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October 1, 2014

Homework Help: Math

Branches of Math

Recent Math Questions

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math
Meredith picked 4 times as many green peppers as red peppers. If she picked a total of 20 peppers, how many green peppers did she pick?
Monday, September 22, 2014 at 5:25pm

math
give three numbers whose product is about 9000
Monday, September 22, 2014 at 5:18pm

Math
Jason is a salesperson in the electronics department store. He is 38% short of his goal for the week. His goal is to earn %450. For each CD player he sells, he earns $57. How many CD players does he need to sell in order to meet his goal?
Monday, September 22, 2014 at 4:16pm

Math
A traditional Haida hand drum has a diameter of 14 7/8 in. and is 3 in deep. What is the minimum amount of hide used to make the drum if the hide covers only the top and lateral surfaces? PLEASE HELP!! Thank you
Monday, September 22, 2014 at 3:35pm

Math
Five added to 4 times a number is equal to 9 less than 2 times the number. 9x + 2 = 5x + 4 5x + 4 = 9x - 2 *my answer 4x - 5 = 2x + 9 4x + 5 = 2x - 9
Monday, September 22, 2014 at 2:40pm

Math
A football is thrown by a quarterback, the footballs height in feet h with respect to time in seconds T can be modeled using your quadratic function. You want to know when the football will be 7.5ft in the air because that's about the right height that your favorite ...
Monday, September 22, 2014 at 2:07pm

Math
14+2m = 4m - 16 (no multiple choice) I don't understand it 4(x +2) = 14 - 2(3 - 4x) (no multiple choice) Eight subtracted from 4 times a number is equal to 4 less than 6 times the number. (not multiple choice) my answer is 8x - 4 = 4x - 6
Monday, September 22, 2014 at 1:53pm

Math
Which of the following triangles cannot be solved using the sine law? a) angle a= 28 degrees, angle b= 75 degrees, side a= 24 cm b) side a=4 cm , side b= 11 cm c) angle a=28 degrees, angle c= 34 degrees , side b=5 cm d) angle b= 29 degrees, side b=5 cm, side c=18 cm
Monday, September 22, 2014 at 12:19pm

Math
Alice, Bob, and Charlie are three siblings with ages a, b, and c respectively. Their combine age is 18 years. Charlie is older than Bob. Alice's age is equal to twice the difference between Bob's and Charlie's ages. Bob's age is equal the average of Alice's...
Monday, September 22, 2014 at 12:02pm

Math
Find the locus of points that satisfy (a) |z+1| = |z+i| (b) Re z = |z-1| and sketch them in the complex plane.
Monday, September 22, 2014 at 12:00pm

math
Ruth buys 20 pencils for $20. some cost $4,some $0.25 and some $.50 each. at least one of each. How many of each price?
Monday, September 22, 2014 at 11:59am

math
Four monkeys ann,bob, carl and don set of to gather bananas after collecting their bananas they tired and fell a sleep Ann woke up first and ate 1/3 bob ate 1/3 carl ate 1/3 and don ate 1/4 He left 12 bananas for his 3 friends how many banana did monkeys gather all?
Monday, September 22, 2014 at 10:42am

math
A student is attempting to factor a polynomial. Sample mathematical work is shown below. Which statement best applies to the sample mathematical work? Given 3x + 6, the factors of the first term are 3 and x, and the factors of the second term are 1, 2, 3, and 6. Thus, the ...
Monday, September 22, 2014 at 9:19am

Math
Bobby has some marbles.one-third of them are blue.one-half of them are red and the rest are green.if he has 7 green marbles, how many marbles does have altogether?
Monday, September 22, 2014 at 7:34am

Trigonometry (Math)
From a point 5m. above the water surface, the angle of elevation of the top of a certain tree is 40°10' while the angle of depression to the foot of the tree is 63°20'. Find the height of the tree and the distance from the point of observation. -Complete ...
Monday, September 22, 2014 at 7:24am

Math
For y=3 +7 cos 5 (theta - 28 degrees) Find y when theta=321 degrees
Monday, September 22, 2014 at 7:09am

Math
Show that a triangle with sides 3,4,5 inches long is a right triangle. Find the measure of the larger acute angle
Monday, September 22, 2014 at 6:50am

Math
Show that a triangle with sides 3,4,5 inches long is a right triangle. Find the measure of the larger acute angle
Monday, September 22, 2014 at 6:50am

math
Find the pressure exerted by a waterbed with dimensions of 2 m x 2 m which is 30 cm thick. (hint: use density of water)
Monday, September 22, 2014 at 6:29am

math
an apple and a pear cost 25 pesos,a pear and a banana cost 19 pesos and apple and banana cost 16.how much i spend if i buys 1 apple,1 pear and 1 banana?
Monday, September 22, 2014 at 6:18am

English
What are you going to do for your home this weekend? 1. I am going to clean the windows this weekend. 2. I am going to clean the floor with a mop. 3. I am going to mop the floor. 4. I am going to vacuum the living room. 5. I am going to clean the living room with a vacuum ...
Monday, September 22, 2014 at 5:54am

math
Yasmin wants to serve 150ml of juice to each of 15 guests. How many 500ml cartons of juice she buy? How much juice will she be left after serving her guests?
Monday, September 22, 2014 at 5:45am

Math
What is a1 if a33 is equal to -2p and a74 = 26p? Our topic is arithmetic series and sequence. Thanks.
Monday, September 22, 2014 at 4:01am

Math Help Please
ABC Company is about 1614 feet tall. How long would it take an object falling freely from the top to reach the ground? Use a = 16t^2 I would appreciate any help. ^_^
Monday, September 22, 2014 at 12:56am

Math
A rectangular field is to be subdivided in 6 equal fields. There is 1200 feet of fencing available. Find the dimensions of the field that maximizes the total area. (List the longer side first) Width = feet Length = feet What is the maximum area ? Area =
Monday, September 22, 2014 at 12:50am

math
Benjamin and Bob are marathon runners on a run from landmarks P to Q. Benjamin runs half the way and walks the other half. Bob runs half the time, and walks the other half. The two run at the same speed and walk at the same speed. Who finishes first?
Monday, September 22, 2014 at 12:43am

Math
A ball is thrown up at the edge of a 550 foot cliff. The ball is thrown up with an initial velocity of 87 feet per second. Its height measured in feet is given in terms of time t, measured in seconds by the equation h = -16 t^2 + 87 t + 550 a. How high will the ball go and how...
Monday, September 22, 2014 at 12:41am

Math
Find the vertex of the parabola y = f(x)= x^2 + 8 x - 11 x coordinate = y coordinate = Graph this function and estimate the x intercepts to the nearest tenth. Give your answers in order. x intercept one = x intercept two =
Monday, September 22, 2014 at 12:23am

math
The ratio of boys to girls is 3 to 7. If there are 200 more girls than boys, how many boys are there? Use a tape diagram to solve.
Monday, September 22, 2014 at 12:18am

Math
3^2=12/(6-3)*8
Sunday, September 21, 2014 at 11:56pm

math
Nala and her cousin agreed that they would each mow one-half of the lawn. The lawn is a 25' by 45' rectangle. The lawn mower cuts a path two feet wide. Nala starts at one corner and mows a path completely around the outside, and then continues to mow the outermost ...
Sunday, September 21, 2014 at 11:01pm

math
What is the value of the expression?
Sunday, September 21, 2014 at 10:56pm

math
We did this qs in class so we change the equation into the vertex form Here is the solution. Y=3x^2+30x+41 y=3(x^2+10x)+41 Y=(x^2+10x+25-25)+41 Y=3(x+5)^2-34 I understand everything expected I don't know how we get -34, can you explain please?
Sunday, September 21, 2014 at 10:31pm

math
350 student in the school, 3 boys for every 2 girls how boys are there?
Sunday, September 21, 2014 at 9:55pm

Math
Mike had Some money in his wallet. Hè went to the mall and spent $8 On a game, $14 On a gift for his Dad, and $7 On lunch. Then his mom gave him $10. Hè bought a book. How much idd Mike originally have in his wallet?
Sunday, September 21, 2014 at 9:22pm

Math
the length of a living room floor in a scale drawing is 8 inches the actual length is 20 feet what is the scale
Sunday, September 21, 2014 at 9:03pm

math
Ranch home is 2100 sq ft (70 x 30) Assume the climate yields 30in of rainfall per year. Baths, showers, faucets use 40% of this water, of which 80% is recycled to the indoor garden (50 ft x 20 ft) How much water in INCHES will the 50ft x 20 ft indoor garden receive per year ...
Sunday, September 21, 2014 at 8:55pm

math
what fraction when added to 1 over 8 results in a sum of 1 over 4
Sunday, September 21, 2014 at 8:51pm

math
23 over 3 to mixed number
Sunday, September 21, 2014 at 8:37pm

math
How would I go about dividing. -20 divided by (-2 1/2)
Sunday, September 21, 2014 at 8:09pm

Math
14(-1/2)
Sunday, September 21, 2014 at 8:07pm

math
order from least to greater 4 1 over 2, 19 over 4, 37 over 8, 4 3 over 16
Sunday, September 21, 2014 at 8:00pm

math
which number is between 32 over 9 and 3 8 over 9 a. 37 over 9 b. 3 7 over 9 c. 3 5 over 9 d. 31 over 9
Sunday, September 21, 2014 at 7:52pm

math
write the number as a mixed number 11 over 2
Sunday, September 21, 2014 at 7:48pm

Math
Place parentheses to make this statement true: 6-6/6x6+6=0
Sunday, September 21, 2014 at 7:48pm

Math-HElP PLEASE??
On a certain hot summer's day, 300 people used the public swimming pool. The daily prices are $1.75 for children and $2.25 for adults. The recipients for admissions totaled $613.50. How many children and how many adults swam at the public pool that day? There were ___ ...
Sunday, September 21, 2014 at 6:35pm

Math
A three digit number has the same hundreds, tens and units digit. The sum of the prime factors of the number is 47. What is the 3 digit number?
Sunday, September 21, 2014 at 6:15pm

math
Find the rectangle with the maximum area inside the ellipse x^2/16 + y^2/4=1. Thanks.
Sunday, September 21, 2014 at 4:50pm

Math.
T -shirts for first prize winners in the games cost $23.40. This was $8.77 less than their cost one year ago. What was the cost of the T-shirts one year ago?
Sunday, September 21, 2014 at 3:36pm

math
Milk was purchased for $48.00. Due to the price increases, this was 2.3 times the cost of milk two years ago. What was the cost of milk two years ago?
Sunday, September 21, 2014 at 3:34pm

Math
The school has 20 rooms. An average of 27 students from each room went to the barbeque. What was the total number of students at the barbeque?
Sunday, September 21, 2014 at 3:33pm

Math
200 oranges were purchased for $53.40. How much would 100 oranges have cost?
Sunday, September 21, 2014 at 3:31pm

Math
Liam has 9/10 gallon of paint for painting the birdhouses he sells at the craft fair. Each birdhouse requires 1/20 gallon of paint. How many birdhouses can Liam paint?
Sunday, September 21, 2014 at 3:18pm

Math
Sorry again but I am terrible at math and I need help help writing this prob into an equation: 50 pounds of potato salad cost $39.50 and 50 pounds of bean salad cost $23.50. What was the difference in costs of the salads?
Sunday, September 21, 2014 at 3:13pm

Math
How many tenths are there in 4/5?
Sunday, September 21, 2014 at 3:12pm

Math
Solve the following triangle, rounding side lengths to the nearest tenth of a unit and angle measures to the nearest degree. angle a = 153 degrees, b= 5, a=10.5
Sunday, September 21, 2014 at 3:06pm

math
I need help writing an equation for this problem: for the school barbeque, room 107 bought 50 pounds of hot dogs for $69.50. How much did the hot dogs cost per pound?
Sunday, September 21, 2014 at 3:05pm

Math
A pitcher contains 2/3 of lemonade. If an equal amount of lemonade is poured into 6 glasses, how much lemonade will each glass contain?
Sunday, September 21, 2014 at 3:04pm

math
Each of their six water bottles holds 8 gallons. How many gallons of water did they take?
Sunday, September 21, 2014 at 2:50pm

math
I am number less than 10. When I am divided by 2, half of that number is also 2. what number am I?
Sunday, September 21, 2014 at 2:33pm

math
Q: Suppose that for all xE(0,5), f(x) is between 1+x and 3+sin((pi)(x)). Find lim x->2 f(x). Is this question related to the intermediate value theorem? It is confusing me, can anyone help out? I am not certain of what xE(0,5) is defining, is that a set of x values or am I ...
Sunday, September 21, 2014 at 2:25pm

math
two phone companies offer discount rates to students. the first company wants $9.95 per month plus $.10 per minute for long distance calls. The second company wants $12.95 per month plus $.08 per minute for long distance calls. What is the equation?
Sunday, September 21, 2014 at 2:25pm

math
A certain number between 10 and 100 is 8 times the sum of its digits, and if 45 be subtracted from it the digits will be reversed. Find the number.
Sunday, September 21, 2014 at 12:02pm

math
the ratio of the areas of two squares is 9:4. the ratio of their perimeters is (please explain in detail)
Sunday, September 21, 2014 at 11:23am

math
Two surveyors with two-way radios leave the same point at 9:00 A.M., one walking due south at 3 mi/hr and the other due west at 4 mi/hr. How long can they communicate with one another if each radio has a maximum range of 7 miles?
Sunday, September 21, 2014 at 10:50am

Discrete math
please help I'm completely lost Is the following connected graph a tree please explain There are 4 vertices, two with degree 1, one with degree 2, and the degree of the fourth vertex is not known.
Sunday, September 21, 2014 at 9:42am

Math Help!!
Two phone companies offer discount rates to students. The first company wants $9.95 per month plus $.10 per minute for long distance calls. The second company wants $12.95 per month plus $.08 per minute for long distance calls. Write a linear equation describing the total cost...
Sunday, September 21, 2014 at 9:29am

math
As part of her training, an athlete runs 11 kilometers each day. How many kilometers does she run in 24 days?
Sunday, September 21, 2014 at 9:12am

Math
The college president asks the statistics teacher to estimate the average age of the students at their college. How large a sample is necessary? The statistics teacher decides the estimate should be accurate within half year and be 92% confident. From a previous study, the ...
Sunday, September 21, 2014 at 5:21am

math
Fred has 15 cows John has twice as many cows as Fred had when Fred had as many cows as John has now how many cows has John?
Sunday, September 21, 2014 at 12:02am

Math (Proving of Inequalities)
Prove: if a>0 and b>0, and a^2>b^2, then a>b.
Saturday, September 20, 2014 at 8:52pm

mathematics of investment
step by step solving plsss im very law in math so plss to solve step by step thanks.On August 1,1990, Mr.Talamos borrows 9,500 pesos and agrees to pay the compounded amont on the day he pays the debt. If interest is at the rate of 5 1/2% compounded quarterly, how much must Mr...
Saturday, September 20, 2014 at 8:41pm

5th grade Math
A recipe call for the following ingredients: 3c flour 1/2t salt 3/4c sugar 4c fruit 2T butter To make 2/3 of the recipe, how much of each ingredient should you use. Question, should I multiply of divide by 2/3?
Saturday, September 20, 2014 at 8:04pm

Math
Marco is 350 m due east of the centre of the park. His friend Ray is 350 m due south of the centre of the park. Which is the correct expression for the exact distance between the two boys?
Saturday, September 20, 2014 at 7:53pm

math
give one example of a time after 1:00 and before 2:00 when the hands of the clock form an obtuse angle
Saturday, September 20, 2014 at 6:07pm

math
tina is more than 20 yrs old but less than 60. you can count by 7s to reach her age. next year you count by 5s to reach her age how old is she?
Saturday, September 20, 2014 at 5:59pm

math
write and solve a word problem that can be modeled by the difference -4 - 10. My dog lost 4 ounces this year And 10 ounces last year. What is the Difference in weight loss? Or what is total weight lost? I am not sure I'm doing this right. The answer I got to the original ...
Saturday, September 20, 2014 at 5:57pm

math
George makes a $1000 down payment for a car and then pays $325 per month. Elaine makes a $2500 down payment for a car and then pays $325 per month. Is there any number of months after which both George and Elaine will have paid the same amount? Explain.
Saturday, September 20, 2014 at 5:14pm

math
If there are 26 pizza toppings to choose for a pizza including 0 how many combinations of pizzas are there? My answer was to say by taking 27 to the power of 2. If there are 27 elements wouldn't you just do it that way?
Saturday, September 20, 2014 at 4:24pm

math
5hexponent2/5 =3645/5 find the value of h
Saturday, September 20, 2014 at 3:26pm

Math
Two phone companies offer discount rates to students. The first company wants $9.95 per month plus $.10 per minute for long distance calls. The second company wants $12.95 per month plus $.08 per minute for long distance calls. Write a linear equation describing the total cost...
Saturday, September 20, 2014 at 2:27pm

Math
With s(t) measured in feet and t in seconds, the equation s(t)= -16t^2 + 32t expresses the height of a ball above the ground after t seconds if it were thrown upward with a velocity of 32 ft/sec. (a) What is the maximum height of the ball? (b) After how many seconds will the ...
Saturday, September 20, 2014 at 10:48am

math
Write down all the odd numbers that are greater than-8 and less than 7.Please answer it i'll be appreciate to the one who will answer it back.THANK YOU!
Saturday, September 20, 2014 at 7:16am

Math
During one year in a school, 5/8 of the students had measles, 1/2 had chicken pox and 1/8 had niether. What fraction of the school had both measles and chicken pox
Saturday, September 20, 2014 at 5:14am

Math
After spending 2/5 of her money on food and 1/6 on cosmetics a woman is left with with 13000. How much did she have originally
Saturday, September 20, 2014 at 4:36am

Math (Equation of a circle)
Find an equation of the circle with its center at (3,2) that is tangent to the positive x-axis.
Saturday, September 20, 2014 at 3:08am

Math
Given that a^33 = -2p; a^74 = 26p, what is a^1?
Saturday, September 20, 2014 at 1:21am

math
A pizza box with a square base is to be made from a rectangular sheet of cardboard by cutting six 1-inch squares from the corners and the middle sections and folding up the sides (see the figure). If the area of the base is to be 400 in^2, what size piece of cardboard should ...
Friday, September 19, 2014 at 11:44pm

math
I am a 3-digit number.My tens is 2 times my hundreds my ones is the same as the sum of my tens and hundreds.What number can I be?
Friday, September 19, 2014 at 11:08pm

Math
Evaluate the function and simplify: f(x)=4x^2+3x-3; f(x-1)
Friday, September 19, 2014 at 9:52pm

Math - 7th grade
How many times as heavy is the Golden Eagle of 13 9/10 llb as the Red-Tailed Hawk of 3 1/2? I never know if I have to divide or multiply. How can I tell with this problem? I have 139/10 / 7/2 then 139/10 x 2/7 = 278/70 if I divide that it will give me 3.9714 how do I get my ...
Friday, September 19, 2014 at 9:20pm

Math
You have $60.00 in your wallet and want to buy some new CDs. If the CDs are $11.00 each, what number of CDs, x, can you buy? Write and solve an inequality. Then explain your answer. My answer $60.00/$11.00=x CDs 60/11=5.45 X=5 You can buy 5 CDs with $60.00 at $11.00 each. Is ...
Friday, September 19, 2014 at 8:20pm

math
Graph the inequality:x</=-2 A. <-6,-4,-2,0,2,4,6> The dot is on the -2 going to 6 and it's a filled dot. B. <-6,-4,-2,0,2,4,6> The dot is on the -2 going to -6 and its a filled dot. C. <-6,-4,-2,0,2,4,6> The dot is on the -2 going to -6 it's a ...
Friday, September 19, 2014 at 7:55pm

Math
Which of the following equations has an infinite number of solutions? A. 3x-3=-4x B. 2y+4-y=16 C. 7x+5=4x+5+3x D. 6y-2=2(y-1) Is the answer A?
Friday, September 19, 2014 at 7:53pm

math
Bananas are $0.59/pound. What is the constant of proportionality?
Friday, September 19, 2014 at 7:27pm

Math
Find the X & Y intercepts of this equation: y=x^2-2x-3
Friday, September 19, 2014 at 7:07pm

Business math
Jerrika has $12,400 invested at a simple interest rate of 4.2%. Patrick earns only 3.85% on his investments. How much would Patrick need to invest in order to earn the same amount of interest per month as Jerrika?
Friday, September 19, 2014 at 6:58pm

math
How many times as heavy is the Golden Eagle of 13 9/10 llb as the Red-Tailed Hawk of 3 1/2? I never know if I have to divide or multiply. How can I tell with this problem?
Friday, September 19, 2014 at 6:47pm

Math Help
Evaluate the function and simplify: f(x)=4x^2+3x-3; f(x-1)
Friday, September 19, 2014 at 6:41pm

Math
Check answer PLEASE!! Kevin wants to calculate the value of the expression below. -17 + 3 Which shows an equivalent way kevin could write this expression? (A.) -(17 + 3) B. -(17 - 3) C. (-3 + 17) D. (-3 - 17) Please help as soon as possible!! I have no one to help me and i don...
Friday, September 19, 2014 at 6:24pm

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