Wednesday
May 27, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

math
20 percent of what number is 18
Tuesday, April 14, 2015 at 8:44pm

math
If we say that rare events are those events that happen with a probability of less than .05, then how many observations of men taller than 71 inches tall would you have to observe when randomly sampling before concluding that you had a rare sample? mean = 69, SD = 4
Tuesday, April 14, 2015 at 8:22pm

Math
The population of a small Midwestern town is 4500 The population is decreasing at a rate of 1.5% per year. Write an exponential decay function to model this situation. Then find the number of people in the town after 25 years.
Tuesday, April 14, 2015 at 8:00pm

math
Given these probabilities: pr(rain) = .2 pr(snow)=.1 pr(cloudy)=.5 and pr(sun)=.2 pr(crash|rain or snow) = .2 pr(crash|cloudy or sun) = .05 what is the probability of a car crash?
Tuesday, April 14, 2015 at 7:59pm

math
Numbers that are palindromes read the same forward and backward. For example, 30203 is a five digit palindrome. If a single number is chosen randomly from the set of all three-digit numbers, find the probability that it will be palindromic. Answer 1/10??
Tuesday, April 14, 2015 at 7:56pm

math
Determine the number of odd, nonrepeating three digits numbers that can be written using digits from the set {1, 2, 3, 4}.
Tuesday, April 14, 2015 at 7:52pm

MATH
whats the answer to this? write an equation fr an arithmetic sequence with a 1st term of 8 and 4th term of -7. im stuck.
Tuesday, April 14, 2015 at 7:43pm

Math
Is 12% greater than or less than 100%?Explain.
Tuesday, April 14, 2015 at 7:39pm

Math
Farmer John (not the bacon guy) raises ducks and cows. He has 54 animals which all together have 122 feet. How many of each type of animals does Farmer John have?
Tuesday, April 14, 2015 at 7:26pm

math
Marteen wants to paint 2/3 of her room today.She wants to paint 1/4 of that before lunch.How much of her room will she paint before lunch today? A.1/12 B.1/6 C.5/12 D.11/12
Tuesday, April 14, 2015 at 6:31pm

Math
Write a compount interest function to model each situation. Then find the balance after the given number of years $27,000 invested at a rate of 3.75% compounded quarterly; 3 years
Tuesday, April 14, 2015 at 5:47pm

Math
What percent is 3/8? a. 21 b. 38 c. 55 d. 68
Tuesday, April 14, 2015 at 5:33pm

MATH WORD PROBLEM HELP PLEASE
A water tank is in the shape of a right circular cylinder with a height of 20 feet and a volume of 320pi cubic feet. What is the diameter, in feet, of the water tank?
Tuesday, April 14, 2015 at 5:32pm

math
find the first 3 term s of an arithmetic sequence in which the 21 term is -54 and the fifteenth term is -170
Tuesday, April 14, 2015 at 5:25pm

Math
Neil needs to cut 3 long boards into 9 smaller boards. The first is 10 ft, the second is 16 ft, and third is 18 ft. The table lists the smaller boards Neil needs. Use a drawing to show how he can divide the 3 boards so there is no waste.
Tuesday, April 14, 2015 at 5:06pm

Math
Some number multiplied by -6 is 36. Multiply this number by 8. Divide the answer by 2. What is the final number?
Tuesday, April 14, 2015 at 5:04pm

Math
Some number added to -12 is 45. Add this number to 30. Multiply the answer by 3. What is the final number?
Tuesday, April 14, 2015 at 4:49pm

math
Neil needs to cut 3 long boards into 9 smaller boards. The first is 10 ft, the second is 16 ft, and the third is 18 ft. The table lists the smaller boards Neil needs. Use a drawing to show how he can divide the 3 boards so there is no waste. Length of board Number needed 4 ft ...
Tuesday, April 14, 2015 at 4:45pm

Math
Suppose the speedometer of your car reads 90 km/ hr. If you are driving in the united states where the maximum speed is posted as 50 mi/ hr By how much are you exceeding the speed limit.
Tuesday, April 14, 2015 at 3:49pm

Math
Can someone do out the calculations for me on 7 yds , 1 ft,- 3 yds, 2 ft,= what in ft . Thanks
Tuesday, April 14, 2015 at 3:44pm

math analysis
Two airplanes leave an airport at the same time. one travels in the direction of 38 degrees at 140mph and the other travels in the direction of 350 degrees at 180mph. After two hours, how far apart are they? Thanks
Tuesday, April 14, 2015 at 3:07pm

Math
The figure below represents a garden in which a flower bed ( inner rectangle) is to be installed. The garden ( excluding the flower bed) is to be sodded. The outer is 9' ft width and 15' ft long and the inner is 3'ft wide and 7'ft long. A) Find the area of the ...
Tuesday, April 14, 2015 at 3:06pm

math
You order sixteen burritos to go from a Mexican restaurant: seven with hot peppers and nine without. However, the restaurant forgot to label them. If you pick four burritos at random, find the probability that at least two of the burritos you pick have hot peppers.
Tuesday, April 14, 2015 at 2:27pm

Math
1. Simplify 6p2 a. 30*** b. 15 c. 12 d. 720 a. is my answer. is this correct?
Tuesday, April 14, 2015 at 2:12pm

math
Which number is not equal to one of the following expressions? 0.6038 x 1000 603.8 -: 10 60.38 -: 100 0.6038 603.8 60.38 6.038
Tuesday, April 14, 2015 at 2:03pm

Math
You order sixteen burritos to go from a Mexican restaurant: seven with hot peppers and nine without. However, the restaurant forgot to label them. If you pick four burritos at random, find the probability that at least two of the burritos you pick have hot peppers. i can ...
Tuesday, April 14, 2015 at 1:17pm

Math
6.A rectangle has a coordinate at (3,5),(3,8) and (9,5).Plot the points to determine the coordinate of the fourth point. a)(-3,5) b)(9,8) c)(8,9) d)(-9,8)*** 9.What is the length of the line segment between M(2,-9) and N(2,-14)? a)5 units*** b)6 units c)15 units d)23 units
Tuesday, April 14, 2015 at 1:11pm

Math
Triangle S(-6,10)T(-9,3)U(-3,3) is translated right 2 units and 3 units down. What are the coordinates of the vertices of the image? s'(-9,12), t'(-12,5), u'(-6,5) s'(-4,7), t'(-7,0), u'(-1,0) s'(-8,13), t'(-11,6), u'(-5,6) s'(-4,10), t...
Tuesday, April 14, 2015 at 12:00pm

math
You own 6 pairs of jeans and want to take 2 pairs on vacation with you. How many different ways can you take two pairs of jeans? 10 12*** 15 20
Tuesday, April 14, 2015 at 10:39am

6th Grade Math Help & FAST!!!
I only have 2 questions. 1 is multiple choice and one I have to type so please help. 1. Which set of output values correctly completes the function table? This is the function table: y= 2x - 4. Input (x) 6, 2, -4. Output (y) those three slots all have question marks. A. 8, 2...
Tuesday, April 14, 2015 at 10:12am

math
Methylpresnisolone (Solumedrol) is a glucocorticoid ordered for end-stage respiratory disease. You need to administer 125 mg IVP. It is available as 75 mg/mL. How many mL will you administer? Round to the nearest 10th mL. Write the NUMBER ONLY in the blank, not mL. I got 1.7 ml
Tuesday, April 14, 2015 at 10:07am

math
2x^2=64/x^2-4-x-4/x=8
Tuesday, April 14, 2015 at 9:58am

Math
Perform the calculations 6 ft, 5 in,-2 ft, 7 in = what in ft, and inches Thanks
Tuesday, April 14, 2015 at 9:46am

Math
Perform the following calculations 7 yds , 1ft -3 yds, 2 ft= what in ft Thanks
Tuesday, April 14, 2015 at 9:44am

math
Connections Academy what is 3! simplified as a 2 b 5 c 3 d 6*** simplify 10p4 a 210 b 360 c 5,040*** d 151,200 simplify 15c3 a 182 b 455*** c 2,730 d 910 my answers 1-d 2-c 3-b
Tuesday, April 14, 2015 at 8:51am

Math
Find the cost of shingles for the gable roof roof below if one bundle covers approximately 33ft2 and costs $29.95.The top is both ways is 12.7 meters and down is 7.5 meters . Thanks
Tuesday, April 14, 2015 at 8:44am

math
A5-digit number has 7 in its place The digit in once place is 5 less than its digits at tens place The hundreds place digit is 4 times the digit at once place The digit at thousands place is the same as at hundreds place sum of all the digits is 33 write the number in standard...
Tuesday, April 14, 2015 at 8:32am

math
why shud math be included in alll the streams
Tuesday, April 14, 2015 at 4:25am

math
who found a subject called math
Tuesday, April 14, 2015 at 4:24am

Math
1.Which pair of points forms a vertical line segment? a)(-3,5) and (5,-3) b)(4,-2) and (4,3)*** c)(-8,1) and (5,1) d)(2,3) and (-2,5) 2.What is the length of the line segment between A(-10,8) and B(-10,-3)? a)18 units*** b)5 units c)11 units d)12 units
Tuesday, April 14, 2015 at 12:32am

Math
1.If the coordinates of a point have opposite signs, which quadrants could the point be in? a)Quadrants I and II b)Quadrants I and III*** c)Quadrants II and IV d)Quadrants II and III 2.Which ordered pair would be plotted by starting from the origin and moving 1.25 units right ...
Tuesday, April 14, 2015 at 12:04am

Math
Find the cost of shingles for the gable roof below if one bundle covers approximately 33 ft to the power of two and costs $29.95. Length on top is 12.7 meters and down is 7.5 meters. Thanks
Monday, April 13, 2015 at 11:45pm

Math
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. Can you give me some sites to look at? Thank you
Monday, April 13, 2015 at 11:22pm

Math
The voltage in an electrical circuit is multiplied by itself each time it is reduced. The voltage is 27/125 of a volt and it has been reduced three times. Write the voltage in exponential form.___________________________________​ What was the original voltage in the ...
Monday, April 13, 2015 at 10:49pm

math 8th grade
Face cards are removed from a standard deck of cards and the rest are set aside. two cards are drawn at random from the face cards. once a card is selected, it is not replaced. Find each possibility. P(jack and then king)? P(two black cards) answer 1/2 ?
Monday, April 13, 2015 at 10:08pm

Math
A 1965 U.S. half dollar contains 2/5 ounce of silver. How many ounces of silver do 100 of those coins contain?
Monday, April 13, 2015 at 10:01pm

Math
Suppose the speedometer of your car reads 90km/hr. If you are driving in the United States where the maximum speed is posted as 50 mi/hr by how much are you exceeding the speed limit.
Monday, April 13, 2015 at 9:57pm

Math
A flagpole is 5.4 meters high . Express this height in feet and inches.
Monday, April 13, 2015 at 9:54pm

Math
A store sells boxes of chocolates wrapped with a bow . If the bow is made from a 15 inch length of ribbon: A) how much ribbon remains from a roll which is 10 yards long after 20 boxes have been wrapped? B) How many more boxes can be wrapped in this way? Thanks
Monday, April 13, 2015 at 9:51pm

math
How do i find the 12th term of the sequence 36,18,9.... using a formula
Monday, April 13, 2015 at 9:44pm

Math
The coordinates of a point p(a,2a) of line of point m(2a,3) and n(4,3). Find the value of a
Monday, April 13, 2015 at 9:30pm

Math
If 3 bricks weigh 9 pounds, 5 bricks weigh 15 pounds, and 8 bricks weigh 24 pounds, write an equation for the function and explain your variable choices. How do I do this?
Monday, April 13, 2015 at 9:26pm

5th grade math
Applying concept :calculate As of July 2004, the population of the United States was 293,027,571.if more than half of these people live within 80 kilometers of an ocean, about how many people live within that distance? Show your work.
Monday, April 13, 2015 at 9:25pm

Math
Lions spend about 5/6 of their days sleeping. How many hours a day does a lion sleep?
Monday, April 13, 2015 at 9:00pm

math
my math homework tells me to find the area of a circle using it's circumference. the circumference given was. can someone explain to me how to find the area?
Monday, April 13, 2015 at 8:49pm

MATH
I need help on number 3.the question is. According to information from NASA the space Shuttles external fuel tank has a capacity of about 500,000 gallons of fuel.Write three numbers that could represent the space Shuttles actual fuel capcity.
Monday, April 13, 2015 at 8:27pm

Math
Cho is driving a car. He gets to his destination, which is 72 miles away, in 1 hour and 30 minutes. a. The equation d=rt can be used to model Cho's drive, where d us the distance traveled, r is the speed of the car and, and t is the amount of time spent traveling. ...
Monday, April 13, 2015 at 8:24pm

math
a designer creates a drawing of a triangular sign on centimeter grid paper for a new business. the drawing has sides measuring 6 cm, 8 cm, and 10 cm, and angles measuring 37°, 53°, and 90°. to create the actual sign shown, the drawing must be dilated using a scale ...
Monday, April 13, 2015 at 8:23pm

Math
Rayshawn must run at least 15 miles per week. Write an inequality that represents the number of miles that Rayshawn must run. Would it be M < 15. _
Monday, April 13, 2015 at 8:09pm

Math
A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn. A) What is the probability of selecting a purple marble and then a white marble? B) What is the probability of selecting ...
Monday, April 13, 2015 at 7:56pm

Math
Patrice cuts a piece of board 4 feet long from a board that is x feet long. Find an expression that describes the length in feet of the original after the cut. a. 4 + x b. 4x c. 4 - x d. x - 4 I pick d, is that the correct answer?
Monday, April 13, 2015 at 7:50pm

MATH
WHAT IS GREEN AND MAKES HOLES?
Monday, April 13, 2015 at 7:49pm

Math 1
Ellen is making rectangular bookmarks. Each bookmark has an area of 16 square inches, and the length is 6 inches more than the width. Find the length and width of her bookmarks.
Monday, April 13, 2015 at 7:45pm

Simple math
Two standard number cubes are thrown. Given that one of the cubes shows a five, what is the probability that the sum of the numbers that come up on the two cubes is five?
Monday, April 13, 2015 at 7:21pm

math
Q. The rectangular-shaped doctor's office has an area of 120 square feet and a perimeter of 44 feet. What are the dimensions of this office space? - A. Do I add just add 120 by 44??
Monday, April 13, 2015 at 7:09pm

Math
Which fraction would fit between the 1/7 and 1/4? A. 1 over 5 B. 2 over 7 C. 1 over 3 D. 1 over 8
Monday, April 13, 2015 at 6:46pm

math
the diagram shows the length of the borders of the fence the length of the fence is 62 meters what is the unknown Length
Monday, April 13, 2015 at 6:09pm

Math
Jack brought 2 quart of motor oil. His car took 1quart and another half quart. How many cups of oil does he have left?
Monday, April 13, 2015 at 5:46pm

math
How do i find the 12th term of the sequence 36,18,9.... using a formula
Monday, April 13, 2015 at 5:39pm

math
How do i find the 12th term of the sequence 36,18,9.... using a formula
Monday, April 13, 2015 at 5:34pm

math
find the number of terms for the following sequence. 125,109,93,.......-115 i got the answer of 15 terms. How do i get it though using a formula?
Monday, April 13, 2015 at 5:07pm

math
A professor gave his 40 students a test with three questions. Every student answered at least one question. Ten student did not answer the first question, 14 did not answer the second question, and 12 did not answer the third question. If 18 students answered all three ...
Monday, April 13, 2015 at 5:02pm

math
Would you be most likely to measure the amount of water in your kitchen sink in liters or milliliters? Someone pls help 😔
Monday, April 13, 2015 at 4:31pm

Math
Jack brought 2 quart of motor oil. His car took 1quart and another half quart. How many cups of oil does he have left?
Monday, April 13, 2015 at 4:23pm

math
find the missing terms for the following sequence geometric sequence 96,__,__,__,6
Monday, April 13, 2015 at 4:21pm

math
find the 12th term of the sequence 36,18,9....
Monday, April 13, 2015 at 3:51pm

math
-2h-21+4h<_9
Monday, April 13, 2015 at 3:08pm

Math - Steve
Calculate the volume of the figure. The figure is a box with measurements of base 3 cm...length 3 cm height 3 cm and then there is a pyramid on top of the box - perfect fit... but the height of the pyramid is 2 cm. is the volume 33 cm^3? Thank you
Monday, April 13, 2015 at 2:59pm

Math???Help
Quinn lives in a house with a value of $235,000. She has a mortgage of $170,000. She owes $5,900 on her car, which is valued at $17,900. She has a credit card balance of $823. Quinn also has $1,200 in a bank account. What is Quinn’s net worth? A $76,177 B $77,377 C $82,...
Monday, April 13, 2015 at 2:47pm

Math
(3/4*)-(*/7) x 3 1/2
Monday, April 13, 2015 at 2:39pm

math
how many grains are there in 1 and 1/2 tablets of 1/8 grains each? how do you figure this out!
Monday, April 13, 2015 at 2:05pm

Math
2+(2*+3/2)
Monday, April 13, 2015 at 1:56pm

Math
How do you write a graph to represent the function x=0,1,2,3 y= 1,4,7,10
Monday, April 13, 2015 at 12:55pm

Math
1/2x + 2/3x
Monday, April 13, 2015 at 12:49pm

Math
What is the funtion rule shown in the table n 3,4,5,6 y 2,1,0,-1
Monday, April 13, 2015 at 12:41pm

math
A statistics student had excluded three outlier values when constructing a histogram of a frequency distribution. His teacher directed him to remake the histogram and include the outliers. Which of the following must be true? 1The shape of the histogram changes. 2The ...
Monday, April 13, 2015 at 11:47am

math
do integers have + and - sign
Monday, April 13, 2015 at 11:09am

math
do integers have = and - sign
Monday, April 13, 2015 at 11:07am

math
what are integers
Monday, April 13, 2015 at 11:07am

math
Which expression has the same value as 54  52  32  33
Monday, April 13, 2015 at 10:16am

math
Given f (t) = t^3 −3 , find f(a - 1).
Monday, April 13, 2015 at 9:12am

math
Given z(t) = square of t +1− t^3 , find z(2).
Monday, April 13, 2015 at 8:13am

math
solve the simultaneous equation 2y=3x-13 5x-6y=23
Monday, April 13, 2015 at 7:22am

math
there are 5 whole numbers in a data set. the least number is 14 and the greatest number is 25. the mean and median are both 19.what numbers could be the values in the data set? i got: 14 19 25. I do not know how to get the other two missing numbers in the data set? Please ...
Monday, April 13, 2015 at 7:14am

math
Factorise completly 18rc-3rd-6r+rd 2.Solve the pair of simultaneous equations.? 2y=3x-13 5x-2y=23
Monday, April 13, 2015 at 7:04am

math
If alpha and beta are the zeroes of the polynomial f (x) = 5y square -7y + 1. Find another polynomial whose zeroes are 2 alpha / beta and 2beta / alpha Whose zeroes ar 1/ 2alpha + beta and 1/2beta + alpha
Sunday, April 12, 2015 at 10:59pm

math
verify the relationship between the zeroes and the coefficient in the polynomial f (x)=root 4x square +5x-2 root3 if alpha and beta are the zeroes of the polynomial x*2+x-2 . Find the values of 1/alpha -1/beta. Find the value alphacube betasquare + alphasquare betacube
Sunday, April 12, 2015 at 10:48pm

Math
Find the radius of the circle if an arc of length 5 ft on the circle subtends a central angle of 135°. (Round your answer to two decimal places.)
Sunday, April 12, 2015 at 10:41pm

Math
Draw a Venn diagram that represent a class of 32 students. All students take Spanish and 20 take French. How many did not take French.
Sunday, April 12, 2015 at 10:35pm

Math: stats
Suppose that the starting salaries of female CFO have a mean of $56,000 and a standard deviation of $12,000. The starting salaries of male CFO have a mean of $50,000 and a standard deviation of $10,000. A random sample of 50 female CFO’s and a random sample of 40 male CFO...
Sunday, April 12, 2015 at 10:04pm

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