Wednesday

October 7, 2015
**math**

7777 divided by 77
*Friday, July 31, 2015 by Anuj*

**Math**

Suppose x is an angle in the second quadrant such that cosx=-8/17, what is the value of tan(3x/2)?
*Friday, July 31, 2015 by Alexa*

**Math**

Please help with math question below: Express the triple angle formula of tangent (i.e. tan〖(3x)〗) in terms of tanx.
*Friday, July 31, 2015 by Alexa*

**Math**

Suppose a function f(x) has domain (-1,1). Find the domains of f((x+1)/(x-1))
*Friday, July 31, 2015 by Alexa*

**math**

A man spend 1/3 of his income on food, of the rest 1/4 on bills and 1/5 on miscellaneous things. Finally he left with Rs.1760. Find his income? a)4200 b)4600 c)4800) d)5200
*Friday, July 31, 2015 by mahesh*

**math**

-15+7
*Thursday, July 30, 2015 by Anonymous*

**math**

In a pseudopythagorean triangle, the sides are all integers and the sum of the square roots of the sides equals the square root of the third side. How many pseudopythagorean triangles are there. A. none B. 1 C. 2 D. more than 2 this is such a confusing question
*Thursday, July 30, 2015 by Ryan*

**math**

How many ounces of an alloy containing 30% gold on the world market must be added to 10 ounces of an alloy containing 5% to produce an alloy containing 20% gold?
*Thursday, July 30, 2015 by Anonymous*

**math**

there are 10 white socks and 6 black socks in a drawer. vic reaches into the drawer without looking and picks a white sock. he keeps the first sock out and reaches into the drawer again. to pick a second sock. what is the probability that the second sock vic selects will also ...
*Thursday, July 30, 2015 by Anonymous*

**math**

The two of us ordered a pizza whose area was the same as the area of a square in which the sum of the squares of the four sides plus the sum of the squares of the two diagonals is 400. The pizza's area was A. 50 B. 100 C. 150 D. 200
*Thursday, July 30, 2015 by Cody*

**Math**

You are given triangle ABC. AB=13,BC=15, and CA=14. Point D is on segment BC and CD=6. Point E is on segment BC such that CE>CD and ∠BAE=∠CAD. What is the length of BE?
*Thursday, July 30, 2015 by Alexa*

**Math**

the half life of a radioactive substance is one day. You have 100 grams. how much of the substance would be left after a week?
*Thursday, July 30, 2015 by Jo*

**math**

1cm=4miles. How many miles is 280cm^2?
*Thursday, July 30, 2015 by Seany*

**Math **

1cm=4miles. What is 280cm^2?
*Thursday, July 30, 2015 by Seany*

**math**

A farmer had 500 ducks and 300 chickens. He gave his sister 100 chickens and ducks. Later, the farmer bought 10 more ducks and 75 more chickens. As a result, the number of ducks decreased by 12% and the number of chickens increased by 15%. a) How many ducks did the farmer give...
*Thursday, July 30, 2015 by Ms Sue(Or anyone else)--HELP ME*

**Math**

In a group of m men, b men earn D dollars per week and the rest earn half that amount each. Represent the total number of dollars paid to these men in a week. P.S. Whenever i try solving this problem i get 3/2D(b+m) Could you kindly tell what i am doing wrong?
*Thursday, July 30, 2015 by Someone who needs help*

**Math **

(2x-1)^4 What is the coefficient of x^2?
*Thursday, July 30, 2015 by Seany*

**What did I did wrong MATH**

The ratio of number of one-dollar coins to the number of fifty-cent coins in a box was 3:4. Six one-dollar coins were removed and some fifty-cent coins if the same amount were added. The ratio of the number of one-dollar coins to the number of fifty-cent coins to the number of...
*Thursday, July 30, 2015 by Jackson*

**Math content exam**

Has anyone taken the Mathematics Content Exam 115 for Teacher's in the state of Illinois? Please give me tips or help. Thanks!
*Thursday, July 30, 2015 by Seany*

**math**

If 5^x = 7, then 5^x+2 = A. 9 B. 14 C. 49 D. 175 How is 5 to the x equal to 7 possible, and how do I solve this?
*Thursday, July 30, 2015 by Cody*

**math**

For how many different negative values of x is √x+2001 an integer? A) 42 B) 43 C) 44 D) 45 A lot to list out, any way to find it faster??
*Thursday, July 30, 2015 by Cody*

**math**

How many integers greater than 1 million and less than 4 million are squares of integers? A) 998 B) 999 C) 1000 D) 1998 Can you help and show me a faster way than listing it out!?
*Thursday, July 30, 2015 by Cody*

**math, hard**

If |a| = -a and |b| = -b, then a-b= A) |a| +|b| B) |a|-|b| C) -|a|+|b| D) -|a|-|b| I don't get this, if you square root any number, how does it become negative??
*Thursday, July 30, 2015 by Cody*

**math! VERY hard! **

You need 3 pounds of fruit for a fruit salad. You already have 3/4 pound apples and 1/3 pound grapes. Drag fruit to the box that you can buy so you will have exactly the right amount with no extra. the choices are: 1/2 2/3 1/8 3/4 5/8 you can use those more than once to get to...
*Thursday, July 30, 2015 by anon*

**6th grade math**

What is the greatest number of pictures each 2.5 and 3.5 inches that a photographer can print on an 8 inch by 10 inch paper?
*Thursday, July 30, 2015 by MJ*

**math**

1/5 of your art-supply money goes for brushes. If you also spend 1/2 of your money on paint, what fraction of your money will you have left?
*Thursday, July 30, 2015 by anon*

**math**

One-fifth of your art-supply money goes for brushes. If you also spend 12 of your money on paint, what fraction of your money will you have left?
*Thursday, July 30, 2015 by anon*

**Easy Math??**

Carol started from home on a trip averaging 30 miles per hour how fast must her mother drive to catch up to her in 3 hours if she leaves 30 minutes after Carol? Use an equation to solve your work. a.35 mph b.39 mph c.40 mph I heard that the answer is a, but I don't know ...
*Thursday, July 30, 2015 by Ryan*

**Math**

What is the value of sin2x given that sinx+cosx+tanx+cot⁡x+secx+cscx=7?
*Thursday, July 30, 2015 by Alecs*

**Math**

How many values of x satisfy the equation: sinx=x^2/(625π^2 )?
*Thursday, July 30, 2015 by Alexa*

**Math**

A pirate is on a hill looking at a building. The building is 400 feet tall. The angle of elevation from the pirate to the building is 4° and the angle of depression from the pirate to the bottom of the building is 2°. What is the shortest distance the pirate will need ...
*Thursday, July 30, 2015 by Alexa*

**math**

kari earns 101.25 dollars for 15 hours how many hours must she work to earn 459.00 dollars
*Thursday, July 30, 2015 by kari*

**Math**

A weight of 150 pounds is placed on a smooth plane surface which makes an angle of 35 degree with the horizontal. The weight is held by a string parallel to the surface and fastened at the top of the plane. Find the pull on the string.
*Thursday, July 30, 2015 by yasser*

**Math**

how do you solve this, its about rational expressions ?? 4 /X^2 – 4x+1 + 2/ x^2 -1
*Thursday, July 30, 2015 by Mike*

**math**

the product of two whole numbers is 48. find their greatest possible sum. what is the least sum.?
*Thursday, July 30, 2015 by jem*

**math**

if the area of the rectangle is 256x^4y^4-169c^4y^4 dm find the length if its worth (16x^2y^2) dm ?? Thankss :)
*Thursday, July 30, 2015 by Camz*

**Math**

A weight of 150 lbs is placed on a smooth plane inclined at an angle of 24° with the horizontal. What is the required force needed to prevent the weight from sliding down the plane?
*Thursday, July 30, 2015 by Alexa*

**Math**

While evaluating the sine of a particular angle, an absent minded student failed to notice that his calculator was not in the correct angular mode. He was very lucky to end up with the right answer. What are the two smallest possible values of x such that the sine of x degrees...
*Thursday, July 30, 2015 by Alecs*

**Math**

Suppose f(t^2+1)=t^4+5t^2+3. What is f(t^2-1)?
*Thursday, July 30, 2015 by Erikhelp*

**Math**

Suppose f(f(x))=x for all x for which f(x) is defined and f(0)=2003. Find all the roots of the equation f(x)=0
*Thursday, July 30, 2015 by Erikhelp*

**math**

I don't understand factoring. One of my homework questions asks for that. The question is "The area of a rectangular garden is given by the trinomial x to the 2nd power plus x -42. What are the possible dimensions of the rectangle? Use factoring.
*Thursday, July 30, 2015 by Barry*

**Math Important!**

Ozzie's Mother bought an assortment of greeting cards while she was at the bookstore. She bought twice as many birthday cards as anniversary cards. She bought 2 fewer anniversary cards than general greetings cards, but 2 more anniversary cards than get well cards. If she ...
*Thursday, July 30, 2015 by Sam*

**math**

Tangent are drawn to the circle x2 y2=12 at the points where it is met by the circle x2 y2-5x 3y-2=0
*Wednesday, July 29, 2015 by siddharth*

**Math**

How would you simplify this equation?? ((1/x)-(1/y))/(y^2-x^2)
*Wednesday, July 29, 2015 by Jess*

**math algebra**

Jo needs to know which of the following cannot be a prime number whenever p is a prime number greater than 2001. A. p-2 B. p+2 C. p+999 D. p+9990 Im stuck
*Wednesday, July 29, 2015 by Ben*

**Easy Math??**

The stock that Mr. Ames bought cost him $80 a share. The par value of the stock is $100. If the stock pays $6 a year in dividends, what rate of interest is Mr. Ames getting on his money? A.16 2/3% B.7 1/2% C.3% D.6% E.None of the above Personally, what made the problem ...
*Wednesday, July 29, 2015 by Ryan*

**Math**

1) Each side of a triangle is a different length. One side is 6, one side is more than 6, and one side is less than 6. The perimeter of the triangle could not be... a.13 b.18 c.22 d.24 2)Which of the following could not be the measures of two of the three angles in the same ...
*Wednesday, July 29, 2015 by Bell*

**math**

Jo needs to know which of the following cannot be a prime number whenever p is a prime number greater than 2001. A. p-2 B. p+2 C. p+999 D. p+9990
*Wednesday, July 29, 2015 by ben*

**math**

The teacher of a mathematics class has written up the final exam, but wants the questions to be random for each student. There are 28 students in the class, and the test has 100 questions. Each question has four possible answers. a. After reading carefully reading the scenario...
*Wednesday, July 29, 2015 by lana*

**math**

Eric is planning a 7-day resort vacation. He will play golf on four mornings. He also wants to play tennis but can only play tennis on days he does not play croquet. He will play croquet on any day immediately following a day that he plays golf. What is the greatest number of ...
*Wednesday, July 29, 2015 by Jackson*

**Math**

the length of a rectangle is three times of its width. if the length of the diagonal is 8 root 10cm then the area of the parameter of the rectangle ?
*Wednesday, July 29, 2015 by Ashu*

**rd. math**

Pl find out hcf using division method 180,252,576
*Wednesday, July 29, 2015 by Raj*

**Math**

Drew is twice as old as his sister joy.The quotient of their ages five years ago is seven less than Joy's present age. Find out how old they are at present.
*Wednesday, July 29, 2015 by Alex*

**math**

Carlos joins a DVD club.The membership cost$49 per year. Each DVD cost$4. supose carlos buys 28DVDs this year . How much money will he make?
*Wednesday, July 29, 2015 by kayla*

**Math**

Mr Lee spent 1/12 of his money on a.belt and 1/4 of it on books. He had $240 left. How much did he spend on the books?
*Wednesday, July 29, 2015 by Angeline*

**Math**

I really need help to find the answer to this question below. If possible, please show every step of the way in a detailed form so i can understand, it takes me a while to fully comprehend whats being done. Thank you so much. QUESTION: the data shown model the growth of a ...
*Tuesday, July 28, 2015 by PLEASE HELPP*

**Math**

I really need help to find the answer to this question below. If possible, please show every step of the way in a detailed form so i can understand, it takes me a while to fully comprehend whats being done. Thank you so much. QUESTION: the data shown model the growth of a ...
*Tuesday, July 28, 2015 by Yoyo*

**Math **

The roots of x^2-999999x-9999=0 and ? are additive intergers A. x^2+999999x-9999=0 B. x^2-999999x+9999=0 C. x^2+999999x+9999=0 D. x^2-9999x-999999=0
*Tuesday, July 28, 2015 by ben*

**math**

There are ? different ways to represent the square root of 1000000 in the form a square root b, where a and b are positive integers. One way is 1 square root 1000000 A. 2 B. 4 C. 12 D. 16 About this question, i have no idea what they are trying to ask....
*Tuesday, July 28, 2015 by Josh*

**math**

The roots of x^2-999999x-9999=0 and ? are additive intergers A. x^2+999999x-9999=0 B. x^2-999999x+9999=0 C. x^2+999999x+9999=0 D. x^2-9999x-999999=0
*Tuesday, July 28, 2015 by Ben*

**math**

When n= ?, one term in the expansion of (2x^2+3x+2)^n is 1024. A. 4 B. 8 C. 9 D. 10
*Tuesday, July 28, 2015 by Ben*

**math**

1-2-3-4+...+1997-1998+1999-2000= A) -2000 B) -1000 C) -1 D) 0
*Tuesday, July 28, 2015 by Murr*

**math**

If a, b, c, d are 4 different numbers, then the line joining R(-a,b) and S(-c,-d) has the same slope as the line joining T(a,-d) and A) (c,b) B) (-c,b) C) (c,-b) D) (-c,-b)
*Tuesday, July 28, 2015 by Murr*

**Math **

how would you solve this with substitution? -3x – 2y = 16 -x + y = -8
*Tuesday, July 28, 2015 by Alessandra *

**Math**

The best free throw shooter on a basketball team has a 60% chance of making the 1st shot when shooting 2 free throws. If he makes the 1st shot, he has an 80% chance of making the 2nd. If he misses the 1st shot, he only has a 40% chance of making the 2nd shot. What are the ...
*Tuesday, July 28, 2015 by Gina*

**math**

How do you find the area and perimeter of your room floor?
*Tuesday, July 28, 2015 by lily*

**math**

please solve x- 11/21= -10/21
*Tuesday, July 28, 2015 by Anonymous*

**Math**

I tried so hard for the question below and I couldn't figure it out. Please show some working out. Thanks 10 owners of pedigree dogs will enter the arena to parade their dogs by walking around a circular track. 3 dogs cannot get along together but their is no problem if ...
*Tuesday, July 28, 2015 by G*

**Math **

A package of 12 hex bolts and 10 anchor bolts weighs 7 pounds. A second package of 5 hex bolts and 15 anchor bolts weighs 4 pounds. A single hex bolt weighs ___________pounds, rounded to one decimal place.
*Monday, July 27, 2015 by Amy*

**Math **

Two acid solutions are to be mixed together. Solution A is 30% acid by volume. Solution B is 70% acid by volume. The 800 mL mixture is 54% acid by volume. The amount of Solution A, rounded to the nearest milliliter, is ____________mL.
*Monday, July 27, 2015 by Amy*

**math**

I really need help to find the answer to this question below. If possible, please show every step of the way in a detailed form so i can understand, it takes me a while to fully comprehend whats being done. Thank you so much. QUESTION: the data shown model the growth of a ...
*Monday, July 27, 2015 by sarah*

**math**

The dimensions of a box are 9 by 16 by radical 25. Its volume is a. 60 b. 3600 c. √(50) d. √(60) please explain
*Monday, July 27, 2015 by Anonymous*

**math**

The square of a certain whole number N is N squared.If 60 is a factor of N squared ,its possible that xis not a factor of N squared.
*Monday, July 27, 2015 by Anonymous*

**Math**

Suppose the stock of Microsoft increases in value by $5 per share. If all other Dow stock prices remain unchanged, how does this affect the DJIA? a) 37.80 points up b) 30.24 points up c) 22.68 points up
*Monday, July 27, 2015 by Jessica*

**Math**

Suppose the rate of inflation this year is 4.5%. What is the percentage decrease in the buying power of a dollar? a) 4.3% b) 4.7% c) None of the above.
*Monday, July 27, 2015 by Jessica*

**Math**

1. Suppose the buying power of the dollar decreases by 6.7% this year. What is the rate of inflation this year? a) 7.6% b) 7.2% c) None of the above.
*Monday, July 27, 2015 by Jessica*

**math**

The product of 2000 negative numbers could equal. A. -200 B. -1 C. 0 D. pi
*Monday, July 27, 2015 by hila*

**math**

The product of the digits of 2000 is 0. How many integers y, 2000<y<2100, also have 0 as the product of their digits? A. 19 B. 20 C. 99 D. 100
*Monday, July 27, 2015 by hila*

**Math**

There's a question I've been having difficulty solving, and I would really appreciate if you can show he steps to how I can achieve the answer. QUESTION: The numbers 1, 4, 10, 20, and 35 are called tetrahedral numbers because they are related to a four sided shape ...
*Monday, July 27, 2015 by Sarah*

**Math**

One solution contains 25% as much water as alcohol and another solution contains 5 times as much water as alcohol. How many gallons of each solution must be mixed in order to obtain 7 gallons of the new solution which contains as much water as alcohol? Please help. I don't...
*Monday, July 27, 2015 by Ben*

**Math**

The amounts by weight of gold, silver and lead in three alloys of these metals are in the ratio 1:5:3 in the first alloy, 2:3:4 in the second and 5:2:2 in the third. How many kg of the first alloy must be used to obtain 10kg of an alloy containing equal amounts by weight of ...
*Monday, July 27, 2015 by Anne B.*

**math**

In a class election,the votes of the two candidates were in the ratio 4:5. If there were 45 students in the class, how many did each get?
*Monday, July 27, 2015 by jas*

**math**

how to construct a quadrilateral MATH where MT bisects M. AH is perpendicular bisector of MT. M is 60 degrees. A is 120 degrees. MH is 8cm
*Monday, July 27, 2015 by Roch*

**math**

construct a triangle ABC such that AB =BC=4.7 cm and <B=75 DEGREE .MEASURE <A AND <C
*Monday, July 27, 2015 by SUNITA*

**Math**

From the top of a tree the angle of depression of a boat is 30degree if the height of a tree is 36m above the sea level calculate the horizontal distance of the boat from the bottom of a tree?
*Monday, July 27, 2015 by Charito*

**math**

Evaluate(2+j4)*(-3-j4) and express in polar coordinate fform
*Monday, July 27, 2015 by saurabh*

**math **

Solve (1) TTX=2 (2) 3x+2=5x+7-2x (3) 6x+2-4x=5+2x-3
*Sunday, July 26, 2015 by nakul*

**math **

Equations solve by matrix method (1) x+y+z=3 (2) x+2y+3z=4 (3) 2x+4y+9z=6
*Sunday, July 26, 2015 by nakul*

**math **

Equations solve by matrix method (1) x-y+3z=2 (2) 2x+y+2z=2 (3) -2x-2y+z=3
*Sunday, July 26, 2015 by nakul*

**math**

solve -8/15 a = 9/10
*Sunday, July 26, 2015 by Carter*

**math**

solve 7/10 d = 21/20
*Sunday, July 26, 2015 by jalen*

**math- partial fractions**

how do you i do the partial fraction for 1/(s^2)(s^2 +2s +3)
*Sunday, July 26, 2015 by Anonymous*

**Math**

I am doing estimating Standard deviation of grouped data. I have done all the sum freg 60/ midpoint 2580/ x bar is 43 for all/ and total with x bar is 10260. Can you explain how to get the variance and sq root from these. I know that you have to fregx(mid-xbar)square2 and ...
*Sunday, July 26, 2015 by Mary Ann *

**Math**

What is the greatest prime you must consider to test whether 7356 is prime?
*Sunday, July 26, 2015 by Kim*

**Math 156**

What is the greatest prime you must consider to test whether 7356 is prime? Thanks for the help.
*Sunday, July 26, 2015 by Bella*

**Math Functions**

Write two equations to represent the same exponential function with a y-intercept of 5 and an asymptote at y=3 . Investigate whether other exponential functions have the same properties. Use the transformations to explain your observations.
*Sunday, July 26, 2015 by Jacob *

**math**

How many license plates can be made if each should have 3 letters of the English alphabet with no letter repeated ? what will be the answer if the letters can be repeated?
*Sunday, July 26, 2015 by nakul*

**MAth 109**

The formula d= square root of 3h/2 models the distance, d, in miles, that a person h feet high can see to the horizon. If the pool deck on a cruise ship is 80' above the water, how far can passengers on the pool deck see? Write the answer in simplified radical form. Then ...
*Sunday, July 26, 2015 by Zsa Zsa*

**Math**

A manufacturing company is thinking of launching a new product. The company expects to sell $950,000 of the new product in the first year and $1,500,000 each year thereafter. Direct costs including labor and materials will be 45% of sales. Indirect incremental costs are ...
*Sunday, July 26, 2015 by Priscilla*

**ssc..math**

A tree 30 feet tall casts a shadow 7 feet at the same time that a flagpole casts a shadow 5 feet .Find the height of the flagpole .
*Sunday, July 26, 2015 by jonalyn*