Saturday
July 4, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

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 by Rima

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 by Jay

MATH
WHAT IS GREEN AND MAKES HOLES?
Monday, April 13, 2015 by Anonymous

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 by CB

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 by Heanna

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 by amethyst

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 by Angelina

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 by MiKayla Snyder

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 by Ava

math
How do i find the 12th term of the sequence 36,18,9.... using a formula
Monday, April 13, 2015 by matt

math
How do i find the 12th term of the sequence 36,18,9.... using a formula
Monday, April 13, 2015 by john

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 by john

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 by Excel

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 by Bub

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 by Ava

math
find the missing terms for the following sequence geometric sequence 96,__,__,__,6
Monday, April 13, 2015 by john

math
find the 12th term of the sequence 36,18,9....
Monday, April 13, 2015 by john

math
-2h-21+4h<_9
Monday, April 13, 2015 by rachel

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 by Cassie

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 by YOLO

Math
(3/4*)-(*/7) x 3 1/2
Monday, April 13, 2015 by Bongiwe gamede

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 by bryan h

Math
2+(2*+3/2)
Monday, April 13, 2015 by Bongiwe gamede

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 by Jessica

Math
1/2x + 2/3x
Monday, April 13, 2015 by Bongiwe gamede

Math
What is the funtion rule shown in the table n 3,4,5,6 y 2,1,0,-1
Monday, April 13, 2015 by Jessica

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 by heem

math
do integers have + and - sign
Monday, April 13, 2015 by Anonymous

math
do integers have = and - sign
Monday, April 13, 2015 by Anonymous

math
what are integers
Monday, April 13, 2015 by Anonymous

math
Which expression has the same value as 54  52  32  33
Monday, April 13, 2015 by debo

math
Given f (t) = t^3 −3 , find f(a - 1).
Monday, April 13, 2015 by Mat

math
Given z(t) = square of t +1− t^3 , find z(2).
Monday, April 13, 2015 by Pam

math
solve the simultaneous equation 2y=3x-13 5x-6y=23
Monday, April 13, 2015 by charlene

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 by I need help!!!!

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

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 by jhon mathew

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 by jhon mathew

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 by A

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 by Jordae

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 by Ronda

Math: statistics
A DVD rental store wants to know what proportion of its customers are under age 21. A simple random sample of 500 customers was taken, and 375 of them were under age 21. Presume that the true population proportion of customers under age 21 is 0.68. Find the mean and standard ...
Sunday, April 12, 2015 by Statistics

MATH
5x-4y= -3 2x + 7y= 5 How to solve this linear system shown above by using elimination strategy ? (5x-4y= -3) *2 ->10x - 12y= 6 (2x + 7y= 5) *5 -> 10 +35y= 25 ________________________________________​___ -47y = -19 y = -19/47 10x - 12y= 6 10x - 12(0.4) = 6 10x -4.8=...
Sunday, April 12, 2015 by td

Math
The following diagram represents a coffee table . If the scale is 1:30, determine the actual dimensions of the table it is 41/2 length and 2
Sunday, April 12, 2015 by Krista

PHYSICS math
2. An airplane is 50,000 m above an observer and 2.1 km to the west of them and 1.5 km to the north of you. Determine the angle to the plane in the x – y axis and the total distance to the plane from you. Choose the x-axis east, y axis north, and z axis up
Sunday, April 12, 2015 by MICHAEL T.

math
A fish tank is in the shape of a rectangular prism. The dimensions of the tank are shown in the picture below. 84 in. 24 in. 48 in. What is the volume of the tank in cubic feet?
Sunday, April 12, 2015 by Lakshmi

Math
A plane has a height of 1000 m You see the plane at an angle of 40 degrees with the ground . How far away is the plane from where you are standing. Thank you
Sunday, April 12, 2015 by Tina

math
Water is leaking out of an inverted conical tank at a rate of 10600.0 cm3/min at the same time that water is being pumped into the tank at a constant rate. The tank has height 14.0 m and the the diameter at the top is 6.0 m. If the water level is rising at a rate of 27.0 cm/...
Sunday, April 12, 2015 by Anonymous

math
Which is not a combination? A. Choosing 3 toppings for your Pizza. B. Lining 3 students up in a row. C. Choosing 2 toppings from a tray of 10. D. Choosing 5 students to represent a class of 30. Is the answer D? Thank you for your help.
Sunday, April 12, 2015 by anonymous

Math
How do I solve this problem? 6C3 A. 120 B. 720 C. 20 D. 240 Is it 6*5*4*3*2*1
Sunday, April 12, 2015 by Jon

Math
the cost of renting a speed boat is $25 plus an additional fee of $12 for each hour the boat is rented. which equation can be used to find the c, the cost for renting the boat for h hours. a. c= 12h +25 b. c= 25h + 12 c. c= 12(h+25) d. c= 25 (h+12)
Sunday, April 12, 2015 by Angelina

MATH WORD PROBLEM HELP PLEASE
Mr. Wu needs to buy a right cylindrical fish tank that holds between 75 and 100 cubic meters of water. Using only these numbers: 2,3,4,5,6, and 7, identify a radius and a height for three different tanks that would fit Mr.Wu"s requirements. The same number may be used ...
Sunday, April 12, 2015 by Kimbo

Math
which set of measures could be side lengths of a triangle? a. 4 in., 9 in., 12 in b. 3 cm.,6 cm, 9 cm c. 4 mm, 12, mm, 20 mm d. 5 ft, 6 ft, 13 ft i don't know how to get the answer so can u please explain?
Sunday, April 12, 2015 by Angelina

math problem HELP ME
Andre drew four congruent triangles, with legs a and b units long and hypotenuse c units long. Then, Andre arranged the triangles to form a large square. He then wrote two different expressions for the are of the large square. Since each side measures c, he represented the ...
Sunday, April 12, 2015 by Kimbo

Math
Determine the height of a tree when it makes a shadow on the ground of 5 ft . The shadow makes all ahole of 40 degrees from the ground to the top of the tree.
Sunday, April 12, 2015 by Sharon

Math
Find the scale dimensions of a room that measures 10 ft by 8 ft using the scale 1 cm= 4 ft
Sunday, April 12, 2015 by Sharon

Math
A plane has a height of 1000 m. You see the plane at an angle of 40 degrees with the ground . How far away is the plane from where you are standing.
Sunday, April 12, 2015 by Michelle

Math
A wall has dimensions 25 m by 10 m represent the wall with a drawing if the scale is 1 cm represents 5 m
Sunday, April 12, 2015 by Michelle

math
five hundred raffle tickets are sold for $2 each. one prize of $400 is to be awarded. raul purchases one ticket. what is his expected value and fair price of the ticket.
Sunday, April 12, 2015 by brittany

business math
Jen purchased a condo in Naples Florida for $699,000. She put 20% down and financed the rest at 5% for 35years. What are Jens total finance charge?
Sunday, April 12, 2015 by sara

math
For a experiment, Jenna needs to make a dilute solution that is 10 ounces of 40% acid. But Jenna only has solutions that are 30% acid and 70% acid. How many ounces of 70% acid solutions should she use? A. 2.5 ounces B. 5 ounces C. 7.5 ounces D. 8 ounces Not sure if I would ...
Sunday, April 12, 2015 by vincent

math
Erin is making a pitcher of lemonade. Her pitcher is a cylinder with a diameter of 8.6x10^-2 meters and a height of 0.44 meters. What is the approximate total amount of lemonade that will fit in her pitcher? A.2.6 x10^-3 cubic meters B.1.0x10^-3 cubic meters C.2.6x10^-2 cubic ...
Sunday, April 12, 2015 by vincent

math
29.Paige and Brooke make iced tea. Paige makes 18 ounces of iced tea that is 7% sugar. Brooke makes 10 ounces of iced tea that is 1% sugar. They wanted to combine their tea to have 12 ounces of iced tea that is 3% sugar. How many sugar. How many ounces will Brooke have to ...
Sunday, April 12, 2015 by Rabie

Math Please Help Me
1. At your summer job with a research company, you must get a random sample of people from your town to answer a question about spending habits. Which of the following methods is most likely to be random? You survey customers at the local shopping mall. You survey people ...
Sunday, April 12, 2015 by YOLO

math
A gardener rested his hose against a shed. The hose made a 50° angle with the ground
Sunday, April 12, 2015 by Briana

math
25. The Great Pyramids weigh 6x10^9 kilograms. The Space Shuttle weighs 2x10^6 kilograms. How many times heavier are the Pyramids than the Space Shuttle? A.The Pyramids are 3 times heavier than the space shuttle. B.The pyramids are 30 times heavier than the Space shuttle. C....
Sunday, April 12, 2015 by Rabie

math
The height (in feet) of a rocket from ground level is given by the function f(t) = -16t^2 + 160t. What is the instantaneous velocity of the rocket 3 seconds after it is launched?
Sunday, April 12, 2015 by azizah

math
3feet+10inches=
Sunday, April 12, 2015 by shafic

Math help!
solve for x (x^2 - x) + (x^2 - x)^1/2 -6 = 0
Sunday, April 12, 2015 by Yin

Math help!
solve for x (x/1-x)^2 - (x/1-x) -6 = 0
Sunday, April 12, 2015 by Yin

Math Help
I already know the answer I just need to know how they got it. Fraction Whole Number 1/5 x 13,500 = 2,700(how did they come up with this answer)
Sunday, April 12, 2015 by YOLO

Math
Write down two unitary fractions whose difference is 1/40
Sunday, April 12, 2015 by Theo

math
the probability sue purchases a dress is 3/5. if she does buy a dress, the probability she buys shoes is 5/8. If she does not buy a dress, the probability she buys shoes is 1/4. If you learn Sue bought shoes, what is the probability she bought a dress?
Sunday, April 12, 2015 by J.Math

Math Word Problem
Andre drew four congruent triangles, with legs a and b units long and hypotenuse c units long. Then, Andre arranged the triangles to form a large square. He then wrote two different expressions for the are of the large square. Since each side measures c, he represented the ...
Sunday, April 12, 2015 by Kimbo

math
Dylan uses the expressions (x2 – 2x + 8) and (2x2 + 5x – 7) to represent the length and width of his bedroom. Which expression represents the area (lw) of Dylan’s room?
Sunday, April 12, 2015 by carlos

Math plz help
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
Sunday, April 12, 2015 by Kimbo

math
what is the linear velocity of a point in Sydney, Australia which is at latitude 33deg 55'S. Radius of earth is 6370km.
Sunday, April 12, 2015 by Alice

Math, Circuits
A DC circuit to a specialized of 3000 ohms, a 500 ohms, and 10 000 ohms resistor in series. The series current is 15 mA. Find the Voltage drop across R1.
Sunday, April 12, 2015 by Camille

Math
f(x)= ¡Ìx+4, g(x)= 2/¡Ì7-2x 1. The domain of f is_______(in interval notation) 2. The domain of g is ______(in interval notation) 3. (f+g)(0)= 4. (f+g)(-5)=
Sunday, April 12, 2015 by Yin

Math
(a) Straight line passes through the point (-2,8) and is parallel to the line x+2y=4 Slope Intercept Equation is: (b) Straight line passes through the point (-1,9) and is perpendicular to the line 5x+y=4 Slope Intercept Equation is: (c) Determine the center and the radius of ...
Sunday, April 12, 2015 by Yin

Math
For the function g(x) = 2x^2-3x determine the following expression/quantity. a. g(x+h) -g(x-h) / 2h = Using the results of Part A b. g(3.1)-g(2.9) / 0.1 =
Sunday, April 12, 2015 by Yin

Math
To support a damaged tree, a guy wire is attached to it and secured to a peg in the ground some distance away ( see the diagram below). 2 ft is by the guy wire 8 ft and 50 degrees
Sunday, April 12, 2015 by Krista

Math
A room measures 15 ft by 12 ft . Sketch and label a diagram and then calculate its area and perimeter
Sunday, April 12, 2015 by Krista

Math
Andre drew four congruent triangles, with legs a and b units long and hypotenuse c units long. Then, Andre arranged the triangles to form a large square. He then wrote two different expressions for the are of the large square. Since each side measures c, he represented the ...
Saturday, April 11, 2015 by Kimbo

Math
Charlie says that y=2x^2 is not a function because the same y value sometimes corresponds to more than one x-value. x -2 -1 0 1 2 y 8 2 0 2 8 Is Charlie correct? EXPLAIN PLZ BC I'M LOST
Saturday, April 11, 2015 by Kimbo

Math
A wheelchair ramp to a public building forms a 15 degree angle with ground and reaches a height of 2.3 metres above the ground. A) fill in these values on the diagram to the right. B) Label the length of the ramp, X . Then find its length ( to one decimal place)
Saturday, April 11, 2015 by Lori

Math
A room measures 3 m by 5 m. A scale drawing is to be made, using a scale of 1 cm=0.5. Find the dimensions of the scale drawing and provide sketch of this room drawn to scale.
Saturday, April 11, 2015 by Lori

Math
A rectangle has dimensions 4 ft by 6 ft. Show that if the length and width are doubled, the area is 4 times as large.
Saturday, April 11, 2015 by Lori

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 by Lori

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 by AC

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 by Kimbo

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 by Kimbo

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 by Kimbo

Math
What is the approximate volume of this sphere, which has a diameter of 12 meters?
Saturday, April 11, 2015 by Kimbo

math
howmanypintsareequivalentto3gallons
Saturday, April 11, 2015 by shafic

math
whatis3feet+7inches=
Saturday, April 11, 2015 by shafic

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 by Kimbo

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 by Kimbo

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 by Kimbo

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 by Excel

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