Thursday
May 28, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

Math
You rolled a number cube number from one to six 12 times. p(5)=2/3 What type of probability is this and why?
Wednesday, April 29, 2015 at 9:38am

Math
A number cube is rolled 160 times. The number 2 comes up 39 times. what is the experimental probability of rolling a 2? What is the theoretical probability of rolling a 2? A. 39/160 ; 1/80 b. 1/6 ; 39/160 C. 39/160 ; 1/6 D. 121/160; 1/6 My answer is B. Is this right????
Wednesday, April 29, 2015 at 9:30am

math
5.8 + 5.758
Wednesday, April 29, 2015 at 7:07am

math
Find the surface area of the cylinder to the nearest whole number. The figure is not drawn to scale. 13 in on top, 14 in around/
Wednesday, April 29, 2015 at 4:00am

math
Show that the twenty-first,thirty-seventh and sixty-fifth term of a linear sequnce are consecutive terms of an exponential sequnce whose common ratio is 7/4
Wednesday, April 29, 2015 at 3:46am

math
suppose that 8 turns of a wire are wrapped around a pipe with length of 60 inches and a circumference of 4 inches, so that the wire reaches from the bottom of the pipe to the top. what is the length of the wire
Tuesday, April 28, 2015 at 11:02pm

math
.5 L/s gal/h .5 L/1s= .5L/1s x 3.7 gal/1 h
Tuesday, April 28, 2015 at 9:31pm

Math help
How would I find the volume of a cube with edge lemgth of 3sqrt2 cm?
Tuesday, April 28, 2015 at 9:19pm

math
What function would have a zero at sqrt2?
Tuesday, April 28, 2015 at 9:18pm

Math
By using the numbers 1, 1,1, 5 and 6 only once but need to use all and using any math get the number 51
Tuesday, April 28, 2015 at 8:51pm

MATH
NOT INDEPENDENT A box contains four white, three red, and two black marbles. Three marbles are chosen at random. a. What is the probability that all three are the same color? b. What is the probability that all three are different colors?
Tuesday, April 28, 2015 at 8:50pm

5th grade math
how can you use compatible number to estimate 14675 divided by 7 so that the estimate is greater that the actual quotient? how can you use compatible numbers so the estimate is less that the actual quotient.
Tuesday, April 28, 2015 at 8:27pm

Math
Can someone please check my answers? A yard has a square gate that has an area of 8 square meters. 1. What is the height of the gate in meters? Answer: 28 meters 2.How many feet would that be? Answer: 8.4 feet 3. If each side was 1 foot longer, what would be the area of the ...
Tuesday, April 28, 2015 at 8:04pm

MATH
A box contains four white, three red, and two black marbles. Three marbles are chosen at random. a. What is the probability that all three are the same color? b. What is the probability that all three are different colors?
Tuesday, April 28, 2015 at 7:34pm

Math
Please help me solve this question. Two conjugate diameters of the ellipse x^2/a^2+y^2/b^2=1 are drawn to meet the directrix at P and Q. PM is drawn perpendicular to OQ and ON perpendicular to OP. Prove that PM and ON meet at a fixed point and state its coordinates.
Tuesday, April 28, 2015 at 7:24pm

Math
Women make up 5% of all film directors. There are 122,500 film directors working. How many women are directing films?
Tuesday, April 28, 2015 at 7:23pm

math
A baker can make a cupcake for $2.30. She would like a profit of 50 cents each. What is the percent markup on the cupcake, to the nearest tenth of a percent?
Tuesday, April 28, 2015 at 7:20pm

math
women make up 5% of all teachers. there are 122,500 teachers working. how many women are teAchers?
Tuesday, April 28, 2015 at 7:13pm

Math
Let P and Q be two points on a parabola whose vertex is O. If the chord PQ meets the axis at K and the tangent to the parabola at P and Q meet the axis at T1 and T2. Prove that OT1.OT2=OK^2
Tuesday, April 28, 2015 at 7:08pm

Math
Two conjugate diameters of the ellipse x^2/a^2+y^2/b^2=1 are drawn to meet the directrix at P and Q. PM is drawn perpendicular to OQ and ON perpendicular to OP. Prove that PM and ON meet at a fixed point and state its coordinates.
Tuesday, April 28, 2015 at 7:00pm

math
Two towns on a map are 2 1/4 inches apart. The actual distance between the two towns is 45 miles. what does one inch on the map represent?
Tuesday, April 28, 2015 at 6:59pm

math
if $6000 is invested at 3% compounded quarterly, what is the amount after 6yrs?
Tuesday, April 28, 2015 at 6:46pm

Math (i'm confused)
commission of 10% on a sale of $2500? I think you are supposed to multiply but i'm not sure.....
Tuesday, April 28, 2015 at 6:32pm

Math
I need to find what the total commission of 14% on a $3000 sale. Can u please show in detail how to solve this. Please and thank u. :)
Tuesday, April 28, 2015 at 6:25pm

Math
file:///C:/Users/SCHOOL/Pictures/math.JP​G Determine which function has the greater rate of change 1.The rates of change are equal. 2.The graph has a greater rate of change. 3.The table has a greater rate of change.*** 4.none of the above Is this right?
Tuesday, April 28, 2015 at 6:20pm

Math
A solid is made up of two rectangular prisms how would I find the surface area of the solid? The diagram shows 3 feet on top, 6 feet on the left side, 7 feet on the bottom, 2 feet and 4 feet to the right Our teacher gave us the answer of 156 then told us to figure out how she ...
Tuesday, April 28, 2015 at 6:19pm

math
what is the total commission of 14% on a $3000 sale??
Tuesday, April 28, 2015 at 6:18pm

Math
Determine which function has the greater rate of change 1.The rates of change are equal. 2.The graph has a greater rate of change. 3.The table has a greater rate of change. 4.none of the above file:///C:/Users/SCHOOL/Pictures/math.JP​G HELP ME UNDERSTAND THIS PLEASE??
Tuesday, April 28, 2015 at 5:39pm

math
35 percent of the total length of the screen at the movies is 51.8 feet. What is the total length of the screen? Please give full details.
Tuesday, April 28, 2015 at 5:20pm

math
The trunk of a leaning tree makes an angle of 12 degrees with the vertical. To prevent the tree from falling over, a 35.0 m rope is attached to the top of the tree and is pegged into level ground some distance away. if the tree is 20.0 m from its base to its top, calculate the...
Tuesday, April 28, 2015 at 5:18pm

Math Check
Can someone check this for me? Thanks! Directions: Two integers from 1 through 40 are chosen by a random number generator. Write your answer as a fraction in simplest form a/b. P(both numbers are less than 30) (my answer: 9/16)
Tuesday, April 28, 2015 at 5:12pm

MATH
35 PERCENT OF THE TOTAL LENGTH OF THE SCREEN AT THE IMAX IS 51.8 FEET. wHAT IS THE TOTAL LENGTH OF THE SCREEN?
Tuesday, April 28, 2015 at 5:08pm

math
A wheelchair ramp near the door of a building has an incline of 15 degrees and a run of 7.11 m from the door. Calculate the length of the ramp to the nearest hundredth of a metre
Tuesday, April 28, 2015 at 4:57pm

MATH
IF THE LOAN IS FOR $18000 AND THE INTEREST RATE IS 6.5%. iF THE INTEREST PAID IS $4680.0 HOW MANY MONTHS IS THE LOAN FOR?
Tuesday, April 28, 2015 at 4:42pm

Math Calc
A factory produces bicycles at a rate of 100+0.4t2−0.7t bicycles per week (t in weeks). How many bicycles were produced from day 15 to 28? Hint: the lower limit of integration should be the integer number of weeks preceding day 15, i.e. a=2, and the final answer should ...
Tuesday, April 28, 2015 at 4:34pm

Math
Find area of the region under the curve y=9−2x2 and above the x-axis. area=?
Tuesday, April 28, 2015 at 3:52pm

math
1. A bag contains 9 tiles numbered 1 to 9. P (4)= 1/9. What type of probability is illustrated and why? a) experimental; the result is found by repeating and experiment. b) experimental; the result is based on the number of possible outcomes. c) theoretical; experimental; the ...
Tuesday, April 28, 2015 at 2:49pm

math
the shape of the base is square and has 5 sides
Tuesday, April 28, 2015 at 1:49pm

math
a pyramid on a base 4cm has a slant edge of 6cm calculate the volume of thn pyramid
Tuesday, April 28, 2015 at 1:42pm

Math
Use the graph below to answer the following question. I'll post the link to the graph below. Find the slope. A. 2 B. -1/2 C. -2 D. 1/2 Honestly I'm horrible at Math so I can't really pick a answer can someone please help me? Please explain to me how to work this ...
Tuesday, April 28, 2015 at 12:54pm

Math
do this values in the table represent a linear function? If so what is the function rule? X -2. 0. 2. 4 Y -4. 0. 4. 8 A) the values do not show linear function B) yes they show y=1/2x+4 C) yes they show y=2x+2 D) yes they show y=2x My answer: C or D?
Tuesday, April 28, 2015 at 12:44pm

math
Assume that if students buy more than $250 of art supplies in one visit, they may put it on a student account with terms of 2/10, n/30. If a student purchases $250 of supplies on September 16, what amount is due by September 26? How much would the student save by paying early?
Tuesday, April 28, 2015 at 12:09pm

Math
Find the probability for the experiment of tossing a six-sided die twice. Put the answer in a/b form. P(the sum is odd or prime)
Tuesday, April 28, 2015 at 11:49am

Math Check
Hi! Can someone check my answers for this question? Thanks!! Directions: Look for the probability for an experiment that deals with the drawing of two marbles (without replacement) from a bag containing one green, two yellow, and three red marbles. Put the final answer in a/b ...
Tuesday, April 28, 2015 at 11:16am

Math
The cost of a student ticket to the school play is $7. Write an equation that correctly relates the cost, c, for a particular number of student tickets, s, purchased. Identify the independent and dependent variables.
Tuesday, April 28, 2015 at 10:48am

Math
A deck from a card game is made up of about 108 cards. Twenty-five of them are red, yellow, blue, and green, and eight are wild cards. Each player is randomly dealt a seven-card hand. Write the final answer as a decimal rounded to six decimal places. 1.) P(a hand containing ...
Tuesday, April 28, 2015 at 10:35am

Math Check
Hi! Can someone check my answers for this question? Thanks!! Directions: Look for the probability for an experiment that deals with the drawing of two marbles (without replacement) from a bag containing one green, two yellow, and three red marbles. Put the final answer in a/b ...
Tuesday, April 28, 2015 at 9:50am

Math -
screenshot20120601at12.20.29pm.png Can you click on this - hopefully it comes up and tell me if A is the correct choice - to me it is the only one that can not be proven. Thank you
Tuesday, April 28, 2015 at 9:38am

math
Given A(a,2) B(3,4) and C(-2,-1). If A is at the same distance to the points B and C. Find a.
Tuesday, April 28, 2015 at 8:51am

Math Help
1.) P(E) = 0.7. Find the probability that the event WILL NOT happen. P(E’)= 2.) P(E') = 17/35. Look for the probability that the event WILL happen. Put answer is a/b form. P(E)=
Tuesday, April 28, 2015 at 8:48am

Math
There are two integers from 1 through 40 and are chosen by a random number generator. Write the final answer in a/b form. 1.) P(the same number is chosen twice) 2.) P(both numbers are less than 30) 3.) P(one number is even and one number is odd) 4.) P(both numbers are even)
Tuesday, April 28, 2015 at 8:09am

math
find the point which divides the segment from (-5,-4) to (6,-2) in the ratio 2:3
Tuesday, April 28, 2015 at 7:22am

math
Lisa bought a tank for her hermit crab. The tank can hold 1,331 cubic inches of water and includes a top. The base of the aquarium is a square. The height of the acquarium is 11 inchew. A)What is the length of each side of the base of the tank? B)What shape is Lisa's tank...
Tuesday, April 28, 2015 at 2:53am

math
Jessie has a piece of cardboard that is 8.5 inches by 11 inches. She makes a picture frame with the cardboard by cutting out a 4 inch by 4 inch square from the center of the cardboard. What is the are of the frame?
Tuesday, April 28, 2015 at 2:14am

Math
Mitosis is a process of cell reproduction in which one cell divides into two identical cells. A bacterium called E. coli often causes serious food poisoning. It can reproduce itself in 15 minutes. a) Starting with one bacterium, make a table with time in 1/4 -h blocks and the ...
Tuesday, April 28, 2015 at 2:08am

math
A cardboard box is open at one end and is shaped like a square prism missing one of its square bases. The volume of the prism is 810 cubic inches, and its height is 10 inches. A)What is the length of each side of the base? B)Draw a net of the box C)How much cardboard is used ...
Tuesday, April 28, 2015 at 2:04am

math
A store manager set up a cardboard display to advertise a new brand of perfume. The display is a square pyramid whose base is 18 inches on each side. The height of each triangular face of the pyramid is 12 inches. How much cardboard was used to make the display?
Tuesday, April 28, 2015 at 1:52am

math
The volume inside a rectangular storage room is 2,025 cubic feet. The room is 9 feet high. Find the area of the floor.
Tuesday, April 28, 2015 at 12:55am

5th grade (math)
Leslie and Jess were racing at school. Leslie was able to complete the race in 12 1/2 seconds, whereas jess finished in13 1/10 seconds. How much faster did Leslie run? PLs help me!!
Tuesday, April 28, 2015 at 12:46am

math
A samll bar of gold measures 40 mm by 25 mm by 2 mm. One cubic millimeter of gold weighs about 0.0005 ounce. Find the volume in cubic millimeters and the weight in ounces of this small bar of gold. Thank you!
Tuesday, April 28, 2015 at 12:06am

math
The area of the base of a rectangular juice box is 4 1/2 square inches. If the volume of the box is 18 cubic inches, how tall is the box?
Monday, April 27, 2015 at 11:51pm

Math
Identify all sums, products, and factors in the expression (x+5)(y+9) +(2+x)(y+23)
Monday, April 27, 2015 at 11:43pm

math
If i had a pizza, and i ate4/8 of the pizza and my sister ate 3/8 of the pizza, how much pizza did we eat
Monday, April 27, 2015 at 11:18pm

math
are this correct- x-7=18 x-7=18+7 x=25
Monday, April 27, 2015 at 11:17pm

Math
A printing company makes plastic banners 15 ft long by 6 feet wide. How many square meters is the banner? Use 1 foot=0.305meters
Monday, April 27, 2015 at 11:17pm

math
If
Monday, April 27, 2015 at 11:16pm

Math
Look for the probability for an experiment of which requires you to select one card from a standard deck of 52 playing cards. Write your final answer as a fraction in the simplest form of a/b. 1.) P(the card is not a face) 2.) P(the card is a king) 3.) P(the sum is at least 7...
Monday, April 27, 2015 at 11:14pm

Math help!
Hilda has a rectangular garden by the river in front of her house. The area she uses for planting tomatoes is three times as large as that she uses for beets. If she has 270 yards of fencing material to enclose the garden to protect it fro, rodents, will the total area attain ...
Monday, April 27, 2015 at 11:11pm

Math
Manuel earns $400 per week plus a 3% commission on everything he sells. Write and solve and inequality to find out how much he must sell to have a weekly income of at least $700.
Monday, April 27, 2015 at 10:11pm

math
Determine which function has the greater rate of change in questions 1−3 1. x y ------- -1 0 0 1 1 2 2 3 (1 point) The rates of change are equal. The graph has a greater rate of change.*** The table has a greater rate of change. none of the above 2. y = 2x + 7 The slopes...
Monday, April 27, 2015 at 10:02pm

Math 222
Please help me solve this equation? Sorry my addition and equal key does not work. -x^2-3x plus 5 equal 0
Monday, April 27, 2015 at 9:59pm

Math
1. The towns population increased from 80,000 to 90,000 in ten years. What was the percent of increase? I didn't understand this one. 2. A $15 item on sale for $12 is marked down what percent? 20% 3. If Jenna buys and item for 40% off the regular price, will she pay more ...
Monday, April 27, 2015 at 9:39pm

Math, please help
The measurement of angle BC is 30° less than the measurement of angle AB. What is the measurement of angle AB? AB-30°=180 AB=150° ?????
Monday, April 27, 2015 at 9:23pm

Math
(a) T(m) = −22.75 cosπ/6(m − 1) + 52.55 = 48 m =
Monday, April 27, 2015 at 9:17pm

math
I want to check my answers 1. The town population increased from 80,000 to 90,000 in ten years. What was The percent of increase? 2. A $15 item on sale for $12 is marked down what percent 3. If Jenna buys an item for 40% off the regular price will he pay more or less than half...
Monday, April 27, 2015 at 9:10pm

Math
If 5 times a number n is subtracted from 15, the result is negative. Which of the following gives the possible value(s) for n? A. 0 only B. 3 only C. 10 only D. All n is greater than 3 E. All n is less than 3
Monday, April 27, 2015 at 8:50pm

Math
Calculate the average rate of change of the function from θ = π/10 to θ = π/8. (Round your answer to two decimal places.) f(θ) = 9 sin(9θ)
Monday, April 27, 2015 at 8:38pm

math, if i have correct answer
Prove the identity: tan^2O/ 1 + tan^20 = sin^20 I get 1=1, but others have got sin^2=sin^2 Who's right?? Because there is no answer for this question at the back of the book
Monday, April 27, 2015 at 8:30pm

Math
Part 1: Suppose you divide a polynomial by a binomial. How do you know if the binomial is a factor of the polynomial? Create a sample problem that has a binomial which IS a factor of the polynomial being divided, and another problem that has a binomial which is NOT a factor of...
Monday, April 27, 2015 at 8:29pm

hard math
I'm having so much trouble doing this worksheet I had for math I don't even know what to do now 👉 and I have to turn it in by Friday 😭 I feel so dumb right now 😞
Monday, April 27, 2015 at 7:58pm

Math
The temperature, t, in degrees Fahrenheit, in a certain town on a certain spring day satisfies the inequality | t - 24 | is less than or equal to 30. Which of the following temperatures, in degrees Fahrenheit, is NOT in this range? F. -10 G. -6 H. -5 J. 0 K. 54
Monday, April 27, 2015 at 7:09pm

Math 222
Posted by Tika on Monday, April 27, 2015 at 5:08pm. Posted by Tika on Monday, April 27, 2015 at 12:44pm. How do I make a perfect square. Sorry my addition key isn't working y^2-18y plus______
Monday, April 27, 2015 at 7:06pm

Math 222
Homework Help: Math 222 Posted by Tika on Monday, April 27, 2015 at 5:10pm. Posted by Tika on Monday, April 27, 2015 at 1:08pm. what is the value of the discriminant and of the real solutions of the quadratic equation? 5x^2-9x plus 2 equals 0
Monday, April 27, 2015 at 7:05pm

Math 222
Posted by Tika on Monday, April 27, 2015 at 5:11pm. Posted by Tika on Monday, April 27, 2015 at 1:03pm. How do I write an quadratic equation whose roots are -1 and -2 and whose leading coefficient is 1. Sorry my equal key does not work blank equals 0
Monday, April 27, 2015 at 7:04pm

math
Sam has 18 coins in his pocket that are either quarters or nickels. The total value of these coins is $3.90. Let q represent the number of quarters and n represent the number of nickels. The following system of equations represents this situation: q+n=18 0.25q+0.05n=3.90 How ...
Monday, April 27, 2015 at 6:18pm

math
A community group bought 25 tickets to a play. Adult tickets cost $30 each and student tickets cost $20 each. In all, the group spent $620 on the tickets. Determine if each equation is a part of the system of equations that can be used to find the number of each type of ticket...
Monday, April 27, 2015 at 6:08pm

Math
I know how to find the surface area of a rectangular prism but, I am not sure when given the coordinates of 4 feet by 6 feet by 8 feet which is which? For example: height, width, length? I don't know which way it goes? Thank You very much for any help you can give me.
Monday, April 27, 2015 at 5:25pm

math
Prove the identity: tan^2O/ 1 + tan^20 = sin^20 I get 1=1, but others have got sin^2=sin^2 Who's right?? Because there is no answer for this question at the back of the book
Monday, April 27, 2015 at 5:22pm

math
Solve each equation for 0<_ 0<_ 2pi(3.14) A) 2cos^20 - sin0 -1=0 My answers: sin0= -1/2 or sin0=1 so 0 = 7pi/6, 11pi/6 and pi/2 But the back of the book says: pi/6, 5pi/6 and 3pi/2
Monday, April 27, 2015 at 5:20pm

Math 222
Posted by Tika on Monday, April 27, 2015 at 1:03pm. How do I write an quadratic equation whose roots are -1 and -2 and whose leading coefficient is 1. Sorry my equal key does not work blank equals 0
Monday, April 27, 2015 at 5:11pm

Math 222
Posted by Tika on Monday, April 27, 2015 at 1:08pm. what is the value of the discriminant and of the real solutions of the quadratic equation? 5x^2-9x plus 2 equals 0
Monday, April 27, 2015 at 5:10pm

Math/ Algebra
Labor Relations Worksheet: Did you hear about the ........ that offers a course for ......... .......? It's called .... ..........(.) #'s (1-27) 1.) (x-4)(x+3)
Monday, April 27, 2015 at 5:09pm

Math 222
Posted by Tika on Monday, April 27, 2015 at 12:44pm. How do I make a perfect square. Sorry my addition key isn't working y^2-18y plus______
Monday, April 27, 2015 at 5:08pm

Math
How do I work out this problem? And then compare it to 1 whole. 0.003 * 10^2=
Monday, April 27, 2015 at 5:00pm

Math help!
Hilda has a rectangular garden by the river in front of her house. The area she uses for planting tomatoes is three times as large as that she uses for beets. If she has 270 yards of fencing material to enclose the garden to protect it fro, rodents, will the total area attain ...
Monday, April 27, 2015 at 4:30pm

math
Write a function rule for the total cost. One frozen yogurt store sells frozen yogurt for $3.00 per cup and $1.25 per topping. Write a linear equation to show the total cost of a cup of frozen yogurt. Then calculate the total price for one cup of frozen yogurt with 4 toppings...
Monday, April 27, 2015 at 3:59pm

Math
Part 1: Suppose you divide a polynomial by a binomial. How do you know if the binomial is a factor of the polynomial? Create a sample problem that has a binomial which IS a factor of the polynomial being divided, and another problem that has a binomial which is NOT a factor of...
Monday, April 27, 2015 at 3:41pm

math- algebra
5 x > 2 x + 18, x € N Please give me the solution to this problem!
Monday, April 27, 2015 at 3:21pm

Math
Solve the equations to the nearest tenth and use the given restrictions. 2. sin theta = -0.204, for 90 degs < theta < 270 degs Ans: 191.8 degs?
Monday, April 27, 2015 at 3:13pm

Math 222
what is the value of the discriminant and of the real solutions of the quadratic equation? 5x^2-9x plus 2 equals 0
Monday, April 27, 2015 at 1:08pm

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