Sunday

July 24, 2016
**Math-Calc**

Find an equation of the tangent line to the curve 2(x2+y2)2=25(x2−y2) (a lemniscate) at the point (3,1). Please help.
*Thursday, May 26, 2016 by Linda*

**Math-Calc**

Suppose that f(x)=6x(3−2x)3. f(x)=6x(3−2x)3. Find an equation for the tangent line to the graph of ff at x=1x=1.
*Thursday, May 26, 2016 by Phil*

**math grade 9**

can someone check over my answers and correct them? *over means fraction 1) What would the slope be for a road that has a rise of 11m and a run of 100m? a. 22 over 100 b. 11 over 100 (THS ONE) c. 15 over 100 d. 30 over 100 2) What would the slope be for a road that has a rise ...
*Thursday, May 26, 2016 by john*

**Math topic part 2**

18. Complete the table. a 5 6 7 8 9 b 3.8 4.6 5.4 (2 points) Essay: 9.39 and 10.6 i did 5.4 divided by 7 times 8 and i received thees answers 1 /2 points I like that you figured out the rule first. Remember, when finding the rule, you want to determine what you do to x to get ...
*Thursday, May 26, 2016 by Newscapepro*

**Math**

Please help me with this ASAP! I need help with this just checking my answers thanks 1. There are 14 blue marbles, 8red marbles, and 12 green marbles in a jar. What is the ratio of the total number of marbles to the number of red marbles? A. 24:8 B. 34:8 (my answer) C. 8:34 D...
*Thursday, May 26, 2016 by Katie*

**Math topic help**

John invest $2,975 at 4% interest compound annually. What will be the balance in the account after? a) 3,272.50 b)3,281.48 c) 5,493.86********* d) 7,735.00 if i am wrong please explain why i am and what i should do, step wise thanks so much and hopfully this helps
*Thursday, May 26, 2016 by Newscapepro*

**Math (Vectors)**

Determine the values of a and b in the following vectors for the indicated property. m=<10,a,15> and n=<2,-3,b> and vector m is parallel to vector n. Thanks in advance!
*Thursday, May 26, 2016 by Ray*

**College Algebra/Drug Calculations**

Good afternoon. I was given a large packet to practice some math to prepare me for drug calculations. For some reason, I cannot get the answer to this fraction. I've tried a few ways, but maybe I forgot a step or am overlooking some silly mistake... 5/6 x 2/3 The answer is...
*Thursday, May 26, 2016 by NursingStudent*

**Math**

If you walk5/6 mile and then jog 4/5 mile, what is the total distance covered? How much farther did you walk than jog?
*Thursday, May 26, 2016 by Shawn*

**Math**

The capcity of an elevator is either 15 children or 11 adults.If 12 children are currently in the elevator, how many adults can still get in?
*Thursday, May 26, 2016 by Anonymous*

**plz help math**

The formula for the force between two objects is F=GMm/r^2 where M and m are the masses of the two objects, G is a constant, and r is the distance between them. Solve the formula for m .m=Fr^2/GM m=r^2/FGM m=GM/Fr^2 m=FGM/r^2
*Thursday, May 26, 2016 by Claire*

**Calc-Math**

The graphs of the function f (given in blue) and g (given in red) are plotted above. Suppose that u(x)=f(x)g(x) and v(x)=f(x)/g(x) Find each of the following:u(x) and v(x)..
*Thursday, May 26, 2016 by Jenny*

**math**

Elimination was used to solve a system of equations. One of the intermediate steps led to the equation 9x=27 . Which of the following systems could have led to this equation? 4x+3y=24 −5x−3y=3 7x−2y=15 x+y=6 9x+2y=21 −9x−2y=21 10x−y=15 x+y...
*Thursday, May 26, 2016 by Claire*

**Math**

What is 57% of 11? I just need help!
*Thursday, May 26, 2016 by Hi*

**Ratios math **

The ratio of the number of cars to the number of SUVs in a parking lot is 4:1. The ratio of the number SUVs to the number of Minivans is 4:5. (A) Find the ratio of the number of minivans in the parking lot. (B) if there are 20 minivans, how many vehicles are there all together...
*Thursday, May 26, 2016 by Catania *

**Math**

PQR has vertices p(5, -1), q(0.8), and r(7,5). It is translated right 3 units and up 6 units. Find the coordinates of P', Q', and R'. A) P(8,5), Q(3,14), R(10,11) B) P(2,5), Q(-3,14), R(4,11) C) P(8,-7), Q(3,2), R(10,-1) D) P(2,-7), Q(-3,2), R(4,-1) Please help ...
*Thursday, May 26, 2016 by Waffles*

**Math**

Marting throws a baseball upwards at a velocity of 80 ft/sec. The following equation models this situation: H (t) = -16t squared + 80t + 6 , where H(t) is the height of the ball in feet and t is the time in seconds after the ball was released. HOW LONG WILL IT TAKE THE BALL TO...
*Thursday, May 26, 2016 by Kiki*

**Math**

In how many ways one can bake a cake using two of five possible sweeteners and one of three possible flours?
*Thursday, May 26, 2016 by Tuuy*

**Math**

Marting throws a baseball upwards at a velocity of 80 ft/sec. The following equation models this situation: H (t) = -16t squared + 80t + 6 , where H(t) is the height of the ball in feet and t is the time in seconds after the ball was released. HOW LONG WILL IT TAKE THE BALL TO...
*Thursday, May 26, 2016 by Kiki*

**math**

A wholesaler purchases wheat at rs 280 per quintal and sells the same at rs 360 per quintal. if his overhead expenses were rs 10 per quintal, find his profit percent.
*Thursday, May 26, 2016 by sad*

**math**

By selling a clock for rs 600 a man loses 25%. what should be the selling price for a profit of 25%.
*Thursday, May 26, 2016 by jeo*

**Math**

If a wheel has a circumference of 1.5 metres how far does it travel in 26 revolutions?
*Thursday, May 26, 2016 by Candy*

**math**

Krishan bought 2400 bananas at rs 15 a dozen. he sold 1350 of them at rs 4 and the remaining at 5 for rs 8. fins his gain or loss percent. /*( requested from my side to reply soon and you are doing good job thank you forever)*/
*Thursday, May 26, 2016 by jeo*

**math**

A man sold two clocks for rs 240 each, gaining 20% on one and losing 20% on the other find his gain or loss percent?plz reply soon
*Thursday, May 26, 2016 by jeo*

**math**

A newspaper vendor sells newspapers at a commission of 6%. He earns rs 75 per day. what is the cost of newspapers? /////////***vvvv.urgent****////////
*Thursday, May 26, 2016 by jeo*

**math**

A newspaper vendor sells newspapers at a commission of 6%. He earns rs 75 per day. what is the cost of newspapers?
*Thursday, May 26, 2016 by jeo*

**Math**

In an used book store, there are some different mystery novels on a shelf. Suppose there are 64 different ways to buy these novels, including not buying them. How many mystery novels are there on the shelf?
*Thursday, May 26, 2016 by Cindy*

**Math**

The right triangle has an angle of 53 degrees. The opposite side is 6.4cm long. What is the adjacent ?
*Thursday, May 26, 2016 by Mona*

**math**

If i put 75,000 in a trust fund how much would i have in 8 years
*Thursday, May 26, 2016 by marsha*

**math**

a ________ represnts 25% of the data
*Wednesday, May 25, 2016 by hannah*

**Math**

A committee of 5 people is to be formed from a group of 7 women and 4 men. How many possible committees can be formed if: the committee then must chose a president and a vice president, how many ways could these two positions be chosen? why is it permutations not combination? ...
*Wednesday, May 25, 2016 by Cindy*

**Math**

On a centimeter dot grid, draw all the possible rectangles with a perimeter of 14 cm and sides whose lengths are whole centimeters. Label the lengths of two adjacent sides of each rectangle.
*Wednesday, May 25, 2016 by Martha*

**Math**

The heights of Japanese maple trees are normally distributed with a mean of 6 meters and a standard deviation of 0.2 meter. What percent of Japanese maple trees are between 5.5 meters and 6.7 meters tall?
*Wednesday, May 25, 2016 by Joe*

**Math**

Leo wants to paint a mural that covers a wall with an area of 1734 swuate feet. The height of the eall is 2/3 of its length.What is the length and the height of the wall?
*Wednesday, May 25, 2016 by Mecca*

**Math**

The pressure P of a gas varies inversely with its volume, V. Pressure is measured in units of Pa. Suppose that A particular amount of a gas is initially at a pressure of 104 Pa at a volume of 108 L. If the volume is expanded to 432 L , what will the new pressure be ?
*Wednesday, May 25, 2016 by Bella*

**math**

An account earns annual simple interest. Find the balance of the account. $2000 at 9% for 6 months = $
*Wednesday, May 25, 2016 by Caroline*

**math**

Megan had a gross pay last week of $980.00. If her total deductions were $161.35, what was her net pay?
*Wednesday, May 25, 2016 by rachelle*

**math**

what is 875 multiplied by 3/2?
*Wednesday, May 25, 2016 by Jessie*

**Math**

You have wood donated from Home Depot to build a booth to sell the shirts and hats from, but you need to provide dimensions for the panels. They are 4 feet high and come in a variety of lengths. The space you have to build your triangular stand is 5 ft by 12 ft rectangle in ...
*Wednesday, May 25, 2016 by Matt*

**Math**

Create a container to store extra shirts and hats. Some shirts and hats get sold and no one comes to pick them up. They must be stored for next year. What size cylinder do I need to hold a volume of 800 in3 of shirts and hats(The cylinder must hold that volume), how do you ...
*Wednesday, May 25, 2016 by Matt*

**Math**

You have wood donated from Home Depot to build a booth to sell the shirts and hats from, but you need to provide dimensions for the panels. They are 4 feet high and come in a variety of lengths. The space you have to build your triangular stand is a 5ft by 12ft rectangle in ...
*Wednesday, May 25, 2016 by Matt*

**math**

Angle A measures (x + 6) °. Angle B is complementary to angle A and measures (3x - 8) °. find the value of x and the measures of each angle
*Wednesday, May 25, 2016 by illia*

**math**

The wheel in the figure has a diameter of 1 yard. The wheel is rolled forward as shown until the point marked A has undergone exactly one revolution around the wheel's axis. What number is represented by the distance in yards that the wheel has traveled along the ground? ...
*Wednesday, May 25, 2016 by Anonymous*

**math**

You roll a number cube twice. Find the probability of the event. Rolling a number less than 2 and then a number more than 6 Rolling an odd number then an even number Rolling a 7 then a 5
*Wednesday, May 25, 2016 by bella*

**Math**

What size cylinder do I need to hold a volume of 800 in3 of shirts and hats(The cylinder must hold that volume)
*Wednesday, May 25, 2016 by Matt*

**math**

If the first term in an arithmetic sequence is 15 and the tenth term is 69. What is the fourth term in the sequence?
*Wednesday, May 25, 2016 by rebecca*

**math**

In a box filled with 60 colored chips, 1/6 are blue, 1/2 are white, 1/4 are yellow, and 1/2 are purple. Find the probability of picking at random a purple chip or a white chip?
*Wednesday, May 25, 2016 by Anonymous*

**math**

A scale drawing of an American flag is 14 inches long and 6 inches tall. The actual flag is 3 feet tall. a. True or False, the scale of the drawing is 2 in. : 1 ft. is it false? b. What is the perimeter of the american flag in the scale drawing? c. What is the area of the ...
*Wednesday, May 25, 2016 by valentina*

**Math **

Austin is building a rabbit pen with 25 feet of fence. What are the dimensions of the rectangle hr should build to have the greatest possible area
*Wednesday, May 25, 2016 by Sn*

**math**

Joan is going on a bike trip. She plans to ride 9 miles in 45 minutes. At what rate mi/min must she travel?
*Wednesday, May 25, 2016 by help*

**MATH**

Find the largest possible rectangular area you can enclose assuming you have 128 meters of fencing.
*Wednesday, May 25, 2016 by Anonymous*

**math**

Marie is using a rectangular box to ship a framed painting to a friend. The box is 20 inches wide, 24 inches long and 6 inches deep. What is the surface area of the box?
*Wednesday, May 25, 2016 by carl*

**math**

Growing up you lived in a country village. When you left for college, the population was 840. You recently heard that the population has grown by 5%. What is the present population?
*Wednesday, May 25, 2016 by Anonymous*

**math**

an airplane flies at 150 mph and heads N 30 degrees east. A 40 mph wind blows it in the direction S 30 degrees E. What is the planes resultant velocity
*Wednesday, May 25, 2016 by barry*

**Math**

To get to school, you need to walk 9 blocks south and then 12 blocks east. What's the diagonal distance from the start.
*Wednesday, May 25, 2016 by Anonymous*

**math**

A triangle has side lengths of 6 inches, 10 inches, 8 inches. How many triangles are possible?
*Wednesday, May 25, 2016 by Finn*

**Math**

1.what payment methods borrow money from a financial institution 2.what payment methods does not borrow money from a financial institution
*Wednesday, May 25, 2016 by Siarp*

**Math**

Shoes are on sale for 15% off with an addition of another sale adding 25%. The shoes start at $80.00.
*Wednesday, May 25, 2016 by Anonymous*

**Math**

148 percent out of 250%
*Wednesday, May 25, 2016 by Anonymous*

**math**

A picture is copied onto a sheet of paper 8 inches by 10 inches. A 2-inch margin is left all around the picture. Find the length, width, and area of the picture. Length = 10 inches Width = 8 inches Area = 80 inches squared am i right?
*Wednesday, May 25, 2016 by John*

**math**

7x + 5 8x + 9 find the value of x so that both the sum of the equations equal 180 when added together.
*Wednesday, May 25, 2016 by sierra*

**math**

you deposit $200 in an account earning 3.5% simple interest. How long will it take for the balance of the account to $221?
*Wednesday, May 25, 2016 by Danielle*

**Math**

If a pulse is 20 beats in 15 second what is the pulse for 1 min.
*Wednesday, May 25, 2016 by Jj*

**math**

An account earns annual simple interest. Find the balance of the account. $250 at 4% for 1 year = $260 $2000 at 9% for 6 months = $?
*Wednesday, May 25, 2016 by Caroline*

**Math**

5+x=59 What is x
*Wednesday, May 25, 2016 by Anonymous*

**math**

1. Original price: $92 Discount: 15% What is the sale price? 2. Original price: $110 Sale price: $91.30 What is the discount? 3. Discount: 33% Sale price: $134.00 What is the original price? 4. Cost to store: $32 Markup: 16% What is the selling price?
*Wednesday, May 25, 2016 by jamie*

**math**

Use the percent of change to find the new amount. $104 increased by 22% 120 brushes decreased by 25%
*Wednesday, May 25, 2016 by Darcy*

**Please help me with this math**

Solve for x. and show your work. -3x+5 less than or equal to -22 Note:where it says "less than or equal to" its the less than or equal to sign. Please help me!
*Wednesday, May 25, 2016 by Miracle*

**Math- Prob Stat**

In a Gallop Poll, 35% 18-23 year old's stated that they believe in ghosts. Find the probability that out of 16 students aged 18-23: A. Exactly 5 said they believed in ghosts. B. Exactly 5 said they do not believe in ghosts. C.Less than 11 said they do not believe in ghosts...
*Wednesday, May 25, 2016 by Kate*

**Math(PleaseHelp!)**

Consider the following conjecture: the sum of two even numbers will be even. A.) give three examples supporting the conjecture. (I gave 2+2=4 4+4=8 10+10=20) B.) Prove the conjecture( this is the part I need help with)
*Wednesday, May 25, 2016 by Heaven*

**math**

20% of 200 is what number? 5% of what number is 8.5? What percent of 400 is 60?
*Wednesday, May 25, 2016 by ana*

**Math**

Which is equivalent to this expression -4(-3x)+5(-7) A. -12x + 35 B. 12x - 35 C. -7x + 12 D. 7x - 12 Which is equivalent to the inequality shown below? X/2 </= -15 A. X >/= 7.5 B X </= 7.5 C X >/= -30 D X </= -30
*Wednesday, May 25, 2016 by Anon*

**Math**

P is a point 2m above the ground and 15m away from a tower. The angle of elevation of the tower from P is 65 degrees. Calculate the height of the tower.
*Wednesday, May 25, 2016 by Angles of elevation*

**Math**

Consider the following conjecture: the sum of two even numbers will be even. A.) Prove the conjecture
*Wednesday, May 25, 2016 by Heaven*

**Math**

It was observed that the shadow of a vertical pole of 6 meters longer when the angle of elevation of the sun was 30° than when it was 60°.By means of a sketched diagram,calculate,correct to two decimal places,the height of the pole.
*Wednesday, May 25, 2016 by Evans*

**math plz help my last chance to do this homework**

a) write an expression in simplest form for the perimeter of each triangle. b)write another expression in simplest form that shows the difference between the perimeter of the larger triangle and the perimeter of the smaller triangle.
*Wednesday, May 25, 2016 by sarah*

**Math**

What is the equation of direct variation given that y is 16 and x is 2?
*Wednesday, May 25, 2016 by Dsimmons*

**math-need sir-steve badly asap**

show that L{f(t)}=f(s) then L{e^(kt)}.f{(t)}=f(s-k) where k=costant L=laplace transformation
*Wednesday, May 25, 2016 by dam*

**Math**

There is an expression some people use that says, “What you put into it is what you get out of it.” People might use this expression to describe your skills at a sport or activity and how that relates to the amount of time and effort you spend practicing that ...
*Wednesday, May 25, 2016 by Princess*

**Math**

Of 43 plays attributed to a playwright 16 are comedies, 15 are tragedies, 12 are histories. If one play is selected random find the odds against selecting a history?
*Wednesday, May 25, 2016 by Angela*

**Math**

3. 2x^2+6x-7x+8-3x^2+1 A. 2x^2+x+9 B. -2x^2-x-9 C. -x^2-x+9 D. x^2+9 4. What are the coefficents in the polynomial 4x^2+3x-3 A. 4,-3,-3 B. 4,3 C. 4,3,3 D. -4,-3 6. (7x^2-x-2)-(6x^3+3) A. 6x^3-+7x^2-x-5 B. -6x^3+7x^2-x+1 C. -x^3-x-5 D. x^2-x+1 7. Suppose you earn 6t-2 dollars ...
*Wednesday, May 25, 2016 by Gazelle*

**Math**

Find slope of the tangent like when x=1 and y=12
*Wednesday, May 25, 2016 by Lilly*

**math**

constract a triangle whose perimeter is 12.5cm and base angles are 60degree and 80degree?
*Wednesday, May 25, 2016 by anzar*

**math**

A water pitcher contains 2323 gallon of water. You add 5757 gallon of water to the pitcher. How much water does the pitcher contain? Write the answer in simplest form.
*Wednesday, May 25, 2016 by yuo*

**Math Help!**

I ned help in Unit 4 Lesson 12 Graphing in the Coordinate Plane Unit Test. I am from connections academy in 7th grade Semester 2! I NEED HELP ASAP
*Wednesday, May 25, 2016 by IceLady900*

**Math/ ratios/ Fractions/ Singapore Math**

Holly and Ross had a total of $60. After holly spent 1/4 of her money and Ross spent $5, the ratio of Holly's money became 1:2. How much more money did Ross have at the beginning?
*Wednesday, May 25, 2016 by Catania *

**Math/ more ratios**

Sam, Jimmy, And Andre shared a number of pennies in the ratio 6:5:7. Sam and Andre received a total of 754 pennies. How many more pennies did Jimmy receive than Andre? This doesn't make sense!! Please help. I hate ratios so much but if someone could help me understand this...
*Wednesday, May 25, 2016 by Catania *

**math**

a box contains 3 red,2 blue,and 1 yellow marble. john picks a marble, does not put it replace it, then his brother tom picks a marble make a probability tree for the outcomes
*Wednesday, May 25, 2016 by shalomi*

**Math**

A lecture hall has 108 chairs arranged in rows with the same number of chairs in each row. You eliminate three rows by adding six chairs to each of the other rows. How many rows are there now ? How many chairs are in each row ?
*Wednesday, May 25, 2016 by Lim*

**math**

Sandra has some money she spends 2/7 of it on a book & she spends 2/5 of the remaining money on a bag Sandra has $15 left how much did she have to start
*Wednesday, May 25, 2016 by olivia*

**Math**

the larger of two numbers is three times the smaller number, and their difference id 34. find the two numbers.
*Wednesday, May 25, 2016 by mike*

**math**

fatima bought 1200 eggs at rs.16 a dozen. At what price per hundred must she sell the eggs so as to earn a profit of 15%. plz its urgent very very urgent try to solve soon.....
*Wednesday, May 25, 2016 by jeo*

**math**

fatima bought 1200 eggs at rs.16 a dozen. At what price per hundred must she sell the eggs so as to earn a profit of 15%. /////****urgent****////
*Wednesday, May 25, 2016 by sad*

**math**

when 2 is added to both the numerator and denominator, of a positive fraction, the fraction thus obtained is 3/5. If the denominator is 6 more than the numerator,what is the original value of the denominator?
*Wednesday, May 25, 2016 by Anonymous*

**math**

If 35% of people surveyed prefer orange to apples.Out of 475 people surveyed how many can be predicted to prefer orange
*Tuesday, May 24, 2016 by jonathan*

**Math-Calc**

Water is leaking out of an inverted conical tank at a rate of 14000.0 cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height 8 meters and the diameter at the top is 6.5 meters. If the water level is rising at...
*Tuesday, May 24, 2016 by Joey*

**Calc-Math**

y^2+xy-3x=-5 dy/dt=-4 x=3 y=1 find dx/dt. i tried doing 2y(dy/dt)+ydx/dt-3=0 but i am not getting the right answer. Please tell me where i am going wrong.
*Tuesday, May 24, 2016 by Brittney*

**Math**

A rock falls straight down from a height of 10 m. How long will it take the rock to hit the ground?
*Tuesday, May 24, 2016 by Chloe*

**Math**

Scary guy is going to use 22/7 to find the exact circumference. He is wrong. Why?
*Tuesday, May 24, 2016 by Miracle*

**Math**

A 20 m vertical telephone pole is standing on a 15 degree slope. One guy wire is attached 30 m up the slope and another guy wire is attached 30 m down the slope. What is the length of the guy wire attached down the slope? I don't understand the question or what the diagram...
*Tuesday, May 24, 2016 by Emily J*