Sunday
April 26, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

Math
Draw and label a diagram of each figure described below and calculate its volume. A) a sphere with a radius of 2 m. B) a cone with a diameter of 8 ft and height of 10 feet.
Saturday, April 11, 2015 at 9:42pm

Math
As of the 2012 Summer Olympics, the world record for women's long jump is 24 feet, 8 inches. How much longer is the world record than Sheila's first jump? Express your answer in yards. Sheila first jump measured 3 yards, 2 feet, 8 inches. Do I convert to inches or ...
Saturday, April 11, 2015 at 9:38pm

Math
Which of the following are equivalent to 8/27? A. 3^-3 * 2^3 B. (3/2) ^-3 C. 2^3/3^-3 D. (2^-3 * 3^3) ^-1
Saturday, April 11, 2015 at 8:23pm

Math
A probe launched from Earth to Mars is traveling at an average speed of 1.8 * 10^4 kilometers per hour. If the distance between Earth and Mars is approximately 2.25 * 10^6 kilometers, about how many hours will it take the probe to reach Mars? PLEASE EXPLAIN YOUR REASONING
Saturday, April 11, 2015 at 8:16pm

Math
What is the equation of the line that passes through all the points in the table? x -4 -2 0 2 y 0 -4 -8 -12 A. y= -2x-8 B. y= -2x-4 C. y= -4x-8 D. y= -4x-4 PLEASE EXPLAIN PLZZ
Saturday, April 11, 2015 at 8:07pm

Math
What is the approximate volume of this sphere, which has a diameter of 12 meters?
Saturday, April 11, 2015 at 7:53pm

math
howmanypintsareequivalentto3gallons
Saturday, April 11, 2015 at 7:46pm

math
whatis3feet+7inches=
Saturday, April 11, 2015 at 7:44pm

Math
Eli sculpted this square pyramid out of clay. Its base is 12 inches long on each side and its slant height is 9 inches. What is the approximate height, h, of Eli's pyramid? (the answer includes square root)
Saturday, April 11, 2015 at 7:42pm

Math
Which rational number is equivalent to 3.90 with the .90 repeating? A. 3/90 B. 39/10 C. 35/9 D. 43/11 EXPLAIN PLZ
Saturday, April 11, 2015 at 7:34pm

Math
The planet Neptune is approximately 4.5 * 10^9 kilometers from the sun. The planet Venus is approximately 1.1 * 10^8 kilometers from the sun. Which is the best estimate of how many times as far from the sun Neptune is as Venus? A. about 4 times as far B. about 40 times as far ...
Saturday, April 11, 2015 at 7:31pm

Math
An ice cream store sells 30 different flavours of ice cream and it offers a choice of 3 different kinds of cones. In how many ways can we order a dozen two-scoop ice cream cones if any two of them in one order must differ at least by a flavor or by the kinds of cones? Thanks ...
Saturday, April 11, 2015 at 5:25pm

Math
An airplane is at an altitude of 10 km. You spot the airplane at an angle of 55 degrees . How far away Is the airplane directly from you? Give your answer to the nearest kilometre.
Saturday, April 11, 2015 at 4:05pm

Math
If a grasshopper jumped a vertical distance of 1.5 cm and horizontal distance of 8.0 cm,at what angle did it rise from the ground?
Saturday, April 11, 2015 at 4:02pm

Math
A 6 m ladder is leaning against the wall of a house. The angle between the ladder and the ground is 68 degrees. How far away is the ladder from the wall.? How high up the house does the ladder reach ? Give your answers accurate to two decimal places.
Saturday, April 11, 2015 at 3:54pm

math
In constructing a graph that compares average water usage per household in different communities, you choose to use cubes of different sizes. If the cubes are drawn so that their volumes are proportional to the volumes of water usage in different comunities, is the resulting ...
Saturday, April 11, 2015 at 12:19pm

math
Determine whether the following data should be represented on a graph as one-dimensional, two-dimensional, or three-dimensional. the average rainfall during different months of the year
Saturday, April 11, 2015 at 12:18pm

math
A study is conducted to compare the average square footage of homes in different communities. If squares are drawn so that their areas are in proportion to the average square footage, is the resulting graph misleading? Why or why not?
Saturday, April 11, 2015 at 12:18pm

math
F ind the product of two odd integers.
Saturday, April 11, 2015 at 11:42am

Math
Write the quadratic equation in standard form that has the given solutions. x:{5, -3}
Saturday, April 11, 2015 at 11:40am

math
The measures of the angles of the quadrilateral are in the ratio 2:4:6:8. Find the measure of each angle.
Saturday, April 11, 2015 at 11:34am

math
There are 10 batmans. the runs scored by the batmans are 1,2,3,4,5,6,7,8,9 and 10. Find the average scored bt them.
Saturday, April 11, 2015 at 11:26am

math
The measures of the angles of the quadrilateral are in the ratio of 2:4:6:8, Find the measure of each angle.
Saturday, April 11, 2015 at 11:23am

math
One angle is 10 degrees more than 4 times the other. Find the measure of each angle if a) they are complimentary, and b) they are supplementary
Saturday, April 11, 2015 at 9:16am

math
a swimming pool has an area of 40 square metres and a perimeter of 26 metres what is the length and width of the swimming pool and is it possible for a pool to have the same area but a larger perimeter?
Saturday, April 11, 2015 at 9:06am

math
the width of a math textbook is 0.75 inches. how many math textbooks can be placed standing up on a shelf that is 18 inches wide
Saturday, April 11, 2015 at 6:22am

math
By mass a certain material is 75% sand and another is 30% sand. How many tonnes of each must be mixed in order to have 250 tonnes of material that is 50% sand?
Saturday, April 11, 2015 at 2:59am

math
which ordered pair is a solution to the equation y = 3x + 4. I just can't figure it out. I have been working on this problem for over an hour. Please help me with the steps
Saturday, April 11, 2015 at 12:20am

math
Water is falling on a surface, wetting a circular area that is expanding at a rate of 9 mm2 /s. How fast is the radius of the wetted area expanding when the radius is 120 mm? (Round your answer to two decimal places.)
Friday, April 10, 2015 at 11:41pm

math
A rectangular field is to be enclosed on four sides with a fence. Fencing costs $8 per foot for two opposite sides, and $2 per foot for the other sides. Find the dimensions of the field of area 900 ft2 that would be the cheapest to enclose.
Friday, April 10, 2015 at 11:40pm

math
How to use an elimination strategy to solve the linear system: 5/3x +1/4y = 10 1/3x + 1/2y = 5
Friday, April 10, 2015 at 11:13pm

math
an airplane is flying 120 km south and 130km west of an airport. It is flying at a height of 10 km . what is the straight line distance to the airport?
Friday, April 10, 2015 at 10:01pm

Math
Gloria is an artist. She sets a goal to paint 2 pieces every month. she has already painted 5 pieces. The number of pieces Gloria paints depends on the number of months she spends painting. Which statements describe the number of pieces p Gloria paints over t months if she ...
Friday, April 10, 2015 at 9:54pm

essential math
an airplane is flying 120 km south and 130 km west of an airport. It is flying at a height of 10km. what is the straight line distance to the airport?
Friday, April 10, 2015 at 9:54pm

Math
As of the 2012 Summer Olympics, the world record for women's long jump is 24 feet, 8 inches. How much longer is the world record than Sheila's first jump? Express your answer in yards. Sheila first jump measured 3 yards, 2 feet, 8 inches. Do I convert to inches or yards
Friday, April 10, 2015 at 9:45pm

math
A savings account starts with $560.00. If the simple interest rate is 3%, find the total amont after 18 months
Friday, April 10, 2015 at 9:37pm

Math
A manufacturer has determined that the weekly profit from the sale of x items is given by the function below. It is estimated that after t days in an week, x items will have been produced. Find the rate of change of profit with respect to time at the end of 7 days. P9x) = -x^2...
Friday, April 10, 2015 at 8:58pm

Math 222
I am starting to wonder why when I ask for help with my math problems, I get skipped over? This has happened to me a few times. I thought this site was to help those, but apparently not. I just need to know where to start, not the answers.
Friday, April 10, 2015 at 8:45pm

Math
Jack needs a piece of wood at least 13/16 inch long for some detail work on a project he is working on. Which of the following lengths of wood would meet his requirements? a 1/2 inch b 7/8 inch c 3/4 inch d 27/32 inch e 5/8 inch f 1/4 inch How do I solve this problem?
Friday, April 10, 2015 at 8:30pm

Math 222
Can someone please help me with these two problems? 1).12 < 12 + 4x < 0 2). 12 – x > 15 or 7x – 13 > 1
Friday, April 10, 2015 at 8:11pm

Math
What ordered pair is a solution to the equation y = 3x + 4? a. (0,0) b. (-5, -3) c. (2, 10) d. (15, 39) I pick C is this correct?
Friday, April 10, 2015 at 8:09pm

Math
What is the least common multiple of 8 and 12? PLEASE SHOW YOUR WORK IF POSSIBLE!
Friday, April 10, 2015 at 7:42pm

Math
A flowerbed is 3 3/4 meters long and 2 meters wide. Uncle James wants to build a border around the flowerbed. The width of the border is 1/2 meter. The cost of building the border is $20 per square meter. How much does Uncle James have to pay to have the border built.
Friday, April 10, 2015 at 7:34pm

Math Homework
Sheila's first jump was 3 yards 2 feet 8 inches her second was 2 yards 1 foot 10 inches how much longer was her first jump? express your answer in inches I'm having a hard time setting this up
Friday, April 10, 2015 at 7:03pm

Math
Puppy A is 3/4 as heavy as puppy B. Puppy C is twice as heavy as puppy A. If the weight of puppy B is 8 pounds, find the weight of puppy C.
Friday, April 10, 2015 at 7:02pm

Math
Lily uses 1 3/4 of ribbon to make a knot. She wants to make 9 similar knots for her cousins. How many meters of ribbon does Lily need? Round your answer to the nearest meter.
Friday, April 10, 2015 at 6:54pm

Math
The Smith family drinks 1 4/5 liters of apple juice each day. The apple juice is packed in 2-liter bottles. How many bottles does Mrs. Smith need to buy every week?
Friday, April 10, 2015 at 6:12pm

Math - Ms. Sue
1) Which is M = 9pn solved for p? a. p = M/n b. p = M - 9n c. p = 9n/M d. p = M/9n 2) Which is M = 300J/P solved for J? a. J = 300PM b. J = 300M/P c. J = 3OO/PM d. J = PM/300 I don't really understand this but my answer are 1. d 2. b
Friday, April 10, 2015 at 4:49pm

Math
You borrow $2,000 for a period of 4 years. You are charged simple interest at a rate of 3%. How much will you repay at the end of 4 years? Explain
Friday, April 10, 2015 at 4:23pm

math - plz help!!
How to write three linear system that are equivalent to the linear system shown? 5x-4y= -3 2x + 7y= 5
Friday, April 10, 2015 at 4:21pm

Math
Simplify the expression 6P3. A. 30 B. 120 C. 360 D. 720 Is the answer B? Thank you
Friday, April 10, 2015 at 3:17pm

Math
austin collected 30 9/10 kilograms of glass for recycling. exactly 2/3 of glass he collected was blue. what was the total amount in kilograms of blue glass austin collected?
Friday, April 10, 2015 at 2:14pm

Math(PLEASE HELP IMPORTANT CASE STUDY)
Express the weekly profit earned using the variable cost per unit and the fixed cost. TP=TR-TC TP= P(9+33p-p^2)-10(9+33p-p^2)+100 Please help me solve this! I am BEGGING. THANK YOU SO MUCH
Friday, April 10, 2015 at 1:36pm

Math
Find the value of each factorial expression. 4! A. 3 B. 6 C. 12 D. 24 Is the answer B? Thank you
Friday, April 10, 2015 at 1:32pm

math/physics
A 8 kg mass is attached to a spring hanging from the ceiling and allowed to come to rest. assume that the spring constant is 40 n/ m and a damping constant is 3 N/m. At t=0 and external force of 2 sin(2t+PI/4)N is applied to the system. determine amp, frequency and steady ...
Friday, April 10, 2015 at 12:53pm

Math
Find the surface area of the right prism with the given features. The bases are right trapezoids with bases of lengths 8 and 14 perpendicular to one side of length 18; height = 11.
Friday, April 10, 2015 at 12:43pm

Math
A 6 m ladder is leaning against the wall of a house The angle between the ladder and the ground Is 60 degrees . How far away is the ladder from the wall? How high up the house does the ladder reach? Give your answers accurate to two decimal places
Friday, April 10, 2015 at 11:04am

Math
three whole numbers have their LCM as 180 and their HCF equal to 3. two of the numbers are 45 and 60. Find the third number.
Friday, April 10, 2015 at 10:51am

math
c = g + 94 The variable g represents the number of guests, and the variable c represents the cost in dollars. If there are 3 guests, how much will Jenna's retirement party cost?
Friday, April 10, 2015 at 10:50am

Combinations-Math
A group of 9 workers decides to send a delegation of 3 to their supervisor to dicusss their grievences. c.) If there are 4 women and 5 men in the group, how many delegations would include at least 1 women? iS THIS CORRECT: C(4,1)xC(5,1)+C(4,3)XC(5,0)=24
Friday, April 10, 2015 at 5:12am

solve math problem
A group of 9 workers decides to send a delegation of 3 to their supervisor to dicusss their grievences. c.) If there are 4 women and 5 men in the group, how many delegations would include at least 1 women? I know I have to use combination C(9,1)x C(9,4) but I'm lost after ...
Friday, April 10, 2015 at 5:10am

business math
a fair dice is tossed twice 1 at most 6 at least 9
Friday, April 10, 2015 at 3:49am

math - hw help. plz
How to I solve this linear system using method of substitution? 1/4x + 1/2y = -5/12 2x - y = -4/3
Friday, April 10, 2015 at 1:21am

Math
35=18
Friday, April 10, 2015 at 12:37am

Math
Does the inequality x > 5 have an infinite number of solutions? How do you know?
Friday, April 10, 2015 at 12:31am

Math
Which inequalities share some solutions with x > 3? - a x > 3 b x < 0 c x < 3 _ d x > 5 _ e x < 3 How do I solve this problem?
Friday, April 10, 2015 at 12:13am

Math
You roll a pair of number cubes and then flip a coin. Is this an example of independent or dependent events? A. Independent B. Dependent Is the answer A? Thank you
Thursday, April 9, 2015 at 11:47pm

8th grade math
Company A charges $25.00 for up to 100 minutes, plus $0.50 for each extra minute. Company B charges $50.00 for an unlimited number for minutes. What are the equations for each company?
Thursday, April 9, 2015 at 11:42pm

Math
Suppose you write the letters M-I-S-S-I-S-S-I-P-P-I on cards and mix them in a hat. You choose one card from the hat without looking. What is the probability of picking an S? A.4\11 B.2\11 C.4\7 D.7\4 Is the answer A? Thank you
Thursday, April 9, 2015 at 11:32pm

Math
Suppose you write the letters M-I-S-S-I-S-S-I-P-P-I on cards and mix them in a hat. You choose one card from the hat without looking. What is the probability of picking a P? A.4\11 B.2\11 C.4\7 D.7\4 Is the answer B? Thank you
Thursday, April 9, 2015 at 11:21pm

Math
You have made 3 out of 10 of your last free throws. How many free throws can you expect to make if you shoot 100 free throws? A.30 B.50 C.60 D.75 Is the answer A? Thank you
Thursday, April 9, 2015 at 11:02pm

Math
You flip a coin 30 times and get heads 11 times, so the chance of getting heads is 11\30. Is this an example of theoretical or experimental probability? A. Theoretical B. Experimental Is the answer B? Thank you
Thursday, April 9, 2015 at 10:46pm

math
Consider the inequality x > , where x is a positive real number. Does the inequality have an infinite number of solutions? How do you know? Pease help me.
Thursday, April 9, 2015 at 9:31pm

math
The value of n is less than 20. Write the inequality that represents the value of n. I think I can graph it on the number line if I new what n was.
Thursday, April 9, 2015 at 9:27pm

math
There are 32 visitors to the guidance counselor's office each day. Write an inequality that represents the number of visitors to the guidance counselor's office. I am so confused
Thursday, April 9, 2015 at 9:15pm

math
The manager at Sunshine Days Camp is going to buy juice for the campers. Each bottle contains 64 ounces of juice. Each camper is expected to drink more than 11 ounces of juice. There are 72 campers. Explain how the manager would write an inequality to represent the number of ...
Thursday, April 9, 2015 at 8:50pm

Math
An ice cream store sells 30 different flavours of ice cream and it offers a choice of 3 different kinds of cones. In how many ways can we order a dozen two-scoop ice cream cones if any two of them in one order must differ at least by a flavor or by the kinds of cones? Thanks ...
Thursday, April 9, 2015 at 8:48pm

math
A man have 5 trucks. The capacity of trucks A and B are 2,5 ton, trucks C and D are 3 ton and the capacity of truck E is 1 ton more then the average capacities. Identify the capacity of truck E.
Thursday, April 9, 2015 at 8:41pm

math
A and B are numbers. The result of AB is an even number. The result of A+B is uneven number. A = ?, B = ? so confuse..
Thursday, April 9, 2015 at 8:36pm

math
A handful of paper clips is 5.2 grams. A handful of push pins is 500 centigram a. Which handful weighs more? So 1c equals .o1 grams so isn't it 5.2 g compared to .05 grams which then means the paper clips are heavier? Thx for any help you can provide.
Thursday, April 9, 2015 at 8:34pm

Math
A manufacturer has determined that the weekly profit from the sale of x items is given by the function below. It is estimated that after t days in an week, x items will have been produced. Find the rate of change of profit with respect to time at the end of 7 days. P9x) = -x^2...
Thursday, April 9, 2015 at 8:04pm

math
The manager at Sunshine Days Camp is going to buy juice for the campers. Each bottle contains 64 ounces of juice. Each camper is expected to drink more than 11 ounces of juice. There are 72 campers. (a)Explain how the manager would write an inequality to represent the number ...
Thursday, April 9, 2015 at 8:00pm

math
what are some inequalities that share some solutions with x is greater than or equal to 3? I am not sure what they are.
Thursday, April 9, 2015 at 7:49pm

math
my question is i dont know what x and y are and x has 10 and 30 and y has 19 and 25 i dont know the anwser.
Thursday, April 9, 2015 at 6:42pm

Math
Tanisha is painting a mural that is in the shape of a rectangle. The mural covers an area of 54 square feet. The base of the mural measures 9 feet. What do you need to find? What information do you know?
Thursday, April 9, 2015 at 6:07pm

Math
What if the mural were in the shape of a square with an area of 81 square feet. What would the height of the mural be? Explain
Thursday, April 9, 2015 at 6:04pm

math
what is the procedure for solving the equation 1/2x = 16. I am stuck. Please help me.
Thursday, April 9, 2015 at 6:00pm

Math
Solve for the zeros of the function using the quadratic formula. 3x^2=-4x+6 I know what the quadratic formula is but when I put it into the formula I keep getting an error on the graphing calculator.
Thursday, April 9, 2015 at 5:56pm

Math
the length of a rectangular garden is 5 less than twice the width find the length of the garden if the area is 88 square feet
Thursday, April 9, 2015 at 5:54pm

Math
A function is described by the equation f(x)=x^2-3. The replacement set for the independent variable is (2,4,7,9) What is the corresponding set for the dependent variable
Thursday, April 9, 2015 at 5:49pm

math, probability
There are six ways to write 5 as an ordered sum of three positive integers: 3+1+1, 1+3+1, 1+1+3, 2+2+1, 2+1+2, 1+2+2. A) What is the number of ways to write "n" as an ordered sum of "r" integers? B) What is the number of ways to write "n" as an ...
Thursday, April 9, 2015 at 5:48pm

Math
The capacity of a 1 cm cube is 1 mL. How many 1 cm ice cubes would you need to melt to fill a 1.5 L jar?
Thursday, April 9, 2015 at 5:19pm

Math Check
Hi! I need help with this one problem. My teacher told me that I could use any method to solve the following system and this is the answer I got; (1/2,2/5). Is this correct? 0.15r + 0.85s = 0.23 0.20r + 1.25s = 0.33 Write answer in (r, s).
Thursday, April 9, 2015 at 4:54pm

math
The 1st,5th,13th term of an arithmetic sequence are the first 3 terms of geometric sequence with a common ratio of 2. If the 21st term of the arithmetic sequence is 72, calculate the sum of the first 10 terms of the geometric sequence.
Thursday, April 9, 2015 at 4:20pm

Math
When you are multiplying a 7 x 3 matrix by a 3 x 2 matrix, what would the resulting matrix be of which order? Write your answer is a x b form.
Thursday, April 9, 2015 at 4:15pm

math
How to write three linear system that are equivalent to the linear system shown? 5x-4y= -3 2x + 7y= 5
Thursday, April 9, 2015 at 3:29pm

math
An architect is designing an office building with n floors that will have an FM radio antenna 15.85m tall on its roof. Each floor of the building will be 3.9m high. Which equation can be used to find the total height, h, of the building in meters, including the FM antenna? A. ...
Thursday, April 9, 2015 at 3:15pm

Math (Help please)
Hi! I'm a little confused on what I'm suppose to do for this problem. Can someone help? Thanks! Directions: Which element would be in Row 3, Column 1? [1 5 6 -2 7 11 4 0 -1 2 9 7]
Thursday, April 9, 2015 at 3:14pm

Math
Dominic used the equation below to find d, the amount in dollars he would spend on gasoline to drive a distance of m, miles. d= m/25(3.5) Based on this equation how much would Dominic need to spend on gasoline to drive a distance of 1800 miles? A. $25.50 B. $21.00 C. $24.50 D...
Thursday, April 9, 2015 at 3:07pm

Math
Which situation can be represented by the equation y= 12x - 4? A. The number of eggs , y, in x, dozen eggs for sale after 4 dozen eggs are sold. B. The cost of, y, of buying x movie tickets that sell for 8$ each. C. The cost, y, after a 4$ discount, of buying x t-shirts that ...
Thursday, April 9, 2015 at 3:04pm

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