Monday
October 20, 2014

Homework Help: Math

Branches of Math

Recent Math Questions

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Math
How to figure interst of 2.9 percent for 9 months to end up with 3262.50.
Monday, October 20, 2014 at 5:31pm

Math
You have 10 yards of fabric. One pillow case requires 1 1/4 yards of fabric. How many pillow cases can you make?
Monday, October 20, 2014 at 5:06pm

math
what is the expanded form for 408,032,009
Monday, October 20, 2014 at 4:55pm

Math
Javier scored 30 goals in 15 soccer games. Using the unit rate, how many goals will he score in 20 games?
Monday, October 20, 2014 at 4:42pm

Math
There are 36 members of a sculpture class. 12 of the class members are men. What is the ratio of women to men in the class? Be sure to write your ratio in simplest form.
Monday, October 20, 2014 at 4:40pm

Math
If z^2 = x^2 + y^2 with z>0, dx/dt=3, and dy/dt=6, find dz/dt when x=4 and y=3. Answer: \displaystyle \frac{dz}{dt} =
Monday, October 20, 2014 at 4:19pm

Math
Mandy got 22 questions correct on her test. Her grade was 80%. How many questions were on the test.
Monday, October 20, 2014 at 3:53pm

math
Find the critical numbers for f=5+10x-x^{2} in the interval [-3,3].Also find the minimum and maximum.
Monday, October 20, 2014 at 3:24pm

math
As a part of a unit on weather students recorded the outroor temperature at 8:30 AM what was the difference between the weeks highest and lowest morning temperatures
Monday, October 20, 2014 at 3:10pm

math
E-Z Stop Fast Gas sold $10,957 worth of gasoline yesterday. Regular sold for $2.30 a gallon, and premium sold for $2.55 a gallon. If the station sold 420 more gallons of regular than of premium: a. How many gallons of each type of gasoline were sold? Do not enter units in your...
Monday, October 20, 2014 at 2:29pm

Math
Find cos2A when cosA = -3/5 and π/2<A<π. A) -24/25 B) -7/25 C) 7/24 D) 24/7
Monday, October 20, 2014 at 11:08am

Math
18) Find all numbers c that satisfy the conclusion of the Mean Value Theorem for the following function and interval. Enter the values in increasing order. f(x)=2x6x+12,[1,4]
Monday, October 20, 2014 at 11:01am

Math
17) Consider the function f(x)=3x3−3x2+4x+2 Find the average slope of this function on the interval (−3,5). By the Mean Value Theorem, we know there exists a c in the open interval (−3,5) such that f′(c) is equal to this mean slope. Find the two values ...
Monday, October 20, 2014 at 11:01am

Math
16) Consider the function f(x)=2x3−6x2−90x+5 on the interval [−6,7]. Find the average or mean slope of the function on this interval. By the Mean Value Theorem, we know there exists at least one c in the open interval (−6,7) such that f′(c) is ...
Monday, October 20, 2014 at 11:00am

business math
The sweet candy shop buys 600 pounds of chocolate covered strawberries at $5.59 per pound. If a 10% spoilage rate is anticipated, at what price per pound should the strawberries be sold in order achieve a 60% markup based on cost?
Monday, October 20, 2014 at 10:56am

Math
WHat dose factors mean
Monday, October 20, 2014 at 10:32am

Math
If the first dice yields an even number, what is the probability that the sum of the two dices will be equal to 12? 1st Die P(even) = 3/6 = 0.50 P(6|even) = 1/3 = 0.333 2nd Die P(6) = 1/6 = .1667 So P(12) = 0.33*0.1667 ?
Monday, October 20, 2014 at 9:51am

Math
The Basketball Birthday Batter Package at a Minor league ballpark costs $192. The Package includes tickets, drinks, and cake for A group of 16 children. Write an equation To find the cost per child. 16c = $192
Monday, October 20, 2014 at 8:56am

math
the sides of a quadrilateral are in the ratio 1:3:5:7. if the perimeter of the quadrilateral is 64cm,what is the length of the second longest side/
Monday, October 20, 2014 at 8:19am

Math
How to prove this question with using a LS=RS-style Proof? csc^2(x)cos^2(x) = csc^2(x)-1
Monday, October 20, 2014 at 4:36am

math
a cyclist bikes at a speed of 6 m/s after rolling down a hill in 3 s. Of the cyclist has a constant acceleration of 2 m/s during the descent, what was the velocity of the cyclist at the top of the hill?
Monday, October 20, 2014 at 12:12am

Math
an ice cream cone contains one spherical scoop of ice cream,the diameter of the scoop of ice cream is the same as the diameter of the cone. If the ice cream melts, will the cone overflow? Justify your answer. 4cm spherical scoop of ice cream diameter of cone- 7cm
Sunday, October 19, 2014 at 9:38pm

Math
Examine the given right angle triangle. Are the side lengths given in the diagram possible? Justify your answer. lengths: 2.4m, 9.2m, 4.7m
Sunday, October 19, 2014 at 9:14pm

math
given that theta=tan^-1(4/3) find sin theta
Sunday, October 19, 2014 at 8:56pm

Math
Find the first 3 common multiples for 6,7,8.
Sunday, October 19, 2014 at 8:41pm

Math/Science
Three bullets are fired simultaneously by three guns aimed toward the center of a circle where the bullets mash into a stationary lump. The angle between the guns is 120°. Two of the bullets have a mass of 9.30 10-3 kg and are fired with a speed of 440 m/s. The third ...
Sunday, October 19, 2014 at 8:40pm

Math
Bill is painting his basement floor. If one can of paint will cover 4.5m squared, how many cans of paint will he need? Measurements: 13.5m, 1.5m, 6m, 18m, 13.5m,1.5m show work !It is a rectangle layout!
Sunday, October 19, 2014 at 8:40pm

Math
Bill is painting his basement floor. If one can of paint will cover 4.5m squared, how many cans of paint will he need? Measurements: 13.5m, 1.5m, 6m, 18m, 13.5m,1.5m show work
Sunday, October 19, 2014 at 8:34pm

Math
All rational functions can be expressed as f(x) = p(x)/q(x), where p and q are __________ functions and q(x) ≠ 0. A. horizontal asymptotes B. polynomial C. vertical asymptotes D. slant asymptotes Is the answer D. vertical asymptotes?
Sunday, October 19, 2014 at 8:19pm

math
Find the surface area of a right rectangular pyramid with a base 10 in by 8 in and a height of 10 in. (Answer to the nearest square inch)
Sunday, October 19, 2014 at 8:00pm

math
A hairstlist schedules 1/4 hour to trim a customers hair and 1/6 hour to style. The hairstylist plans to work 3 1/3 hours each day. How many appointments can she schedule?
Sunday, October 19, 2014 at 7:47pm

math
A jade necklace is made up of 100 spherical jade beads. Each bead has a diameter of 7 mm. What is the total amount of jade, in cubic millimetres?
Sunday, October 19, 2014 at 7:22pm

math
a post is put every 6 feet along a rectangular fence that is 42 feet long and 36 feet wide. how many posts are needed?
Sunday, October 19, 2014 at 7:16pm

math
A large greenhouse is built in the shape of a right square pyramid with base lengths of 26 m, and a slant height of 35.4 m. How much glass, to the nearest square metre, is needed for the greenhouse? (Lateral area only)
Sunday, October 19, 2014 at 6:59pm

Math
The volume of a cone is 8.1 cubic yards. The cone has a height of 2.4 yd. What is the diameter of the cone to the nearest tenth of a yard?
Sunday, October 19, 2014 at 6:37pm

Math
If the first dice yields an even number, what is the probability that the sum of the two dices will be equal to 12? 1st Die P(even) = 3/6 = 0.50 P(6|even) = 1/3 = 0.333 2nd Die P(6) = 1/6 = .1667 So P(12) = 0.33*0.1667 ?
Sunday, October 19, 2014 at 6:26pm

math
At which grade level is it most appropriate for children to group by more than one attribute?
Sunday, October 19, 2014 at 6:14pm

math
Downtown Mathville is laid out as a square grid of 9 North-South streets and 9 East-West streets (See diagram). Your apartment is located at the Southwest corner of downtown Mathville. (See point T.) Your math classroom is located in a building that is 6 blocks East and five ...
Sunday, October 19, 2014 at 5:38pm

Math
Giselle has a block of wood that measures 14 cm by 12 cm by 10 cm. She is making a wooden ball in tech class. a) What percent of the wood is wasted? b) What assumptions are you making?
Sunday, October 19, 2014 at 5:11pm

Math
Speed sling takes place on a course that is 2/3 lim le long .how many feet long is the course
Sunday, October 19, 2014 at 4:42pm

Math
The centre of a doughnut is removed and formed to make a sphere of dough with diameter 2.5 cm. A batch of these spheres is to be covered in a sugar glaze. There is enough glaze to cover an area of 4710 cm^2. How many spheres can be glazed?
Sunday, October 19, 2014 at 4:31pm

Math
For f(x) = 2sinx + (sinx)^3 + tanx find f'(pi/3). Ok, so what I tried was... f'(x) = 2cosx + cosx(3(sinx)^2) + (sinx/cosx) pi/3 = (1/2, sqrt(3)/2) therefore, 2(1/2) + 1/2(3(sqrt(3)/2)(sqrt(3)/2) + (sqrt(3)/2 (2/1)) 1 + .5(3 (3/4)) + sqrt(3) 1 + .5(9/4) + sqrt(3) = 4....
Sunday, October 19, 2014 at 4:01pm

math
use your fraction strips to locate and label these numbers on a number line: 0, 3/4, and 7/8. Then use your fraction strip to measure the distance between 3/4 and 7/8.
Sunday, October 19, 2014 at 3:22pm

math
How to solve for t 2465=204.8t+4.6t^2
Sunday, October 19, 2014 at 3:06pm

Math
Samantha made 9800 mL of fruit punch for a party, and she served the fruit punch divided equally in 5 pitchers. Her guests drank 2 pitchers of fruit punch. How many liters of fruit punch did Samantha have left over?
Sunday, October 19, 2014 at 1:05pm

Math
If the length of a rectangle is increased by 10% and the width of the rectangle is decreased by 10%, is the area changed? If so, does it increase or decrease and by what percent? Explain your answer.
Sunday, October 19, 2014 at 12:55pm

Math
A glass of skim milk supplies 0.1 mg of iron and 8.2 g of protein. A quarter pound of lean red meat provides 3.75 mg of iron and 21 g of protein. If a person on a special diet is to have 7.36 mg of iron and 73 g of protein, how many glasses of skim milk and how many quarter-...
Sunday, October 19, 2014 at 12:06pm

math
if P(5 , r) = 60 then the value of r is
Sunday, October 19, 2014 at 12:02pm

Math
Find all values of p such that 2(x+4)(x-2p) has a minimum value of -18? I know x=-4 but I do not know that helps us. Please explain in steps! The temperature of a point (x,y) in the plane is given by the expression x^2-y^2-4x+2y. What is the temperature of the coldest point on...
Sunday, October 19, 2014 at 10:10am

math
Question 2 of 20 5.0 Points In the equation x = 6 - 2y, x and y are: A. directly related. B. inversely related. C. both dependent variables. D. not related. Reset Selection Mark for Review What's This? Question 3 of 20 5.0 Points John puts $780 into his checking and ...
Sunday, October 19, 2014 at 9:54am

tech math
how to solve one pulley is 7 cm larger in diameter than a second pulley. the larger pulley turns at 80 rpm, and the smaller pulley turns at 136 rpm. what is the diameter of each pulley
Sunday, October 19, 2014 at 5:27am

Business Math
Jeanna wants to buy a new boat for her family. She has two payment options. The first option is to pay a cash payment of $7,200. The second option is to finance the boat with a three year installment loan. The loan requires a 10% down payment and 36 equal monthly payments of $...
Sunday, October 19, 2014 at 4:43am

Math
1/why can 0 be divided by any number , but any number cann't be divided by 0? Answer: I don't know.. 2/ Mr. Cruz is planning to give each of his students 2 pencils for their math test . Pencils come in packs of 8 . If he has 32 students ,can he open enough packs to ...
Sunday, October 19, 2014 at 12:50am

math
amy made bags filled with M&M's and skittles. She used 48 M&M's and 30 skittles. she used the same number of each candy in every bag. what is the maximum number of bags she could make?
Saturday, October 18, 2014 at 10:18pm

Math
Tina is trying to choose finger food for her party. She is choosing between 5 types of nuts, 5 types of crackers, and 4 types of cheese. If Tina chooses one of each,how many combinations does she have to choose from?
Saturday, October 18, 2014 at 8:54pm

math
Point e is located at (-2,2) and point f is located at (4,-6). Whats the distamce between points e amd f?
Saturday, October 18, 2014 at 8:53pm

Math
Find the number 4 three times in the table . Write multiplication sentences and division sentences for each 4 . Answer; 1/1*4=4 2/ 2*2=4 3/4*1=4 1/ 4divide 1=4 2/ 4 divide 2=2 3/ 4 divide 1=4 Q2/Name five numbers that are found only once in the table. Answer: 1*1 ,2*2 , 3*3 , ...
Saturday, October 18, 2014 at 8:42pm

Math
A biologist has a 36% solution and a 14% solution of the same plant nutrient. How many cubic centimeters (cc) of each solution should be mixed to obtain a 25 cc of a 25% solution? I been looking at this for 2 hours please help
Saturday, October 18, 2014 at 7:19pm

math
it is a 3 digit number all the digits are different the first and second digits are multiple of 3 the first digit is greater than the second digit. the sum of the first two digits is 7 more that the third digit the number is not a multiple of 5 the third digit is greater than 3
Saturday, October 18, 2014 at 6:57pm

Math
A glass of skim milk supplies 0.1 mg of iron and 8.2 g of protein. A quarter pound of lean red meat provides 3.75 mg of iron and 21 g of protein. If a person on a special diet is to have 7.36 mg of iron and 73 g of protein, how many glasses of skim milk and how many quarter-...
Saturday, October 18, 2014 at 6:22pm

Math
A women has $500,000 invested in two rental properties. One yields an annual return of 14% on her investment, and the other returns 10% per year on her investment. Her total annual return from the two investments is $59,000. How much is invested at each return?
Saturday, October 18, 2014 at 5:48pm

Math
A bank lent $260,000 to a company for development of two products. If the loan for product A was for $77,000 more than that for product B, how much was lent for each product?
Saturday, October 18, 2014 at 5:47pm

Math
Several cows from a Caribou Herd took 4 days longer to travel 70km to Forde Lake, than it took them to travel 60km north beyond forde lake.They averaged 5km/h less before Forde lake because the foraging was better. What was their average speed for the part beyond forde lake?
Saturday, October 18, 2014 at 5:46pm

math
I'm wonder if im correct? Two physics students built a model rocket for a class project. Once the rocket is launched, its height in feet, h(t), can be found using the height function h(t) = -16t² + 96t where t represents time in seconds my work: 0=-16t^2+96t = -16t(t-...
Saturday, October 18, 2014 at 5:17pm

Math
Several cows from a Caribou Herd took 4 days longer to travel 70km to Forde Lake, than it took them to travel 60km north beyond forde lake.They averaged 5km/h less before Forde lake because the foraging was better. What was their average speed for the part beyond forde lake? ...
Saturday, October 18, 2014 at 4:26pm

math
Mike fills his car's tank up with 20 gallons of regular gas at $2.09 per gallon. His car averages 25 miles per gallon. How many miles can Mike drive on a full tank of gas?
Saturday, October 18, 2014 at 4:22pm

math
the number 34,459,425 is the product of several consecutive positive odd numbers. what is the greatest of these numbers?
Saturday, October 18, 2014 at 3:59pm

Math
What does the word benchmark percent means?
Saturday, October 18, 2014 at 3:41pm

Math Algebra
The coordinates of quadrilateral VXY Are given below. Find the coordinates of its image after a dilation with the given scale factor V(6, 2), W(-2, 4), X(-3, -2), Y(3, -5) scale factor of 2 This question is confusing me and is worth 3 points please help :)
Saturday, October 18, 2014 at 2:13pm

Math
Which of these two sequences form a geometric sequence: 2x, 4x-2, 6x-4, ..... OR x+1, 2x+2, 5x+1, .....? Find the value/s of x and what is the sequenced formed? My answer is neither is a GP since they don't have a common ratio. If this is the case, is there still any way ...
Saturday, October 18, 2014 at 2:25am

Math
A man is 1.9m tall and he stands 2.4m from the lampost , which is 3.2m high. Find the lenght of the man's shadow.
Saturday, October 18, 2014 at 1:06am

SAVE ME ( MATH)
function p(t) has a domain of 1 less than or equal to t less than or equal to 12 range of -40 < p less than or equal to 160 Find the domain and range for. Enter the exact answers A) P(1/4t+4) B) -1/10p(2t)+46
Friday, October 17, 2014 at 8:15pm

MATH HELP
Domain l(x) is -12 less than or equal to x less than equal to 12 and it's range is 0 less than or equal to l(x) less than equal to 3 (b) What are the domain and range of l(1/5x) Enter the exact answer Domain Range Answer this Q
Friday, October 17, 2014 at 8:12pm

MATH HELP PLEASE
Which statment is false? A. The number zero is a rational number. B. Some irrational numbers are also rational numbers. C. Every irrational number is a real number D. Every integer is a rational number Is the answer C?
Friday, October 17, 2014 at 7:11pm

Math
1. Find the sum of the first five terms of the sequence 2/3, 2, 6, 18, ..... My answer is 242. Am I right? 2. Which of these two sequences form a geometric sequence: 2x, 4x-2, 6x-4, ..... OR x+1, 2x+2, 5x+1, .....? Find the value/s of x and what is the sequenced formed? I ...
Friday, October 17, 2014 at 6:48pm

Math
1. Find the sum of the sequence: 32, -16, 8, -4, 2, .... My answer is 64/3. Am I correct?
Friday, October 17, 2014 at 6:44pm

MATH HELP PLEASE
Which of these numbers can be classified as both real and irrational? a. 5.85 b. 63.4 c. square root 21 d. square root 36 Is the answer D?
Friday, October 17, 2014 at 6:37pm

Math
[R] = [4/5 -3/5] and [S] = [-3/5 4/5] [-3/5 -4/5] and [4/5 3/5] are reflection matrices. Calculate [R·S] and verify that it can be identified as the matrix of rotation. Determine the angle of the rotation.
Friday, October 17, 2014 at 6:10pm

Math
Find the limit as h approaches 0 for ln(1+h)/h
Friday, October 17, 2014 at 5:38pm

math
Which of these numbers can be classified as both real and irrational? a. 5.85 b. 63.4 c. square root 21 d. square root 36 Is the answer D?
Friday, October 17, 2014 at 5:20pm

Math
Which statement is false? A. The number zero is a rational number. B. Some irrational are also rational numbers. C. Every irrational number is a real number. D. Every integer is a rational number Is the answer C?
Friday, October 17, 2014 at 5:13pm

Math
Which of these numbers is classified as a rational number? A. Square root 17 B. Square root 23 C. Square root 9 D. Square root 2 Is the answer C? Thanks
Friday, October 17, 2014 at 5:09pm

Math
Solve P=P(base 0)e^kt Solve for t? I have no idea how to solve this
Friday, October 17, 2014 at 5:07pm

Math
Which is an integer? A. 23 B. 1/4 C. Square root 27 D. 3.402538 Is the answer A? Thanks
Friday, October 17, 2014 at 5:03pm

MATH HELP PLEASE
Which of these numbers can be classified as both real and irrational? a. 5.85 b. 63.4 c. square root 21 d. square root 36 Is the answer D?
Friday, October 17, 2014 at 4:53pm

Math
1.What is the smallest possible value of 2x^4+(8/x^4) over all real nonzero values of x? To find the minimum value you have to factor it, but I am not sure how to factor this. 2.What is the maximum value of c such that the graph of the parabola y=1/3x^2 has at most one point ...
Friday, October 17, 2014 at 3:37pm

Math
1. Find all values of p such that 2(x+4)(x-2p) has a minimum value of -18. I know that y is the minimum value,I know x is -4. But, I am not sure how to find p. 2.The temperature of a point (x,y) in the plane is given by the expression x^2+ y^2 - 4x + 2y.What is the temperature...
Friday, October 17, 2014 at 3:29pm

Math
I just wanted to double check that I am correct. 1.Find the zeros for the function: f(x)= 4(x-3)(x+2)(x-4)^2 Zeros are: 3,-2, 4(multiplicity 2) 2.Find the zeros for the function: f(x)= x^3-9x Zeros are: 0, 3, -3
Friday, October 17, 2014 at 3:06pm

Math
Hi, I need help with figuring out how I calculated this question because my math teacher is asking "But my question is how do you get √2/2 How did you come up with that calculation?" Here's the question and my work for it: Chang is participating in a ...
Friday, October 17, 2014 at 2:20pm

Math
Suppose cosA = 12/13 with 0º≤A≤90º. Suppose also that sinB = 8/17 with 90º≤B≤180º. Find cos(A - B).
Friday, October 17, 2014 at 1:41pm

Math
why would I have uarrived at square root 2 over 2 in this question Chang is participating in a charity bicycle road race. The route starts at Centreville and travels east for 13 km to Eastdale. He then makes a 135° turn and heads northwest for another 18 km, arriving at ...
Friday, October 17, 2014 at 1:13pm

math
Find the angle, in degrees, between two adjacent sides of the pyramid. P(2, 0, 0), Q(2, 2, 0), R(0, 2, 0), (base points) S(1, 1, 7) (tip point)
Friday, October 17, 2014 at 12:31pm

math
Find the distance between the point and the plane. (2, 5, 3) 3x + 2y – 3z = –6
Friday, October 17, 2014 at 12:28pm

Math
Please help me! I know I am not showing my work but I don't even know how to solve these! Please help me! Tell whether the given equation has the ordered pair as a solution. 1. y = 6x; (3,16) 2. y = -4x; (-2,8) 3. y = x - 3/4; (2,1 1/4) PLease help me understand how to do ...
Friday, October 17, 2014 at 11:49am

math
Katarina made 6 book covers in each color: red, green, yellow, and purple. She gave 5 book covers to each of her 3 best friends, then she gave 2 book covers to her cousin. How many book covers does Katarina have now?
Friday, October 17, 2014 at 11:16am

Math
A theatre company allows a group of 10 people to buy theatre tickets at a price of $28 per person. For each person in excess of 10, the price is decreased by $2 per person for everyone down to a minimum of $10 per person. What number of people will produce the maximum revenue ...
Friday, October 17, 2014 at 10:40am

7th grade math
Not sure how to solve this: Suppose your school is selling magazine subscriptions. Each subscription cost $20. the company pays the school half of the total sales in dollars. The school must also pay a one-time fee of $18. What is the fewest number of subscriptions that can be...
Friday, October 17, 2014 at 8:05am

math
a car goes to 10km due south,then it turns west and goes 5 km.Now it turns back and goes 10km due north.Where is the car from starting point?
Friday, October 17, 2014 at 1:27am

math
Solve the initial value problem 3(y-1)^2 = y'', with y(0) = 3 and y'(0) = 4. Assume y does not equal 1.
Friday, October 17, 2014 at 1:20am

math
lori recently rode her bike to her friend's house, 8 miles away. On her way back she rode 15mph faster than on her way there. She spent a total of 2 hours biking. What was her average speed each way?
Friday, October 17, 2014 at 12:45am

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