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September 21, 2014

Homework Help: Math

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Recent Math Questions

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Math
The speed of the current in a stream is 4 mi/hr. It takes a canoeist 96 minutes longer to paddle 13 miles upstream than to paddle the same distance downstream. What is the canoeist's rate in still water?
Monday, September 15, 2014 at 8:56pm

Math
Sarah bought 1.4pounds of seed that costs 0.4 per pound. How much does Sarah pay for the seed? You are suppose to use a 10x10 decimal model
Monday, September 15, 2014 at 8:34pm

Math
A ramp long rises to a platform. The bottom of the platform is from the foot of the ramp. Find , the angle of elevation of the ramp. Round your answer to the nearest tenth of a degree.
Monday, September 15, 2014 at 8:27pm

Math help
Explain whether the following given are closed under addition: {x|x ¸ W and x>100}
Monday, September 15, 2014 at 8:21pm

Math
A pizza box with a square base is to be made from a rectangular sheet of cardboard by cutting six 1-inch squares from the corners and the middle sections and folding up the sides (see the figure). If the area of the base is to be 144 in^2, what size piece of cardboard should ...
Monday, September 15, 2014 at 8:18pm

Math
How can multiples and factors relate?
Monday, September 15, 2014 at 7:39pm

Math
Write a word problem using 9 and 10 as factors. Write an equation to solve the problem
Monday, September 15, 2014 at 7:32pm

math
When this 3 digit number is rounded to the nearest hundred, it rounds to 300. The digit in the ones place is 4. The sum of the digits in the 3 digit number is 11. What is the number?
Monday, September 15, 2014 at 7:29pm

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 number of spring rolls and cheese cubes. What is the greatest number of plates she can make using all of the ...
Monday, September 15, 2014 at 7:23pm

5th grade math
the park family is staying at a hotel near an amusement park for 3 nights. the hotel costs $129 per night. how much will their 3-night stay in the hotel cost.
Monday, September 15, 2014 at 7:03pm

5th grade math
vidal bought 2 pizzas and cut each into 8 slices. he and his friends ate 10 slices. write an expression to match the words.
Monday, September 15, 2014 at 7:01pm

Math
Janelle won 27 tickets at the fair. She traded the tickets in for 9 prizes. each prize was worth the same number of tickets. How many tickets was each prize worth?
Monday, September 15, 2014 at 6:58pm

5th grade math
Joan has a cafe. Each day she bakes 24 muffins. she gives away 3 and sell the rest. Each day, she also bakes 36 bagels. she gives away 4 and sells the rest. write an expression to represent the total number of muffins and bagels joan sells in 5 days.
Monday, September 15, 2014 at 6:56pm

Math
There are 8 plates. Jamie puts 9 strawberries on each plate. How many strawberries are on the plate?
Monday, September 15, 2014 at 6:54pm

math
find the values of the variables 32 40 96 120 112 x 144 180 k 230 how do you do this? what is the formula? Thank you
Monday, September 15, 2014 at 6:25pm

math
A bicyclist rides off a roof at 15.2 \frac{m}{s}. The roof is 9.8 m above the ground. How far from the edge of the building does the bicyclist land? Use SI units in the second box.
Monday, September 15, 2014 at 6:19pm

math
A train is going directly South at 60 mph. An action-movie star is atop the train, running North at 6 mph. Relative to someone standing on the ground, how fast is the action-movie star moving, and in what direction? North is positive and South is negative. Use SI units in your...
Monday, September 15, 2014 at 6:19pm

math
You fire your potato gun horizontally from shoulder height, which is 190 cm above the ground. The potato strikes the ground 30 m away from you. What was the initial speed of the potato?
Monday, September 15, 2014 at 6:18pm

math
Why is 1 not a prime number?
Monday, September 15, 2014 at 6:10pm

math
cup 3/4 full 1/6 is poured out. what fractionof the whole bottle is poured out x fractions= whole # .
Monday, September 15, 2014 at 5:27pm

math
Write -1/9, 4/7, 7/4 in order from least to greatest
Monday, September 15, 2014 at 4:19pm

Math
Find the distance between points (6, 16) and (–1, 14) to the nearest tenth
Monday, September 15, 2014 at 4:19pm

Math
Two boats leave whitby harbour at the same time one boat heads 18 km to it's destination and the other boat heads 11 km to its destination. If the boats headed on a course 70 degrees apart, what is the distance between the boats ?
Monday, September 15, 2014 at 4:13pm

Math
My teacher says to create a St. Ives poem and solve it, but I don't know what to do. Help?
Monday, September 15, 2014 at 4:10pm

math
what is the halfway point between the following numbers 2000 and 4000
Monday, September 15, 2014 at 3:54pm

Math
It's greater than 700 000 The sum of all it's digits is 14 It has no zeros The hundreds digit is 3
Monday, September 15, 2014 at 3:49pm

Math Proof
Prove: Let a,b exist in the reals with a<b, (i) For the open interval E=(a,b) prove that the inf E=a and sup E=b (ii) for the closed interval F=[a,b], prove that inf F=a and sup F=b.
Monday, September 15, 2014 at 3:47pm

math
60x^4-5x^3+x^2-30/10
Monday, September 15, 2014 at 3:28pm

Math
Find the other endpoint given the first endpoint and the midpoint A = (3, 5) B = (5, -11) find C
Monday, September 15, 2014 at 3:19pm

7th grade math
Can you check the following? 1. A recipe for muffins needs 1/2 cup of milk. You are making 3/4 of the recipe. How much milk do you need? Ans: (1/2) / (3/4) = (1/2) x (4/3) = 2/3 cups 2. Betty is running on a track that is 2/3 of a mile long. So far she has run 1/2 of the way ...
Monday, September 15, 2014 at 2:56pm

Math
explain whether the following given are closed under addition: B={0, 1} T={0, 4, 8, 12, 16, ...} F={5, 6, 7, 8, 9, 10,...} {x|x E W and x>100}
Monday, September 15, 2014 at 2:52pm

Math 221
A distribution center receives shipment of a product from three different factories in the quantities of 60, 30 and 20. Three times a product is selected at random, each time without replacement. Find the probability that (a) all three products came from the second factory and...
Monday, September 15, 2014 at 1:11pm

Math
If I want to reflect f(x) = -3x + 5 over the x-axis, would the new equation be f(x) = 3x - 5? Or is it -f(-x) = 3x - 5?
Monday, September 15, 2014 at 12:55pm

Math 221 Week3
A probability experiment consists of rolling a 6 sided die. Find the probability of the event below: rolling a number less than 3? The probability is
Monday, September 15, 2014 at 12:49pm

Math 221 Week3
A distribution center receives shipment of a product from three different factories in the quantities of 60, 35 and 25. Three times a product is selected at random, each time without replacement. Find the probability that (a) all three products came from the second factory and...
Monday, September 15, 2014 at 12:36pm

8th grade math
what is 5² / 5⁵ = ? other options are: a) 5¹ b) 5³ c) 5⁴ d) 5² **** Is 5² right?
Monday, September 15, 2014 at 12:15pm

Math
The observation for three materials shows: Material A absorbs all the visible light (opaque) Material B is transparent to all the visible light (transparent) Material C absorbs blue light but is transparent to red light. (Blue light has wavelength 0.4 m, red light has ...
Monday, September 15, 2014 at 10:48am

Math using quadratic equation
The freight train runs 12miles per hour than a passenger train. It runs 65miles in the same time that the passenger train runs 165miles find the rate of each train. I dont really know the formula using quadratic im sorry
Monday, September 15, 2014 at 7:36am

Math using Quadratic equation
The area of a square is 196cm2(squared), find the measure of one side. Thank you,, this is my assign. In math1, im using the formula A=s*s but i need to solve this using quadratic equation.
Monday, September 15, 2014 at 7:27am

math
Suppose someone gives you 8 to 2 odds that you can not roll two even numbers with the roll of two fair dice. This means you win $8 if you succeed and you lose $2 if you fail. What is the expected value of this game to you? Should you expect to win or lose the expected value in...
Monday, September 15, 2014 at 3:20am

math
A point,X ,is 25 feet from the center of a circle.If the diameter of the circle is 14 feet,what is the length (in feet)of a tangent from point X to the circle? a. square root 29 b. 18 c. 15 square root 2 d. 24 e. square root 673 please answer and explain
Sunday, September 14, 2014 at 10:47pm

physics, math
Part A & B are 0.10m apart. A point charge of +3.0*10^-9C is placed at A and a point charge of +1.0*10^-9C is placed at B. X is a point on the straight line through A and B. If a third charge C or charge 1.5*10^-9 is placed at X, where must X be for the resultant force to be ...
Sunday, September 14, 2014 at 9:43pm

Math
How do you write the transformation of a quadratic function two units right from its parent function? Is it y = (x + 2)^2?
Sunday, September 14, 2014 at 9:14pm

Math
A Social Security number has seven digits. How many Social Security numbers are possible?
Sunday, September 14, 2014 at 9:14pm

Math
An exam consists of six true-or-false questions. Assuming that every question is answered, in how many different ways can a student complete the exam? In how many ways may the exam be completed if a penalty is imposed for each incorrect answer, so that a student may leave some...
Sunday, September 14, 2014 at 9:11pm

Math
What is the definition of a multiple
Sunday, September 14, 2014 at 9:07pm

math
given the domain of g(x) is (-3,5) and the range of g(x) (-10, 10) find the domain and range of the transformed function 4g(x-7)+12
Sunday, September 14, 2014 at 8:46pm

Math
Use the quadratic formula to solve the equation for x in terms of y and y in terms of x. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.) 2x^2 + 7xy + 1 − y^2 = 0 (a) x in terms of y x = (b) y in terms of x y =
Sunday, September 14, 2014 at 8:31pm

Math
A box with an open top is to be constructed by cutting a-inch squares from the corners of a rectangular sheet of tin whose length is twice its width. What size sheet will produce a box having a volume of 32 in^3, when a = 2? width in length in
Sunday, September 14, 2014 at 8:30pm

Math
A pizza box with a square base is to be made from a rectangular sheet of cardboard by cutting six 1-inch squares from the corners and the middle sections and folding up the sides (see the figure). If the area of the base is to be 144 in^2, what size piece of cardboard should ...
Sunday, September 14, 2014 at 8:28pm

Quick math help
An angle with a measure of 89.9 degrees... Would it be a right or an acute angle?
Sunday, September 14, 2014 at 7:51pm

PLEASE HELP! Math
I really need help with this one question on my math pretests and I have no idea what to do! The question is: Mandy begins bicycling west at 30 miles per hour at 11:00 am. If Liz leaves from the same point 20 minutes later bicycling west at 36 miles per hour, when will she ...
Sunday, September 14, 2014 at 7:40pm

Math
12 cards are drawn with replacement from an ordinary deck of 52 cards. What is the probability that 4 queens of hearts, 4 aces of spades, and 4 kings of clubs are drawn?
Sunday, September 14, 2014 at 7:34pm

Math evaluating expressions with rational numbers
Liquid nitrogen freezes at -346 degrees F and boils -321 F. Janice gradually heats frozen nitrogen 1 1/2 degrees several times over an hour. 1)Define variables for the number of times Janice increases the temperature and the temperature of the liquid nitrogen after the ...
Sunday, September 14, 2014 at 7:17pm

math
How many gallons of water are needed to raise the level of a swimming pool 75' x 42' four inches above its present level? ( 1 cubic foot= 7 1/2 gallons )
Sunday, September 14, 2014 at 7:11pm

math
If 4% of motorists on the Turnpike leave at a certain exit and 5% of these go to one particular motel for lodging,out of every 10,000 motorists how many motorists may be expected to go to this motel?
Sunday, September 14, 2014 at 7:08pm

math
Evaluate x5-13 if x =-2
Sunday, September 14, 2014 at 6:27pm

math
A company has determined that the profit, in dollars, it can expect from the manufacture and sale of tennis racquets is given by P = −0.01x2 + 130x − 180,000. How many racquets should the company manufacture and sell to earn a profit of $174,900
Sunday, September 14, 2014 at 5:50pm

math
In order to pass a physical education class at a university, a student must run 1.0 mi in 12.5 min. After running for 10.0 min (assume constant speed), she still has 510 yd to go. What constant acceleration does she need over the final 510 yd in order to make it?
Sunday, September 14, 2014 at 5:45pm

math
Clark is cooking a 12 pound ham. The ham needs to be cook 20 minutes for each pound. Clark wants to serve the ham at 5 p.m. What is the latest time he should place the ham in the oven.
Sunday, September 14, 2014 at 5:29pm

math
Riley wants to raise $2550 for a fundraiser walk. He needs to ask people to pledge money for each mile that he walks. How many people will he need to get pledges from in order to reach his goal.
Sunday, September 14, 2014 at 5:20pm

math
Complete the pattern 82,71,60,?,?
Sunday, September 14, 2014 at 5:15pm

Math
Ok so I need to write a equation for this jasmine paid $25 for 2 binders and 1 pack of pens. The pens cost $5. What equation could I write to find out the price per binder? Could it be 25-5=x
Sunday, September 14, 2014 at 5:14pm

math
Complete the pattern 4,13,22,?, ?
Sunday, September 14, 2014 at 5:03pm

MATH
Brenda donates part of her salary to the local childrens hospital each month by having $15 taken out of her monthly paycheck. Write an integer to represent the amount taken out of each paycheck. Find an integer to represent the change in the amount of money in Brenda's ...
Sunday, September 14, 2014 at 4:56pm

math
after how many complete rotations will a bicycle wheel with a diameter of 65cm cover a distance of 2km
Sunday, September 14, 2014 at 4:53pm

math
you are ordering pizza for a party. One pizza serves 8 people. You are expect that there be 35 people. How many pizzas should you order.
Sunday, September 14, 2014 at 4:48pm

math
The length of a rectangle is five less than three times its width. Find the dimensions of the rectangle if its area is 782. I get 18.84 x(3x-5)=782. The book says 17 m by 46 m
Sunday, September 14, 2014 at 4:18pm

math
The length of the shadow of a pole on the level ground increases by 60 meter when one angle of elevation of the sun changes 54° to 32°.calaulate the height of the pole,correct to three significants figures.
Sunday, September 14, 2014 at 4:07pm

Math
A box manufacturer wants to produce an open box for which the volume is 2 cubic meters and the length is twice the width. What actual dimensions of he box will require the least amount of material? Work: V = 2m^3 2m^3 = (w)*(2w)*(h) Possible dimensions: length width height ...
Sunday, September 14, 2014 at 3:57pm

math
how could you rewrite the expression (3+5)+8 using the Associative property of addition
Sunday, September 14, 2014 at 3:51pm

math
Amy is building a house. The basement floor is at -15 feet . The roof of the house is above the ground 25 feet . Express the comparison of heights as an inequality . Explain the meaning of the inequality
Sunday, September 14, 2014 at 3:41pm

math
(12^5)^3 = 12 ( I have to find the exponent) my answer is 15 for the exponent
Sunday, September 14, 2014 at 2:05pm

Math
Use distributive property and simplify the expression. 4 + 2(3x - 1) + 9 - 6x + 15 - 5x + 14 - 3x + 14 - 6x + 11 *my answer* I wanna make sure my answer is right. 3.82e+7 (there is no multiple choice) my answer is 38200000
Sunday, September 14, 2014 at 2:01pm

Math!
1) What is the value of 19 + 5a^4 + 3b^2 when a = 2 and b = -4? (this is not a multiple choice question) but my answer is 147. 2)Combine the like terms to simplify the expression: 4 + 7xy^2 + 5y^3 + 10x -4xy^2 - 8x - 4y^3 + 9 - y^6 + 3x^2y^2 + 10x + 13 - y^3 + 3xy^2 + 2x + 13...
Sunday, September 14, 2014 at 1:05pm

Math 221
find the probability of the event rolling a number less than 6
Sunday, September 14, 2014 at 12:56pm

Math
In how many arrangements of the letters BERKELEY are all three E's adjacent? I think its (5!)*(6) i'm looking for some clarification.
Sunday, September 14, 2014 at 12:29pm

Math
If a plane has intercepts at 2a, 3a, and 4a along the three Cartesian coordinates where a is the lattice constant of the cubic cell, (i) find the Miller indices of the plane and (ii) find the distance between the neighboring planes parallel to this plane
Sunday, September 14, 2014 at 12:27pm

8th grade homework
Please help me I beg of you! My math teacher is awful and I have no idea how to do my pretest and she's picky about showing my work so it would be helpful if you could explain :) 1.six is subtracted from a number. The result is devided by four. This result is added to 10 ...
Sunday, September 14, 2014 at 12:20pm

Math
What is the answer to page 31 of pre-algebra with pizzazz (what do hair dressers do?) ?
Sunday, September 14, 2014 at 11:27am

math
The farmer wants to use the 500 m to an enclosure divided into two equal areas, What is the total maximum area that can is achieved with the 500 m fence. using differential calculus to the solution.
Sunday, September 14, 2014 at 10:03am

Math
6m by 5m by 4m , rectangular tank How do you know which one is the height?
Sunday, September 14, 2014 at 9:37am

Math
Mrs lim bought apples at a cost of $150 from the wholesaler. If she sells 1 pace of 5 apples at $2.40, what is the least number of apples she must sell in order to make a profit? I am kind of sure I need to use HCF(highest common factor) in this question.. I might be wrong ...
Sunday, September 14, 2014 at 7:10am

math
Determine the rule when gradient =2,x intercept =3 .can. anyone please explain,cause I know y intercept =c,but I don't know x intercept,thanks
Sunday, September 14, 2014 at 6:13am

math
A rocket ascends at an angle of 60.0˚ with the horizontal. After 1.00 min it is directly over a point that is a horizontal distance of 12.0 km from the launch point. Find the speed of the rocket.
Sunday, September 14, 2014 at 5:49am

Math
7^x-9=4^2x
Sunday, September 14, 2014 at 5:38am

Math
Find the equation of the graph of all points such that the difference of their distances from (10,0) and (2,0) is always 1.
Sunday, September 14, 2014 at 4:55am

Math
3^2x-3^x-24=0 Could you also teach me the process in answering it?
Sunday, September 14, 2014 at 3:47am

Math
Find how much interest $25,000 earns in 4 years in a certificate of deposit paying 8.5% interest compounded quarterly.
Saturday, September 13, 2014 at 11:35pm

math
Question 1.1. For each of the following questions, choose the correct answer. What is another word for rotation? (Points : 1) flip turn slide fall Question 2.2. What's another word for a translation? (Points : 1) flip turn slide fall Question 3.3. Maria slides a triangle ...
Saturday, September 13, 2014 at 11:05pm

Math
I wrote question you have not dissolved
Saturday, September 13, 2014 at 10:56pm

Math
Please solve the Q look ( nina, math)
Saturday, September 13, 2014 at 10:41pm

Math
What is the parent function of h(x) = -x^2? Is it h(x) = x^2 or h(x) = -x^2? How can I describe h(x) = -x^3 as a transformation of the parent function of a cubic function? Do I just say that it is a reflection, or is there a way of saying it with numbers, as in h(x) = x^3 - 4?
Saturday, September 13, 2014 at 10:13pm

math
find two numbers whose difference is 153
Saturday, September 13, 2014 at 10:06pm

Math Proof
Find a rational number and an irrational number between x=8.9949926 and y=8.995
Saturday, September 13, 2014 at 9:57pm

Math
Analyze Greg saw these numbers on a license plate while driving: 2,4,5,3 and 9 . Write one possible number that could be on the license plate. Help me,,
Saturday, September 13, 2014 at 8:17pm

Math
Challenge Write a 6 - digit number that has a 5 in the ten thousand place , a 3 in the thousands place ,a 4 in the tens place , and one digit that is 0.underline the 5,3,4,and the 0 in your number .is this the only number you could have written ? Expllain your answer and ...
Saturday, September 13, 2014 at 8:02pm

math
Angles B and F are corrsponding angles formed by a treversal intersecting two parallel lines. Angle B has a measure of 44. what is the measure of Angle F?
Saturday, September 13, 2014 at 7:47pm

math
find the distance, to the nearest tenth, from T(4,-2) to U(-2,3).
Saturday, September 13, 2014 at 7:10pm

math
2.Calculate the growth rate of Asset J dividends, we have to assume that future dividend payments will grow at a constant rate into the future forever. This constant rate can be estimated by calculating the average growth rate from the past dividends. Calculate Asset J’s ...
Saturday, September 13, 2014 at 7:10pm

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