Saturday
August 27, 2016

# Homework Help: Math

## Recent Math Questions

Math
Area of an arc with diameter of 7cm and an angle of 60degrees
Monday, June 20, 2016 by val

math
Leo is looking down, from the roof of a building, at a dump truck that is parked on the road. The angle of depression to the front of the truck is , and the building is 37 m tall. What is the distance between the base of the building and the front of the truck?
Monday, June 20, 2016 by shade

math
Lucas is designing a flower garden in the shape of an isosceles right triangle. He has created a scale diagram. The lengths of the perpendicular sides in the scale diagram are 7 cm, and the hypotenuse of the real garden will be 3 m long. What is the area of the real garden?
Monday, June 20, 2016 by shade

Math
Three seta of lights blink after 6 seconds, 8 seconds and 12 seconds respectively. What is the least number of seconds it would take for the lights to blink together.
Monday, June 20, 2016 by Joanne

math
Lucas is designing a flower garden in the shape of an isosceles right triangle. He has created a scale diagram. The lengths of the perpendicular sides in the scale diagram are 7 cm, and the hypotenuse of the real garden will be 3 m long. What is the area of the real garden? A...
Monday, June 20, 2016 by shade

The Edmonton rush is one of nine teams that play in the national lacrosse league. The weights of the 2013 Edmonton rush players are shown. Weight in Lbs. 160. 170. 170. 175. 180 185. 188. 190. 190. 190 194. 195. 200. 200. 200 205. 205. 210. 210. 210 210. 215. 245. A.) Explain ...
Monday, June 20, 2016 by Courtney B.

math
DeWitt Company sells a kitchen set for $320. To promote July 4, DeWitt ran the following advertisement: Beginning each hour up to 4 hours we will mark down the kitchen set 8%. At the end of each hour, we will mark up the set 3%. Assume Ingrid Swenson buys the set 1 hour 30 ... Monday, June 20, 2016 by monica 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 Math, Please Help 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 Math(Please Help, Been Stuck On These For A Week) 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