Wednesday
August 24, 2016

# Homework Help: Math

## Recent Math Questions

math
An Apple Computer Center sells computers for $1,192.80. Assuming the computers cost$10,080 per dozen. a. Find the dollar markup for each computer. (Round your answer to the nearest cent.) Dollar markup $b. Find the percent markup on cost for each computer. Percent markup % ... Monday, June 20, 2016 by monica math Arley’s Bakery makes fat-free cookies that cost$1.60 each. Arley expects 40% of the cookies to fall apart and be discarded. Arley wants a 35% markup on cost and produces 200 cookies. Assume that Arley can sell the broken cookies for $1.50 each. What should Arley price ... Monday, June 20, 2016 by alex math Working off an 18% margin, with markups based on cost, the Food Co-op Club boasts that it has 4,300 members and a 165% increase in sales. The markup is 33% based on cost. What would be its percent markup if selling price were the base? (Round your answer to the nearest ... Monday, June 20, 2016 by chelle math The planet Mercury travels 180,600 miles in its orbit during the 7 hours that make up a typical school day. Find the unit rate. Monday, June 20, 2016 by tyjuan carter Math I am a a seven-digit number my millions place is 5. My ten thousands and hundreds place is the difference between my millions place and hundreds place . And my remaining place value is 0 what number am l ? Monday, June 20, 2016 by Joy MATH My ones digit is 1.My tens digit is 2 ore than my ones digit.My thousands digit is the difference when my tens digit is subtracted from my hundreds digit.what number am I? Monday, June 20, 2016 by christine math write the largest 4-digit number using the digits 9 and 8.Use each digit twice Monday, June 20, 2016 by christine math if f(x)=x^3+3x^2-2x+4 find f(-2)+f(2)-f(0) Monday, June 20, 2016 by raghav math A number is 8 more than another number.If the product of the two numbers is 20.Find the numbers. Monday, June 20, 2016 by night math The gestation period of humans(266 days) is_________ percent longer than the gestation period of grizzly bears (220 days). Sunday, June 19, 2016 by Anonymous math If the sum of first four terms of GP is 30, sum of last four terms of GP is 960 and first term is 2 then find common ratio. Sunday, June 19, 2016 by Bhishma Math On a 20 question math test, your teacher gives you five points for every correct answer and takes away one point for each incorrect answer. If you score 70 on the test, how many did you get correct? Sunday, June 19, 2016 by Brian Math Describe a scenario where you expect a set of data to have A.) a large standard deviation B.) a small standard deviation The prize for winning a contest can be chosen from category a or category b. Prizes from category a have a mean of$1000 and a standard deviation of $50. ... Sunday, June 19, 2016 by Jenny math Find the smallest positive integer not relatively prime to 2015 that has the same number of positive divisors as 2015. Sunday, June 19, 2016 by david Math A cliff on the bank of a river is 250m high if d angle of depression of d point of d opposite side of the river is 50 degree,find the width of d river Sunday, June 19, 2016 by Esther Math On a 20 question math test, your teacher gives you five points for every correct answer and takes away one point for each incorrect answer. If you score 70 on the test, how many did you get correct? Sunday, June 19, 2016 by Brian Math At the Cafe, a lunch of iced tea, a veggie burger, and fries costs$7.56, with the fries costing twice as much as the iced tea. Next week at the Cafe, the price of the iced tea will increase 10% and the price of the veggie burger will increase 25%. After the increase, the same...
Sunday, June 19, 2016 by Jeff

Describe a scenario where you expect a set of data to have A.) a large standard deviation B.) a small standard deviation
Sunday, June 19, 2016 by Jenny

Math
For the function f(x)=sinx, show with the formula sin^2A=1/2(1-cos2A) that f(x+y)-f(x)=cosxsiny-2sinxsin^2(1/2y)
Sunday, June 19, 2016 by Anonymous

math
use digits 45678 only write the greatest number poossible with 7 in the ten thousands place
Sunday, June 19, 2016 by kirsten

math
How many terms of arithmethic sequence with the common difference of 4. And the first is equal to 3 and the last term 59??
Sunday, June 19, 2016 by ralph

Math
There are two alloys consisting of zinc, copper and tin. The first alloy contains 25% zinc and the second alloy contains 50% copper. The percentage of tin in the first alloy is twice that in the second alloy. 200 kg of the first alloy and 300 kg of the second are melted ...
Sunday, June 19, 2016 by Tamasa

math
If sin theta=1/3then find the value of 2cot^2+2
Sunday, June 19, 2016 by preeti

Math
If the thousands digit of a far digit number is increased by 1 how much is the number increased?
Sunday, June 19, 2016 by Jhanielle

math
Of the following, the closest approximation to [{198.27(.50120)}/2.02] ?
Sunday, June 19, 2016 by tasreef

math
what must be added to 2x^3 - 4x +9 to get 5x^ 3 -13
Sunday, June 19, 2016 by raghav

Math 5
A test in science is scored in the ff. way. Each correct response score 5 points while each wrong response scores 2 points. Ryan got 15 correct answers out of 20 item test. What was his score????❓❔
Saturday, June 18, 2016 by Koala

math
nth terms of 2,4,6,8,10
Saturday, June 18, 2016 by romelyne

Math
An object moves along the path x^2 - y^2 = 5. At the point (-3, 2),dx/dt = -4. Find dy/dt at that same point. I understand that dy/dt of the function is y' = x/y but I am not sure how to find it at that specific point. Could you please help? Thank you!
Saturday, June 18, 2016 by Jessica

Math Probability (Coin Flip)
Two People flip a coin, Each person flips it 50 times, Each person then counts the number of heads, What is the probability they both get the same number of heads?
Saturday, June 18, 2016 by Nisreen

MATH
FIND THE LENGTH OF AN ARC ANGLE IS 60 DEGREE AT THE CENTRE OF A CIRCLE OF RADIUS 3CENTIMETRE
Saturday, June 18, 2016 by EMMANUEL

Math
How much water do i need to mix with potassium chloride to make 30 cc
Saturday, June 18, 2016 by Randolph

Sydney drew a scale diagram of a circular fire pit in the centre of a circular patio with an actual circumference of 15m. The circle containing the fire put is a reduction of the circular patio by a scale factor of1/3. A.) Determine the diameter of the actual fire pit to the ...
Saturday, June 18, 2016 by Cherie

math
Use the digits 4,5,6,7 and 8 only once.Write the greatest number possible with 8 in the ten thousands place
Saturday, June 18, 2016 by Lian

Math
Janet bought 7 paperweights and altogether it weighed 1.4 so how much do one weigh
Saturday, June 18, 2016 by Anonymous

Math
Two ships leave a lighthouse from opposite directions.The speed of ship A is 8 Km/h faster than ship B. at the end of 60 hours the two ships are 4320 km apart. Find the speed of two ships
Saturday, June 18, 2016 by Mathesh

math
If x= \frac{ \sqrt{a+2b} + \sqrt{a-2b} }{ \sqrt{a+2b} - \sqrt{a-2b} } Show that: bx^2-ax+b=0
Saturday, June 18, 2016 by raghav

math
if a=5-2\sqrt{6} then find the value of a^2+\frac{1}{a^2}
Saturday, June 18, 2016 by raghav

math
a garden 7m by 12m will be expanded by planting a border of flowers,the border will be of the same width around the entire garden and has an area of 92m
Saturday, June 18, 2016 by jane

math
If the zeroes of the quadratic polynomial x^2+(a+1)x+bare 1& -3 find a&b
Saturday, June 18, 2016 by preeti

math
Find the zeroes v^2+4root3v-15 & also verify relation b/w zeroes & its coefficient.
Saturday, June 18, 2016 by preeti

Math
The diagram Shows a right-angled triangle abc in which ab =12 cm and Ac=15 cm Show that the length of bc is 9 cm
Saturday, June 18, 2016 by Akilesh

math
still need help: Write an arithmetic sequence that has a common difference of 4 and the eighth term is 13. What is the first term? What is the 23rd term in the sequence
Saturday, June 18, 2016 by Randy

math
The sum of two numbers exceeds thrice the smaller by 2.if the difference between them is 19,find the numbers
Friday, June 17, 2016 by ekta

Math
If 6 drums of oil will heat 5 buildings for 3 days, how many days will 10 drums of oil last when heating 2 buildings? Is it 12.5 days?
Friday, June 17, 2016 by Gina

math
1. Examine the first four terms in each of the following number sequences: *2, 7, 12, 17 my formula x+5 *7, 21, 63, 189, 567 my formula x(2)+x *1000, 850, 700, 550 my formula x-150 * –10, –6, –2, 2 my formula x+4 For each sequence, what would be the 20th and ...
Friday, June 17, 2016 by cindy

math
How many possible points so that the x-coordinate an the y-coordinate are additive inverses of each other, and the differnce of the coordinates is 10.
Friday, June 17, 2016 by bob

Math
Given that tanè = -5 and è is in the 2nd quadrant, compute exactly: A. sin(è) B. cos(è) C. tan(2è)
Friday, June 17, 2016 by John

Math
A bushel is a unit of volume often used to measure dry, agriculture commodities and one bushel is approximately 32 L. A 1:50 scale model of a grain bin is capable of holding 0.112 bushels. How many bushels can the full size bin hold? The answer is 14,000 bushels, but I don'...
Friday, June 17, 2016 by Shayla

Math
A light pole of height 15 meter has a lamp hanging at its top . from a distance 12 meter from the base of the pole , a ball is thrown vertically upwards with velocity 5m/sec . find the rate at which the shadow of the ball on the earth moves away from the base of the pole after...
Friday, June 17, 2016 by Momen

Math (pre-celc 12)
I need to prove this identity: cot(x)+tan(x)=csc(x)sec(x) I get as adding them together, but then I get stuck.
Friday, June 17, 2016 by Jana

Math
In the NFL, a division consists of 4 teams, each of which plays each other team twice. Assume that in any game, either team is equally likely to win (and there are no ties). What is the probability that, at the end of the season, the division has neither a perfect team with 6 ...
Friday, June 17, 2016 by Bobby

Math (pre-celc 12)
I'm not sure how to get the final answer for this question I get stuck halfway thru. Simplify using sum and difference identities: cos((3pi/2)-x) I think the answer is supposed to be -sin(x) Thanks!
Friday, June 17, 2016 by Jana

Math
∆ABC has the points A(1, 7), B(-2, 2), and C(4, 2) as its vertices. The measure of the longest side of ∆ABC is units. ∆ABC is triangle. If ∆ABD is formed with the point D(1, 2) as its third vertex, then ∆ABD is triangle. The length of side AD is ...
Friday, June 17, 2016 by Lola

math
two thirds of a sum of money is two euro and twenty four cent.What is one quarter of the sum of money?
Friday, June 17, 2016 by Roxy

math
Determine the volume of a candle mould with a diameter of 7cm and height of 13 cm. Round your answer to the nearest 100 cubic centimeters.
Friday, June 17, 2016 by help

math models
A force of 19 newtons is applied on a cart of 2 kilograms, and it experiences a frictional force of 1.7 newtons. What is the acceleration of the cart
Friday, June 17, 2016 by Anonymous

Math
The sum of the ages of a father and his son is 62 years. 15 years ago, the father was 7 times as old as his son. How old is the son now?
Friday, June 17, 2016 by Saras

Math
Gerald reads 120 pages of a book in 4 days. If he always reads 6 more pages than the previous day,find the number of pages he reads on the first day.
Friday, June 17, 2016 by Hummers

Math
A circular copper wire of radius 7cm is bend to form a rectangle. If the breadth and the length of the rectangle are in the 4:7 respectively. What is the breadth of the rectangle?
Friday, June 17, 2016 by Rinku

Math
A circular copper wire of radius 7cm is bent to form a rectangle. If the breadth and the length of the rectangle are in the ratio 4:7 respectively. What is the breadth of the rectangle?
Friday, June 17, 2016 by Rinku

math
rationalize the denominator of: (4 sqrt3+5sqrt 2)/(sqrt48 +sqrt18) (5 +sqrt3)/(7-4 sqrt3)
Friday, June 17, 2016 by raghav

math
insert a rational number between following: 0.25 and 0.26 3.413and 4.314 4.13692 and 4.4568 sqrt3 and sqrt5
Friday, June 17, 2016 by raghav

math
Of the following integers, which is the closest approximation to ... Of the following, the closest approximation to [{198.27(.50120)}/2.02] ?
Friday, June 17, 2016 by tasreef

math
2/3-7/12+2/9
Friday, June 17, 2016 by simfly

Math
Find the measure of Angle 1 and 2 measure of angle 1 = x measure of angle 2 = x-6 the measure of angle 3 is a right angle which would be 90 degrees diagram looks like a T with another line coming from the upper left diagonally like from where the T the top line of the T and ...
Friday, June 17, 2016 by Gerry

math
The schematic of a rectangular patio is drawn 1/8 inch to a 1 foot. If the patio is 15 feet long, what is the measure of the patio's length on the schematic?
Friday, June 17, 2016 by Anonymous

math
at the beginning of the day, the dow jones index was at $10,287.56. At the end of the day it was at$10,005.23. What was the rate of change of the Dow Jones on this particular day? Express your answer as percentage and round to 2 decimal places.
Thursday, June 16, 2016 by nitachia

math
topic tree diagram. a box contain 6red and 4blue,5white balls.there balls are the bag one after the other without replacement find the prob of obtaining 1 first the same colour 2 first blue 2nd red,than white. 3. 1st red. 4different colours
Thursday, June 16, 2016 by Tebiowei

math
One pump fills a tank two times as fast as another pump. If the pumps work together they fill the tank in 18 minutes. How long does it take each pump working alone to fill the tank? mat
Thursday, June 16, 2016 by Anonymous

Math
Joe bought a television for $286.26, including tax. He made a down payment of$50.00 and paid the balance in 6 equal monthly payments. What was Joe's monthly payment for this television? A$41.04 B$39.37 C$44.38 D$31.04
Thursday, June 16, 2016 by Katie Hairston

MATH
110 MEMBER OF CLUB PLAY 1 GAME FO BA AND VO 20 PLAY FO AND BA 15 PLAY FO AND VO 26 PLAY BA AND VO x PLAY ALL 2x PLAY EAC
Thursday, June 16, 2016 by ABDULLAHI

math
A farm has a total of 30 goats and pigs. The number of goats is half the number of pigs. How many pigs are there?
Thursday, June 16, 2016 by Jordan

Math
Ken works for $18.00 an hour. If he works for 8 hours . How much would he earn? Thursday, June 16, 2016 by Kiara math What the perimeter of a triangle with side 5 cm and 9cm Thursday, June 16, 2016 by asca Math(Scale Factors and Scale Diagrams) Sarah's dad found a table hockey game with dimensions 9 1/4 inches by 4 15/16 inches. Unfortunately, this game was only 1/4 the size of the table top hockey game he wanted. Determine the dimensions of the table Sarah's dad wanted. Please help me with this, the ... Thursday, June 16, 2016 by Jenny math George saves 18% of his total gross weekly earnings from his 2 part-time jobs. He earns$6.25 per hour from one part-time job and $7.50 per hour from the other part-time job. George works a total of 40 hours between the two jobs each week. What additional information is needed... Thursday, June 16, 2016 by Anonymous math A certain baseball hit straight up in the air, is at height represented by: h(t) = 4 + 50t – 16t2 , where t is time in seconds after being hit and h(t) is in feet. The function is valid for t > 0, until the ball hits the ground. a) Sketch the graph of this function. b... Thursday, June 16, 2016 by hesse math what can ido to my home work, pleas, helme. it is pass by tomorrow and I so nervos, because I didn't now., my home work is about sequences., GIVEN: 1. 3n-5 2.3(2n-1) 3.-5 over are 4.5-n sq Thursday, June 16, 2016 by joneva math The widths of two similar rectangles are 16 cm and 14 cm. What is the ratio of their perimeters? Of their areas? Thursday, June 16, 2016 by john Math What is the difference between 1/7 and 4/7 ... shall it be 3/7 or -3/7 I am geeting really confused as 1-4 is -3 but i am not sure Thursday, June 16, 2016 by Santusht math what is the target possible 8- digit numbers with 7 in the ten thousands Thursday, June 16, 2016 by lanz juarez math Sam has two bags of nuts; one with 77 % peanuts, and the other with 29 % peanuts. To make a 9 lb bag of 44 % peanuts, how much of each should Sam use? Thursday, June 16, 2016 by angel math a 3 digit number which tens place is 2 more than the ones place and the hundreds place is 7. Thursday, June 16, 2016 by riza Math I am 4 digit number my hundreds digit is 5 less than my ones digit and my thousands digit is one half of my tens digit. What number am i? Thursday, June 16, 2016 by Raina Math If a isosceles triangle has one side with 52 degrees and another with 5x-6 are the other sides Thursday, June 16, 2016 by Matt Math I am 4 digit number my hundreds digit is 5 less than my ones digit and my thousands digit is one half of my tens digit. What number am i? Thursday, June 16, 2016 by Raina Math What is the difference between any two consecutive terms? Thursday, June 16, 2016 by Jecka math two similar brocks have corresponding edge of length 15cm and 25cm. find the ratio of their masses Thursday, June 16, 2016 by yamikani math what is dimension spheres tank with capacity of 1200 liters? Thursday, June 16, 2016 by reynaldo Math What is the circumference of the circle round to the nearest tenth and show all work and the area of the circle is 9.5m Wednesday, June 15, 2016 by Lori loseenem math a number with missing digits is given below.study the given clues and find out this number: 6_ _ _6 clues: a). the tens digit is 2 more than thee ones digit. b).the hundreds digit is 5 less than the tens digit. c).the thousands digit is 3 less than the hundreds digit. Wednesday, June 15, 2016 by aya corneto Math A recipe calls for 2 1/2 cups of chocolate chips to make a batch of five dozen (60) cookies. On average how many cups of chocolate chips would be in each cookie? I have tried everything and still can not get the answer Wednesday, June 15, 2016 by Chris Walley Math Father Armando the math teacher adds Bens and the Indians scores atop each other and gets these numbers. 1, 2, 6, 7, 10, 12 Also, go back for Seconds. Wednesday, June 15, 2016 by Bianca Math I am 3 digit number my hundreds digit is 4 times my ones digit and my tens digit is their difference. What number am i? Wednesday, June 15, 2016 by Raina Math Please Help Assignment Due The graph of the function f(X)= 4x^2 -17x-9 has two X intercepts. What is the value of the larger X intercept to one decimal place? Wednesday, June 15, 2016 by Jenny Math The formula A=l*w is in this formula ⏹=🔼*⏺ What other formulas in this form can you think of? Wednesday, June 15, 2016 by Anonymous Math Lesson is on using formulas A=l*w Create formulas for the following relationships. A. The relationship between the number of tires (not including spares) and the number of cars in a parking lot. B the relationship between the number of minutes to the number of days. Wednesday, June 15, 2016 by Cindy Math Please Help Assignment Due Today Ella wants to build a rectangular pen for her dogs with two distinct sections. The area of the enclosure can be represented by A= Xy and the total length of fencing can be represented by 3x + 2y = 60. If she had 60 ft of fencing to work with, determine the maximum area she can... Wednesday, June 15, 2016 by Jenny Math problem solving At the hardware store , you buy hammers for$ 30 a dozen. And sell them for \$ 3.50 each. What is the percent mark up for the hammers?
Wednesday, June 15, 2016 by Danielle