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April 1, 2015

Homework Help: Math

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Recent Math Questions

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math
Find the reciprocale of 0.342. Hence evaluate: (ã0.0625)/0.342
Wednesday, February 11, 2015 at 6:16pm

math
If a fowl is treated, probability of dying is 1/10 while if not treated the probability is 7/10 calculate the probability that, a fowl picked at random from the 36 fowl is (i) Treated with the drug and will die (ii) Not treated with the drug and will die (iii) Not treated with...
Wednesday, February 11, 2015 at 6:11pm

6th grade math
When solving an inequality, why is it necessary to perform the same operation on each side of the inequality sign?
Wednesday, February 11, 2015 at 5:49pm

Math
Translate the sentence into an inequality. Six increased by the product of a number and 10 is at most −16 . Use the variable x for the unknown number.
Wednesday, February 11, 2015 at 5:47pm

math
if $13.69 is the price of a pair of sneakers after 75% was taken off, what was the original price of the sneakers?
Wednesday, February 11, 2015 at 5:23pm

Math - Answer Check
Write the composition function and then find the value. f(x) = 2x+3 g(x) = x^2 k(x) = square root(x - 4) 1. g(k(x)) g(k(20)) My answer: Function is x - 4, the value is 16. 2. f(g(x)) f(g(2)) My answer: Function is 2x^2 + 3, the value is 11.
Wednesday, February 11, 2015 at 5:12pm

math
Milky uses 192 beads to make a bracelet and a necklace.It takes 5 times as many beads to make a necklace than it does to make a bracelet.How many beads are used to make the necklace 192 divided by 5 is 38 and I got remainder of 2 but I don't know what I did wrong.did I do ...
Wednesday, February 11, 2015 at 5:06pm

math
7^-(1/5) / 7^-(7/5) * 7^3/5 can be simplified as 7^a/b where a and b are positive integers. find a*b-a i'm not good when it come to negative exponent, plz help!
Wednesday, February 11, 2015 at 5:02pm

math
Milky uses 192 beads to make a bracelet and a necklace.It takes 5 times as many beads to make a necklace than it does to make a bracelet.How many beads are used to make the necklace
Wednesday, February 11, 2015 at 4:57pm

Math
Sandi counted all the parallelograms of any size she could find in the design below how many parallelograms are there in all
Wednesday, February 11, 2015 at 4:38pm

Math
Write an numerical expression equivalent to (3) (3) (3) using exponents. Evaluate the expression above
Wednesday, February 11, 2015 at 4:06pm

math
The acceleration am/s^2 of a particle moving in a straight line is given by a = 18t – 4, where t is time in seconds. The initial velocity of the particle is 2 m/s a) Find the expression for velocity in terms of t b) Determine the time when the velocity is again 2m/s
Wednesday, February 11, 2015 at 4:02pm

^Math.^ Pls,I need help
QUESTION: Find the quadratic equation,which has difference of roots equal to 2 and the difference of the squares of roots equal to 5
Wednesday, February 11, 2015 at 4:01pm

Math
During the summer, you mow lawns for extra money. One customer pays you to mow the lawn every 6 days and another customer pays you to mow the lawn every 9 days. If you mow both lawns today, in how many days will uou mow both lawns again on the same day?
Wednesday, February 11, 2015 at 3:51pm

math
Shopping centers X, Y and Z are such that Y is 12 km south of X and Z is 15 km from X. Z is on a bearing of 330° from Y.
Wednesday, February 11, 2015 at 3:38pm

math
The length and breadth of a rectangular paper were measured to be the nearest centimeter and found to be 18 cm and 12 cm respectively. Find the percentage error in its perimeter.
Wednesday, February 11, 2015 at 3:35pm

Math lit, geography, life sciences and agriculture
Hi iam still in matric and i dont know myb i cn be a chef under this subj...or an jenourlist
Wednesday, February 11, 2015 at 2:55pm

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. ...
Wednesday, February 11, 2015 at 1:52pm

math
(a) Use a graph of f(x) = sqrt(2x^2+9x+5)−sqrt(2x^2+2x+1) to estimate the value of lim x→∞ f(x) to one decimal place. (b)Use a table of values of f(x) to estimate the limit to four decimal places. (c)Find the exact value of the limit.
Wednesday, February 11, 2015 at 1:17pm

math
Find the horizontal and vertical asymptotes of the curve. y = 3x+6/x−7 x= y=
Wednesday, February 11, 2015 at 1:14pm

math
Find the horizontal and vertical asymptotes of the curve. y = 3x+6/x−7
Wednesday, February 11, 2015 at 1:14pm

math
Find the horizontal and vertical asymptotes of the curve. y = x^2+5/9x^2−44x−5 x= (smaller x-value) x= (larger x-value) y=
Wednesday, February 11, 2015 at 1:13pm

math
Find the horizontal and vertical asymptotes of the curve. y = 2x^2+x−1/x^2+x−42 x=? (smaller x-value) x=? (larger x-value) y=?
Wednesday, February 11, 2015 at 1:11pm

math
Find the horizontal and vertical asymptotes of the curve. y = 4+x^4/x^2−x^4 x=? (smallest x-value) x=? x=? (largest x-value) y=?
Wednesday, February 11, 2015 at 1:09pm

math
Find the horizontal and vertical asymptotes of the curve. y = 7e^x/e^x−8 x=? y=?(smaller y-value) y=?(larger y-value)
Wednesday, February 11, 2015 at 1:05pm

math
Find a formula for a function that has vertical asymptotes x = 3 and x = 6 and horizontal asymptote y = 3.
Wednesday, February 11, 2015 at 1:04pm

math
Find the horizontal and vertical asymptotes of the curve. y = 3x+6/x−7 x= y=
Wednesday, February 11, 2015 at 1:02pm

math
Find the limit. lim x→∞ sqrt(x^2+9)
Wednesday, February 11, 2015 at 1:00pm

math
Find the limit. lim x→∞ 2−e^x/2+9e^x
Wednesday, February 11, 2015 at 12:56pm

math
A sheet of paper measure 40cm¡Á20cm.A strip 4cm wide is cut from it all around find the area of strip cut out and area of remeining sheet of paper
Wednesday, February 11, 2015 at 12:53pm

math
Find the limit, if it exists. (If an answer does not exist, enter DNE.) lim x→∞ (sqrt(49x^2+x)−7x)
Wednesday, February 11, 2015 at 12:39pm

math
Find the limit lim x→−∞ sqrt(4x^6−x)/(x^3+5)
Wednesday, February 11, 2015 at 12:32pm

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 ...
Wednesday, February 11, 2015 at 12:04pm

Math
Find the amount of the tip on a 75$ bill if a 15% tip is left. A. 11.25 B. 11.20 C. 10.50 (my answer) D. 12.00
Wednesday, February 11, 2015 at 11:15am

math
Farmer fred has 200 sheep on his farm he sells 40 of them what percentage of his sheep does he have left?
Wednesday, February 11, 2015 at 9:31am

math
The shadow of an electric pole is 5 m. long when thr angle of elevation of the seen is 60 degrees. Find the length of the shadow when the angle of elevation of the seen is 45 degrees
Wednesday, February 11, 2015 at 4:55am

math
the volume of an equilateral triangular frustum is 183√3 m^3. the upper base, 9 in., above the lower base has an edge which measures 8 in. compute for the edge of the lower base.
Wednesday, February 11, 2015 at 1:53am

math(5th grade)
sally singleton's batting average is 0.375 and she has been at bat 120 times. How many times has sally hit the ball? pls help
Wednesday, February 11, 2015 at 1:45am

math
eddie made a beaded necklace for his mother. every third bead is blue. every seventh bead is green. all the remaining beads are white. there are 20 beads in all. how many beads are blue? green? white?
Wednesday, February 11, 2015 at 12:07am

math
find the cost of painting a wall having a door of dimensions 4m¡Á3m.the length and breadth of the wall are 10m and 10m respectively and the of painting is 50 per m square
Wednesday, February 11, 2015 at 12:04am

math
a wire in the shape of circle encloses the area 38.5 cm square if the wire is rebent to form a square find the area of the square
Tuesday, February 10, 2015 at 11:56pm

math
A poultry farmer vaccinated 540 of his 720 chickens against a disease. Two months later, 5% of the vaccinated and 80% of the unvaccinated chicken, contracted the disease. Calculate the probability that a chicken chosen random contracted the disease.
Tuesday, February 10, 2015 at 11:46pm

math
amelia made her vegetable garden in the shape of a square. each side is 32 feet long. amelia walked around her garden. how many feer did she walk in all?
Tuesday, February 10, 2015 at 11:41pm

math
Brown earns a dollar for every candy he sells. If he sells 30 candies, how much will he earn? Please show me the work.
Tuesday, February 10, 2015 at 11:25pm

9th Grade Math
Naulluq is cutting ice blocks from the lake for her mothers drinking water tank. The cylindrical tank has a volume of 4x^2π. Once each block has melted, it will have a volume of 3x^2. How many blocks does she need to cut so that her mothers tank will be filled when the ...
Tuesday, February 10, 2015 at 10:40pm

Math
A square with a side length of 2s has a smaller square inscribed. The vertices of the smaller square are at the midpoints of the sides of the larger square. What is the ratio of the larger square to the area of the smaller square? Express your answer in simplest form.
Tuesday, February 10, 2015 at 10:29pm

Math
describe how the value of the independent variable is related to the value of the dependent variable. Is the relationship additive or multiplicative
Tuesday, February 10, 2015 at 9:30pm

math
How do i find the perimeter of a triangle with variables? one side is 2(q^2 - 3q), the second side is q + 10 and the third side is q^2. how do i add all of these sides
Tuesday, February 10, 2015 at 9:20pm

Math
7/15 - 2/5=
Tuesday, February 10, 2015 at 8:57pm

Math
I need to see how this is answered. 1. Lauren deposited $200 into her savings account with 1% interest rate compounded annually. After 4 years her balance was $208.12. Colby deposited $200 into a savings account that earned a 2% simple interest rate for 4 years, who had the ...
Tuesday, February 10, 2015 at 8:28pm

Math
There are 12 E's among the 100 tiles in Scrabble. What is the probability of selecting all 4 E's when selecting 4 tiles? One answer key says 1/735 while another says 3/23765, but I think it is the second one.
Tuesday, February 10, 2015 at 8:06pm

math
Again, I already know this answer... It's 12 but I do not know how to come up with this answer. Plz show me step by step how to come up with the correct answer. My test is tomorrow. Thank you in advance!! A basketball player averaged 20 points a game over the course of six...
Tuesday, February 10, 2015 at 7:52pm

Math
Tanya as 8 bird posters and 12 reptile posters to display in groups. She wants each group to have the same number of posters and to have one type of animal. What is the greatest umber of posters she can put in each group?
Tuesday, February 10, 2015 at 7:47pm

Math
(x^6z^-1/3/-125y^-9z^8/3)^-1/3
Tuesday, February 10, 2015 at 7:42pm

Math
A mixture is 20% red paint, 35% yellow paint, and 45% water. If 5 quarts of red paint are added to 20 quarts of the mixture, what is the percentage of red paint in the new mixture?
Tuesday, February 10, 2015 at 7:32pm

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

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