Monday

October 24, 2016
**Math precalculus**

The revenue for a sale of x books at $80 each is given by R(x) = 80x. The commission for a revenue of x dollars is given by C(x) = 0.30x. Express the commission as a function of the number of books sold

*Sunday, October 2, 2016 by Maria*

**math**

write each fraction as a decimal and each decimal as a fraction in simplest form. 1.8/20 2.0.64 3.3/100

*Sunday, October 2, 2016 by mathew*

**6th grade math**

During snack time at preschool, the teacher divided 3/5 of a gallon of milk evenly between 2 students. how much milk did each student get?

*Sunday, October 2, 2016 by Catherine *

**math**

Whats the area of 182!!😔😞😞😣;

*Sunday, October 2, 2016 by charlotte thompson*

**Math**

There are 42 goats and chickens in the farm.there are 114 legs altogether.how many ducks are there?

*Sunday, October 2, 2016 by Anonymous*

**Math graphs,dot,ven**

I did a bar graph I think it is easier than dot and ven diagram. Am I correct because ven diagram there are no similarities and dot is to long.the problem asks as follows. Display the data using a dot plot,bar graph or vennot diagram.decide which data displays best for ...

*Sunday, October 2, 2016 by Angel*

**math**

S = 2πr2 + 2πrh solve for h H=S-2πr/2πr?

*Sunday, October 2, 2016 by James Hockery*

**math**

Find the equation of the line tangent to the curve 2(x^2+y^2)^2=25(x^2+y^2) at a point (3,-1) written in the form y = mx+b

*Sunday, October 2, 2016 by Judith*

**math**

John's age is seventeen years less than twice Isabella's age. Together, the sum of their ages is 40. How old is John? I did x+(2x-17)=40 I got x=19 but it keeps saying i got it wrong can you please help.

*Sunday, October 2, 2016 by James Hockery*

**Math**

If a football player gains 40 yards on a play, but on the next play, he loses 10 yards, what would his total yards be for the game if he ran for another 60 yards? What did you count by to label the units on your number line ( make number line)

*Sunday, October 2, 2016 by Genia*

**math (caculus limits)**

If for every ε > 0 we can find a δ > 0 such that if 0 < |x − a| < δ then |f(x) − L| < ε, then we can say lim x→a f(x) = L. true or false?

*Sunday, October 2, 2016 by earl*

**math**

What is the smallest of three consecutive integers if the sum of the smaller two integers is equal to 177 less than four times the largest? Note: Consecutive integers are integers that come one after the other. For example: -3, -2 and -1 or 14, 15 and 16. Therefore, if the ...

*Sunday, October 2, 2016 by James Hockery*

**Math (Limits)**

What is the limit of g(x)=x as x approaches pi? Would it just be pi??

*Sunday, October 2, 2016 by Ray*

**Incidence Rate Math -**

A certain disease has an incidence rate of 0.6%. If the false negative rate is 5% and the false positive rate is 2%, compute the probability that a person who tests positive actually has the disease.

*Sunday, October 2, 2016 by Crooklyn*

**Math**

Wei-Men make a square quilt that has an area of 100 square feet. It has twenty five square blocks each the same size. What is the length of each side of a block?

*Sunday, October 2, 2016 by Elise*

**math**

Write a compound inequality that each graph could represent

*Sunday, October 2, 2016 by alex*

**Math (Domain and range)**

Evaluate the function f(x)={9x+5, x<0 {9x+6, x>(or equal to)0 Determine its domain and range using interval notation? I believe the domain is (-infinity,infinity) but how would I find the range?

*Sunday, October 2, 2016 by Ray*

**Math**

Mr. Kole has 30 students in his class he has twice as many girls as boys what is the ratio of boys to the class

*Sunday, October 2, 2016 by Ali *

**Math**

2cups of water to 3 cups of flour give equivalent ratios

*Sunday, October 2, 2016 by Raheem*

**Math **

Claudia is arranging seating for her sorority's fall banquet. he has to sit 7 seniors, 5 juniors, 9 sophomores and 3 freshmen at the head banquet table. if members of the same class must sit together, in how ways can she do this? 2x7!7!x 2x5!5! x2x9!9! x 2x3!3! 50803200 x ...

*Sunday, October 2, 2016 by Irene *

**Math **

Matt must take a new code for the lock to his deer lease. It must consist of 3 letters, followed by 5 digits, then 2 letter and 1 more digit. The first letter must be a vowel and the middle digit of the first 5 must be even. If no letter or digit can be repeated, how may code ...

*Sunday, October 2, 2016 by Irene *

**Math**

determine the value(s) of k which a quadratic equation x^2+kx+9=0 will have. a) two equal real roots b) 2 distinct roots I tried to find the discriminant but couldn't get the right answer

*Sunday, October 2, 2016 by Anonymous*

**math**

Solve the system of equations by finding a row echelon form for the augmented matrix. x-2y+z=8 2x+y-3z=-9 -3x+y+3z=5

*Sunday, October 2, 2016 by zain*

**Math**

Consider the function g(x)=e^(2x+4) −4. Giving your answer in interval notation, find the domain of g^(−1)(x).

*Sunday, October 2, 2016 by Anonymous*

**Math **

In examination, 60 % of candidates failed, the number of candidates who passed was 500. Find the number that failed. Solution :60 /100*500 =300

*Sunday, October 2, 2016 by Yaro *

**Math**

rectangle abcd picture above has length of 6 units and a width of 5 units. point d is the ordered pair. find the coordinates of a b c

*Sunday, October 2, 2016 by Jay*

**Math**

Match the inequality to its graph. Graph A. less than or equal to -1 Graph B. less than 3 Graph C. less than 1 Graph D. less than or equal to -3 7. 4y + 3 *less than or equal to* y+6 8. -2y > 2 9. y over 3 < -1 10. 3y *less than or equal to* 2y +3 Not sure? Help

*Sunday, October 2, 2016 by Amber*

**math (stats)**

Enter your answers as decimals or fractions, rather than percents. In a family with 7 children what is the probability of having 4 boys and then 3 girls, in that order? (Exclude multiple births and assume all outcomes are equally likely). Preview In a family with 7 children, ...

*Sunday, October 2, 2016 by b*

**math (stats)**

According to Masterfoods, the company that manufactures M&M’s, 12% of peanut M&M’s are brown, 15% are yellow, 12% are red, 23% are blue, 23% are orange and 15% are green. [Round your answers to three decimal places, for example: 0.123] Compute the probability that a ...

*Sunday, October 2, 2016 by b*

**math**

2) The lifetimes of light bulbs of a particular type are normally distributed with a mean of 370 hours and a standard deviation of 5 hours. What percentage of bulbs has lifetimes that lie within 1 standard deviation of the mean on either side?

*Sunday, October 2, 2016 by John*

**math**

A circular pizza has a radius of x cm. a.write an expression for the area of the pizza? b write an expression for the area of a pizza with radius that is 5 cm greater c. How much greater is the second area? write the difference as a simplified expression?

*Sunday, October 2, 2016 by Anonymous*

**Math **

In examination, 60 % of candidates failed, the number of candidates who passed was 500. Find the number that failed.

*Sunday, October 2, 2016 by Yaro *

**Math**

Sarah has to go to her brother's baseball tournament that lasts for 4 days. She eats two-thirds of a hotdog at every game. He plays 2 games a day. Define your variables, write a function rule, find the domain and range, and tell whether the data is discrete of continuous. ...

*Sunday, October 2, 2016 by Lynn*

**Math**

The hydrocarbon emissions at idling speed in parts per million (ppm) for automobiles of 1980 and 1990 are given for 20 randomly selected cars. 1980 models: a) Construct a dot plot

*Sunday, October 2, 2016 by Lawko*

**Math**

Find the roots for the given equstion p^4+m^4=0

*Sunday, October 2, 2016 by Neel*

**Math **

Ravi bought a leather Coat costing Rs. 900 at Rs.990 after paying the VAT charged on the coat.

*Sunday, October 2, 2016 by ARvind Kumar *

**Math wok**

A large cooler contains the following drinks: 11 lemonades, 6 Sprites, 14 Cokes, and 7 root beers. You randomly pick two cans, one at a time (without replacement). Compute the following probabilities. What is the probability that you get either two root beers or two lemonades...

*Sunday, October 2, 2016 by Anonymous*

**Math**

524 :I am the smallest digit.:I am 3 more than the digit in the hundres :I lessthan the digit in the tens plce.

*Sunday, October 2, 2016 by Johana*

**Math**

937 : I am 2 more rhan the digit in the tens place.:I am 4 more than the digit in the ones place.I the smallest digit.

*Sunday, October 2, 2016 by Johana*

**Math 😢😢😢😢😢 Help**

Suppose a jar contains 5 red marbles and 33 blue marbles. If you reach in the jar and pull out 2 marbles at random, find the probability that both are red.

*Sunday, October 2, 2016 by Adam*

**Math (Perpendicular equation)**

Write the equation for the line through the given point and perpendicular to the given line. Point: (4/5,9/10) Line: 6x-4y=0 I tried doing this problem and got 0=-4/6x-y+43/30 as the perpendicular equation. Is this correct?

*Sunday, October 2, 2016 by Ray*

**math**

p = 2q+3 p+q = 9

*Sunday, October 2, 2016 by niya*

**Finite math and probability **

A jar contains 9 red marbles numbered 1 to 9 and 7 blue marbles numbered 1 to 7. A marble is drawn at random from the jar. Find the probability that the marble is blue or even-numbered. I had 1/7

*Sunday, October 2, 2016 by Anonymous*

**Math**

determine the value(s) of k which the equation x^2+kx+9=0 will have a) two real roots b) 2 distinct roots I tried to find the discriminant but I didn't get the right answer.

*Sunday, October 2, 2016 by fatima*

**Math**

3) Erik wants to form 4-digit integers using only the digits 1, 2, 3, and 4. He is allowed to repeat digits. What is the probability that he forms a 4-digit integer where at least one digit repeats? Express your answer as a common fraction.

*Saturday, October 1, 2016 by Anonymous*

**Math**

NO CALCULATOR! 1) Find the last two digits of the number 11^2016 .

*Saturday, October 1, 2016 by Help pls*

**Math**

Suppose that an isosceles triangle has two sides of length a and one side of length c. 1) Find the area of the triangle in terms of a and c. Simplify as much as you can.

*Saturday, October 1, 2016 by Help *

**Math**

A property dealer charges 2℅ of the commission from a buyer or a seller of property . If the seller paid 20000 ruppes as commission for purchasing the flat . What was the value of the flat?

*Saturday, October 1, 2016 by Har!@#$%^& Krishna*

**Math**

In triangle ABC, a = 12, b = 10, and c = 9 . Find the measure of the largest angle in triangle ABC.

*Saturday, October 1, 2016 by Help *

**Math (Secant Lines)**

Consider the function f(x)=sqrt(x) and the point P(4,2) on the graph of f? -Consider the graph f with secant lines passing through p(4,2) and Q(x,f(x)) for x-values 1, 3, and 5. -Find the slope of each secant line -Use the results to estimate the slope of the tangent line to ...

*Saturday, October 1, 2016 by Ray*

**Math Idk?**

In a number guessing game. You ask a person to guess a number from one 1 to 10. If the person makes a random guess, what is the probability their guess will be less than 8?

*Saturday, October 1, 2016 by Anonymous*

**College math**

A bag contains 9 white 7yellow marbles,8 green marbles. If one marble is drawn from the bag then replaced, what is the probability of drawing a white marble then a green marble?

*Saturday, October 1, 2016 by James*

**Math (Condensing logarithmic expression)**

Write the expression as the logarithm of a single quantity 3[(ln x) -2ln(x^2+1)]+2 ln 5?

*Saturday, October 1, 2016 by Ray*

**ACT math**

the price of a hat is $12. The price of a scarf is $14. I spent $128 on 10 items. How many hats did I buy?

*Saturday, October 1, 2016 by Because*

**Math Help! **

Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 4 17 20 41 Female 15 7 19 41 Total 19 24 39 82 If one student is chosen at random, Find the probability that the student did NOT get an "B"

*Saturday, October 1, 2016 by Anonymous*

**Math Algrebra **

Please Help! I don't know what the equation is and Google isn't helping!!! Please tell me the equation and how you could get the answer of each? 1) A student is the 35th counted from the front end and the 40th counted from the back end. How many students are in a line...

*Saturday, October 1, 2016 by Anonymous*

**Math**

Indicate the type of units that could be associated with measuring circumference. Circle all that apply. A.ft B.m² C.Liters. D.Meters E.Grams F.in.² G. Miles H.Kilometers I.Cubic Centimeters

*Saturday, October 1, 2016 by Sammy*

**Math**

In a survey of students about favorite sports the results include 23 who like tennis 24 like football 7 like tennis and football 20 like football and baseball 5 like all three sports 9 like no sports. How many students like only tennis and football? How many like only tennis ...

*Saturday, October 1, 2016 by Jean*

**Math **

Michael has 7 green, 3 red and 9 blue M&Ms. If he selects 5 M&Ms: a. In how many different ways can he select at least 2 blue M&Ms? c(19,2)= 171 b.In how many ways can he select exactly one blue and one red M&M? 1b x 1r x 5g c(9,1) x c(3,1) x c(7,5)= 567 c.In how many ways can...

*Saturday, October 1, 2016 by Irene *

**Tax Accounting**

Can someone explain how to do the math on this? Tax Deductions on Stolen Items: During 2012, someone broke into Jacob's personal residence and took the following items: Asset Adjusted Basis Fair Market Value (FMV) before Fair Market Value (FMV) after Insurance Recovery ...

*Saturday, October 1, 2016 by Patte*

**math **

approximate all zeros and extrema to the nearest hundredth. how many zeros, if any, are imaginary. -x^4+2x^2+x-4. Are there no zeros?

*Saturday, October 1, 2016 by anonymous*

**Math**

Two mechanics worked on a car. The first mechanic worked for 10 hours and the second mechanic worked for 15 hours. Together they charged $2500. What was the rate charged per hour by each mechanic if the sum of the two rates was $195 per hour?

*Saturday, October 1, 2016 by Nae*

**math**

uncle gives baby 25 dollars on her first birthday, 50dollars on second doubling act each year. I need help with an equation

*Saturday, October 1, 2016 by liz*

**MATH**

Hi, sorry to bother you. but can you please help me with this problem z=log(e^(5y)) Thanks!

*Saturday, October 1, 2016 by molly*

**Math**

Find a polynomial function of degree 7 with -2 as a zero of multiplicity 3, 0 as a zero of multiplicity 3, and 2 as a zero of multiplicity 1. f(x)= Gracias

*Saturday, October 1, 2016 by Bethany*

**Math**

Find a polynomial function of degree 4 with-2 as a zero of multiplicity 3 and 0 as a zero of multiplicity 1. f(x)= Gracias

*Saturday, October 1, 2016 by Bethany*

**Math**

70*20*20

*Saturday, October 1, 2016 by Andrew*

**MATH**

The family Mutillidae consists of over 3,000 species of wasps in which females are completely wingless and produce one of the most painful insect stings. Although not fatal to humans, the pain from the sting can last more than thirty minutes leaving its victims incapacitated ...

*Saturday, October 1, 2016 by HELP PLZZ*

**Math**

how many 3 letter combinations can you make with the letters,l,g,and f ?

*Saturday, October 1, 2016 by Salma *

**math**

what is the lower limit of 25-29

*Saturday, October 1, 2016 by hammad*

**math**

Y is directly proportional to the square of x. Find the percentage increase in value of y when x is doubled

*Saturday, October 1, 2016 by ashiana*

**Math Help! **

Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 17 5 2 24 Female 7 11 12 30 Total 24 16 14 54 If one student was chosen at random, find the probability that the student was female.

*Saturday, October 1, 2016 by Anonymous*

**Math Help! **

Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 17 5 2 24 Female 7 11 12 30 Total 24 16 14 54 If one student was chosen at random, find the probability that the student was female.

*Saturday, October 1, 2016 by Anonymous*

**math condense logs**

write the expression as the logarithm of a single quantity 3[ln x-2 ln(x^2+1)]+2 ln 5

*Saturday, October 1, 2016 by Jonas*

**Math (Expanding logarithmic expression)**

Use the properties of logarithms to expand the logarithmic function ln[(x^2+1)(x-1)] Would this be the correct answer? ln[x^3-x^2+x-1] I can't seem to expand it any further than that.

*Saturday, October 1, 2016 by Ray*

**Math**

I buy 12mangoes 3were rotten .how many mangoes will be rotten if i buy100mangoes.

*Saturday, October 1, 2016 by Sanjana*

**Math (Finding points of intersection)**

Find the points of intersections of these equations? x^2+y^2=1 -x+y+1 This is what I've done so far, I isolated the y's out y= +/- sqrt(1-x^2) y=x+1 But I am stuck on how to make them together in order to find the point of intersection, any help is greatly appreciated!

*Saturday, October 1, 2016 by Ray*

**MATH HELP ASAP**

Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 18 16 8 42 Female 7 17 9 33 Total 25 33 17 75 If one student is chosen at random, Find the probability that the student was NOT a female that got a "A"

*Saturday, October 1, 2016 by Amanda *

**MATH 125 help**

Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 4 17 20 41 Female 15 7 19 41 Total 19 24 39 82 If one student is chosen at random, Find the probability that the student did NOT get an "B"

*Saturday, October 1, 2016 by Amanda *

**Math Help ASAP SETS & Probability **

Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 2 10 17 29 Female 7 15 4 26 Total 9 25 21 55 If one student was chosen at random, find the probability that the student got a C.

*Saturday, October 1, 2016 by Amanda *

**Math**

A boat starts out at 20km/h in direction 30 degrees. However, the boat is blown off course by a 12km/h wind blowing from 80 degrees. What direction does the boat now travel in and how far does it travel in one hour?

*Saturday, October 1, 2016 by Felix*

**Math **

In number and it's our food value are equal if you subtract two from the number the new number and it's absolute value are not equal what do you know about the number what is a possible number that satisfies these conditions

*Friday, September 30, 2016 by Lucas Hernandez*

**PROBABILITY MATH HELP!!!!! DICE**

A die is rolled. Find the probability of the given event. The number showing is an even number; The probability is :

*Friday, September 30, 2016 by Sarah*

** Sets & Probability math Help please**

A group of people were asked if they had run a red light in the last year. 206 responded "yes", and 184 responded "no". Find the probability that if a person is chosen at random, they have run a red light in the last year.

*Friday, September 30, 2016 by Sarah*

**PROBABILITY MATH HELP!!!!!**

A die is rolled. Find the probability of the given event. (a) The number showing is a 5; The probability is? (b) The number showing is an even number; The probability is ? (c) The number showing is greater than 5; The probability is?

*Friday, September 30, 2016 by Sarah*

**Math (Trig Review)**

Evaluate the expression without using a calculator (Make a sketch of a right triangle) tan(arccot 2) Thanks in advance! I'm trying to refresh my memory of these kinds of problems and I'm having trouble on how to solve this problem

*Friday, September 30, 2016 by Ray*

**Math**

Let's propose a hypothetical situation where you plan to apply your newly acquired analytical skills to the end of the baseball season. The Dodgers most recent win percentage is 0.569. Assume that the team that they are playing and home field advantage is completely random...

*Friday, September 30, 2016 by Reply me as well*

**math**

The family Mutillidae consists of over 3,000 species of wasps in which females are completely wingless and produce one of the most painful insect stings. Although not fatal to humans, the pain from the sting can last more than thirty minutes leaving its victims incapacitated ...

*Friday, September 30, 2016 by Malbari*

**Math**

A metal cylindrical cannister is 1' 3"long and has a diameter of 4 inches. What is the total surface area of the cylinder?

*Friday, September 30, 2016 by Katrina*

**Math**

Find all numbers $r$ for which the system of congruences: x == r mod 6 x == 9 mod 20 x == 4 mod 45 has a solution.

*Friday, September 30, 2016 by Anonymous*

**math**

5/6+1/3=n

*Friday, September 30, 2016 by sweetie turno*

**math**

3/5+1/2=n

*Friday, September 30, 2016 by sweetie turno*

**math**

4 digit number > 2000. the sum of its digits is 10. only the thousands place and the hundreds place are odd numbers. the number in the ones place double the digit in the hundreds place. what number will it be?

*Friday, September 30, 2016 by jd*

**Math**

The temperature outside marys school is 17°c at midday by midnight the temperature has fallen by 33 °c what is the temperature at midnight

*Friday, September 30, 2016 by Rio*

**math**

Mr. Brown has 35 students in his class and wants to make teams of 5 students. How many teams can he make?

*Friday, September 30, 2016 by Mr. Brown*

**math**

subtract 3x-12/4x^2-8*2x^2-4/9x-36

*Friday, September 30, 2016 by stephen*

**Math**

Write 39/9 as a whole or mixed number in simplest from. A. 4 1/3 B. 3 9/39 C. 9 1/3 D. 5 1/4

*Friday, September 30, 2016 by Ashlie*

**Math**

If a red light flashes every 3 seconds, a blue light flashes every 4 seconds and a blue light flashes every 5 seconds and they all flashed together at midnight when would be the next time they all flash together?

*Friday, September 30, 2016 by CHLOE*

**Math**

On Aug 14th, One of our Partner's ( Compuville ) cash book showed a debit balance of $4,000.00. His bank statement showed a balance of $4,270.00. On comparison the following were found: * check issued amounting to $2,500.00 has not been cashed * The bank rejected checks ...

*Friday, September 30, 2016 by Natalie*

**math**

what is the prime factorization of 72 please help me

*Friday, September 30, 2016 by foxie/wolfie*