Friday

July 31, 2015

July 31, 2015

**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*

**Math**

provide that 4sin¦Ðsin(60¡ã-¦;Ð)sin(60 ¦Ð)=sin3¦Ð
*Thursday, May 7, 2015 by Anjan sarkar*

**Math**

Eduardo started a business selling sporting goods. He spent $7500 to obtain his merchandise, and it costs him $300 per week for general expenses. He earned $850 per week in sales. What is the minimum number of weeks it will take for Eduardo to make a profit? Write an ...
*Thursday, May 7, 2015 by Sara*

**grade (5) math**

The Rowans decided to build a pool in their backyard. What would be the area and perimeter of this pool? Let X=20 1/2 feet and y=2 1/2 yards. Pls help me!!
*Thursday, May 7, 2015 by ary*

**grade (5) math**

Tony made 85% of his field goal attempts if he made 40 attempts how many field goals did he make? Pls help!!
*Thursday, May 7, 2015 by ary*

**Math**

The length of a rectangle is four times its width. If the perimeter is at most 130 centimeters, what is the greatest possible value for the width? 13 cm 21.7 cm 26 cm 52 cm
*Thursday, May 7, 2015 by Sara*

**Math**

Using the following information for the Vertex and Directrix, write the standard form equation for the parabola with what is given below. Vertex: (-2,1) Directrix: x=1
*Thursday, May 7, 2015 by Gina*

**math**

Marcus has 4 ties and 5 shirts and 3 pair of pants. How many outfits can he make?
*Thursday, May 7, 2015 by gianna*

**Math**

A grade six class is having a fundraiser. The class boys have three bags of apples. Each bag has 24 apples. The total cost of the three bags of apples is $12.24. The class sells the apples for 0.75 each. How much will the class gain per apple?
*Thursday, May 7, 2015 by Lori*

**math**

Use the data in the table to find the slope of the line. x 3 6 9 12 y 1 -1 -3 -5 A. 3/2 B. -3/2** C. -2/3 D. 2/3 am i right?
*Thursday, May 7, 2015 by XenaGonzalez*

**Math**

The 13-member math club needs to choose a student government representative. They decide that the representative, who will be chosen at random, CANNOT be any of the 3 officers of the club. What is the probability that Samara, who is a member of the club but NOT an officer will...
*Thursday, May 7, 2015 by Anonymous*

**Math**

There are 25 computers in a math lab. There are 6 activity booklet for very 2 computers in the math lab. How many activity booklets are in the math lab?
*Thursday, May 7, 2015 by Amber *

**math**

William, Jan, and Greg have a total of $26. Greg has the most money. Jan has twice as much money as William. Greg has $11. How much money does Jan have?
*Thursday, May 7, 2015 by Anonymous*

**math**

When Cheryl goes mountain climbing, she rests 5 minutes every 15 minutes that she climbs.If Cheryl combined time is 2 hours, how many minutes does she rest? P.S I don't want the answer i just need to know the operation to solve this problem
*Thursday, May 7, 2015 by Laila *

**math**

I have a question on my math that my teacher cant help me with because this one is for try it. Can you help me see if it is right?: It says: 12 . Wich is equal to 30 hundreths? A)3 thousandths B)3tenths C)3 tens D)3thousands I think the answer is B but, it really confuses me ...
*Thursday, May 7, 2015 by nicole*

**Math**

John and Jack to help their mothers make fudge for their classroom parties in different classes John's class received 2 1/2 pounds for 25 children Jack's class received 3 1/2 pounds for 35 children which class was able to each more fudge per student?
*Thursday, May 7, 2015 by Grace*

**Math**

When the price of paper increases from $250 to $257 per ton, the quantity supplied increases from 350 to 390 tons per day. The price elasticity of supply is:
*Thursday, May 7, 2015 by Denise*

**chemistry**

A particular brand of toothpaste claims to contain 0.24 wt% sodium fluoride. What mass in grams of fluoride ion would be present in the average amount of toothpaste used to brush one's teeth, about two grams? Now this is a weight percent concentration question, I know that...
*Thursday, May 7, 2015 by frank*

**Math- Sequences**

What are the first four terms of the sequence represented by the expression n(n-2)-3? -5, -2, 1, 4 -4,-3, 0, 5 3, 0, 3, 6 2, 0, 2, 4 I believe it's C?
*Thursday, May 7, 2015 by Juanito*

**math**

a fisherman has estimated that it takes 4 minutes to paint each square foot of a hull of his boat. How much time should the fisherman allow for the painting of the hull, if the hull were composed of 2 sides 28.5 feet by 10.5 feet?
*Thursday, May 7, 2015 by Anonymous*

**Math**

Why did Gonzo walk around carrying Ice Cream and a pair of sparrows?
*Thursday, May 7, 2015 by Nana13*

**math collage algebra**

A Norman window is constructed by adjoining a semicircle to the top of an ordinary rectangular window (see figure). The perimeter of the window is 12 feet.
*Thursday, May 7, 2015 by nancy Medjo*

**Math**

1.6g+8k-9g+2k 3g+10k -3g+10k*** 17gk 10k-3 2.-4x+6x^2+5x 7x^3 6x^2+9x 6x^2-9x 6x^2+x*** 3.a^2+5a-3a^2 5a+2a^2 -2a^2+5a*** -3a^2+6a 5a-3a^2 4.3x^2+8x+7x 3x^2+15x*** 18x^3 3x^2+1 3x^2-x 5.Find the degree of -5w-4w^2+7w+16 -5 16 14 3*** ***=my answer
*Thursday, May 7, 2015 by fairypenguingirl*

**math**

A contractor, Mr. Parker charged his customer $100 for painting a rectangular ceiling of length 5.4m and width 3m. Another contractor, Mr. Lewis charged his customer $115 for painting a rectangular ceiling of length 5.7m and width 3.2m.The quality of work is the same and both ...
*Thursday, May 7, 2015 by Linda*

**math**

what are the next three terms in the sequence -3 6 15 24 35, 46, 57 34, 44, 54 33, 44, 56 33, 42, 51 i think it's d
*Thursday, May 7, 2015 by autistic manchild*

**Math discussion **

As part of their job, meteorologists use data to make weather predications. How accurate are their predications? What are other scenarios in which you would use to data to make a predication? How would you defend your predication using data?
*Thursday, May 7, 2015 by M*

**math**

who would you write 36% of what number is 18?
*Thursday, May 7, 2015 by Anonymous*

**math**

what is the total amount of edging that would be required to cover all edges of a rectangular prism measuring 10 cm by 30 cm by 15 cm?
*Thursday, May 7, 2015 by sharon*

**MAth**

Calculate the perimeter of a right triangle where the legs are 6 cm and 8 cm
*Thursday, May 7, 2015 by sharon*

**Math**

How do I figure out what quadrilateral has 90 90 125 65 digrees on each side?
*Thursday, May 7, 2015 by Alyssa*

**Math**

find the three geometric means between -2/3 and -54
*Thursday, May 7, 2015 by Aimee*

**Math**

find the third term in the expansion of (3x-y)^6
*Thursday, May 7, 2015 by Aimee*

**math**

Rich has 3 pieces of pizza. Each pizza end forms a 20° angle. If all of the pieces were placed together what would the size of the angle be?
*Thursday, May 7, 2015 by nicole*

**Math**

Hint: 6% x $1,000,000 / $1,000,000 – {20% x ($1,000,000 – (6% x $1,000,000))] = ?
*Thursday, May 7, 2015 by D*

**Math **

Hint: 6% x $1,000,000 / $1,000,000 – {20% x ($1,000,000 – (6% x $1,000,000))] = ?
*Thursday, May 7, 2015 by Anonymous*

**Math Please Check My Answer**

A box contains 95 pink rubber bands and 90 brown rubber bands. You select a rubber band at random from the box. Find each probability. Write the probability as a fraction in simplest form. a. Find the theoretical probability of selecting a pink rubber band. b. Find the ...
*Thursday, May 7, 2015 by OceanBreeze*

**Math**

Construct a square based pyramid of volume 216cm3. What are the dimensions?
*Thursday, May 7, 2015 by Keon Gonzales*

**Math**

Insert parentheses to make this equation correct: 7 - 6 x 7 / 5 + 7 = - 43.4 / is used for division sign
*Thursday, May 7, 2015 by Sue*

**Math**

Simplify 1) x + 1/ x - 1 + x^2 -1 / x + 1 2) 4x/x^2 - 1 - x + 1/x - 1
*Thursday, May 7, 2015 by luniva*

**Math**

A $10 bottle of detergent yields 10 loads of laundry. Allen tries this detergent & finds he can do only 8 loads of laundry from 1 bottle. What fraction of the advertised # of loads was he able to do?
*Wednesday, May 6, 2015 by Des*

**Math**

i really dont understand. i tried figure out. i started with the first charges: sqrt[2(20)(100))/0.05} 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 $100 also ...
*Wednesday, May 6, 2015 by Mirella*

**Math**

Jeanine used 21/2 cups of flour to make muffins and 1 3/4 cups of flour to make biscuits. After borrowing 1/4 cup of flour,she had 2 1/4 cups left to make bread. How much flour did she have to begin with?
*Wednesday, May 6, 2015 by Anonymous*

**7th grade math (probability)**

I'm posting corrections from yesterday 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 and choose a ...
*Wednesday, May 6, 2015 by Alexis*

**Math**

As part of a pancake recipe, you mix 3/4 cup of milk for every 1 cup of flour to make 7 cups of batter. How much of each ingredient do you use?
*Wednesday, May 6, 2015 by Amber *

**math**

write 10 1/2% of 60
*Wednesday, May 6, 2015 by Anonymous*

**math**

Q - 8 = -9
*Wednesday, May 6, 2015 by snm*

**math**

use L'Hospital's rule to evaluate: limit as x approaches to 0 of (1/sinx -1/x)
*Wednesday, May 6, 2015 by linda*

**math**

48,778 ; 41,046 ; 29,083 ; 36, 394 ; 32,302 ; 42,787 ; 41,972 ; 37,229 ; 25,314 ; 31,920 ; 38,030 ; 38,445 ; 30, 750 ; 38,886 ; 36,770 ; 46,046 use five classes. is it reasonable to assume that the life spans are normally distributed? I don't get what am I suppose to do?
*Wednesday, May 6, 2015 by Achuuu*

**Math**

This is my sample: 29,083 ; 25,314, 31,920 ; 30,750 ; 32,302 I need to find the mean and standard deviation of this sample?! How can i assure the life spans are normally distributed?
*Wednesday, May 6, 2015 by Aqueen*

**calc (confused)**

A wedge is cut from a right circular cylinder of radius r by two planes, one perpendicular to the axis of the cylinder and the other making an angle (beta) with the first. Find the volume of the wedge by slicing perpendicular to the y-axis. Please show all steps and ...
*Wednesday, May 6, 2015 by beam *

**Math**

Find the level of elevation of the sun when a 842 foot building casts a shadow72.6 feet long
*Wednesday, May 6, 2015 by Tim*

**math**

City wide delivery service uses vans costing $24800 each. How much will the company have to invest today to accumulate enough money to buy six new vans at the end of 4 years? City wides bank is currently paying 12% interest compounded quarterly
*Wednesday, May 6, 2015 by jasmine*

**Math Help**

With the given information below, write the standard form equation for the parabola. 1.) Vertex: (-1,2) Focus(-1,0) 2.) Vertex: (-2,1) Directrix x=1
*Wednesday, May 6, 2015 by Katie*

**Math**

What is the exact value of sin(-15 degrees)?
*Wednesday, May 6, 2015 by Anonymous*

**math**

1. two circles. x^2+y^2-16x-8y+35=0 and x^2+y^2=5 are given. a. write the equations in the standard form. b.prove that the circles touch each other. c.hence calculate the equation of their common tangent 2. find the equation of a. circle. with centre c(2;3) and which I is the ...
*Wednesday, May 6, 2015 by Anonymous*

**Math **

. At a track meet, 50 people ran the 100-meter dash. 2 people finished in 11 seconds, 5 people finished in 12 seconds, 8 people finished in 13 seconds, 10 people finished in 14 seconds, 21 people finished in 15 seconds, 2 people finished in 16 seconds, and 2 people finished in...
*Wednesday, May 6, 2015 by Ashley *

**math**

Suppose the matrix A has eigenvalues lambda_1 = -1, lambda_2 = 1, lambda_3 = 2, with corresponding eigenvectors v_1 = [0 5 3]^T, v_2 = [2 0 1]^T, v_3 = [1 -1 0]^T. If you diagonalize A as A = PDP^-1 with P = [2 2 0; p_21 p_22 2; p_31 p_32 p_33], D = [2 0 0, 0 1 0; 0 0 -1], ...
*Wednesday, May 6, 2015 by Anonymous*

**math**

A. determine the equation of the circle passing through points A(3;2) B(8;12) and C(-6;-2) B. a chord of the circle x^2+y^2=50 has a midpoint at (6;3). determine the equation of this chord.
*Wednesday, May 6, 2015 by Anonymous*

**finance math**

A single person earns a gross biweekly salary of $780 and claims 6 exemptions. What is the person's net pay? a. It is the same as the gross pay. b. It is $11 more than the gross pay. c. It is $11 less than the gross pay. d. It is $13 less than the gross pay.
*Wednesday, May 6, 2015 by angela*

**math**

A countrywide estate agency specializes in selling commercial ventures. Their records show that the mean selling time is less than 90 days. Because of recent economic conditions, they believe that the mean selling time is now greater than 90 days. A countrywide survey of 100 ...
*Wednesday, May 6, 2015 by Frans*

**math**

find the slope of the following graphs. x -1,0,1,2 y 4,2,1,-2 a.1 over 2 b.2 c.-2* d.- 1 over 2 find the slope of the following graphs. x -2,2 y 5,1 a.3 over 2 b.1 c.-1* d.- 3 over 2 find the slope of the following graphs. x 0,3 y 0,2 a.2 over 3* b.3 over 2 c.3 d.- 2 over 3 ...
*Wednesday, May 6, 2015 by collin*

**math**

prove that: 4cosec2ACot2A=cosec^2A - sec^2A
*Wednesday, May 6, 2015 by peter*

**Math**

A cylinder cop has a circular base of radius 7cm & height of 10cm taking 22/7(a)calculate it curved surface(b)d area of it circular base
*Wednesday, May 6, 2015 by patience daniel*

**Math**

There are 64 students. 80% scored a 75 on a final test. How many students scored a 75?
*Wednesday, May 6, 2015 by Ron*

**math**

find the slope of the line that goes through the following points: x 0 1 2 3 _________________ y -4 -3 -2 -1
*Wednesday, May 6, 2015 by riri*

**math**

Terrell has a water purifier for backpacking. It will purify 1 liter of water in 1 minute. How long would it take Terrell to purify enough water for 4 canteens that each hold 750 mL, and two that each hold 1.5 L?
*Tuesday, May 5, 2015 by Ri!@#$%^&a Papaiya*

**7th grade math (probability)**

1. Cmdr's coffee shop offers a coffee special with coffee syrups of vanilla, chocolate, and caramel. You can also choose between a latte, and cappuccino. How many different coffees can you make for the special? Ans: 6 (VLatte, ChocLatte, CLatte; VCap, ChocCap, CCap) 2. ...
*Tuesday, May 5, 2015 by Alexis*

**Math/algebra**

Post a New QuestionCurrent Questions Homework Help: Algebra Posted by Kristen on Tuesday, May 5, 2015 at 7:53pm. A bank teller counts her $10 and $5 bills at the end of the day. She has a total of 70 bills. The total value of the money is $595. Let f represent the number of $5...
*Tuesday, May 5, 2015 by Kristen*

**Math**

A) Let x represent the number of messages posted each month on a social netwroking website. B) let x represent the length of time it takes to get to work. I got A) continuous B) discrete Am i correct??
*Tuesday, May 5, 2015 by Aqueen*

**Math **

How do you find the quadratic equation, in standard form, that has the roots x= (2±√5)/3
*Tuesday, May 5, 2015 by Lily*

**Math**

What does a and c stand for in the quadratic function Ax^2+bx+c
*Tuesday, May 5, 2015 by M*

**Math**

Q. Sammy loves miniature golf. Last year he played 572 games of miniature golf. Assuming that Sammy played the same number of games each week, how many games per week did Sammy play last year? Hint: there's 52 weeks in a year! A. Do I divide 572 by 52?
*Tuesday, May 5, 2015 by Jeanie*

**Math**

A student covers the outside of a show box with construction paper. If the student does not cover the lid, what is the surface area that is covered? Please show work. Possible answers: A) 982.25 B) 1433.50 C) 1964.50 D) 5044.50
*Tuesday, May 5, 2015 by Victoria*

**math**

A certain sum of money was shared among 3 friends, A, B, and C. A received 3/7 of the money, and B got 2/3 as much as A. C received $49 less than A. a) Find the ratio of B’s money to C’s money. b) How much money did C receive?
*Tuesday, May 5, 2015 by jessi*

**Math**

Determine which function has the greater rate of change in this question? These are the points on the graph. A. (-1,0), B(0,1) C(1,2) This is the table X, -1,0,1,2 Y, 0,1,2,3 A. The rates of change are equal. B. The graph has a greater rate of change. C. The table has a ...
*Tuesday, May 5, 2015 by Dove*