Thursday
April 24, 2014

Homework Help: Math

Branches of Math

Recent Math Questions

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math
The ratio of Steve's age to Tims age is 6:7. If Steve is 84, how old is Tim?
Wednesday, April 9, 2014 at 4:42pm

math
how do you type up a spaceship in space
Wednesday, April 9, 2014 at 4:40pm

math
Shania is having trouble understanding her algebra assignment. To help her understand, she asks Mark why is x^2*y^3 not equal to (x,y)^5 Which of the following responses would be best for Mark to give? A. “You should multiply the exponents rather than add them. The ...
Wednesday, April 9, 2014 at 4:18pm

math
A researcher is performing a hypothesis test. The null hypothesis is that μ=10 and the alternative hypothesis is that μ<10. A sample of 18 individuals was collected and the t-based test statistic calculated from the data was -2.105. What is the approximate p-value...
Wednesday, April 9, 2014 at 4:15pm

Math
1. What is the solution of the matrix equation? |9 4| |-9 -6| | | X =| | |2 1| |-1 -8| A.) |5 -26| |9 -60| B.) |-5 26| |-1 -8| C.) |-5 26| |9 -60| D.) |9 26| |9 1| I think the Answer is B. But I am unsure. Thanks.
Wednesday, April 9, 2014 at 4:10pm

Math
A bank lent $1.2 million for the development of three new products, with one loan each at 6%, 7%, and 8%. The amount lent at 8% was equal to the sum of the amounts lent at the other two rates, and the bank's annual income from the loans was $88,000. How much was lent to ...
Wednesday, April 9, 2014 at 1:38pm

Math
-sqrt60 How to do this?
Wednesday, April 9, 2014 at 1:18pm

Math
If RS = 24, UT = x + 6, RU = y + 3, and ST = 18, find the values of x and y. A. x = 30, y = 21 B. x = 30, y = 15 C. x = 18, y = 15 D. x = 1, y = 7
Wednesday, April 9, 2014 at 1:00pm

math PLEASE HELP!!!!!
Rectangular Prism: Length: 41 ft Width: 32 ft Height: 49 ft 1. Find the surface area for the given prism. (1 point) 7,154 ft^2 2,624 ft^2 9,778 ft^2 8,432 ft^2. Find the volume of the same prism. (1 point) 64,288 ft^3 31,312 ft^3 32,009 ft^3 323,208 ft^3 i know the formulas ...
Wednesday, April 9, 2014 at 12:56pm

Math
Use synthetic division to determine which pair of integers provide both a lower and an upper bound for the zeros of f(x)= x^5-2x^4-25x^3+50x^2+144x-290 PLEASE SHOW WORK!!!
Wednesday, April 9, 2014 at 12:49pm

math
An efficiency expert has calculated that about 9.5% of the articles produced in a manufacturing plant are defective. This is equivalent to expressing the defective articles as a. 9 out of 15 b. 9 out of 50 c. 10 out of 95 d. 19 out of 100 e. 19 out of 200 please answer and ...
Wednesday, April 9, 2014 at 12:26pm

math
If a workman receives time and a half for overtime, 25 hours of overtime would be the equivalent of how many regular working hours? a. 6 b. 12 c. 18 d. 30 e. 37.5 please answer and explain
Wednesday, April 9, 2014 at 12:00pm

math
A father can do a job as fast as two sons working together. If one sone does the job alone in three hours and the other does it alone in six hours, how many hours does it take the father to do the job alone? a. 1 b. 2 c. 3 d. 4 e. 4 1/2 please answer and explain
Wednesday, April 9, 2014 at 11:56am

Math Accounting
Determine the proposal’s appropriateness and economic viability. For all scenarios, assume spending occurs on the first day of each year and benefits or savings occurs on the last day. Assume the discount rate or weighted average cost of capital is 10%. Ignore taxes and ...
Wednesday, April 9, 2014 at 11:53am

math
HHow many pupils are there in a class if two pupils remain after four rows of seats are filled, and nine pupils remain after three rows of seats are filled? a. 21 b. 22 c. 28 d. 30 e. 32 please answer and explain
Wednesday, April 9, 2014 at 11:42am

math
Sara drives 72 miles on 3.2 gallons of gas. She uses this information to calculate how many miles per gallon she can drive. Using this result, how many miles can Sara drive on 13.3 gallons of gas?
Wednesday, April 9, 2014 at 11:12am

math
10t-640/t^2 = 0 Thank you so much for huge help:)))
Wednesday, April 9, 2014 at 10:53am

math
Weights of the vegetables in a field are normally distributed. From a sample Carl Cornfield determines the mean weight of a box of vegetables to be 180 oz. with a standard deviation of 8 oz. He wonders what percent of the vegetable boxes he has grouped for sale will have a ...
Wednesday, April 9, 2014 at 2:24am

math
A man has 21 coins in his pocket, all of which are dimes and quarters. If the total value of his change is 405 cents, how many dimes and how many quarters does he hav
Wednesday, April 9, 2014 at 2:15am

math
suppose there are 2 pieces of the cake left over, but you don't know how many pieces were in the whole cake.Explain how you could find the number of pieces in the whole cake if Taylor told you 1/6 of the cake was left.You may show your work in a drawing.
Wednesday, April 9, 2014 at 12:28am

math
The balance sheet is used to project future cash receipts t or f
Tuesday, April 8, 2014 at 11:53pm

math
We use the normal distribution to make estimates about a population.t or f
Tuesday, April 8, 2014 at 11:42pm

Math
To win a certain board game, a tossed token must land on a shaded square on the board. The probability of winning is approximately 23%. If the board has a total area of 130 congruent squares, how many of these squares are shaded?
Tuesday, April 8, 2014 at 11:20pm

Math
A number cube with numbers 1 through 6 is rolled. Find the given probability. P(complement of 4) A. 1/6* B. 5/6 C. 2/6 D. 4/6
Tuesday, April 8, 2014 at 11:14pm

Math
A number cube with numbers 1 through 6 is rolled. Find the given probability. P(number¡Ý3) A. 4/6 B. 1/6 C. 2/6 D. 5/6*
Tuesday, April 8, 2014 at 11:12pm

math
For its fleet of trucks, Overland Transport, Inc., purchased 580 tires rated at 50 pounds each. The tires had a retail price of $85 each. The sales tax in 4.5%, and the federal excise tax is $0.15 per pound. A. What are the amount of sales tax per tire and the total sales tax...
Tuesday, April 8, 2014 at 11:07pm

9th grade math
4x^2=80x-400
Tuesday, April 8, 2014 at 10:57pm

9th grade math
x^2+8x+16=25
Tuesday, April 8, 2014 at 10:56pm

9th grade math
4m^2-24m+36=0
Tuesday, April 8, 2014 at 10:51pm

math
Brendan got 32 questions correct on his social studies test and missed 8 questions. What % did he have correct?
Tuesday, April 8, 2014 at 10:39pm

math
Frank owns 250 acres of land. If he divides the land into 1/3 acre plots, how many plots will he have?
Tuesday, April 8, 2014 at 10:38pm

math
50 in.2 to cm2
Tuesday, April 8, 2014 at 10:37pm

math
How many centimeters is a piece of paper that measures 12 inches?
Tuesday, April 8, 2014 at 10:30pm

math
Name the position of the first digit of the quotient. 1. 832/4 2. 217/7 I don't understand. Someone please explain to me.
Tuesday, April 8, 2014 at 10:24pm

math
Sandra needs 2 3/4 cups of flour for one kind of cookie and 3 3/8 cups for another kind. How much would she need for both kinds?
Tuesday, April 8, 2014 at 10:20pm

Math
Anita says the plus sign + forms 2 pairs of vertical angles. Charles says it forms 2 pairs of congruent angles. Who is correct? Explain.
Tuesday, April 8, 2014 at 10:10pm

5th grade math
On Friday and Saturday, 618 people attended a car show. If the same number of people went each day,how many people attended the car show on Saturday? My answer is 1,236. Is my answer correct? If not please show me how to work this problem.
Tuesday, April 8, 2014 at 10:07pm

Math
Pay can buy a package of 20 balloons for $6 or a package of 50 for $9. How much cheaper is each balloon in the package of 50 balloons?
Tuesday, April 8, 2014 at 10:01pm

math
What % of $3.75 is $1.50?
Tuesday, April 8, 2014 at 9:46pm

Math
A number cube with numbers 1 through 6 is rolled. Find the given probability. P(number<2) A. 1/6* B. 2/6 C. 4/6 D. 3/6
Tuesday, April 8, 2014 at 9:46pm

math
Brendan got 31 questions correct on his social studies test and missed 9 questions. What percent did he have correct?
Tuesday, April 8, 2014 at 9:45pm

math
Mrs. Grace has 10 sandwiches that are 4 inches in diameter. They can fit exactly into a different box... Need to show work in box, help, can't seem to figure this out
Tuesday, April 8, 2014 at 9:42pm

Math (Please Help Ms. Sue)
what happens to the surface area of a rectangular prism when each of the dimensions is doubled? 1. it doubles 2. it quadruples 3. it is six times greater 4. it is halved
Tuesday, April 8, 2014 at 9:03pm

Math
what happens to the surface area of a rectangular prism when each of the dimensions is doubled? 1. it doubles 2. it quadruples 3. it is six times greater 4. it is halved (I picked 2. Quadruples)
Tuesday, April 8, 2014 at 8:55pm

math
Which of the following decimals is equivalent to three and ten hundredths? a)0.30 b)0.31 c)3.01 d)3.1 My answer is (d.)
Tuesday, April 8, 2014 at 8:55pm

Math
Drinking 8 fluid ounces of milk provides 270.0 milligrams of calcium. How many fluid ounces of milk provide 72.5 milligrams of calcium? Round to the nearest tenth.
Tuesday, April 8, 2014 at 8:33pm

math
For its fleet of trucks, Overland Transport, Inc., purchased 580 tires rated at 50 pounds each. The tires had a retail price of $85 each. The sales tax in 4.5%, and the federal excise tax is $0.15 per pound. A. What are the amount of sales tax per tire and the total sales tax...
Tuesday, April 8, 2014 at 8:25pm

Math
Can someone show me a model of what 8 divided by 0.3 would look like? Thanks
Tuesday, April 8, 2014 at 8:17pm

Math
7/12, 3/4, and 2/3 in order which one is the smallest to the greatest?
Tuesday, April 8, 2014 at 8:03pm

MATH VERY URRRGENT!!!!!!!!!!!!!
Create two different situations: one in which you use combinations and one in which you use permutations. Include specific details and an explanation about what makes each situation either a combination or permutation.
Tuesday, April 8, 2014 at 7:48pm

Math - Please Check My Answers
Please help me by checking the following answers for me(There are 3 problems that I need someone to check). 3. A student is attempting to solve the equation below for the variable x. Which of the statements below best applies to the mathematical work shown? Given √(4x-6...
Tuesday, April 8, 2014 at 7:42pm

Math
How does 26.666 equal 26.2? Could you show me a model of how to do this? Thank You
Tuesday, April 8, 2014 at 7:41pm

Math
A bank lent $1.2 million for the development of three new products, with one loan each at 6%, 7%, and 8%. The amount lent at 8% was equal to the sum of the amounts lent at the other two rates, and the bank's annual income from the loans was $88,000. How much was lent to ...
Tuesday, April 8, 2014 at 7:15pm

math
If Sue worked 6 3/4 hours on Monday, 4 hours on Tuesday, 7 3/4 hours on Wednesday, 8 hours on Thursday, and 5 1/2 hours on Friday, calculate her weekly wage at $7.20 per hour.
Tuesday, April 8, 2014 at 7:13pm

Gr 10 math - finding vertices
I know how to do the equation for one line in a shape, but how do I find them for two?
Tuesday, April 8, 2014 at 7:13pm

Math
A 3500-seat theater sells tickets for $75 and $110. Each night the theater's expenses total $245,000. When all 3500 seats sell, the owners want ticket revenues to cover expenses plus earn a profit of 25% of expenses. How many tickets of each price should be sold to achieve...
Tuesday, April 8, 2014 at 7:13pm

math
Frank owns 300 acres of land. If he divides the land into 1/2 acre plots, how many plots will he have?
Tuesday, April 8, 2014 at 7:05pm

Math
Is 2/3 greater than 3/4
Tuesday, April 8, 2014 at 6:33pm

math
36 is what percent of 143?
Tuesday, April 8, 2014 at 6:26pm

math
Jamal writes the letters K-A-N-S-A-S on cards and then places the cards in a hat. What are the odds against picking an S?
Tuesday, April 8, 2014 at 5:27pm

Math
If the circumference of a circle is 18 ( pie symbol), what is the area of the circle? Thanks
Tuesday, April 8, 2014 at 5:04pm

math
The product of square of a number and the cube of the same number is equal to 32 what is that number
Tuesday, April 8, 2014 at 4:23pm

3rd grade math
Explain how you know 6/6 and 1 are equivalent?
Tuesday, April 8, 2014 at 4:14pm

Math - Check My Answers, Please
Please help me by checking the following answers for me. 3. A student is attempting to solve the equation below for the variable x. Which of the statements below best applies to the mathematical work shown? Given √(4x-6)=12, I square both sides, so (√4x)^2-6=&#...
Tuesday, April 8, 2014 at 3:29pm

math
Write an equation for the realartionship. Tell what the variables represent. It takes Li 1 hour to drive 65 miles, 2 hours to dirve 130 miles, and 3 hours to drive 195 miles.
Tuesday, April 8, 2014 at 3:10pm

Math (help)
what is the length of the radius of the LARGER cone(the LARGER cone has a slant height of 15) when the SMALLER cone has a radius of 8 and a slant height of 12ft ,please help.
Tuesday, April 8, 2014 at 2:07pm

Math
8 people are going to sit on 6 chairs. Two of them John and Kelly can't sit next to each other. How many ways can you put the people to seats? The answer is 10080, but I can't figure out how to calculate it.
Tuesday, April 8, 2014 at 2:06pm

Math
Write the expression using a single exponent. 2^2 * 2^8 A. 4^10 B. 2^10 C. 4^16 D. 2^16 Write the expression using scientific notation. (2.5 * 10^4)(4 * 10^3 A. 10 * 10^7 B. 10 * 10^8 C. 1 * 10^8 D. 10 * 10^12
Tuesday, April 8, 2014 at 2:04pm

math multiple choice
. A man pays 60 cents for every 200m3 of gas used, plus a fixed charge of $13.75.How much does he pay when he uses 55 000m3 gas?
Tuesday, April 8, 2014 at 1:19pm

Math
In the expression -7x - 5x^2 + 5, what is the coefficient of x? A. 7 B. 5 C. -5 D. -7
Tuesday, April 8, 2014 at 12:44pm

Math
1. Add or subtract. (4x^2 + 15x -3) - (-3x^2 + 5) A. 7x^2 + 15x - 8 B. x^2 + 12x + 2 C. x^2 + 15x - 8 D. 7x^2 + 8 2. Simplify the polynomial. -3f^2 + 4f - 3 + 8f^2 + 7f + 1 A. 5x^2 - 4x - 2 B. -5x^2 + 8x - 2 C. 5x^2 - 8x + 2 D. -9x^2 - 8x + 2 3. Add or subtract. (2x^2 + 6x + 1...
Tuesday, April 8, 2014 at 12:20pm

math
Activity Boys Girls Total Walk 3 6 Bike 5 3 skateboard 2 1 3. What percentage of the total students chose skateboarding? (1 point) 10% 20% 30% none of these *** 4. What percentage of the boys chose walking? (1 point) 30% **** 45% 25% none of these 5. What percentage of the ...
Tuesday, April 8, 2014 at 11:49am

math
if a 30 ft ladder makes a 65 degree angle with the ground, how many fee up the wall will it reach
Tuesday, April 8, 2014 at 9:35am

Math
In how many words can you form the word ALGEBRA?
Tuesday, April 8, 2014 at 7:18am

Math
The teachers in a childcare center are taking their children for a field trip.if each bus takes 40 children, there will be 16 vacant seats. If each bus takes 36 children, 20 children will not get any seats. How many buses are there?
Tuesday, April 8, 2014 at 4:45am

math
Two angles are complementary. One contains 30° more than the other. Find both angles
Tuesday, April 8, 2014 at 1:44am

Math (help)
how to find the surface area of a cone with a diameter of 8 and a slant height of 7? with steps? please
Tuesday, April 8, 2014 at 1:05am

Math
Please help me with the following by checking my answer. The length of the hypotenuse of an isosceles right triangle is √6 inches. How long, in inches, are the legs of the triangle? A. 3 B. 6 C. √3 - (This is my answer.) D. √6 I am not sure on my answer, ...
Tuesday, April 8, 2014 at 12:47am

Business math
The Treasury Department auctioned $21 billion in 3-month bills in denominations of $10,000 at a discount rate of 4.965%. What would be the effective rate of interest? (Use calendar year. Do not round intermediate calculations. Round your answer to the nearest hundredth ...
Monday, April 7, 2014 at 11:51pm

business Math
Please help? The Treasury Department auctioned $21 billion in 3-month bills in denominations of $10,000 at a discount rate of 4.965%. What would be the effective rate of interest? (Use calendar year. Do not round intermediate calculations. Round your answer to the nearest ...
Monday, April 7, 2014 at 11:35pm

business Math
Carl Sonntag wanted to compare what proceeds he would receive with a simple interest note versus a simple discount note. Both had the same terms: $19,500 at 8% for 2 years. Use ordinary interest as needed. a. Calculate the simple interest note proceeds. Can someone help me? ...
Monday, April 7, 2014 at 11:34pm

business Math
You were offered the opportunity to purchase either a simple interest note or a simple discount note with the following terms: $33,353 at 7% for 18 months. a. Calculate the effective interest rate. (Do not round intermediate calculations. Round your final answer to the ...
Monday, April 7, 2014 at 11:33pm

Business Math
Can someone help me with this problem: On September 5, Sheffield Company discounted at Sunshine Bank a $9,000 (maturity value), 120-day note dated June 5. Sunshine’s discount rate was 9%. (Use Days in a year table.) What proceeds did Sheffield Company receive...
Monday, April 7, 2014 at 11:31pm

Math
Their are 18 green blocks in a bag.their are 3 white blocks for every 2green blocks.witch proportion can be used to find w,the total number of white blocks in the bag?
Monday, April 7, 2014 at 11:00pm

Math
Please help me with the following by checking it. Solve for x: √(2x^2+5)=2 A. ±1 B. √2 - (This is my answer.) C. ±2 D. None of the above. I am not sure about my answer, can someone check it please. Any help will be greatly appreciated.:)
Monday, April 7, 2014 at 10:55pm

Math help
how to find the surface area of a cone with a diameter of 8 and a slant height of 7?
Monday, April 7, 2014 at 10:49pm

Math help
How do you find the volume of a cylinder with a diameter of 34m and a height of 27m?
Monday, April 7, 2014 at 10:01pm

Math help Please
My willy bird is 6 inches and has a mass, M, of 2.1kg. During penetration, it reaches a force or 15.0 N with a coefficient of friction 0.75. Calculate its rotational velocity given no respect to time. How much work is done in a thirty second period?
Monday, April 7, 2014 at 9:51pm

math
a storage room measures 11.35 feet in length by 9.5 feet in width by 8.3 feet in height. it contains a box which is 4.25 feet in length 6.5 feet in width and 4.0 feet in height.how many cubic feet of storage space are left in the room rounded to the nearest cubic foot
Monday, April 7, 2014 at 9:49pm

Math
Monique is making cookies for the pajama party at her house. She has 3-1/2 cups of sugar. The recipe calls for 3/4 cup of sugar for one batch of cookies. Write an equation that can be used to find c, the total number of batches of cookies she can make.
Monday, April 7, 2014 at 9:28pm

Math
Jim paid $ 5.55 for 1 notepad and 7 pencils. Anne paid $ 12.28 for 3 notepads and 2 pencils. How much does each notepad cost? Show all work
Monday, April 7, 2014 at 9:13pm

Math
What is the distance between (-2,-5) and its reflection over the x-axis?
Monday, April 7, 2014 at 9:07pm

Math
At a baseball stadium, every eighth person received a coupon for free popcorn. Every thirtieth person received a free hot dog. WHich person was the first to receive both free gifts?
Monday, April 7, 2014 at 8:50pm

math word problem PLEASE HELP
Susan uses 15 rolls of ribbon to decorate 10 wedding baskets. Each roll of ribbon is 5 3/8 yards long. After she decorates the baskets, she decides to cut off another 3/4 yard from the ribbon of each basket. Write and simplify an expression to fin out how much ribbon was used ...
Monday, April 7, 2014 at 8:42pm

Math
Ms.Smith wrote the division problem shown below, using a box to represent the missing digit. What value can replace the box in the quotient to complete the division problem? 132 divided by 12 and i got 11 but does 11 answer the question or do i put 1 for the value left?
Monday, April 7, 2014 at 8:30pm

math
5.052 x 10^14
Monday, April 7, 2014 at 8:16pm

Math
Find the exact solutions of the equation In The interval.. Sin 2x -sin x=0
Monday, April 7, 2014 at 8:10pm

science/math
1. A light ray strikes a mirror at an angle of 42° from the surface of the mirror. What angle does the reflected ray make with the normal Ans. 42° 2. A ray of light hits a mirror at 27° from the normal. What is the angle between the reflected ray and the normal. ...
Monday, April 7, 2014 at 8:08pm

Math
The percentage of a certain brand of computer chips that will fail after t years of use is estimated to be P(t) = 100(1 − e−0.12t ). What percentage of this brand of computer chips are expected to be usable after 3 years? (Round your answer to one decimal place.)
Monday, April 7, 2014 at 7:50pm

Math
Phosphorus-32 (P-32) has a half-life of 14.2 days. If 200 g of this substance are present initially, find the amount Q(t) present after t days. (Round your growth constant to four decimal places.) How fast is the P-32 decaying when t = 21.5? (Round your answer to three decimal...
Monday, April 7, 2014 at 7:49pm

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