Saturday
February 25, 2017

Homework Help: Math

Branches of Math

Recent Math Questions

Math Trigonometry
An airplane is flying between two towns at an altitude of 8km. One town is to the west of the plane and the other is to the east. The angle of depression to one town in de34grees and to the other town is 49degrees. What is the distance between the two towns
Thursday, December 29, 2016 by Anonymous

Math
A particle is moving along the x-axis so that its position at t>=0 is given by s(t)=(t)ln(5t). Find the acceleration of the particle when the velocity is first zero.
Thursday, December 29, 2016 by Ke$ha

math
If Larry worked 411/2 hours this week and spent 1/3 of his time hauling material, how much actual time did Larry spend hauling
Thursday, December 29, 2016 by chris

Math
A particle moves along the x-axis so that at any time t, measured in seconds, its position is given by s(t) = 4sin(t) - cos(2t), measured in feet. What is the acceleration of the particle at time t = 0 seconds?
Thursday, December 29, 2016 by Ke$ha

Math (SAT)
The function f is defined by f(x)=2x^3-x^2+kx-6, where k is a constant. In the xy-plane, the graph of f intersects the x-axis at the three points (3,0), (-1/2,0), and (q,0). What is the value of k?
Thursday, December 29, 2016 by Hayley

Math
Whats x to the 3 y to the 6 divided by x to the 3 and y to the 6?
Thursday, December 29, 2016 by Anonymous

Math
write the percent as a decimal and a fraction 365% Too confusing
Thursday, December 29, 2016 by Alex

Math
In a candy bar, 108 calories are from sugar. There are 240 calories in the candy bar. What percent of the calories are from sugar? I think the answer is 60.
Thursday, December 29, 2016 by Alex

Math
When u multiply a whole number by 10 ,what is always true about the ones place in the product
Thursday, December 29, 2016 by Sepriia

math
Gwen needs to add 2/3 of a cup of flour to a recipe. She only has a 1/3-cup measure. How many scoops of flour does Gwen need to add?
Thursday, December 29, 2016 by Chloe

Math
100-100 /100-100 =2 ans.
Thursday, December 29, 2016 by Robin jatav

Math
A copper solid cylinder of radius 14cm and height 10cm is melted and recast into cylindrical wire of diameter 4mm.find the length of the copper wire
Thursday, December 29, 2016 by Anonymous

math
How to solve 3x+2y=4 2x-3y=7
Thursday, December 29, 2016 by saad

math
A Clock is set right at 10am.the clock gains 10 minutes in 24hours.what will be true time when the clock indicates 3pm the following day.
Thursday, December 29, 2016 by Rehan

SAT Math
The function w is defined by w(x)=6+3x. If 4⋅ w(z)=96, what is the value of z? So is w(x)=w(z)?
Thursday, December 29, 2016 by Kay

Math
An open top box with a square base has a volume of 30ft^3. The total surface area of the box is? a) S.A=x^2-60/x b) S.A=x^2+60/x c) S.A=x^2-120/x d) S.A=x^2+120/x
Wednesday, December 28, 2016 by Syndra

math, algebra
Members at a yoga school pay $7 per class plus a one-time $120 membership fee. Non-members pay $11 per class. How many classes would a member have to take to save money compared to taking classes as a non-member? I'm struggling with this problem a bit, and so are my friends. I...
Wednesday, December 28, 2016 by Anna

Math
A freight train travels 260 km in the same time a passenger train travels 320 km. If the passenger train averages 15km/hour faster than the freight train, what is the average speed of the freight?
Wednesday, December 28, 2016 by Conscious

Math
By selling a watch for rupees 475, jatin suffer a loss of 5percent. At what price should he sell the watch so as to gain 12 percent
Wednesday, December 28, 2016 by Anonymous

Math(A.P)
The fourth term of an A.P is equal to 3 times the first term and the seventh term exceeds twice the third term by 2. The first term and the common difference are:
Wednesday, December 28, 2016 by Ana......

Math
Estimate a range for the sum:7.6+2.3+6.7
Wednesday, December 28, 2016 by Hussain

math
A clock is set right at 10 AM. The clock gains 10 minutes in 24 hours. what will be the true time when the clock indicates 3 PM the following day ?
Wednesday, December 28, 2016 by mohan

math
Value oftan76.25degree
Wednesday, December 28, 2016 by dolly

Math(A.P)
A person was appointed in the pay scale of $700-40-1500. Find in how many years he will reach maximum of the scale?
Wednesday, December 28, 2016 by Ana......

Math
A man goes 7m east and then 24m to south. Find his distance from the starting point
Wednesday, December 28, 2016 by Jon

Math
Interest of $22.05 was earned in three months on a balance of $1960. What is the interest rate per annum earned on that account? P.s please explain how you solved it.
Wednesday, December 28, 2016 by Carol

SAT Math Question?
Lindsey and Stephen work at a factory. Lindsey can complete one full job in three hours, and Stephen can complete the same job in five hours. If Lindsey and Stephen work together on the job for one hour, then how long, in minutes, will it take Stephen to finish the job himself?
Wednesday, December 28, 2016 by Kay

Math
I saw MRP of rs 15.50 of biscuit. What does it mean?
Wednesday, December 28, 2016 by Anonymous

math
A circle has centre(5,12) and its tangent to the line with equation 2x-y+3=0. Wtite equation of the cirle
Wednesday, December 28, 2016 by donald

Math
the sum of two numbers is 30. the difference of their squares is 180. find the two numbers by elimination method
Wednesday, December 28, 2016 by Anonymous

Math
Something travels 25 meters in one minute, what does it travel in kilometers in one minute.
Wednesday, December 28, 2016 by Ashley

Math
Simplest form 5/6 + 7/8=
Tuesday, December 27, 2016 by Isaiah

Math
You have the number 1,000,000,000 (one billion). What is one hundredth of that number?
Tuesday, December 27, 2016 by Ashley

SAT Math
All of the students who took chemistry at Groveton High School last year were juniors or seniors, as shown in the table below. If 80% of the students who took chemistry passed, then what fraction of the students in the combined junior and senior classes took chemistry? Class ...
Tuesday, December 27, 2016 by Kay

Math
Which of the following expressions should be placed in each set of parentheses below in order to solve the equation by completing the square? x2+6x+___=15+____ a.3/2 b.3 c.6 d.9
Tuesday, December 27, 2016 by Ashley

Math
A clock is set right at 10 AM. The clock gains 10 minutes in 24 hours. What will be the true time when the clock indicates 3 PM the following day?
Tuesday, December 27, 2016 by Kishan Anand

Math
. Mark pays $4.68 for 0.72 of a pound of almonds. Based on this cost ratio, which statement is true? A. Mark pays a rate of $3.37 per pound of almonds. B. Mark pays a rate of $3.96 per pound of almonds. C. Mark pays a rate of $5.40 per pound of almonds. D. Mark pays a rate of...
Tuesday, December 27, 2016 by Juan Nita 53

Math
4 students did work for me making $5 an hour working 6 hours a day for 12 weeks. 1 student worked for 4 weeks and one student quit after 8 weeks. 2 students worked 12 weeks. What is the total amount for all students?
Tuesday, December 27, 2016 by Anonymous

Math
19. A ten-foot-long board is cut into three pieces. The second piece is half as long as the first. The third piece is 4 feet longer than the second. How long is the first piece? A. 1 feet B. 2 feet C. 2 feet D. 3 feet The answer is given by the teacher to us, but I want to ...
Tuesday, December 27, 2016 by Juan Nita 19

Math
The table below shows the temperature (in °F) t hours after midnight in Phoenix on March 15. The table shows values of this function recorded every two hours. Estimate the value of T′(10). Give units in your answer. What is the meaning of T′(10)? t 0 2 4 6 8 10 12 14 T 73...
Tuesday, December 27, 2016 by Ke$ha

math
Assume that you make a down payment of $2000, and you finance the remainder with a five-year loan at 6.9 percent APR. 20092 total cost-2000 down payment=18092 interest=2.24$ What is the equation I need to use to figure out the monthly payments per $100?
Tuesday, December 27, 2016 by crissy

Math
Find the number of years needed to realize a total interest of $5000 if the principal saved is 10000 at a simple interest rate of 10%
Tuesday, December 27, 2016 by Anonymous

Math
Juliya is 5 years younger than her brother,Tom.how old are they if the product of their ages is 126?
Tuesday, December 27, 2016 by R

Math
A water rocket was launched from the ground, with an initial velocity of 32m/s. The rocket achieved a height of 44 m after 2 s of flight. The rocket was in the air for 6 s. Determine the quadratic functionthat models the height of the rocket over time.
Tuesday, December 27, 2016 by Evelyn

math
A car moving with the speed of 22 decmetre per second find the diametre of the wheel if it performs 700 revolutions per second
Tuesday, December 27, 2016 by Anonymous

Math
Rohan have some books and some tables.if he puts 9 books into each table he will have two tables left vacant .if he puts 6 books on each table he will have 3 books left over .find the no. Of books
Tuesday, December 27, 2016 by Praneet thakur

Math
What ocean is found at 40 degree south and 160 degree west
Tuesday, December 27, 2016 by Vvt

math
1.Elizabeth planned to make 6 pans of apple crisp for the day, using extra tart granny smith apples-just like her grandmother had. But after peeling, coring, and slicing she had a major problem: she only had 10 cups of apple slices. it was getting late and she needed to get ...
Tuesday, December 27, 2016 by rwr

Math
A class has 30 boys and 25 girls. what is the percentage of boys in the class?
Tuesday, December 27, 2016 by Math

Math
Help!!! determine the slope of the graph x^2=ln(xy) at point (1,e)
Tuesday, December 27, 2016 by Ke$ha

math
how do you find 30% of 500 without calculator? also how would you find 0.5% of 3200 without calculator? is there a formula? i don't know where to start. i know 30/100 would be 3/10 and 0.5 is 1/2
Monday, December 26, 2016 by amaan

math
how do you find 30% of 500 without calculator? also how would you find 0.5% of 3200 without calculator? is there a formula? i don't know where to start. i know 30/100 would be 3/10 and 0.5 is 1/2
Monday, December 26, 2016 by amaan

Math
Rohan have some books and some tables.If he puts 9 books into each table he will have two tables left vacant. if he puts 6 books on each table he will have 3 books left over. find the number of books?
Monday, December 26, 2016 by Sanni kumar

Math
HELP DERIVATIVES!!!!!!!!!!!!! if h(x)=f[f(x)] use the tables for f and f' to find the value of h'(1) X f(x) f'(x) 1 3 2 2 1 5 3 6 7
Monday, December 26, 2016 by Ke$ha

MATH
1. -2v - 7 = 23
Monday, December 26, 2016 by please help!!

Math
Which of the following ratios is not equivalent to the other two?
Monday, December 26, 2016 by Anonymous

math
A boy has rs728 in denomination of rs 2 notes, rs 5 notes and rs 10 notes in the ratio of 3:2:4, respectively. What is the total number of notes he has? (A)104 (B)127 (C)100 (D)117
Monday, December 26, 2016 by vk

MATH
if Log10^a=4 what is a
Monday, December 26, 2016 by YOUNG FAITH

Math
The difference of two numbers is 4. Three Times the smaller number is 4 more than twice the larger number. Find the numbers.
Monday, December 26, 2016 by Manish

Math
7. A student has received scores of 88, 82, and 84 on three quizzes. If tests count twice as much as quizzes, what is the lowest score the student can get on the next test to achieve an average score of at least 70? A. 13 B. 48 C. 70 D. 96 The correct answer is B, but I would ...
Monday, December 26, 2016 by Juan Nita 3

Math
Prove that (cos2A)÷ ( 1+sin2A) = (cotA -1) ÷ (cotA +1)
Monday, December 26, 2016 by Ismail Abdullah

Math
Roberto's puppy weighs 4.5 pounds at the end of May. During June and July the puppy weighed 18.63 pounds. How much did Roberto's puppy weigh at the end of July? I thought about about dividing 18.63 by 2 and hopefully subtract to get 4.5
Sunday, December 25, 2016 by Nini

Math
29. Which of the following expressions should be placed in each set of parentheses below in order to solve the equation by completing the square? A. B. 3 C. 6 D. 9 The correct answer is D, but I need to learn how to do it and get the right answer. Thanks in advance.
Sunday, December 25, 2016 by Juan Nita 2

Math
26. If , what is ? A. B. 5 C. D. 3 The answer for this question is C. I need to learn exactly how to solve it (step by step) so I can do it on an exam. Thank you.
Sunday, December 25, 2016 by Juan Nita

Math
which is a rule that describes the translation of a point form (4 -8) to (7 -10)? (x,y) --> (x + 3, y - 2) (x,y) --> (x + 3, y + 2)** (x,y) --> (x - 3, y - 2) (x,y) --> (x - 3, y + 2)
Sunday, December 25, 2016 by CONFUSED!

Math
the ordered pairs (2, -21) and (5, -45) are solutions to which of the following equations? y = -8x - 5 y = -8x + 5** y = 8x - 5 y = 8x + 5
Sunday, December 25, 2016 by HELP!

Math
Write 0.583(repeating on 3)as a rational number. Please explain this is complicated
Sunday, December 25, 2016 by Complicated

math-integrating factor
dy/dx - y/x = 0 I got 1/x, but I am not sure if this is right or not.
Sunday, December 25, 2016 by richard

Math
The integral of cot^4cosec^2xdx
Sunday, December 25, 2016 by Trixy

Math
P and Q are two observation posts on the same horizontal ground as the foot R of a vertical pole RT. P is 2.5km south of R. Q is east of R and on a bearing of 065° from P. The angle of elevation of T from P is 40°. Calculate, the angle of elevation of T from Q.
Sunday, December 25, 2016 by Thompson

math
ab and ac are tangents to a circle with centre o. if angle bac is equal to 40 degree, find angle abc and angle acb.
Sunday, December 25, 2016 by sha

math
A long wire of some length is cut into small pieces of 216 cm, leaves a small piece of length of 89 cm. if this part were cut into equal pieces each of 18 cm, the length of the of the leftover wire would be:
Sunday, December 25, 2016 by abc

Math
Find the simple interest on 8,500 rd from 12th October,1999 to 6th march 2,000 at per annum
Sunday, December 25, 2016 by Nikhil

Math
There will be 240 seats on the lawn for graduation. Show all the ways you can make equal rows of chairs if there are at least 5 rows.
Saturday, December 24, 2016 by Daniel

math
F(x, y) represents a velocity field of a fluid over a surface S defined by z = 6 − 3x − 2y. If the magnitude of the velocity in the direction of the unit normal vector, n̂, on S is 3z⁄√14, compute the flux of F(x, y) over the surface S in the first octant oriented ...
Saturday, December 24, 2016 by NEED HELP!!!

Math
Two combines are able to harvest 320 acres of crops in a certain amount of time. How many acres will (a)3, (b)4, (c)6 and (d)7 combines harvest if they work at the same rate for this amount of time?
Saturday, December 24, 2016 by Nina

MATH
given the regression line y=42-3x what number of units are expected to increase in y if x is decreased by 2 units. a)2 b)4 c)6 d)8
Saturday, December 24, 2016 by Ana....

math
if a person buy a book rs 36 the available on discount 40 % find the original price
Saturday, December 24, 2016 by zafar

Math
The lower limit of 25-29 is
Saturday, December 24, 2016 by Hamza

math
The radius of the sphere is 10 units. What is the approximate volume of the sphere? Use π = 3.14 and round to the nearest whole cubic units
Friday, December 23, 2016 by bre

Math
Dylan met his goal today of completing 85% of his field goal attempts. He made 51 field goal attempts. How many attempts has he made this season
Friday, December 23, 2016 by Catherine

math
Will, micah and sue went to dinner. Will paid 1/3 of the dinner bill. Micah and Sue paid in the ratio of 2:5. If Sue paid $6. more than Will, how much did the dinner cost ?
Friday, December 23, 2016 by casey

Pre-calc Math
A tree on a hillside casts a shadow c = 210 ft down the hill. If the angle of inclination of the hillside is b = 21° to the horizontal and the angle of elevation of the sun is a = 51°, find the height of the tree. (Round your answer to the nearest foot.) ________ft
Friday, December 23, 2016 by Anthony

Pre-calc Math
The path of a satellite orbiting the earth causes the satellite to pass directly over two tracking stations A and B, which are 95 mi apart. When the satellite is on one side of the two stations, the angles of elevation at A and B are measured to be 87.0° and 84.2°, ...
Friday, December 23, 2016 by Anthony

Pre-calc Math
Use the Law of Sines to solve for all possible triangles that satisfy the given conditions. (If an answer does not exist, enter DNE. Round your answers to one decimal place. Below, enter your answers so that ∠B1 is smaller than ∠B2.) a = 78, b = 109, ∠A = 24° Find : ∠...
Friday, December 23, 2016 by Anthony

Math (Problem Solving)
Sasha took in a car loan with a maturity of 5 years in which the first payment was on December 2016. Right after paying the first month on December 15, she made an advance payment for two (2) months and he intends to pay extra month every two months. In addition, she also ...
Friday, December 23, 2016 by Clint

SAT Math
If m percent of 50 is equal to 20 percent of n, then what is the value of m/n? Thank you!
Friday, December 23, 2016 by Kay

math
0º≤A≤90º and 3tan2A = 2tanA + 1
Thursday, December 22, 2016 by Anonymous

SAT Math Question?
Which of the following accurately defines all possible values of p-q if 15≤p≤30 and 7≤q≤19? The answer is -4≤(p-q)≤23, but I'm not sure how. Thank you!
Thursday, December 22, 2016 by Kay

math
x+y+√z=148 x+√y+z=82 √x+y+z=98 find x,y,z. Please give full solution and how to find with complete logic.
Thursday, December 22, 2016 by Muhammad Shaudddin

Math
If a person buy a book for ₹36 which is available on 40% discount off the original price what original price of book
Thursday, December 22, 2016 by Upmanyu

math help
Find the unit vector perpendicular to each of the vectors 2i+j+k and i-j+2k?
Thursday, December 22, 2016 by mis

Math
What are two mixed numbers so that the sum is 7 2/4 and the difference is 5
Thursday, December 22, 2016 by Nathan

math
sasha used 55% of her savings to buy a game. She has $135 remaining. How much was her savings before buying the game?
Thursday, December 22, 2016 by indira

help math
1.Write the ratio in the simplest form 16:24 1:2 4:3*** 3:4 2:3 2.Solve the following proportion p/6 =7/8 p=5.25*** p=8 p-10.5 p=42 3.James has a model helicopter. The model is 8 inches long and 7 inches wide. The actual helicopter is 56 inches long. What is the helicopter's ...
Thursday, December 22, 2016 by rain

math
What is the recursive rule for an=2n+11? a1=13;an=an−1+2 a1=13;an=an−1+11 a1=2;an=an−1+11 a1=11;an=an−1+2
Thursday, December 22, 2016 by Jay

math
arrange smallest to largest 3/4,2/3,5/9,5/6
Thursday, December 22, 2016 by william

math
What is 3 times the quotient of n divided by 5?
Thursday, December 22, 2016 by jalysa

math
if tan(a+b)=2/3 and tan(a-b)=2/5 then find the value of tan2b.
Thursday, December 22, 2016 by Mandeep lamichhane

math
When 100 is added to a number , the result is 50 more than 3 times the number. Find the number
Thursday, December 22, 2016 by SABIR Hussain

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