Tuesday
July 7, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

Math
Do the data in the table represent a linear function? if so, write a rule for the function X= -2,-1,0,1,2 Y= -7, 1,8,17,25 A. yes; y= 8x + 9 B. yes ; y = 8x +8 C. yes ; y = 1/8x+8 D. no***
Monday, May 11, 2015 by Abby

Math
A prototype rocket burns 159 gallons of liquid hydrogen fuel each second during a regular launch. Make a table that shows how many gallons of fuel are burned after 2,3,5,and 10 seconds. Please help me
Monday, May 11, 2015 by anono

Math
5*3^n A.15,30,45,60*** B.5,15,45,135 C.0,15,45,135 D.15,45,135,405 I need help plz answer my question
Monday, May 11, 2015 by Abby

math
Explain how to write a function rule from the table below. Then write a function rule. x 2 4 6 y 1 0 -1
Monday, May 11, 2015 by emma

Math
the cost of a student ticket to the schools play is $7. write an equation that correctly relates the cost,c,for particular number of student tickets,s,purchased indetify the independent and dependent variables (3 Points) Please help
Monday, May 11, 2015 by mang

Extremly hard math
The function rule C =10n+26 relates the number of people n who attend a small concert to the cost of dollars C of the concert. Make a table of the imput/output pairs to show the cost if 27,39, and 43 people attend. Please help me I dont understand any of this.
Monday, May 11, 2015 by Dove

Math
use the function rule f(x)=x * |-1|^x. find the output f(2). A.4 B.3 C.-2 D.2
Monday, May 11, 2015 by Abby

Math
Mackenzie wrote a deacimal in expanded form: (8x10)+(7x1)+(5x1/10)+(3x1/100)+(2x1/1,0​00) What is the decimal?
Monday, May 11, 2015 by Amy

Math
5*3^n A.15,30,45,60*** B.5,15,45,135 C.0,15,45,135 D.15,45,135,405
Monday, May 11, 2015 by Abby

math
Select the phrase that correctly completes the sentence The value of the dependent varibale in a function is always _________ the value of the independent A. Determined By B.greater than C.equal to D.less than
Monday, May 11, 2015 by mang

Math
Does the figure have rotational Symmetry? Find the angle of rotation. (It's just a picture of a star.) A-YES; 30 degrees B - YES, 60 degrees C- yes 72 degrees D no.
Monday, May 11, 2015 by xLondomSkiesxxx

math
We throw 250 darts (one by one) at 1200 dart boards. Each dart strikes a board randomly. No dart's strike affects any other. What is the probability that two darts will strike the same board? I make it 1 in 1200, b/c the probability of the 1st dart striking a board is 1. ...
Monday, May 11, 2015 by Jane

Math last question.
(3x^2 - 7x -4) - (6x^2 -6x +1) It's a polynomial I think the answer is D or C, but I'm not sure which one. Help please A. 3x^2 - 13x - 5 B. 9x^2 - x + 5 C. -3x^2 -13x + 5 D. -3x^2 -x -5
Monday, May 11, 2015 by anonymous

Math
Which is the best type of graph to show the number of markers in each classroom, if markers come in boxes of 20?
Monday, May 11, 2015 by Coco

Math
add or subtract. P.s this is a polynomial. (2x^2 + 6x + 1) + (-7x^2 + 2x - 3) A. -9x^2 -8x + 2 B. 5x^2 + 8x - 2*** C. 5x^2 - 8x + 2 D. 5x^2 -4x -2 i choose B. check please
Monday, May 11, 2015 by anonymous

math
logb3=1.099 logb8=2.079 find logb216 i am just lost on what to do
Monday, May 11, 2015 by bob

math
what is 3256/9
Monday, May 11, 2015 by alyssa

Math
I need help with knowing how to simplify this radical. (8*sqrt7s/sqrt28s^3)
Monday, May 11, 2015 by First Name:

Pseudocode
Produce the algorithm for the problem above [this will include five “get” statements to input item 1, item 2, item 3, item 4 and item 5; three math statements to process the subtotal, tax and total; and three “display” statements to output the subtotal, tax...
Monday, May 11, 2015 by Kevin

math
a large jug has 3 liters in it.andrew drink 1/2 litre of the juice.how much juice is left
Monday, May 11, 2015 by fabion

Math
Please help me find the slope of a line that is perpindicular to the line to the line containing the points -2, -1 and 2, -3. m = -2 m = 2 m= -1/2 m = -1 I think it is a, but I have no idea
Monday, May 11, 2015 by PLEASE HELP THIS IS URGENT

Math
Jack ran 3/4 km. Jack ran 1/2 km longer than Jill. What was the distance Jill ran?
Monday, May 11, 2015 by Ocean

Math 12A Plain Trigonometry
a surveyor wishes to measure the distance between two objects, a carabao and a tower on the opposite side of the river. while standing at point R, he finds that the distance between the carabao is 30 meters, while the distance to the tower is 415 meters. The angle formed ...
Monday, May 11, 2015 by Azalea

Math 12A Plain Trigonometry
a boat leaves lighthouse P and sails 10 miles. At the same time, it is sighted from lighthouse Q, 13 miles west of P. The bearing of the ship from Q is North 70 degree and 30 minutes East. Find the distance of the ship from Q.
Monday, May 11, 2015 by Azalea

Math
What is the equation of the line that passes through the point (-2,3) and that is perpendicular to the line represented by 3x-2y=-2? A. 2x+3y=5 B. 2x+3y=7 C. -2x=3y=5 D. 3x-2y=-12 I think that the answer is D, but I am not too sure about it.
Monday, May 11, 2015 by Haley

math
Water is taken from a well 11m deep in a bucket,the rope winding up to a drum 35cm in diameter. A)Through what angle does the handle turn in winding up 1m of rope? B)How many revolutions of the handle does it take to bring the bucket up from the bottom? C)If the arm of the ...
Monday, May 11, 2015 by james

math
The population of a certain country grows according to the formula N=N0e^kt where N is the number of people(in millions) after t years,N0 is the initial number of people(in millions) and k=1/20In 5/4.Calculate the doubling time of this population.Leave your answer in terms of ...
Monday, May 11, 2015 by enhlee

math
a certain recipe for 7/8 cup of granola. How much is needed to make 5/4 of the recipe
Monday, May 11, 2015 by Albert Einstein

math
The length of a rectangular solid is three times the width. Find the volume and the length of its diagonal if the total surface area is 198 square inch
Monday, May 11, 2015 by loemie paderog

College math
Each inidividual letter of the word Tallahassee is placed on a piece of paper and all 11pieces of paper are placed in a hat, if one letter is selected at random from the hat, determine the probability that the letter T or F is selected.
Monday, May 11, 2015 by Patricia

math
A prototype rocket burns 159 gallons of liquid hydrogen fuel each second during a regular launch. Make a table that shows how many gallons of fuel are burned after 2,3,5, and 10 seconds.
Monday, May 11, 2015 by i need of help

math
In a camp ,there is a meal for 120 men or 200 children . if 150 children have taken the meal, how many men will be catered to with remaining meal
Monday, May 11, 2015 by math

math
In a camp ,there is a meal for 120 men or 200 children . if 150 children have taken the meal, how many men will be catered to with remaining meal
Monday, May 11, 2015 by Anonymous

math
population increasing at rate of 5% per year current population 7,000,000 what will it be in 12years
Sunday, May 10, 2015 by Anonymous

math
A particle moves along the x-axis with position function s(t) = esin(x). How many times in the interval [0, 2π] is the velocity equal to 0?
Sunday, May 10, 2015 by Anonymous

math
A news papers profit is $25 per year for each of it's 5500 subscribers. Management estimates that the profit per subscriber will increase by 1 cent for each additional subscriber over the current 5500.How many will bring a total profit of $180,000
Sunday, May 10, 2015 by antonio

math
While building a snowman, a large snowball is created at the rate of 5 inches per hour. How fast is the volume of the snowball changing at the instant the snowball has a radius of 10 inches?
Sunday, May 10, 2015 by Anonymous

Math
Tobias is helping his uncle paint the side of a barn. Each can of paint covers 80 square feet. If the side of the barn is 10 feet high and 15 feet wide, how many cans of paint will Tobias need?
Sunday, May 10, 2015 by Laura

math
a locker combination has tow nonzero digits and digits can be used twice. the first number is 8.what is the probality that the second number is 8
Sunday, May 10, 2015 by Anonymous

Stats (Math)
Assume that Science scores on a 25-point quiz for a random sample of 5 students were drawn from a normal population. The assumed variance was 20 while the recorded variances were: 18, 16, 10, 13, and 23. You suspected that the variance is actually higher. What test do you need...
Sunday, May 10, 2015 by Leeroy

Math
(a) Find the present value of $ 4600 per year flowing uniformly over a 10 -year period if it earns 5.3 % interest compounded continuously. (b) What is its final value?
Sunday, May 10, 2015 by Irina

math
If 50100 dollars is deposited in an account for 14 years at 5.35 percent compounded continuously , find the average value of the account during the 14 years period.
Sunday, May 10, 2015 by Irina

Math
Can you help me to understand the meaning of reduction?
Sunday, May 10, 2015 by Olivia

Math
Which set of best describes the numbers used on a scale for a standard thermometer? A.whole numbers B.rational numbers C.real numbers D.integers I choose Real Numbers if I am incorrect can you explain why.
Sunday, May 10, 2015 by Olivia

Math
Solve for y, state the m and b, and graph. X-3y+9=0
Sunday, May 10, 2015 by Jim

Math
If the line through (x,1) and (0,y) is coincident with the line through (1,4) and (2,-3), find x and y.
Sunday, May 10, 2015 by Allyssa

Math
Given Perimeter of triangle is 26 inches. Side A is 3 inches longer than B. Side C is 1 inch shorter than twice side B
Sunday, May 10, 2015 by Tom

Math to hard please help
The function rule C= 10n+26 relates the number of people n who attend a small concert to the cost in dollars C of the concert. Make a table of the input/output pairs to show the cost if 27,39, and 43 people attend.
Sunday, May 10, 2015 by stupid at math

math
sin
Sunday, May 10, 2015 by rahul

math
The efficiency e of a gasoline engine as a function of its compression ratio r is given by e =1− r1−γ , where γ is a constant. Find γ for e = 0.55 and r = 7.5.
Sunday, May 10, 2015 by Mat

math
A jar contains 5 green erasers, 2 striped erasers, 4 pink erasers, and 3 white erasers. You select an eraser at random. What is P(pink)? a)2/7 b)2/5 c)5/7 d)4/7
Saturday, May 9, 2015 by #HOMEWORK

Math
Joseph spent 3/4 hour working out at the gym. He spent 2/3 of that time lifting weights. What fraction of an hour did he spend lifting weights?
Saturday, May 9, 2015 by Anonymous

Common Core Math II A-CR
A firework is launched into the air from ground level with an initial velocity of 128 ft/s. If acceleration due to gravity is –16 ft/s2, what is the maximum height reached by the firework?
Saturday, May 9, 2015 by darian

Math
phyllis wants to fence in a rectangular garden with maximum area. she has 22 feet of fence. all the lengths of the sides of her garden must be whole numbers of feet. what is the best choice available to phyllis for the side lengths of her garden? Why?
Saturday, May 9, 2015 by Shohanur

algebra
In 2018, the number of people employed as registered nurses in the U.S. is expected to be 3,200,000. This represents a 22% increase over the number of people employed as registered nurses in 2008. Find the number of registered nurses employed in 2008. Round to the nearest ...
Saturday, May 9, 2015 by jaimecarlon

math
Angles MRQ and RPN are alternate interior angles. If angle MRQ=5x+7 and angle RPN=7x-21, what is the value of x?
Saturday, May 9, 2015 by Tameka

math
In the parallelogram below, if angle B=2x+15 and angle A=3x-5, what is the measure of angle D?
Saturday, May 9, 2015 by Tameka

math
If AB=7 and BC=12, then what is the length of AC?
Saturday, May 9, 2015 by Tameka

math
The altitude of equilateral triangle ABC is 15. What is the length of a side of triangle ABC?
Saturday, May 9, 2015 by Tameka

math
angles MRQ and RPN are alternate interior angles. If angle MRQ=5x+7 and angle RPN=7x-21, what is the value for angle MRQ?
Saturday, May 9, 2015 by Tameka

math
an angle measuring 32 degrees has a complement that measures (2x-16) degrees. What is the value of x?
Saturday, May 9, 2015 by Tameka

Math
A bag of five apples contains three ripe apples and two rotten apples. If a ripe apple is selected first, what is the probability that a second apple selected is rotten?
Saturday, May 9, 2015 by Alyssa

math
a mechanic is looking over his supply of oil. he counted a jug that had 2 quarts of oil another had 3 3/4 and another that only had 1 pint. how much oil does he have?
Saturday, May 9, 2015 by hw

Math
Is this independent or not. Carlos tosses a coin that comes up heads. Jennifer tosses a coin that also come up heads.
Saturday, May 9, 2015 by Alyssa

math
i started with the first charges: sqrt[2(20)(100))/0.05]. I don't know I'm doing right. Here the problem: Suppose you have a choice of three suppliers for footballs. the first charges $100 per delivery but won't deliver more than 200 at a time; the second charges $...
Saturday, May 9, 2015 by grace

Math
The angle of elevation of the top of house from the bottom of a tower 160m high is 26 degree.From the top of the tower the angle of elevation is 24 degree.What is the height of the house if the tower and the house are 50m apart?
Saturday, May 9, 2015 by Perpetua

Math
the great pyramid of cheops is a square based pyramid with a height of 147 meters and a base length of 230 meters. find the angle to the nearest degree that one of the edges of the pyramid makes with the base
Saturday, May 9, 2015 by Hsgs

math
8 is to 64 as 2 is to x solve for x
Saturday, May 9, 2015 by Elzada

Math
Math: Is this statement independent or not. Jordan stayed up late last night watching television. Jordan did poorly in his quiz in the morning.
Saturday, May 9, 2015 by Alyssa

math
The probability that 1 egg out of 30 is cracked is 0.05. a)Find the probability that at least 1 egg is cracked out of 30. b)Find the probability that at most 2 are cracked
Saturday, May 9, 2015 by harsh

math
the first and last term of an AP is a and l.show nth term from begining and nth term from end is a l
Saturday, May 9, 2015 by ritika

extreme math help please
The data in the table illustrate a linear function. What is the slope of the linear function. x |0|2|4|6| y|-5|-2|1|4| Thank you
Saturday, May 9, 2015 by Anono

math
the price for pears is y=2.75x which line would have the steepest slope if organic apples and pears were added to the graph
Friday, May 8, 2015 by ciara

math 2 questions
Three indviduals form a partnership and agree to divide the profits equally. X invests $6,500, Y invests $2,000, and Z invests $1,500. If the profits are $3,000, how much less does X receive then if the profits were divided in proportion to the amount invested? In printing an ...
Friday, May 8, 2015 by sia

math help please
Which hill described in the table is the steepest and why? Street. Horizontal distance vertical (ft). Rise of Street (ft) Dixie hill. 100. 60 Bell hill. 100. 50 Liberty hill 100. 20 A. Dixie hill; it rises 5 feet for every 3 feet of horizontal travel. B. Dixie hill; rises 3/5 ...
Friday, May 8, 2015 by AG Girl

Math
A Canadian television station shows 16 minutes of commercials every hour between 8 am and 11 pm everyday. How many minutes of commercials are there on the station between 8 am and 11 pm in 365 days?
Friday, May 8, 2015 by Layla

Math
Emma's rectangular garden is enclosed with 24 m of fencing. What is the least possible area of Emma's garden? What is the greatest possible area? I don't understand what to do? How do we find the least and greatest possible area? Lauren Grade 6
Friday, May 8, 2015 by Lauren

math
A marksman is shooting at a target hits it 12 1/2% of the time. How many times must he shoot to register 100 hits.??
Friday, May 8, 2015 by sia

math
when the price of chain increased from 16.4 cents to 20.5 cents . What was the percent increase in the cost of chain.?
Friday, May 8, 2015 by Sia/sarah sisters

math
solve y"+4y-4z'=3x z"+z-y'=1-x where y(0)=z(0)=1 and y'(0)=z'(0)=0 by laplace transform
Friday, May 8, 2015 by assma

math stuck please help!!!
A private plane traveled from Seattle to a rugged wilderness , at an average speed of 252 mph . on the return trip , the average speed was 180 mph . if the total time was 9 hours how far is Seattle from the wildness
Friday, May 8, 2015 by BEN

strategic math
A roof is supported by 7 rafters, each 6 1/2 feet long at 70 cents a running foot. How much did these rafters cost?
Friday, May 8, 2015 by Sia

general math
if 3 1/2 bags of seed cost $35, what will 4 1/2 bags cost?
Friday, May 8, 2015 by Sara

math
the baseball game lost 13 games this season. that was 5/8 of all they played. how many games did they play this season?
Friday, May 8, 2015 by kylaa

math
what is the theme of the story the Christmas goblin by Charles Dickens?
Friday, May 8, 2015 by lizzy

MATH
Your original purchase price was $825.00 plus 7% sales tax. You enter into an agreement where the interest (12.5% APR) is waived for the first 12 months provided you make the required monthly payments; otherwise the interest is accrued from the date of purchase. You miss the ...
Friday, May 8, 2015 by Sandra

extreme math help please
Explain how to write a function rule from the table below. Then write a function rule. x|2|4|6| y|1|0|-1|
Friday, May 8, 2015 by Anono

Math please
Hi nobody helped me can you check on what I asked? Thank us
Friday, May 8, 2015 by AG Girl

Math to hard please help
I was skipped over can someone please help me. Thank you
Friday, May 8, 2015 by Anono

math
What function is a quadratic function? A.y=1/y B.y=5x-7 C.y=-x2+2y D.y=|x| Is the answer C?? Thank you
Friday, May 8, 2015 by Anono

math
The data in the table illustrates a linear function. What is the slope of the linear function? x| 0| 2|4|6 y|-5|-2|1|4 Please shoe me how to figure this out? Thank you.
Friday, May 8, 2015 by AG Girl

Math
1.What is the unit rate for Fred's Sub shop?(Will post photo/link in the comments) A. $10 for 2 subs B. $5 for 2 sub C. $1 for 1/5 of a sub D. $30 for 6 subs 2. What is the slope-intercept equation for the cost of a sub at Fred's sub shop? A. y = 2x B. y = 10x C. y = ...
Friday, May 8, 2015 by Savaline

Math - Polynomials
off-topic: yay it's friday :D Simplify each polynomial. 1. 6g + 8k + 9g + 2k A) 3g + 10k B) -3g + 10k *** C) 17gk D) 10k - 3 2. -4x + 6x2 + 5x A) 7x^3 B) 6x^2 + 9x *** C) 6x^2 - 9x D) 6x^2 + x 3. a^2 + 5a - 3a^2 A) 5a + 2a^2 *** B) 5a - 2a^2 C) 2a^2 + 5a D) 5a - 3a^2 Are ...
Friday, May 8, 2015 by Johnny

Economic Math
Suppose the supply and demand for milk is described by the following equations: Qd=600-100P, Qs = -150+150P, where P is price in dollars . Qd is quantity demanded in millions of gallons per year. A. Create supply and demand tables corresponding to these equations. B. Graph ...
Friday, May 8, 2015 by Abraham

7th grade math (probability)
I'm re-posting corrections originally from Wednesday in addition to new ones. Still not sure how to answer #4. 2. Edwin rolls a number cube and then spins a color from a color card (red, yellow, blue, green, white). What is the probability that he will roll an even number ...
Friday, May 8, 2015 by Alexis

math
If A + B + c = 180 then show that sinA + sinB + sinC=4cosA/2. cosB/2 . cosC/2
Friday, May 8, 2015 by Robert

math
97 is 5% of what number
Friday, May 8, 2015 by Anonymous

Math
The sea ice around the south pole fluctuates between 18 million square kilometers in September to 3 million square kilometers in March. During how many months are there more than 15 million square kilometers of sea ice?
Friday, May 8, 2015 by Michael

Math
Which table of values shows y=x-8? A. x|y -5|3 -8|0 -7|1 B.x|y -5|-13 -8| 0 -7|-15 C.x|y -5|-13 -8|0 -7|1 D.x|y -5|-13 -8|-16 -7|-15 Is the answer D? Thank you.
Friday, May 8, 2015 by AG Girl

math
the ratio of gasoline to oil need is 16:1 if you have 3.5 ml of oil how many ml of gasoline must you add to get the proper mixture find answer
Thursday, May 7, 2015 by mona

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