Friday

October 9, 2015
**Math**

What is the square root of 23 subtracted from square root of 37 divided by square root of 23 added to square root of 37??
*Sunday, August 30, 2015 by Ruby*

**math**

Question1: find the least perfect squared number that is divisible by 12, 16,20 and 24. Question2: a gardener with 5770 plants to arrange them such that the number of rows of plants equals the number of plants in each row. When he does so,he discovers that the number of plants...
*Sunday, August 30, 2015 by noor*

**Math**

The sum of age of asha and musa is 50 years.If ten years ago the age of musa was twice of asha find their present age
*Sunday, August 30, 2015 by Emaculate*

**Math**

Kevin is riding a bike with a 1.5 feet diameter. If the tire makes 100 rotations, how far has Sherry traveled? don't tell me the answer show me how you can find the answer?
*Sunday, August 30, 2015 by Taylor*

**Math**

Input are 24,22,0,2,4 rule is x=1/2x-2 what is output?
*Sunday, August 30, 2015 by Semtic*

**Math**

Example input are x=24,22,0,2,4 and the rule is y=1/2x-2 what are output?
*Sunday, August 30, 2015 by Sandile*

**math**

Let f(t) = Q0at = Q0(1 + r)t. f(7) = 75.94 and f(9) = 91.89 (a) Find the base, a. (Round your answer to two decimal place.) a = I honestly have no idea how to approach these problems. I wrote out the different equations: 75.94 = Q0a^7 and 91.89 = Q0a^9 but I don't know ...
*Sunday, August 30, 2015 by Stella*

**math calculus**

In the year 2005, a picture supposedly painted by a famous artist some time after 1815 but before 1865 contains 95 percent of its carbon-14 (half-life 5730 years). Approximately how old is the painting? In years
*Sunday, August 30, 2015 by Urgent help*

**math**

Two trains leave the station at the same time, one heading west and the other east. The westbound train travels at 75 miles per hour. The eastbound train travels at 55 miles per hour. How long will it take for the two trains to be 182 miles apart? Do not do any rounding. I ...
*Saturday, August 29, 2015 by help*

**math**

In the year 2005, a picture supposedly painted by a famous artist some time after 1815 but before 1865 contains 95 percent of its carbon-14 (half-life 5730 years). Approximately how old is the painting? years
*Saturday, August 29, 2015 by Kaustubh *

**math**

Gus is the self-employed owner at four paws pet supply. His estimated annual earnings are $43,280.00 and he expects to pay 18% of this amount in income tax. What will be his quarterly estimated tax payment for the second quarter
*Saturday, August 29, 2015 by Debra *

**Math**

This question is really stressing me out. I don't even know where to start. The question is: The Northern Tier bicycle tour route from Anacortes, Washington, to Bar Harbor, Maine, is 4,264.5 miles long. How many more revolutions over the entire route will a 16 inch ...
*Saturday, August 29, 2015 by Jules*

**Math**

The concrete for a sidewalk is being poured outside the perimeter of a new subdivision, which is a 280 ft. by 720 ft. rectangle. The building code requires that the sidewalk be 5 feet wide and 8 inches deep. How many cubic yards of concrete will need to be poured? math: ...
*Saturday, August 29, 2015 by Maria*

**math**

Let f(t) = Q0at = Q0(1 + r)t. f(7) = 75.94 and f(9) = 91.89 (a) Find the base, a. (Round your answer to two decimal place.) a = (b) Find the percentage growth rate, r. (Round your answer to the nearest percent.) r = % I honestly have no idea how to approach these problems. I ...
*Saturday, August 29, 2015 by Stella*

**Math**

Problem 3) Lilly collects data on a sample of 40 high school students to evaluate whether the proportion of female high school students who take advanced math courses in high school varies depending upon whether they have been raised primarily by their father or by both their ...
*Saturday, August 29, 2015 by Anonymous*

**Math**

the area of a square is equal to one less than one-half its perimeter. How long is each side? (A=s squared and P=4s, where s represents the side length of the square)
*Saturday, August 29, 2015 by Julia*

**math**

P= 12e^(-0.02t) What is the growth rate? I thought it would be -1.98% because I punched in the e^-0.02 part and got .98 something and then that minus 1 is r so I got -1.98.
*Saturday, August 29, 2015 by Stella*

**Math**

simplify -27 x^4 a^5 UNDER THE SQUARE ROOT SYMBOL THAT IS CUBED
*Saturday, August 29, 2015 by Love*

**math**

A hydraulic plunger has a 12 cm diameter and a force of 350 kN acts on it. What is the pressure exerted on the plunger?
*Saturday, August 29, 2015 by jay*

**Math**

How could you rewrite the expression (-3+5)+8+(-1) using the Associative Property of Addition? A. -3-8+(5+1) B. (-3+(-1))+(5+8) C. -3+(5+8)+(-1) D. 5+8+3+1 Is the answer C? Thank you
*Saturday, August 29, 2015 by Nancy*

**Math (Pre-calculus)**

The Fiedler family has up to $130,000 to invest. They decide that they want to have at least $40,000 invested in stable bonds yielding 5.5% and that no more than $60,000 should be invested in more volatile bonds yielding 11%. How much should they invest in each type of bond to...
*Saturday, August 29, 2015 by ELVIA*

**Math (Pre-calculus)**

An artist is creating a mosaic that cannot be larger than the space allotted which is 4 feet tall and 6 feet wide. The mosaic must be at least 3 feet tall and 5 feet wide. The tiles in the mosaic have words written on them and the artist ants the words to all be horizontal in ...
*Saturday, August 29, 2015 by ELVIA*

**Math**

y-4=4x+3y=-(9-x) What is the value of xy?
*Saturday, August 29, 2015 by Steven*

**math**

how many liters of distilled water must be added to 80 liters of 60% acid solution to obtain a 50 % acid solution?
*Saturday, August 29, 2015 by pau*

**Math**

[(64 - 4) - 6] / 6 Is the answer 9 I am not sure and if it is how?
*Saturday, August 29, 2015 by Casey*

**Math**

Question: 1 The product of two positive numbers is 15876 and the large one is 9 times the other. Find the numbers. Question:2 Th sum of the squares of two positive whole numbers is 794. If one of the numbers is 13 , find the other.
*Saturday, August 29, 2015 by Noor*

**Math**

5x/3+y=c 2y=c-4x x+y=6 What is c? I've tried substituting y as x-6 however I'm still not getting it.
*Saturday, August 29, 2015 by Steven*

**business math**

Calculators cost the manufacturer $2.16 each to produce. If a markup of $2.16 is added to the cost,whatbis the selling price
*Friday, August 28, 2015 by debra*

**Math (Ms.Sue)**

10. Solve this inequality: 8z + 3 – 2z < 51 A. z < 14 B. z < 9 C. z < 8 D. z < 5.4 8z + 3 - 2z < 51 6z + 3 - < 51 - 3 - 3 6z/6 < 48/6 z < 8 Am I correct?
*Friday, August 28, 2015 by Brooklyn *

**math**

why did airhead eat the dollar he brought to school
*Friday, August 28, 2015 by ela*

**Math**

The odds of rolling two dice and the sum being greater than 9 are 6 to 30. What is the probability that the sum of two rolled dice is less than or equal to 9? I got 1/5 because its greater? help.
*Friday, August 28, 2015 by Jacqueline *

**Math**

the odds in favor of an earthquake are 7 to 1. what is probability that an earthquake will occur? So is it 1/7 ? im confused
*Friday, August 28, 2015 by Jacqueline *

**math**

Julia is offered a job selling advertising for two different companies. Company A offers a base salary of $30,000 per year plus a year-end bonus equal to 3% of her total sales. Company B offers a base salary of $25,000 per year plus a year-end bonus equal to 5% of her total ...
*Friday, August 28, 2015 by anthony nichols*

**Math (Ms.Sue)**

. The Main Street Cinema holds 1,356 people. Last Saturday night, they were sold out for two showings of Super Alien 5. There was a special price of $5 for every seat for each showing. How much money did the theater take in that night? A. $10,888 B. $13,...
*Friday, August 28, 2015 by Brooklyn *

**Math**

if the probability that an identified hurricane will make a direct hit on a certain stretch of beach is 0.20, what are the odds against a direct hit? 1 : 0.20 I :19 i think its like this way?
*Friday, August 28, 2015 by jacqueline *

**Math**

A lottery game has balls numbered through 19. What is the probability of selecting an even numbered ball or a 4 ?
*Friday, August 28, 2015 by jacqueline *

**Math **

Simplify by writing each fraction in lowest terms: X^2-y^2/(x-y)^2 My work: X^2-y^2/(x-y)^2 =X^2-y^2/(x-y)(x-y) =X^2-y^2/x^2-2x2y-y^2 I don't know what to do next.
*Friday, August 28, 2015 by Anonymous *

**Math**

x^-5 * x^7= x^5 can someone explain why and check if it is correct
*Friday, August 28, 2015 by Jake*

**MATH**

PROVE THAT sin3Asin6A+sinAsin2A/sin3Acos6A+sinAcos2A
*Friday, August 28, 2015 by VALENTINE*

**math**

A town has a population of 2000 people at time t = 0. In each of the following cases, write a formula for the population, P, of the town as a function of year t. (a) The population increases by 60 people per year. I thought it would be P= 2000 (1.03)^t (b) The population ...
*Friday, August 28, 2015 by Natalie*

**Math**

Looking to find the missing digit for each statement true. The number 874_ is divisible by 4. Please help how to solve
*Friday, August 28, 2015 by Cyle*

**Math**

An airplane is flying at an airspeed of 500 km/hr in a wind blowing at 50 km/hr toward the southeast. In what direction should the plane head to end up going due east? (Round your answer to two decimal places.)What is the airplane's speed relative to the ground? (Round ...
*Friday, August 28, 2015 by Kristen*

**6 grade math**

Erin buys a bag of peanuts that weighs of 3/4 of a pound. Later that week, the bag is 2/3 full. How much does the bag of peanuts weigh now?
*Thursday, August 27, 2015 by Aria*

**Math**

Ronnie misses the school bus 1 out of every 30 school days. He sets up the proportion 1/30=180/x to predict how many days he will miss the bus in the 180-day school year. What is Ronnies error?
*Thursday, August 27, 2015 by Brooke*

**math**

lola is placing appetizers on plates. she has 63 spring rolls and 84 cheese cubes. she wants to include both appetizers on each plate. each plate must have the same numbers of spring rolls and cheese cubes. what is the greatest number of plates she can make using all of the ...
*Thursday, August 27, 2015 by jason*

**Math**

An airline know that,on average the probability that a passenger will not show up for a flight is 6%.If an airplane is fully booked and holds 300 passengers,how many seats are expected to be empty?If the airline overbooked the flight by 10 passengers,about how many passengers ...
*Thursday, August 27, 2015 by Brooke*

**math**

if about 32,680 kilobytes of memory is still available how many more pictures can they take
*Thursday, August 27, 2015 by julie*

**Math**

Consider the functions in the figure below. Find the coordinates of C in terms of b. So there are two functions. There is the y=x^2 u-shape and then a line in the middle of it with points (0,b) and (1,1) in that order from left to right. Farther to the left of point (0,b) is ...
*Thursday, August 27, 2015 by Natalie*

**pre-calculus**

h(t)=15t + 1200 is a function that models the motion of a mountain climber. h(t) is his height above sea level at time t in minutes. 1a) the coefficient on t is 15. what does it tell you about the motion of the mountain climber? 1b) what does it tell you about the graph of h(t...
*Thursday, August 27, 2015 by d*

**Math**

A pilot flew to Montreal and back . The average speed going was 320 mph , and the average speed returning was 480 mph. Find the distance to Montreal if the total flying time was 5 hours.
*Thursday, August 27, 2015 by norde*

**Math**

On average it takes Miguel 45 minutes to compete his math assignments and 30 minutes to complete his science assignments. If he had 24 math assignments this grading period , what was his total minutes spent on math ?
*Thursday, August 27, 2015 by AnnaChavez*

**Math**

In the question: a rational number plus an irrational number will be ____ a. irrational b real c. rational d. A and B I know it is irrational but would it also be real since irrational numbers are real? Thanks....
*Thursday, August 27, 2015 by Brandi*

**Math**

What is the probability of rolling two dice and getting 3 and a 6? and could you explain how you would get the answer?
*Thursday, August 27, 2015 by Taylor*

**math**

For tax purposes, you may have to report the value of your assets, such as cars or refrigerators. The value you report drops with time. "Straight-line depreciation" assumes that the value is a linear function of time. If a $1020 refrigerator depreciates completely in...
*Thursday, August 27, 2015 by Natalie*

**Math**

If there was 66% off the whole store and you wanted to by a couch and a dinning room table made of glass Couch:600 Room table glass:7,000 How much would you pay
*Thursday, August 27, 2015 by Nashly*

**Math**

What is the cube of 8? A. 512 B. 24 C. 64 D. 2 C?
*Thursday, August 27, 2015 by Brooklyn *

**Math**

A recipe for punch calls for 4 cups on lemonade for every 6 quarts of fruit juice. How many quarts of fruit juice should elly use if she has already added 10 cups of lemonade
*Thursday, August 27, 2015 by George *

**4th grade math**

Tell how u could use a number line to determine which of two number is greater
*Thursday, August 27, 2015 by booda*

**math**

the garden has fencing around the perimeter and has a partition down the center. The length of the garden is 30 ft and the entire length of fencing used is 37 yards. How long is the partition in feet?
*Thursday, August 27, 2015 by Anonymous*

**Math**

During a track meet Kelly throws the shotput 51 feet, 50 feet,and 58 feet. Write an expression that represents the length of her average throw in feet. Evaluate the expression.
*Thursday, August 27, 2015 by Valerie *

**math**

Part A: Solve the inequality for x and explain if the solution is reasonable or not. Part B: Explain how each piece of the inequality corresponds with the situation. If the inequality is incorrect, explain why that/those part(s) of the inequality is/are incorrect.
*Thursday, August 27, 2015 by alonzo*

**math**

a box has a surface area of 184 sq in give the dimensions it could have for its length width and height hint find three areas that add up to 92 square inches
*Thursday, August 27, 2015 by Broham*

**math**

Chicken was on sale for $7.95 per pound. Laurie bought small package that weighed 0.8 pound. How much did Laurie pay for the chicken?
*Thursday, August 27, 2015 by sarah*

**MATH**

MY MATH PROBLEM SAID FOR ME TO CHANGE 3/4 INTO A DECIMAL. MY ANSWER IS 0.336 AM i CORRECT.
*Thursday, August 27, 2015 by Barny*

**Math**

a lottery game has balls numbered 1 through 19. What is the probability of selecting an even numbered ball or a 4? Its hard one please anyone know how solve?
*Thursday, August 27, 2015 by jacqueline*

**math**

at a track meet with 135 participants, 25 participate in jumping event, 1/5 of these jumpers are female, and 1/3 of the the total participants are female. What is the probability that a participant chosen at random is a jumper, given that the person is a female? Please help?
*Thursday, August 27, 2015 by jacqueline*

**math**

3 3/4 as a decimal is 0.366. Am I correct.
*Thursday, August 27, 2015 by tete*

**math**

6/3 as a decimal is 0.622. am i correct
*Thursday, August 27, 2015 by SELAH*

**MATH**

iS 1/4 as a decimal 0.4. am I correct.
*Thursday, August 27, 2015 by SELAH*

**math**

the square root of 144 is 12 am im correct
*Thursday, August 27, 2015 by crankman*

**Math**

Mr. Kole has 30 students in his class. He has twice as many girls as boys. What is the ratio of boys to total students? 1:3 1:2 2:3 2:1
*Thursday, August 27, 2015 by *Kayla **

**Math**

My math question is to write 5.6 in simplest form. My answer is 5 2/5 am I correct. Thanks
*Thursday, August 27, 2015 by Tamara*

**Math**

My math question is, write 0.67 in simplest form. My answer is 20/40 am I correct.
*Thursday, August 27, 2015 by tamara*

**Math 10**

EXPONENTIAL EQUATION Find the X 3^x - 82/9 = -3^-x
*Thursday, August 27, 2015 by Julie*

**math**

If (2 1/2)^4y =1/8 then y = A. -4 B. -1/8 C. 7/8 D. 3/2 E. 21/16
*Thursday, August 27, 2015 by anonymous*

**Math**

17Min and 38mind explain the mental math
*Thursday, August 27, 2015 by Destiny*

**math**

Find the domain and range for y=x^2+9. Is the answer all real numbers? How would you enter that in interval notation? From Googling the definition of real numbers, I now understand that the infinity sign would not be included. For a continuous function you use closed brackets...
*Thursday, August 27, 2015 by Natalie*

**Math (functions)**

For tax purposes, you may have to report the value of your assets, such as cars or refrigerators. The value you report drops with time. "Straight-line depreciation" assumes that the value is a linear function of time. If a $1020 refrigerator depreciates completely in...
*Wednesday, August 26, 2015 by Natalie*

**Math**

Find the domain and range for y=x^2+9. Wouldn't the domain and range just be all real numbers since nothing else is really given in the equation? How would you enter "all real numbers" in interval notation? Would it include the infinity sign?
*Wednesday, August 26, 2015 by Lillian*

**Algebra **

Need help to an math problem. James have 15 cases, with 15 boxes per case, and 15 brands per box. Write an exponential expression using a base of 15 to show how many total brands there are in a stack of cases. How would I write that?
*Wednesday, August 26, 2015 by Anonymous*

**Math **

Explain whether a function that has a slope of 0 can have the attribute of symmetry. . My answer is yes, because even though there is no slope you still have a possibility of it being symmetrical to the y axis depending on the domain. Am I correct
*Wednesday, August 26, 2015 by Karen *

**Math**

The food that the average American consumes in a day provides 2.0 X 10^3 kcal of energy. How many calories a sec is this? *how to set up work in dimensional analysis*? & *what is "k" in kcal stand for*?
*Wednesday, August 26, 2015 by Karen *

**Math**

Diamonds are measured in units called a carat. One carat equals 200mg. If a diamond is 0.600 carat, what is the mass of the diamond in ounces? * 1kg=2.205 pounds* *1pound= 16 ounces* . . How do I get to the answer showing work/setting it up?
*Wednesday, August 26, 2015 by Karen *

**Math**

You have been given a recipe for a completely new fruit drink. The recipe has three parts. Here is the recipe: Fruit drink recipe: 2 parts pineapple juice, 3 parts cranberry juice; 5 parts lemon juice The mixers need to make 1 quart (4 cups) of juice for the taste test. How ...
*Wednesday, August 26, 2015 by Mario*

**Math**

at a track meet with 135 participants, 25 participate in jumping event, 1/5 of these jumpers are female, and 1/3 of the the total participants are female. What is the probability that a participant chosen at random is a jumper, given that the person is a female? Please help?
*Wednesday, August 26, 2015 by jackie*

**math**

During a department store sale 30 shoppers bought only clothing. 5 shoppers bought only towels, and 15 shoppers thought both clothing and towels. If 100 people shopped that day and a shopper is chosen at random, what is the probability that the shopper has bought towels?
*Wednesday, August 26, 2015 by jackie*

**math**

There are a total of 36 bikes.If the ratio of green bikes to blue bikes is 4 to 5,how many of the bikes are blue?
*Wednesday, August 26, 2015 by ignacio*

**Math**

An artist wants to frame a square painting with an area of 400 square inches. She wants to know the length of the wood trim that is needed to go around the painting. a. If x is the length of one side of the painting, what equation can you set up to find the length of a side? ...
*Wednesday, August 26, 2015 by I Need Help :/*

**Math**

Which expression are equivalent to -3.5(2-3n)-2.5n
*Wednesday, August 26, 2015 by Dontrell*

**Math**

What is .45 with bar notation over the 45 rounded to?
*Wednesday, August 26, 2015 by Potato*

**math**

OK thank you so much I appreciate it
*Wednesday, August 26, 2015 by tomeisha*

**math**

junita is making necklace to give present.she plans to put15 beads in each necklace . Beads are sold in packages of 20.what is the least number of packages she can buy to make necklaces and have no beads left over?
*Wednesday, August 26, 2015 by Ash iq*

**fundamentals math**

a box contains the following mixture of colored marbles 2 black, 3 red, 5 yellow, and 2 green. If two marbles are drawn, the second being drawn n after the first is replaced, then what is the probability that both are black?
*Wednesday, August 26, 2015 by jackie*

**math**

How did you find the answer for number of goldfish and number of koi
*Wednesday, August 26, 2015 by tomeisha*

**math **

write each expression using n as your variable.then simplify fully. 1.five more than the sum of a number and ten. 2.the product of eight and seven less than a number. 3.the quotient of a number and three, increased by one. 4.ten less than the product of six and eight less than...
*Wednesday, August 26, 2015 by bre*

**Math**

Deshawn and Luke had an equal number of stickers. After Deshawn used 26 stickers and Luke lost 38 stickers,Deshawn had twice as many stickers as Luke. How many stickers did each of them have?
*Wednesday, August 26, 2015 by Alyssa *

**math **

Tony would like yo build a circular pond with depth of 1.5 feet in her backyard. She is considering how many fish a pond will hold. The home and garden store recommends 1 goldfish for every 3 square feet of surface area or 1koi for every 10 square feet of surface area. ...
*Wednesday, August 26, 2015 by tomeisha*

**math**

two marbles are drawn without replacement from a box with 3 white,2 green, 2 red, and 1 blue marble. Find the probability. Both are white marbles.
*Wednesday, August 26, 2015 by jackie*

**math**

In electric circuit theory, the phase angle of "true and real" power is expressed in terms of what function in reference to the apparent power?
*Wednesday, August 26, 2015 by reece*

**math**

Bob must save a total of 180 dollars for a new bike. So far he saved four fifths of the amount. How much money has Bob saved for his bike
*Wednesday, August 26, 2015 by kenney*