet) of the cliff?
*Monday, February 9, 2015 at 8:27pm*

**Math**

Adam wants to compare the fractions 2/5, 1/6 and 1/3. He wants to order them from least to greatest and rewrite them so they all have th same denominator. Explain how Adam can rewrite the fractions.
*Monday, February 9, 2015 at 8:05pm*

**math**

how many total blocks would be needed to build the model for the given base plan [2] [1] [3] [1] [2] [2]
*Monday, February 9, 2015 at 8:02pm*

**Math**

After a busy day of orders, a florist has 6 roses, 7 lilies, 3 carnations, 35 chrysanthemums, 27 sunflowers, 18 violets, and 9 tulips left in her inventory. Part A: Write a ratio that compares the number of roses to the number of violets. Part B: Describe what three other ...
*Monday, February 9, 2015 at 7:53pm*

**math**

Nicole is making a bowl of chex mix to serve her guests.She has already put 45 cups of nuts.410 cups of raisins and 112 cups of chocolate chips in the bowl,If she wants to make four cups total, how much chex cereal will she need to add?
*Monday, February 9, 2015 at 7:46pm*

**math**

srry. the question was I have a rectangular garden and I only have 24 meters of fence to go around it. so what is the largest area I can make the rectangular garden. thanks for your time and sorry for bothering! I just need help to figure this out.
*Monday, February 9, 2015 at 7:33pm*

**math**

suppose im trying to build a rectangular garden but I only have 24 meters of fence to use. so what is the largest area I can make my rectangular garden? please help I don't get it! I have to use the USE format and I don't get the question can you just explain please?
*Monday, February 9, 2015 at 7:20pm*

**Math**

Q. Lincoln valley elementary held its annul skating party and 3 fourths of the 400 students came. Of the students who came,1 fifths brought skates from home. How many students rented skates? A. Do I mulpite 400 by 3 fourths than get the answer than mulpite 1 fifths by the ...
*Monday, February 9, 2015 at 6:48pm*

**math**

if a driver is at an acute angle and wants to be completely straight as she enters the pool. what will be the measure of the angle her body will form then?
*Monday, February 9, 2015 at 5:33pm*

**math**

Integrated Math 1. The Overland Trail: Traveling at a constant Rate. Who will make it? Need help graphing 3 sets of data on one graph?
*Monday, February 9, 2015 at 5:08pm*

**Math**

A bowl contained 68.1 grams of salt. Then, Latoya poured in another 28.49 grams. How much salt does the bowl contain now
*Monday, February 9, 2015 at 5:03pm*

**math**

A box in the shape of a rectangular prism has a dimension of 30 meters x 27 meters x 28 meters. What is the surface area of the box?
*Monday, February 9, 2015 at 4:44pm*

**Math**

Helping 3rd grade granddaughter and I am lost What property does this show? ****=* * * * This is all that is shown
*Monday, February 9, 2015 at 4:20pm*

**Business Math**

Newcastle auto plc has a current cash flow of 4.4 million and pays no dividends. The Present value of the company ´s future cash flows is 74 million. The company is entirely financed with equity and has 800.000 shares outstanding. Assume the dividend tax is zero. ...
*Monday, February 9, 2015 at 4:10pm*

**Math**

I am lost helping my 3rd grade granddaughter... This is what this problem shows and nothing else What property does this show? ****=* * * *
*Monday, February 9, 2015 at 4:03pm*

**Math**

Lori has 14.25 cups of cupcake batter. If each cupcake uses 0.75 cups of batter. How many cupcakes can Lori make?
*Monday, February 9, 2015 at 3:52pm*

**math**

The position of two towns X and Y are given to the nearest degree as X(45° N, 10° W) and Y (45 N°, 70° W). Find (a) The distance between the two towns in (i) Kilometers ( take the radius of the earth as 63711) (ii) Nautical miles ( take I nautical mile to be 1....
*Monday, February 9, 2015 at 3:43pm*

**Math**

What is 7/8-5/6 in simplest form? Please explain how to get your answer.
*Monday, February 9, 2015 at 3:41pm*

**3 rd grade Math**

how are perimeter and area? When building your club house did you have a more difficult time finding the perimeter or area? why?
*Monday, February 9, 2015 at 3:37pm*

**math algebra**

how do you factor 3x^3y+x^2y^2? i kind of don't understand the concept of factoring can you help? Thanks.
*Monday, February 9, 2015 at 3:16pm*

**Math**

What is 100^2-99^2+98^2-97^2+96^2-95^2 +...+ 4^2-3^2+2^2-1^2 ? (Find an expression where n is the largest number being squared, then use it to calculate the sum when n = 100. Hint: Examine specific cases where n is small. Then generalize).
*Monday, February 9, 2015 at 2:36pm*

**math**

If someone can explain how to do this problem so I can learn and understand. you have a sample of 50 people. Based on the histogram, find the proportion of weight loss values in the sample that are less than 10 pounds. Write your answer as a decimal, and do not round your ...
*Monday, February 9, 2015 at 2:17pm*

**math**

Davida bought a pair of earrings, each in the shape of an isosceles triangle with equal side lengths of 24 mm and a base length of 16 mm. She used one earring to make another pair of earrings, similar in shape, with the base length equal to 11 mm. What is the length of the ...
*Monday, February 9, 2015 at 1:43pm*

**math**

a rectangular block has a square base of area 49cm square its height is 10 cm find its total surface area
*Monday, February 9, 2015 at 11:45am*

**math**

a rectangular block has a square box is 486 cm find the length of an edge of this box
*Monday, February 9, 2015 at 11:37am*

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