Thursday
December 8, 2016

# Homework Help: Math

## Recent Math Questions

Math
In set-builder notation, how do you write the soultions of the inequality? 5x+17>=7 A.{x|x>=2} B.{x|x>=-2} C.{x|x<=-2} D.{x|x<=2} 2. In set-builder notation, how do you write the solutions of the inequality? -4-x>=-2 A. {x|x>=-2 B. {x|x>=2 C. {x|x<=-...
Friday, October 21, 2016 by Anonymous

Math
For the pair of supply-and-demand equations, where x represents the quantity demanded in units of 1,000 and p is the unit price in dollars, find the equilibrium quantity and the equilibrium price. 2x + 9p - 93 = 0 and 3x - 14p + 108 = 0 a. equilibrium quantity 12,000 units; ...
Friday, October 21, 2016 by Kal Jay

algebra
someone help please im homeschooled and dont understand math at all, its my weakest subject :( If y varies inversely with x and y = 6 when x = 3, then what is y when x = 2? a.) 9 b.) 12 -im guessing this? c.) 18 d.) 36
Friday, October 21, 2016 by megann

Math
A manufacturer of 24-hr variable timers, has a monthly fixed cost of $56,000 and a production cost of$9 for each timer manufactured. The units sell for $16 each. Find the break-even point algebraically. a. break-even production 16,000 units; break-even revenue$1,280,000 b. ...
Friday, October 21, 2016 by Kal Jay

The demand equation for a certain brand of GPS Navigator is x + 3p - 565 = 0, where x is the quantity demanded per week and p is the wholesale unit price in dollars. The supply equation is x - 16p + 480 = 0, where x is the quantity the supplier will make available in the ...
Friday, October 21, 2016 by Kal Jay

math
Suppose y varies directly with x and y = 72 when x = 6. What direct variation equation relates x and y? What is the value of y when x = 10?
Friday, October 21, 2016 by kyle

Math
Three-dimensional tic-tac-toe can be played on three arrays of 3x3 lattice points. To win, three points in a line must be chosen. Examples of such lines are ABC, ADE, AFG, AHI, FHJ. How many different lines can be found?
Friday, October 21, 2016 by Thomas

math
I'm really struggling with the concept of direct variation and indirect variation. Is there an easy way to explain it and understand it?
Friday, October 21, 2016 by Carly

math
State whether the lines are parallel, perpendicular, or neither. Show your work.x–5y=103 and –2x=–206–10y i got neither is that right
Friday, October 21, 2016 by allie

Math (Calculus)
Determine if each of the following functions is in Big-O, is Big-Omega and is Big-Theta of x: (Could be multiple) a) f(x)=10 b) f(x)=3x+7 C) f(x)=x^2+x+1 d) f(x)=5log(x) e) f(x)=|x| f) f(x)=x/2 I'm in calc 1 and I have no idea what's it even asking me. Help? Thanks in ...
Friday, October 21, 2016 by Ray

art
The math tessellations: unit 4 1. The architectural design was created by: 1. using an organic pattern in the form of tessellation. 2. using a geometric pattern in the form a tessellation. 3. using no definite pattern and placing shapes randomly. 4. using patterns that ...
Friday, October 21, 2016 by Justin

Math
Why do you have to use estimation to find the number of triangles you need for the string? I was wondering why this question is quite confusing and i was wondering if you can explain it to me in a way i can understand it. I'm not looking for an answer just a more simpler ...
Friday, October 21, 2016 by Jacob

Ashley is making cookies the recipe calls for 3/4 of a cup of sugar she needs to make 5 batches of cookies. How many cups of sugar does Ashley need? a. 3 cups b. 3 1/4 cups c. 3 1/2 cups d. 3 3/4 cups***** ***My work*** 3/4 * 5 = 3.75 .75= 3/4 3 3/4 AM I RIGHT?
Friday, October 21, 2016 by RL GRIME

Cost Volume Profit Analysis (Math)
Margin of safety - 20% Fixed costs - $900,000 Contribution margin - 25% Break-even - 12,000 units Calculate actual total sales revenue. I have been trying this question out in many different ways however I still cannot solve it. Could someone show me the formulas and steps I ... Friday, October 21, 2016 by Anonymous Math What is an estimate of the solution of the equation 6n+3=2? Use a table ok so I know the answer is -1/6 but its asking to use a table? does anyone know what kind of table you use for this and how I'd use it? thank you soo much Friday, October 21, 2016 by Kylie Math which number is greater than 5.5 x 10^-7 and less then 5.5 x 10^7? a. 1.8 x 10^-12 b. 6.7 x 10^8 c. 5.2 x 10^3 d. 3.9 x 10^-8 Friday, October 21, 2016 by Josh Math 9. A grocer wants to mix a type of spice which costs £22 per kilogram with another type which costs £12 per kilogram, to obtain 20 kilograms of mixture which will cost £15 per kilogram. What quantity of each spice must the grocer take? Friday, October 21, 2016 by Alice Math What number has 7 tens and 3 less ones than tens? Friday, October 21, 2016 by Anonymous Math suppose that unit price p in dollars for a quantity demanded X of a certain product of a company is given by p=-0.08+620 (0 <x <14,000). find the revenue function. Find marginal revenue function. Friday, October 21, 2016 by Shala Math Please help!! This is a really weird question but I'm in a dilemma. My economics teacher doesn't post our marks online so idk what mark I'm actually at in his class. Can anyone help me figure out what percent I'm at right now if I give the following information... Friday, October 21, 2016 by Maya Math Frank reads at least 24 pages but not more than 36 pages of a book. He reads 12 pages per hour. The number of hours Frank reads p pages is modeled by a function. t(p)= p/12 1.) All real numbers from 2 to 3, inclusive. 2.) All real numbers. 3.) All real ... Friday, October 21, 2016 by Jay math Which equation is set up correctly to determine the volume of a 3.2 mole sample of oxygen gas at 50°C and 101.325 kPa? V=(3.2 mol)(8.314 L⋅kPa/K⋅mol)(323 K)101.325 kPa V=(3.2 mol)(8.314 L⋅kPa/K⋅mol)(50∘C)1 atm V=(8.314 L⋅kPa/K⋅mol... Friday, October 21, 2016 by anonymous Math Help! Help me please. Not sure how to solve this. Can someone show me how to do it step by step. -2/5x-9<9/10 Friday, October 21, 2016 by Amber math what is the answer to 1/3 * -1 1/5 Friday, October 21, 2016 by dude Math An automated production line uses distilled water at a rate of 300 gallons every 2 hours to make shampoo. After the line had run for 7 hours, planners noted that 2,500 gallons of distilled water remained in the storage tank. Write a linear equation relating the time in hours x... Friday, October 21, 2016 by Anonymous Math TOXIC CLEANUP Three months after cleanup began at the dump site, 800 cubic yards of toxic waste had yet to be removed. Two months later, that number had been lowered to 720 cubic yards. a. Write an equation that mathematically describes the linear relationship between the ... Friday, October 21, 2016 by Elena Davis math the 6th term of a gp is 2000 and it ratio is 10,find it first term Friday, October 21, 2016 by Philip math A scuba diver dove from the surface of the ocean to an elevation of -79 9/10 feet at a rate of -18.8 feet per minute. After spending 12.75 minutes at that elevation, the diver ascended to an elevation of -28 9/10 feet. The total time for the dive so far was 19 1/8 minutes. ... Friday, October 21, 2016 by tiffany Math The cost of renting a car from Rent-it Cheap for one day is$29 plus 50 cents per km. For the same period, Thrift Cars charges $37 plus 48 cents per km. When would it be more economical to rent a car from Thrift Cars? from Rent-it-cheap? Thursday, October 20, 2016 by Saleeha Math Ok I am lost I need help. Describe how you can use a generic rectangle to multiply two numbers. Give an example. I'm just thinking of 22×35 Thursday, October 20, 2016 by Jessica Math 9-2(b+3)=4b Thursday, October 20, 2016 by Nasra Math Jonathan goes running every 2 days and he goes swimming every 5 days today he went and went swimming and how many days will he run and swim in the same day again Thursday, October 20, 2016 by Antoine Math Please help!! This is a really weird question but I'm in a dilemma. My economics teacher doesn't post our marks online so idk what mark I'm actually at in his class. Can anyone help me figure out what percent I'm at right now if I give the following information... Thursday, October 20, 2016 by Maya Math This is a Bennett diagram question. If 24 students take music, calculate the number of students who take music and drama and also calculate the number for drama only If 3x + x +7 + x Thursday, October 20, 2016 by Chris Math The variables p and q have the same numerical value but the opposite sign; that is, one is positive and the other is negative. If -3*p + 4*q is positive, what can you say about p and q? Thursday, October 20, 2016 by Mo Math What is the answer to use the rule to write the first 12 numbers in the pattern the square root of the pattern in the numbers first rule of 6 first term Thursday, October 20, 2016 by Hannah Quarles Math The marked price of a car is$49500. A person pays a deposit of 30% and interest at 12% per annum is charged on the outstanding balance. The total amount payable is to be paid in 2 1/2 years Calculate the amount paid each month and the hire purchase
Thursday, October 20, 2016 by Korian

Math
Evaluate 2n up3 -3b, if n=3 and b=1. 1.8 2.9 3.15 4.21 5.33
Thursday, October 20, 2016 by emily

Math
What integer represent a debt of 12$Thursday, October 20, 2016 by Sara Math What is 17% of 800 and 83% of 800? Thursday, October 20, 2016 by Anonymous math When an airplane leaves the runway, its angle of climb is 24° and its speed is 345 feet per second. How long will it take the plane to climb to an altitude of 10,000 feet? 16,000 feet? (Round your answers to one decimal place.) 10,000 ft = ? in s 16,000 ft = ? in s Thursday, October 20, 2016 by Arora Math Three numbers form a g.p.if the first and third numbers are 5 and 245 respectively, find two possible values for the middle number. Thursday, October 20, 2016 by Tony Math This is a really weird question but mom in a dilemma. My economics teacher doesn't post our marks online so idk what mark I'm actually at in his class. Can anyone help me figure out what percent I'm at right now if I give the following information ? He has: ... Thursday, October 20, 2016 by Maya math f(x) = 4x-5 and g(x) = 3x, find (fog)(x) Thursday, October 20, 2016 by cris Math A Boy Scout has 3 meters of rope. He cuts the rope into cords 3/5m long. How many cords will he make? Thursday, October 20, 2016 by Bibi Math the 3 sides of a triangle have lengths of (x+7) inches, (5x+6) inches, and (5x-3) inches. What is the length of the shortest side if the perimeter of the triangle is 43 inches Thursday, October 20, 2016 by Nethan Math A rectangular school banner has a length of 36 inches and a width of 52 inches. A sign is made that is similar to the school banner and has a length of 22 inches. What is the ratio of the area of the school banner to the area of the sign? What is the ratio of the areas? Thursday, October 20, 2016 by Sun MATH Suppose an object moves along the x-axis so that its position at time$t$is$x=-t+\frac{t^3}{6}$. (a) Find the velocity,$v(t)=x(t)$, of the object. (b) What is$v(0)$? What does this say about the direction of motion of the object at time$t=0$? (c) When is the object at the... Thursday, October 20, 2016 by Sara Math A rectangle, a circle and a triangle are drawn in a plane. What is the maximum number possible points of intersection. The sides of the triangle are not collinear with any of the sides of the rectangle. Thursday, October 20, 2016 by David Math adding and subtraction number using greatest common factors 940-420=? 169-26=? 15+75-45=? 48+16=? 17+51=? What is the GCF? Thursday, October 20, 2016 by Student Math adding and subtraction number using greatest common factors 940-420=? What is the GCF? Thursday, October 20, 2016 by Student Math adding and subtraction number using greatest common factors 121-22=? What is GCF of this problem? Thursday, October 20, 2016 by Student maths In a class of 38 students, each student studies at least one of the following subjects: French, Mathematics and History. The following table gives further details of the subject studied. French 9 Mathematics only 8 History only 1 French & Math. 7 French & History 9 History & ... Thursday, October 20, 2016 by gtj math If I have 2 sweatshirts, 2 shirts, 2 pants, 2 shorts, and 2 shoes what would the tree diagram look like? Thursday, October 20, 2016 by Kira Math A rectangular school banner has a length of 36 inches and a width of 52 inches. A sign is made that is similar to the school banner and has a length of 22 inches. What is the ratio of the area of the school banner to the area of the sign? What is the ratio of the areas? I ... Thursday, October 20, 2016 by Jack Math Three numbers form a g.p.if the first and third numbers are 5and245 respectively,find two possible values for the middle number. Thursday, October 20, 2016 by Tony Math 1/4(x-y) =1, find y thanks Thursday, October 20, 2016 by LA Math 1/3 gallon of tea into 3 cups. How much in each cup? Thursday, October 20, 2016 by Marie Math A rectangular shaped desk has a length of 36 inches and a width of 16 inches. A desk with a similar shape has a width of 24 inches. What is the length of this desk? Thursday, October 20, 2016 by Alex Math A 6-foot person standing 15 feet from a streetlight casts a 10-foot shadow. Two similar triangles are formed. One triangle is formed by the person and the shadow that the person casts. A second triangle is formed by the streetlight and the ground from the base of the ... Thursday, October 20, 2016 by Alex Math There are 2 loaves of bread and 1/4 of each bread is served to 6 students? How many many are served to each student? Thursday, October 20, 2016 by Aiden math Show me how to make$0.60 in two ways,without using quarters or pennies
Thursday, October 20, 2016 by angel

Math
Distribute 35-15
Thursday, October 20, 2016 by Kat

math
12,b,75 are consecutive terms of a geometrical sequence what is the common ratio?
Thursday, October 20, 2016 by victor

Math
Length of a rectangle is 16 centimetre less than twice its breadth if the perimeter of a rectangle is 100 centimetre find its length and breadth
Thursday, October 20, 2016 by Harvinder

Math
Does Anyone have the answers to math unit 3 lesson 12 : Exponents factors and fractions unit test its urgent please
Thursday, October 20, 2016 by HELP PLEASE

Math
Kat has a smoothie company. She needs to make 240 cups of fruit smoothies for the next day. If she wants to store the smoothies overnight in quart containers, how many quart containers will kat need?
Thursday, October 20, 2016 by Lucus

All of math
What are all the answers to unit 4 lesson 11
Thursday, October 20, 2016 by Sam

math
two strips of fabric measure 14 2/3 inches and 20 7/8 inches in length. to form one length, the strips are sew together using 3/8 inch from each strip to make the seam. what is the final length of the fabric after the two strips are sewn together.
Thursday, October 20, 2016 by charles

Math (Function differentiable)
Determine whether the function is differentiable at x=2 x^2+1 for x<(or equal to) 2 4x-3 for x>2 I did the math for the limits of both equations and they both approach to 4. So that means they are differentiable right?
Thursday, October 20, 2016 by Ray

math
S varies directly to the square of t. Given that S = 100, when t = 4, calculate the value of: a) k, the constant of proportionality b) S when t = 8 c) t when S = 1
Thursday, October 20, 2016 by Jess

mathematics
a student answers 90% of the questions on a math exam correctly.if the answers 27 questions correctly.how many questions are on the exam?
Thursday, October 20, 2016 by Anonymous

Math
Craig used the diagram to compute the distance from ferris to dunlap to butte. how much shorter is the distance directly from ferris to butte than the distance craig found? 14 mi 28 mi 70 mi*** 98 mi
Thursday, October 20, 2016 by Ras

Math
an irrigation pump can do a job 3 times faster than another. If the y work together it takes 9 hours to complete the job. How long would it take the larger pump by itself
Thursday, October 20, 2016 by Pat

math
Lily and Rose are playing the game in the game each player starts with 0 points
Thursday, October 20, 2016 by Derek

Math
The sum of three consecutive natural number is 153.find the numbers
Thursday, October 20, 2016 by Nikhil

math
How many 3-digit numbers can be formed using the digits 1, 2, 3, 4, 5, 6, 7 if repetition of digits is not allowed?
Thursday, October 20, 2016 by Anonymous

Math
Roy throws a flying disc, and it lands 30 meters away.The distance Anna throws the disc is times the distance Roy throws the disc.The distance Glen throws the disc is times the distance Roy throws the disc. Place the names in order from greatest to least distance they throw ...
Thursday, October 20, 2016 by 123bruh

Math
Walmart sells a case of 24 cans of diet coke for $6.88. Publix sells a 12 pack of diet coke for$3.99. Which is the best buy? I need help on this.
Thursday, October 20, 2016 by Erik

Math
You mix 8 tablespoons of hot sauce and 3 cups of salsa in a green bowl. You mix 12 tablespoons of hot sauce and 4 cups of salsa in an orange bowl. Which mixture is hotter? My Answers: My first train of thought is that there must be a conversion factor to this however I am not ...
Thursday, October 20, 2016 by Erik

Math
Length of equal sides of an isosceles triangle is 4cm less than twice the length of third side.find length of equal sides if perimeter of the triangle is 57 cm
Thursday, October 20, 2016 by Sandy's

Thursday, October 20, 2016 by No one

Math
My number has 2 tens and 2 ones what is my number?
Thursday, October 20, 2016 by Karma

Math
Find the 999th derivative of cos x. I got sin x.
Thursday, October 20, 2016 by Dave

math
a blacksmith has a rectangular iron sheet with the length of 10 cm. he has to cut out 7 circular disc of radius 1 cm. what is the minimum width of that rectangular sheet?
Thursday, October 20, 2016 by pk

Math
lim (cos(π/4 + h) - cos (π/4)) h->0 _________________________ h Somehow I ended up with cos(1).
Thursday, October 20, 2016 by Dave

Math
Use the quotient rule to find the derivative of cot x. I tried to solve this, but somehow I got (sec^2x)/(tanx)^2.
Thursday, October 20, 2016 by Dave

Math
Juana paid $1,200 for a sofa. The price of the sofa Ben purchased was 3/5 the price that Juana paid. How much did Ben pay for his sofa? Thursday, October 20, 2016 by Tan math The baker packs 36 bran muffins in boxes of 4 . Draw and label a tape diagram to find the number of boxes he packs. Thursday, October 20, 2016 by avery Math the sum of two numbers is 21 five times the first number added to 2 times the second number is 66 find the two numbers Thursday, October 20, 2016 by Anonymous Math Sarah cycle 30mi to grandmother house at a steady speed of ten miles mph if she leaves home at 2:00pm what time does she arrives? Thursday, October 20, 2016 by Emmer Math Use a triple integral to find the volume of the given solid. The solid enclosed by the cylinder x^2 + y^2 = 9 and the planes y + z = 19 and z = 2. Wednesday, October 19, 2016 by Anon Math Use a triple integral to find the volume of the given solid. The tetrahedron enclosed by the coordinate planes and the plane 8x + y + z = 4 Wednesday, October 19, 2016 by Anon Math Find center of mass of the lamina that occupies the region D and has the given density function ρ. D is the triangular region with vertices (0, 0), (2, 1), (0, 3); ρ(x, y) = 5(x + y) mass=30 Find center of mass Wednesday, October 19, 2016 by Anon math form a polynomial with a degree of 4 zeros 4,-3i,1 and multiplicity 2 Wednesday, October 19, 2016 by rachel Math Please explain Mike’s Sporting Goods sells elliptical trainers under two payment plans: cash and installment. Under the installment plan, the customer pays$90/month over 5 years with interest changed on the balance at a rate of 19%/year compounded monthly. Find the cash price for an ...
Wednesday, October 19, 2016 by Kal Jay

math
what is the length and width of a rectangle that has a square foot of 81
Wednesday, October 19, 2016 by Anonymous

Math
Kenny reads 4/9 page in 3/4 minute Kenny's unit rate is (what) page per minute
Wednesday, October 19, 2016 by John

Math
Put this fractions from shortest to longest 1/2,0.4,2/3,1.04?
Wednesday, October 19, 2016 by Kimy

math
A thumb drive has a storage capacity of 1,000,000,000 bytes. A hard drive has a storage capacity of 10,000,000,000 bytes. a. What is the total storage capacity of 1,000 similar thumb drives? Write your answer in exponential notation b. How many times as great as the storage ...
Wednesday, October 19, 2016 by Anonymous