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Homework Help: Math
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math
60 is what percent of 180
Math
3 (3+4x) - 5 ¡Ý 100 =
Math
x/5 -1 ¡Ü 6/7
math
find the sum of the arithmetic sequence 52,48,44,...,-12,-16,-20
math-word problem
The width of a rectangle is fixed at 21cm. What lengths will make the perimeter greater than 80cm. Please help with this word problem I do not even know where to begin.
math
Evaluate a+b/6 for a =33 and b=15 33+15/6 48/6 8<-----is my answer is that correct?
math-please check my answer
Find the slope of these two points (3,5)and (-5,-2) Is the slope 3?
math
A swimmer going downstream takes 1hour, 20 minutes to travel a certain distance. If takes the swimmer 4 hours to make to return trip against the current. If the river flows at the rate of 1.5mph. Find the rate of the swimmer in still water and the distance traveled one way.
math
im doing corespondence and i tried for days to figure this out and i cant can anyone help?? Determine the amount of each investment? $400 at 9% compounded semi-annually for 2 years i just need that answer and how too get it then i can do them thank you
math-please check my answer
Translate the following the product of 47% and some number (using q for some number) .47q is my answer correct?
math-please check my answer
what is the slope of the following 2 points (0,-3) and (0,5) Please help I think the slope is -3 am I right?
math
last weekend, I went to play the nearby park. It was real fun! I rode my new bicycle tat Mom had gifted me on my birthday. On reaching the park, I saw that there were a total of 15 bicycles and tricycles. if the total number of wheels was 35, how many tricycles are there?
math
When an airplane flies with a given wind, it can travel 3000 km in 5hrs. When the same airplane flies in the opposite direction against the wind it takes 10hrs to fly the same distance. Find the speed of the plane in still air and the speed of the wind.
math
please help me to solve this problem A swimmer going downstream takes 1hour,20minutes to travel a certain distance. It takes the swimmer 4hours to make the return trip against the current. If the river flows at the rate of 1.5mph. Find the rate of the swimmer in still water an...
grade 12 math
for the function f(x)=6-5(3)^x-1/3 (a)simplify(in form =ab^kx+d (b)state the domain (c)state the range
grade 12 math
solve 1-tan^2x=0 , 0≤x≤2pi
grade 12 math
determine the inverse of y=2(3)^x+1
math
what is the slope of the following 2 points (0,-3) and (0,5)
math-please check my answer
0.6x + 4 < 1.0x - 1 6x + 40 < 10x - 10 4x > 50 x > 12.5 can someone please check my work and tell me if I am right?
math-please check my answer
50% of what number is 45? I did 45*.50=22.5 is that the correct answer?
math
Please help with this question. A bag contains 10 marbles of which 3 are red. A marble is selected at random and replaced. A second marble is then selected at random. What is the probability that both marbles are red?
math
The total sales made by a salesperson was $25,000 after 3 months and $68,000 after 23 months. Using an equation for the line whose graph depicts this data, predict the total sales after 40 months.
CONTEMPORARY MATH
HOW DID THEY GET THIS ANSWER? PHYSICAL INVENTORY OF PICTURE FRAME WAS TAKEN AT TARGET THEY FOUND THERE WAS 700 WAS REMAINING WHAT WAS THE INVENTORY PRICING? IT GOES ON TO GIVE THE STRATEGY JAN 1 BEGIN INVEN. 400 UNITS @ $5.00 = $2000.00 APRIL 9 PURCHASE 200 UNITS @ $6.00 = $12...
Math
having problems with this one: 4 qt 9 pt = ______ pt
math
using fifo method what is the dollar value on ending inventory if ther was 380 videos games on hand. may 14, 100 units @ 8.00 1,600.00 aug 27, 250 units @ 9.00 850.00 nov 18, 300 units @ 8.75 2,625.00
math/probability
Hi. I have an answer for this question however, not sure. In a certain lottery, 4 numbers between 1 and 10 inclusive are drawn. These are the winning numbers. How many different selections are possible? Assume that the order in which the numbers are drawn are not imprt. (10*9*...
math
Find the unit rate. forty-eight miles in twenty hours
Math
An appliance dealer marks up refrigerators 30% (based on cost). If the cost of one model is $1,000, what should its selling price be?
Math
On a test, Abbey had 75% of the problems right. If she had 48 problems correct, how many questions were on the test?
algebra math 208
determine if the given number is a solution to the equation 6, -x + 12 =6
algebra math 208
10-2y=6x
math
Ok. I pretty much have this one solved but the final answer has me stumped. The probability that Luis will pass his statistics test is 0.51. Find the probability that he will fail his statistics test. This is what I have so far. P(fail)=.51; =1-.51. But I am not sure of the fi...
Math
10cm 3cute of normal specimen of human blood contains 1.2g of hemoglobin how many grams does 18cm 3cute of the same blood contain? Please help!
Math
Hat sizes are determined by measuring the circumference of the head in either inches or centimeters? use ratio and proportions to complete the following table Hat size =7 Head circumference inches = 22 and Centimeters =56 and If hat size was 6 3/4 Head circumference in inches ...
Math
Hat sizes are determined by measuring the circumference of the head in either inches or centimeters? use ratio and proportions to complete the following table Hat size =7 Head circumference inches = 22 and Centimeters =56 and If hat size was 6 3/4 Head circumference in inches ...
Math
I have to find the relationship between these sequences, and express a generality. Could you help please. 1 + 3 + 5 + 3 + 1 = 3^2 + 2^2 1 + 3 + 5 + 7 + 9 + 7 + 5+ 3 + 1 = 5^2 + 4^2 1 + 3 + 1 = 2^2 + 1^2 I'm thinking sum of consecutive primes can be expressed in squares? Th...
Math
Ok. I have one more question. The mean height of 5 students is 59.4. If one of the students leaves, the mean height becomes 61. What is the height of the absent student? I have this so far but still having problems solving it: 5(59.4)=4(61)+1(X);X=? Thank you so much.
math/ algebra
Thank you for your help! The question is what is the center and radius of the circle. (x+2)^2+y^2=64. Thank you so much.
math/linear equation
Good morning. I have a question that I'm stuck on. I need to determine if the relationship represented is linear and if it is, then I need to write an equation for it. Help is deeply appreciated. For x- 2,4,7,10,12,20 For y- 5,7,10,13,15,23
math
THe perimeter of a rectangle is 166 inches. The length exceeds the width by 23 inches. Find the lenght and the width
math
There are 3 white marbles, 8 red marbles, 3 blue marbles anf 1 black marbles. predict the number of times out of 300 you will pick a red marble.
math
1+3> 4 can anyone help me with this.
math
Can anyone help me with dq i week 2Post your response to the following: How do you know if a value is a solution for an inequality? How is this different from determining if a value is a solution to an equation? If you replace the equal sign of an equation with an inequality s...
math
he area of a triangle with base b and height h is given by A=1/2 bh. find the area when b =15 (meter) and h= 40m
Math
Simplify 3ã8X^6
math
where does cos(x) and sin (x) intersect in the first quadrant? Thanks
math
How do you convert the square root of 104 to make it =8.4
math
how do you write 8 more than a number is equal to 16 as an equation?
math
multiply by the resipical 1/5p=-3
math
1/4y=-12 , 1/5p=-3 , x/7=-5
math/equations
Hi. I am having some issues with this one. Give the equation of the line that is perpendicular to the line y=x+6 and passes through point (0,-4). Thank you so very much!!!
math
6/7s-3/4=4/5-1/7s+1/6
math/rounding
Hi. I just need to know what is 26 rounded to the hundredth place. I believe it is 0.26 however I need to be sure. Thank you so much!
math
Hi I need help with this math problem: The plane that contains the points (8,3,1), (2,6,3), and (4,6,2) has an equation of the form ax + by + cz = d. Find coefficients for this equation, trying two different approaches to the problem. One method uses vectors, another does not....
Math 116 Axia
rewrite using multiplication -70/(23) Do not simplify, Type a fraction I can multiply and divide but I am not sure how to work the problem. can someone do a problem with the same type of values so I can see the steps involved? Please and thank you! possible sample -50/(13)
Math
Gail ran the 100m dash in 10.74 seconds. How many Km per hour is this?
college math
A student makes a 10.50 purchase at the bookstore with a $20.00 bill. The store has no bills and gives the change in quarters and fifty-cent pieces. There are 30 coins in all. How many of each kind are there?
math
The difference of the digits of a two-digit number is 5. The number is equal to five less than the number of tens. Find the number.
math
The sum of the digits of a two-digit number is 16. If the digits are reversed the new number will be 18 greater than the original number. Find the number.
Math
A recent survey found that 70% of all adults over 50 wear glasses for driving. In a random sample of 10 adults over 50, what is the probability that exactly eight wear glasses?
Math
Please I need help! The Acme Candy Company claims that 60% of the jawbreakers it produces weigh more than .4 ounces. Suppose that 800 jawbreakers are selected at random from the production lines. Would it be unusual for this sample of 800 to contain 418 jawbreakers that weigh ...
Math
Which % is lower 1.9% or 00131%?
Math
can the fraction 104/117 be reduced or simplified?
math
is there a common multipple for 116, and 145? Can 116/145 be reduced or simplified? I have been agonizing for an hour over this. Please show me the answer.
math
what is the probability of a six card hand cantoning no fives?
math
a group of hockey officials consists of 6 referees and 5 linesmen. the probability that the youngest referee and linesman would be selected if one referee and two linesman are required is a) 1/15 b)1/30 c) 1/60 d)1/120
math
Q-2: In a subdivision, 67% of the homes have detached garages, 32% have a patio, and 13% have both. What is the probability that a house has a patio if you know that it has a detached garage?
math
Cynthia is three years older than Dina. The sum of their ages is 31. Find their ages. what are the equation for Dina and for Cynthai
math
what are the equation for Orly and Perla
math
Ansell now is 3 times as old as Bert. Five years from now he will be twice as old as Bert is then. Find both ages.
Math
long mulipulcation 345 x 5 ----
math
Orly's age is 4 years more than thrice Perla's age. Four years ago, Orly was four times as old as Perla was then. How old is each now?
math
Cynthia is three years old than Dina. The sum of their ages is 31. Find their ages.
math
Ansell now is 3 times as old as Bert. Five years from now he will be twice as old as Bert is then. Find both ages. how can you translate this problem to linear equation.
Math /Equations
Hi. I need to find the distance between the two points and then round the answer to the nearest hundredth. (8,4) and (18, 28). Thank you so much.
MATH/ EQUATIONS
Hi. I have a question I need to write an equation that is parallel to the line y= -4x +3 and a y-intercept of -5. Thank you!
math
the distance from library to park is 1.2 to park and the distance from the park to the pool is 0.5 miles.the park is between the libarary and pool.whats the distance from the pool to the library
math
a daisy is 24 inches tall . the height of a sunflower 3 1/2 times the height of the daisy.find the height of the sunflower umm 20
math
michael rides his bike 2 3/5 as long as jacob. find micheal's riding times if jacob rides for 45 minutes
math
14. (32+48)+52=32+(48+52) associative 15. 256+0=256 identity property 16.3/10x10/3=1 inverse property 17.1x143=143 identity property 18. 81+(-81)=0 inverse property
math
name the property shown by each statement 9. 34+42=42+34:commutative 10. 8x(53+12)= (8x53)+(8x12): distributive 11.1/16x16=1: inverse property 12.16x(5x15)=(16x5)x15 : associative 13. 2/5x5/3=5/3x2/5:commutative
Science/Math
I have to figure out what percentasge of time each cell is in a phase. I have 5 phases. That equal to 36 cells in each phase. 1st phase 20 cells 2nd phase 10 cells 3rd phase 3 cells 4th phase 2 cells 5th pase 1 cell. This is based on a 24 hour period and each cell added togeth...
Math (Algebra) Repost from July 27, 2010 at 4:13pm
Could someone help to explain to me how factoring is used to solve quadratic equations? Also could you give me some example to try? Thank You.
math
name the multiplication inverse, or reciprocal of each number. 5.4 - 4x1/4=4/1=1 6.7 - 7x1/7=1/7=1 7.2/5 - 2/5x5/2=1 8.7/16 - 7/16x16/7=7/16x/7/=1
math
name the additive inverse, opposite of each number. 1.8 - 8+(-8)= 0 2.5 - 5+(-5)= 0 3.3/4 - 3/4+(-3/4)=0 4. 1 1/2 - 1 1/2+(1 1/2)=0
Math-Stats
The Acme Candy Company claims that 60% of the jawbreakers it produces weigh more than .4 ounces. Suppose that 800 jawbreakers are selected at random from the production lines. Would it be unusual for this sample of 800 to contain 418 jawbreakers that weigh more than .4 ounces?
math
the digits of a two digit number are reversed. when both of these numbers are added the result is 88 and when subtracted the result is 54. the original two digit number contains which of the following digits 2 3 5 or 7
math
Hooke's Law. The distance d when a spring is stretched by a hanging object varies directly as the weight w of the object. If the distance is 64cm when the weight is 3kg, what is the distance when the wight is 9kg?
Math(word problem)
For the line joining points A(-1, 3) and B(5, 7): a.Find the midpoint of the line. b.Find the distance of the line. c.Find the slope of the line. d.Find the y-intercept of the line. e.What would be the slope of a line perpendicular to this line?
Math
PQR ~ STU. PQ = 12cm and ST = 9cm. The area of STU is 72 cm². Find the area of PQR.
Math(word problems)
4.Tracie invested $x at 7% and $y at 6%. Write algebraic expressions for: a.the total amount of money invested b.the interest earned at 7% in one year c.the interest earned at 6% in one year d.the total interest earned in one year
Math
x +/- 3 is that mroe simplified then writing it out x + 3, x - 3 I thought it would be becaue we normally say simple is when all of the operations that could be done is done in which case the second choice is more simple? I'm just woundering because i'm doing a summer ...
math
i am a polygon.i am a quadrangle.all of my sides are the same length.none of my angles are right angles.what am i?
MATH
A 210 ft. long rope is cut into 3 pieces. The first piece of rope is 3 times as long as the second piece of rope. The third piece of rope is 2 times as long as the second piece of rope. What is the length of the longest piece of rope?
Finance/Math
PLease help, I have a business finance class I am really ineed of help. I do not understand this at all. I have gone over and over the instructions and I am still getting it wrong. Please help. Year Cash Flow 1 $695,000 2 876,250 3 1,057,500 4 1,238,750 5 1,420,000 1. Calculat...
math problem
In a raffle 1000 tickets are being sold at $1.00 each. the first prize is $100, and there are 3 second prizes of $50 each. by how much does the price of a ticket exceed its expected value?
math
for this infinite series (-1)^n/n^2 if i use alternating series test to show that sequence does of a^n does not go to 0, then does this mean that this series is diverging
Math (Algebra)
Could someone help to explain to me how factoring is used to solve quadratic equations?
Math
The digits of a two-digit number are reversed. When both these two-digit numbers are added, the result is 88, and when subtracted, the result is 54. The original two-digit number contains which of the following digits? 2 3 5 7
math
of a radio show. Each commercial is either 30 seconds or 60 seconds long. If the total comercial time during 1 hour is 13 min, how many 30-second commercials were played that hour? How many 60-second commercials?
math
if E and F are independent events, find P(F) if P(E)=0.2 and P(E U F)= 0.3
math problem
two cards are drawn at random (without replacement) from a regular deck of 52 cards a) what is the probability that the first card is a heart and the second is red? b) what is the probability that the first card is red and the second is a heart?
math 127
In 2008 ACT,Inc reported that 74% of 1500 randomly selected college freshman rerurned to college the next year. Estimate the national freshman to sophomore retention rate. a) Verify below the two condition are met for constructing a confidence interval for the population propo...
Math
a corporate software development firm has a staff of online support technicians available 24 hours hours a day. they advertise that one of the advantages of using their company is that the ratio of accounts-to-support technicians is 5:1. This year they have eight technicians o...
math
The digits of a two-digit number are reversed. When both these two-digit numbers are added, the result is 88, and when subtracted, the result is 54. The original two-digit number contains which of the following digits? 2 3 5 7 Explain your reasoning. How did you come to your c...
math
what is link sheet?
Math (Algebra)
How do I find the greatest common factor of a polynomial? When finding the greatest common factor of a polynomial, can it ever be larger than the smallest coefficient and can it ever be smaller than the smallest coefficient? Please explain.
math
Saying that 4<(sq.root of x)<9 is equivalent to saying what about x ? a. 0<x<5 b. 0<x<65 c. 2<x<3 d. 4<x<9 e. 16<x<81 Please help. Does this problem relate to 'x'values on the xy coordinate system ? If so please explain the concept ...
math
a three digit number is chosen at random. what is the probability that the sum of the digits is less than 6? i got 3.78% but im not sure if that is correct. I assumed that there were three possible outcomes because 012 would just be considered 12
math
clarence has $20, 000 in the bank. He wants to create an investment to pay his $230 monthly car insurance payment for four years, with the first payment dude in one month. How much of his $20, 000 should he invest now at %8.25 per annum, compounded monthly?
Algebra math 208
write each equation in slope intercept form y + 3 = - 3(x-6)
math/algebra
solve the compound inequality. 2x-7 / 6 is less than or equal to -7, or 2x-7 / 6 is greater than or equal to 5 I came up with -35/2 or 37/2 but it's incorrect. help?!!
Math 117
When finding the GCF of a polynomial, can it ever be larger than the smallest coefficient or smaller than the smallest coefficent? I am stuck and I am not sure on this questio. Any help you can provide me would be great. Thanks!
math
leon shoped for school supplies. when he got home he had $23.50 left. he spent 3 times that much at school suplies . write an expresstion that will tell how money lean had before he went shopping. i think its $70.50
Math
Use Part 1 of the Fundamental Theorem of Calculus to find the derivative of the function h(x)=integral [2,1/x]sin^4t dt
math
inverse of y=-√(9-x^2 )
math
simplify 1/x+h - 1/x
math
The winning time int he womens Olympic 200 meter dash w is a function of the year x in which the event was run, starting with 1948 and is given by the equation w= f(X)= -0.0661X+152.8 A. PREDICT THE WINNING TIME FOR THE 1988 OLYMPICS. ( THE ACTUAL TIME WAS 21.34 SECONDS) B. FI...
math
Find the inverse for graphing y=f(x)=3^-x
math
factoring strategy 9x^2 + 4y^2
Math
What ratio is equal to 1/3? 3:1 6:9 20:80 21:63
Math
a pudding recipe for 50 people calls for 4 cups of sugar. each bag of sugar contains 6 cups. how many bags of sugar will be needed to make this recipe for 300 people?
Math-linear programming
Which of the following mathematical relationships could be found in a linear programming model? Choose YES if the relationship could be, and NO if it could not. A. YES B. NO 1. B-2A + 7B = 45 2. 4A - B ¡Ü 10 3. A + \ 2B ¡Ý 22 4. 3A + 2B - AB = 12 5. 2A2...
Math-linear program
For the linear program Max 2A + 7B s.t. A + B ¡Ý 12 2A + 2 B ¡Ü 26 B ¡Ý 1 A, B ¡Ý Which of the following would be found in the correct standard form? A + B - S1 = 12 2A + 2B - S2 = 26 2A + 2B + S2 = 12 A - S3 = 1 B - S3 = 1 2A ...
math
A committee of 2 teachers and 3 students is to be randomly chosen from a group of 5 teacher and 6 students. the total number of different committees is?
math
the number of ways in which 18 students in Mr. Garr grade 3 class can line up for a photo if the the Armstrong triplets cannot all be together is n x16! what is n?
math
pls help me to solved this equation 1. 6y=x+18 2y-x=6, 2. 4x=3y=13 2x-4y=1 3. y=3x-12 2/3x=2/3-1/6y pls help me now. this equation is Systems of Linear Equations Solved Algebraically.
math prob.
Through a mix-up on the production line, 6 defective refrigerators were shipped out with 44 good ones. if 5 are selected at random, what is the probability that at least 2 of them are defective? ty in advance!!
math prob.
the purchasing director of a bank has just received a shipment of 100 printers. She has been told that the shipment includes 5 defective printers. She randomly selects two printers and tests them. If both printers work the purchasing director accepts the shipment. what is the ...
Math
2x-1 =13 please help me to understand how to work this one it is due tonight thank you
Math
3[1-6(2-9)] simplify
math
what is 589+96=
Math-Pre Cal & Trig
A pendulum swings uniformly back and forth, taking 2 seconds to move from the position directly above point A to the position directly above point B. . . . . _______________._______________ A . B . (SIMPLE DRAWING) The distance from A to B si 20 centimeters. Let d(t) be the ho...
Math-PLEASE HELP DUE TONIGHT
Hockey teams receive 2 points when they win and 1 point when they tie. One season, a team won a championship with 64 points. They won 11 more games than they tied. How many wins and how many ties did they have?
Math.
#1) Consider the experiment of rolling a single die. Find the probability of the event described. What is P(odd and prime)? A) 1/6 B) 1/2 C) 1/3 D) 2/3 #2) Consider the experiment of selecting a card from an ordinary deck of 52 playing cards and determine the probability of th...
Math.
1) Find d in simplest radical form. Right square pyramid with equilateral triangular faces has 8 on all sides A) 4ã2 B) 8ã2 C) 4ã3 D) 8ã3 #2) Decide whether the statement is true or false. The sides of a regular polyhedron, a...
Math.
Determine whether the lines are parallel, perpendicular, or neither. # 1) y = 5( 4x + 9) and y = - 1/20x - 4 A) Parallel B) Perpendicular C) Neither #2) y = 9x + 9 and y = -9x + 9 A) Parallel B) Perpendicular C) Neither
Math
How many cubic kilometers of water reside within groundwater? How many more times abundant is groundwater than water on land? These are the figures. Groundwater = 8.4 (Each unit is one million cubic kilometers x 1,000,000 km3) Water on land = 0.2
math
find the equation of line y=x+1 under each of the following transformations (a) (x,Y)-(x+3,Y+5) (b) reflections across the x-axis (c) reflection across the y-axis (d) half turn about origin
math
a rectangular table top measures 4/5 of a meter long by 4/5 of a meter wide. What is the area?
Math
Describe objects that have each of the following type of symmetry (a) line (b) point (c)plane (d) 90% rotational
math
identify the ff properties in the given quadratic equations: a.Vertex b. axis of symmetry c. Domain d. Range e direction of graph 1.f(x)=x2-5x+14
math
50–59 and the corresponding relative frequency is 0.2. What does the 0.2 value indicate
Math (Very Easy Math)
I'm kind of confused as to what simplified mean? Can you please provide me with a definiton... Like I'm kind of stumped as to what one is more simplified -7(2x + 3) or -14x -21 Please explain what it mean for an expression to be "simplified"
Math
2independant alternators. probabalitity one will fail in a 1 hour flight is .02 what is the probablility both will
math
Factorise: a^4 + b^4 + c^4 - 2 (a^2 x b^2 + a^2 x c + b^2 x c)
math
Simplify: 2/1! - 3/2! + 4/3! - 5/4! + ..... + 2010/2009! - 2011/2010! Where k! is the multiplication of all numbers up to k (e.g. 5! = 5x4x3x2x1=120)
math
Let triangle ABC be a triangle such that angle ACB is 135 degrees. Prove that AB^2 = AC^2 + BC^2 - (Root 2) x AC x BC
math
Let triangle ABC be a triangle such that angle ACB is 135 degrees. Prove that AB^2 = AC^2 + BC^2 - (Root 2) x AC x BC
math
The sales tax rate in a state is 8%. If you pay a tax of $2.50 on an item purchased, what is the selling price? Plaese identify the BASE in this problem.
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