# Math

## Recent Math Questions

mATH
1. Compare using <,>, or =. -15 and -21 A < (MY ANSWER) B > C. = 2. Which nuumber is greater than -24? A -42 B-27 C -16 (MY ANSWER) D -30 3. Which set of integers is ordered from greatest to least. A -13, 4, 0, -8 B -5, -2, 3, 1 C -12, -8, -4, 7 (MY ANSWER) D 4,6,7...

math
suppose that it takes 100 workers 6 weeks to build 4 miles of highway. how many miles of highway could 160 workers build in 15 weeks

Math
1/2 of a group of chickens tried to cross the road. Only 3/4 of those chickens made it to the other side. What fraction of the original group of chickens made it to the other side.

Math
A kangaroo hopped 1/3 of the distance to the lake with her baby in her pouch. She hopped the remaining 7040 yards without her baby in her pouch. How many miles did the kangaroo hop to the lake? 1 mile = 1760 yards

I need someone to write this out for me like in a discussion so I can read it and write it in my own words please ASAP! Identify two regular and two irregular polygons in your home or community. How do you know they are regular or irregular? Give one example of each regular ...

Math
The city council gave a questionnaire to its citizens, asking them to rank their priorities for next year's budget. People were asked to rank the following four choices: (P)olice, (R)oads, (S)chools, and (T)rash removal. The results are summarized in the table below. ...

Math
There were d passengers in the train. 15% of all of them went in the first car, 20% went in the second car. How many passengers were in the rest of the train? D - 0.15d + (0.15d*0.2) + ? 0.15 + 0.03 = 0.18 I don't know what to do next?

Math
Four candidates running for mayor receive votes as follows: Ito: 16,032; Johnson: 36,072; Kennedy: 8,016; Lieberman: 12,024 How do I find the majority, if there is one? Thanks?

Math
To save money, you put \$200 in your bank account each week. After saving for 4 weeks, you have \$1,700\$ dollars in your account. Which equation models your savings account balance at the end of each week? A.) y-4=200(x-1700) B.) y-1700=200(x-4) C.) y-200=1700(x-4) D.) y-1700=...

Math
The roof of a solar house is elevated by an angle of 50° at the front and by an angle of 40° at the back. Write an equation to determine the angle at the peak. Use <P. solve the equation

Math
I have a rope that is 3.6 meters long if I cut the rope into two pieces one piece is 1.925 meters long how long is the other piece of rope

Math
I really need help on my last question if anyone can help me. Use the function g(X)=-X+2 with initial values of 4,2,and 1. What happens after many iterations with all three initial values? How do the results of all three iterations relate to each other?

math
Marcus wants to perdict the next student council president.He polls every fourth person from each grade level as they exit the cafeteria.In his poll, 65% chose Sophia.So, Marcus perdicts Sophia will win the election.what type of sample was taken

Math
what is the amount of sales tax owed on a \$350 laptop computer if the tax rate is 6% off

math
Use the variable v to represent Vanessa's score.

Math
A pprogram that keeps reading positive numbers until the user enters a zero and print the smallest number

Math
Use the distributive property to write an expression equivalent to 14x+21y

Math. Plz walk me though
A picture of the Sun has 12 identically matched points. Suppose you line up two suns directly on top of each other. What is the least number of degrees that you can rotate the top sun so that so the two Suns are perfectly aligned again. Can someone please explain how this may ...

Math, Algebra (fast help would be nice)
So I did this whole math test and before I could hit "finish", my computer died and nothing saved. I have no memory of how I figured them out. Could you guys help please? Find the lateral area of the square pyramid. Show all steps. Base: 8m Length(height): 22m Find the surface...

Math
Y=x^2_2

math
You are designing a rectangular playground. On your scale drawing, the vertices of the rectangle are (6, 3), (6, 5), and (8, 3). What are the coordinates of the fourth vertex?

Math
I have got three more dimes than quarters. The total value of my change is \$2.75. How many of each coin have I got?

Math
Write the equation and solve the following problems 1. Seven more then three times a number is 22. What is the number? 2. One half a number diminished by six is 14. What is the number? 3. The sum of two consecutive numbers is 131. What are the numbers. 4. One number is 5 more ...

Math
You begin to fill a bucket with water at 9 am. Each minute you double the amount of water in the bucket. If it takes you 1 hour to fill the bucket, at what time is the bucket one-quarter full?

Math
the length of a rectangular window is 6 feet more than its width, w. the area of the window is 100 square feet. which equation could be used to find the dimensions of the window?

MATH
choose the appropriate metric unit for the mass of concrete in a section of sidewalk? a:kilogram b:milligram c:gram d:meter

Math
The sum of two numbers is 80 and if subtracted the results is 5 What are thet two numbers

math
Found the area of TrapeziumABCD whose parallel side are 14cm and 24cm.its non parallel sides are 8cm and 6cm

Math
Help. solve simultaneously x^2+y^2=13 and x^2-3xy+2y^2=25

Math
Prya spent 1/2 of the day hiking. She was lost 5/6 of the time that she was hiking. What fraction of the day was Prya lost?

Math
To make a sports drink for the football team , Jayden filled 9/10 of a large cooler with water. Then, he filled the remaining space with 6 cups of sports drink concentrate. 1 gallon = 16 cups How many gallons of sports drink did Jaylen make?

Math
How many equal line segments are needed to make a row of 35 squares?

Math
18. Kim deposited \$1422 in a savings account. How much would she have in the account after 5 years at an annual simple interest rate of 3%.

which Formula should be used to find the area of the composite shape?? A= 4(1/2 x bh ) + 1w A= 4bh + 1w A= 2bh + 1w A= 2bh + bh

Math
Determine the projection of u = 1.6i + 3.3j in the v = -2.1i - 0.5j direction a. 0.8i +0.2j b. 2.3i = 0.5j c.-0.6i-1.3j d. -1.2i-1.1j

math
Consider the function: (-2x^2 - 2x-4) y = 2x^2 - x +10 Find y â€² using implicit differentiation. Do not solve for y. What is the slope of the tangent at (x,y) = (2,âˆ’1)? Find y â€² by solving for y and using the quotient rule. What is the slope of the tangent ...

math
Find the angle between u=(8,-3) and V=(-3,-8). Round to the nearest tenth of a degree

Math
How many equal line segments are needed to make a row of 35 squares?

Math Fractions
Priya spent 1/2 of the day hiking. She was lost 5/6 of the time that she was hiking. What fraction of the day was Priya lost?

AP Physics 1
This isnt exactly a hw question... but for anyone who knows: Im considering to take AP Physics next year as a challenge. I'm going to be taking pre-calc next year ( i already took my algebras) and im not too great in math but im good at memorizing and retaining info... will AP...

discret math
Consider the graph below. a) Does the graph have an Euler path? If so, find such a path. If it does not, give an argument to show why not such a path exists. b) Does the graph have an Euler circuit? If so, find such circuit. If it does not, give an argument to show why not ...

Math fractions
Jackie loves to cook fried foods. She recorded the total amount of oil that she used each month in the table below. In January she used 3/5 of the amount of oil that she used in Fedruary. Fill in the amount of oil that Jackie used in January in the table below. Month. Gallons ...

Math fractions
Carlos spent 1 1/4 hours doing his math home work. He spent 1/4 of this time practicing his multiplication facts. How many hours did Carlos spend practicing his multiplication facts? Need an answer in numbers and an answer in fractions.

Calculus -math
The Perfect Pizza Parlour estimates the average daily cost per pizza, in dollars, to be c(x)=0.00025x^2 +8x +10/x, where x is the number of pizzas made in a day. A) Determine the total cost at a production level of 50 pizzas a day B) Determine the production level that would ...

Math
Kellan's neighbor went out of town for 9 days. Each day her neighbor was gone, Kellan earned \$7 for walking her neighbors dog and \$2 for watering her neighbors plants. Write a numerical expression with parentheses for the total amount of money Kellan earned.

math
a bag holds 6 green 4 red 5 yellow and 3 purple marbles what is the probability of choosing a purple marble

Math
The square root of number that is two bigger than k is twice as big as the square root of the number one less than k. What is k?

math
Find the degree 7 Taylor polynomial for f(x )= 2cos(3x) centered at x = 3π/2 . Thanks for your help

Math
Sunny is standing still, holding the end of a 15-inch rope, while her horse runs in a circle around her. How far does the horse run to complete one circle around Sunny? ~ How do I set this up?

math
Use logarithmic differentiation to find y ′ for the following function. x^3 = e^−4y4−9y

Math
I need help with this.The question is Fedinand has a rectangular square garden.The garden is 7 1/2 feet wide.The area of the garden is 150 square feet.What is the length of Ferdinand's garden?Write the division needed for this problem.Do not solve.

MATH
asolid metal cube of side 10cm is melted down and recast as solid metal sphere.calculate the radius of the sphere.Take Pie=3.142

math
the perimeter of a football field is 204cm find the length of the field if it's breadth is 24cm TEACHER

Math 7th
Triangle ABC is shown on the graph below. link to picture a. Triangle ABC is reflected over the y-axis. What are the coordinates of the reflected triangle? b. Describe in words what happens to the x-coordinates and the y-coordinates of the original triangle's vertices as a ...

Math
N÷7=30

math
Consider the function:(-2x^2 +3x -7) y= -2x^2x +3x +17 Find y ′ using implicit differentiation. Do not solve for y. What is the slope of the tangent at (x,y) = (−1,−1)? Find y ′ by solving for y and using the quotient rule. What is the slope of the tangent when x = -1...

math
A vertical mast is on top of building and is positioned 6 ft from the front edge. The mast casts a shadow perpendicular to the front of the building and the tip of the shadow is 90 ft from the front of the building. At the same time, the 24 ft building casts a 64 ft shadow. ...

Math
Use the display of data to find the standard deviation. A bar graph titled Score with a horizontal axis labeled from 5 to 11 in increments of 1 and a vertical axis labeled Frequency from 0 to 12 in increments of 2 contains three vertical bars with labels and heights as follows...

math
An investment club placed \$36,000 into two simple interest accounts. On one account, the annual simple interest rate is 8.5%. On the other, the annual simple interest rate is 3.5%. How much should be invested in each account so that both accounts earn the same annual interest?

math
in the middle circle have rectangle with length 12 and wide 5, find shaded area between rectangle and circle

Math- Alegebra
HELP ME! On a number line, show all values of x for which… |x| >0 (Sorry about how I can't post the number line and the tools to use but I can explain it).

math
a new product is to be promote in the market. The sales in the first week is estimated to be 5000 unit with an increase of 1500 each week during the product's lifespan. Find the formulas for the number of sales, S(unit), in the nth week.

math
The graph represents the cost cc (in dollars) of buying nn tickets to a baseball game. (1,10) (2,20) (3,30) a. Should the points be connected with a line to show all the solutions? Explain your reasoning. make sense to draw a line between the points to show all of the ...

math (venn diagrams)
70% of 7 graders have iPhone and 60%are in chorus. However, 15% of 7th graders are neither in chorus or own phone. What % of students have an iPhone and are not in chorus

math
a rectangle with dimension 30/7 m by 20/7 m is to be completely tiled with identical square tiles with no overlapping or cutting. Find the side length of the largest square tile which will accomplish the task.

math
Given that the number 1372x413 is divisible by 11, where x is a digit, then the value of x is To find if number is divisible by 11, difference of sum of digits at even places and sum of digits at odd places should be either 0 or 11. is this correct?????

Math
I have 3 more tens than 27.what number an i?

Math
An alloy contains zinc and copper in the ratio 7:9. Find the weight of copper if it has 31:5 kg of zinc

Math
You plan on borrowing \$14000 at 16% APR for 5 years. Use Web Loan Calculator to find the monthly payment. Find the total interest paid on this loan for the first 20 months. Set up a spread sheet to answer. Here is an example of what it should look like. All cells in lower ...

Math
Bill paints murals. He recorded the total amount of white paint that he used for his murals each month in the table below. In April Bill used 2/3 of the amount that housed in May. Fill in the amount of white paint BIll used in April in the table below. Month gallons of white ...

Math Fractions
To make a sports drink for the football team, Jaylen filled 9/10 of a large cooler with water. Then, he filled the remaining space with 6 cups of sports drink concentrate. How many gallons of sports drink did JAylen make? 1 gallon = 16 cups

Math word problems
Louise mowed a neighbors yard to earn \$25. She mowed a few more yards and earned an additional \$75. She continued to mow all of the yards each week for a total of 5 weeks, earning money at the same rate. At the end of the 5 weeks, she spent \$250. Write a numerical expression ...

Math
George is going to buy a new Chevy Jupiter for \$20300. The dealership will offer a loan for the total value of the car at 9.75% APR for 4 years. Round all answers to the nearest penny. Use Web Loan Calculator to answer part of this question Okay so i understand how to do it, ...

Math
R varies partly as x and parly as the square of y. R=21 when x=y=1 and R=48 when x=y=2.Express R. in terms of x and y.

Math 120
A construction company is planning to bid on a building contract. The bid costs the company \$1800. The probability that the bid is accepted is 1/5. If the bid is accepted, the company will make \$46,500 minus the cost of the bid A) what is the expected value in this situation...

6th gr. math
c=s The variable s represents number of additional necklaces and the variable c repres. total # of diamond neck.If louie has 3 neck. in his hand how many are diamond necklaces? please help me solve

math
The store employee works 35 hours per week. Which inequality can be used to find the dollar value, x, of weekly sales that the employee must make to earn more than \$400 per week?

math
what is 2x^2=8 graphed?

Math
1.Suppose that the function f(x) = 5x + 3 represents the number of cars that drive by in x minutes. How many cars will drive by in 10 minutes? a. 80 b. 53 c. 50 d. 35 2. Buses on your route runs every 8 minutes from 7:00am to 11:00am. You arrive at the bus stop at 8:19am. How ...

math/science
If y is directly proportional to √x ,will on increasing y by 200%, x will become 4 times

math
1.estimate the sircumference of a circle with the given radius or diamiter. use 3.14 for pie. the raius is 24 and the answers are:A27 B79 C1809 D151

As a computer programmer, you have to define the movements of a battleship across a virtual grid. Will you program the transformation from the original position (Figure I) to the final position (Figure II) as a translation, reflection, or rotation?

Math
A manufacturing company wants to minimize the cost of materials for a pop can which needs to hold 640 mL. Find the radius and height (in centimeters) of the cylindrical can with minimum surface area that holds this volume. Give your answer as a decimal number accurate to at ...

math
A microwaveable cup-of-soup package needs to be constructed in the shape of cylinder to hold 550 cubic centimeters of soup. The sides and bottom of the container will be made of syrofoam costing 0.03 cents per square centimeter. The top will be made of glued paper, costing 0....

Math
4+2(exponent 5) divided by 9. Add parentheses to make each expression equal 4

Last one At present, Mark's age is x^2 years and Peter's age is x years. When mark is 10x years, Peter will be 3x years. What are their present ages? Question is kind of confusing to me, so again i just need help forming the equation. Thanks.

The base of a triangle is 6 cm longer than its height. If the area of the triangle is 140cm^2, what is the length of the base? Im just confused on how the equation should be formed. Thanks.

math
The height of a person above the ground on a Ferris wheel is given by the function h(t)=9 sin {pi/20 (t- pi/2))+ 12 where h(t) is the height in meters of person t seconds after getting on a) how long does it take the Ferris wheel to make one complete revolution b)what is the ...

Two consecutive even numbers have a product of 288. What are the numbers? The answer I got through trial and error was 18 and 16. Is there a way for me to form the question into an equation and work that out to find the answer, instead of just guessing numbers? Thanks.

Math
The original price of stock was D dollars.the selling price for share of the same stock at latter date was represented by the expression 1.15(0.95d ) which description could explain what happened to the price. OF share of stock A the price decreased by 5% and then increased by...

Math
There is 5 gallons of pineapple juice and I have a six oz glass how many drinks do I get out of the five gallon jar ?

Math
Shania bought a new computer for 1,550 from computer 'r' us. If the value of the computer depreciates at a rate of 5.35%per year, when will the value of the computer reach 825 ?

math
Confused!!! Six is three times as much as 2. Six is three times more than 2. Which one is correct???

math
2cos(1/2x)-cos(1/2x)=0 , where 0<x<2pi determine the complete solution for the equation

Math
particle P of mass m kg is attached to two fixed points A and B by two identical model springs, each of stiffness k and natural length l . The point A is at a height / l above the point B. The particle is free to oscillate vertically under gravity. The stiffness of each spring...

math
The inner circumference of a circular track is 440 m. The track is 14 m wide. Find the diameter of the outer circle of the track.

math
if one of the zeroes of a cubic polynomial x^3+ax^2+bx+c is -1.find the product of other 2 zeroes

math
Sasa, June and Don are waitresses. When they compare their tips at the end of their shift they notice that Juice earned 30c for every 40c that Sandy earned while Juice earned 20c for every 25c that Dido earned. How much would Dido earn if Sandy earns \$36?

Math
The amount of radiocarbon present after t years is given by y=ae^-.0001216t . find the half live of 14

Math
If current trends of burning fossil fuels and deforestation continue, then future amounts of atmospheric carbon dioxide in parts per million (ppm) will increase exponentially. In the year of 1990, there was 353 ppm. A)In the year of 2000, there was 375 ppm of carbon dioxide, ...

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