Thursday

November 26, 2015
**math**

hi
*Thursday, November 26, 2015 by Taylor swift*

**math**

a rectangular yard is 36.7 meters long
*Thursday, November 26, 2015 by Perimeter*

**Math**

A thin plastic band 50 cm long is used to tie seven plastic pipes together. What is the radius of the pipe? The shape is a hexagon but not vertices but curved. My solution was , you get an eqilateral triangle with side 3 r 3 r = 50/6 r = 50/6/3 = 2.73 But the text book answer ...
*Thursday, November 26, 2015 by Manav*

**Math**

The sum of two acute angles in a right triangle is 90 degrees. Find the acute angles on the right triangel wherein twice the first is 40 degrees more than thrice the second
*Thursday, November 26, 2015 by Rin*

**Math**

The length of the rectangle 5cm more than twice the width.The perimeter is 70.What is the area?
*Thursday, November 26, 2015 by Rin*

**Math**

What is the circumference of d=2.1cm using 22/7
*Thursday, November 26, 2015 by Mark*

**math**

the measure of two supplementary angles have the sum of their measurements is equal to 180 degrees.
*Thursday, November 26, 2015 by Anonymous*

**MATH**

Give the equivalent linear function in standard form: (ax + by = c): a.x=9-3y/-2 b.y=-4x+5/3
*Thursday, November 26, 2015 by Camz*

**math **

Bill swam 4 kilometers against the current in the same amount of time it took him to swim 12 kilometers with the current. The rate of the current was 2 kilometers per hour. How fast would Bill swim if there were no current?
*Wednesday, November 25, 2015 by mik*

**math**

32 men can do a piece of work in 18 days. In how many days will 72 men do it? For 30 buffaloes, the fodder in a certain stock is sufficient for 8 days. For how many buffaloes the fodder is sufficient for 12 days? Pls help me
*Wednesday, November 25, 2015 by jyoti*

**math**

in a class there are 28 boys and 14 girls.what fraction of the pupils are girls.
*Wednesday, November 25, 2015 by Anonymous*

**Math**

The mean for Eric's class is $148. The mean for Natalia's class is $152. Natalia's sales total $150. If Natalia moves to Eric's class, the mean for each class increases. Explain why.
*Wednesday, November 25, 2015 by Riwa*

**Math**

A box containing 5 red balls and 3 green balls weighs 43 g. When the box contains 3 red balls and 5 red balls it weighs 37g. When it contains one ball of each it weighs 19g. What is the mass of the box and of each ball.
*Wednesday, November 25, 2015 by Zeisha Khan*

**Algebra**

Mr. Wright has a class of 15 students. He can spend $23 on each student to buy math supplies for the year. He first buys all of his students calculators, which costs a total of $69.45. After buying the calculators, how much does he have left to spend on each student?
*Wednesday, November 25, 2015 by Caleb*

**math**

Use the rated acute angle to state an equivalent expression sin 350
*Wednesday, November 25, 2015 by mila*

**Math **

Part A: Max rented a motorbike at $465 for 5 days. If he rents the same motorbike for a week, he has to pay a total rent of $625. Write an equation in the standard form to represent the total rent (y) that Max has to pay for renting the motorbike for x days. Part B: Write the ...
*Wednesday, November 25, 2015 by Karen*

**math**

The cost of producing x units of balloons is given by C(x) =140 + 0.125x + 0.0005x^2. If the revenue function is determined by R(x) = 3x, maximum profit is:
*Wednesday, November 25, 2015 by almas*

**math**

Maximum or minimum values of the function f(x) = (1 – x)^2 e^x is: i need solution (a) Minimum value at x = –1; maximum value x = 1 (b) Minimum value at x = 1; maximum value x = –2 (c) Minimum value at x = 1; maximum value x = –1 (d) None of these
*Wednesday, November 25, 2015 by asad*

**math**

The total cost C(x) of a firm is C(x) = 0.0005x^3 – 0.7x^2 – 30x + 3,000, where x is the output. The value of x; for which MVC = AVC is: (where VC denotes the variable cost, MVC denotes marginal variable cost and AVC denotes average variable cost
*Wednesday, November 25, 2015 by moon*

**math**

A company determines that the marginal cost of producing x units of a particular commodity during a one-day operation is 16x – 1,591, where the production cost is in rupees. The selling price of a commodity is fixed at Rs.9 per unit and the fixed cost is Rs.1,800 per day...
*Wednesday, November 25, 2015 by zaib ali*

**math**

A Company has introduced a new product whose annual demand will depend on price charged. The demand of the product is represented by the function q = 100,000 – 200p, (where p = price and q = quantity demanded annually). Studies indicate that total cost of producing q unit...
*Wednesday, November 25, 2015 by Haroon Gondal*

**Math **

The table below represents the velocity of a car as a function of time: Time (hour) x Velocity (miles/hours) y 0 50 1 52 2 54 3 56 Part A: What is the y-intercept of the function, and what does this tell you about the car? (4 points) Part B: Calculate the average rate of ...
*Wednesday, November 25, 2015 by Kyle *

**math**

Write an equation of the line that passes through each pair of points (0,0) and (7,7)
*Wednesday, November 25, 2015 by Cristal*

**Math 250**

Locating a car from the 102nd floor observation deck of the empire state building, an observer spots his car at an angle of depression of 5 degrees. if the observation deck is 1250 feet high, how far is his car from the building?
*Wednesday, November 25, 2015 by Eseta *

**math**

Mary works in a factory that produces 1,000 telephones each day. When 30 telephones were sampled, it was found that 9 were defective. Estimate how many telephones are defective each day.
*Wednesday, November 25, 2015 by Anonymous*

**math/ pre algebra**

Lydia rode 243 miles in a three day bike trip. On the first day, Lydia rode 67 miles. On the second day, she rode 92 miles. How many miles per hour did she average on the third day if she rode for 7 hours?
*Wednesday, November 25, 2015 by neftali *

**math**

Indicate the correct answer for the function. If (x)= x^3 - 3x^2 + 3x + 7, then f(x) is: a) Maximum b) Minimum c) Neither maximum or minimum d) not possible
*Wednesday, November 25, 2015 by Ahmad Faraz*

**math**

32 men can do a piece of work in 18 days. In how many days will 72 men do it? For 30 buffaloes, the fodder in a certain stock is sufficient for 8 days. For how many buffaloes the fodder is sufficient for 12 days? Pls help me
*Wednesday, November 25, 2015 by jyoti*

**Math**

True or false: If a is any positive real number, the graph of y=a^x will go through the point (0,1). True or false: x^3+2x^2 is an exponential equation because it contains exponents. I got true for both of them is that right?
*Wednesday, November 25, 2015 by Sam*

**Math**

I am the product of 135 and decreased by 500. who am I?
*Wednesday, November 25, 2015 by marcus*

**math**

Air is pumped into a spherical balloon at the rate of 20cm^3/s^-1.find the rate of change of radius of the balloon when the radius is 6cm
*Wednesday, November 25, 2015 by charles*

**math**

Jade's age now is the same as Timmy's five years hence. Timmy's age six years ago was half Jade's age now. Find the present age of each.
*Wednesday, November 25, 2015 by Nyx*

**math**

seven years ago, Mary was 6 times as old as Cora, In 1 year, she will be only twice as old as Cora. Find their present ages
*Wednesday, November 25, 2015 by Nyx*

**math**

A company produces x units of output at a total cost of 1/3 x^3 – 18x^2 + 160x. Output at which average cost is equal to marginal cost is:
*Wednesday, November 25, 2015 by honey*

**math**

15/box is a fraction that lies between 1/7 and 1/8. what is the missing whole number in the box?
*Wednesday, November 25, 2015 by kima*

**math**

The marginal cost of production (in Rs) is 3 + x/3000 + e^(-0.03x), where x denotes the number of units. The cost of producing 100th unit is:
*Wednesday, November 25, 2015 by asad*

**math**

An airplane can fly 625 miles with the wind in the same amount of time as it can fly 425 miles against the wind. If the wind speed is 50 mph, find the speed of the plane in still air. (Round your answer to the nearest whole number.)
*Tuesday, November 24, 2015 by jacob*

**Math**

Please help me!!! The table below represents the velocity of a car as a function of time: time Velocity seconds (m/s) x f (x) 15 45 22 66 29 87 36 108 The average rate of change of the function between x = 15 to x = 29 is __________m/s2 and represents the car's acceleration
*Tuesday, November 24, 2015 by Harper*

**math**

what is 3 degrees colder than -2
*Tuesday, November 24, 2015 by Anonymous*

**MATH HELP**

If the pattern rule is x2 +6, imagine what the trend line for this pattern would look like (on a graph of course). What pattern rule would have a trend line at the same vertical intercept (y-intercept) but has a different steepness? Explain your thinking. PLEASE HELP ME.
*Tuesday, November 24, 2015 by TOO FABULOUS FOR YOU*

**math**

Why would you make one of the addend a ten number when solving an addition problem
*Tuesday, November 24, 2015 by jayden*

**math**

Determine whether the sequence is a Fibonacci-type sequence. If it is, determine the next two terms of the sequence. -4, 5, 1, -3, -2
*Tuesday, November 24, 2015 by crystal*

**MATH HELP**

1. Which ratios form a proportion? Use equivalent ratios to test each pair. A. 4/9, 2/3 B. 6/15, 9/12 C. 12/16, 15/20 D. 18/ 20, 24/30 2. Which ratio forms a proportion with 20/30? Use equivalent ratios to test each ratio. A. 16/24 B. 10/20 C. 17/51 D. 16/60 3. Which ratios ...
*Tuesday, November 24, 2015 by goldensparklegirl222*

**Math**

Evalute "the length of a ractangle is twice its width. The perimeter of the ractangle is 126.
*Tuesday, November 24, 2015 by Helman*

**Math**

Which set represents the range of the function shown? {(8, 2), (6, 5), (4, 7), (11, −2)} A.{-2,2,5,7} B.{4,6,8,11} C.{(2,8),(5,6),(7,4),(-2,11)} D.{-2,2,4,5,6,7,8,11}
*Tuesday, November 24, 2015 by June*

**math**

A picture is 17 inches long and 13 inches wide. It is 2-inch wide frame. What is the area of the frame?
*Tuesday, November 24, 2015 by Celeste Gordon *

**math**

14 different airlines.Each airline schedules 45 departing flight each day.How many flights depart from the airport in one day
*Tuesday, November 24, 2015 by Kailua panel *

**math**

Can I get one dice
*Tuesday, November 24, 2015 by Yenifer *

**Math**

An advertising agency conducted a survey and found that the number of units sold, N, is related to the amount a spent on advertising (in dollars) by the following formula: N = 1,600 + 300 ln a (a ≥ 1). How much needs to be spent (to the nearest hundred dollars) to sell 4...
*Tuesday, November 24, 2015 by Melissa*

**Math **

343 502 in scientific notation
*Tuesday, November 24, 2015 by Aleo*

**math**

Given that f(x) = 2x − 5, find the value of x that makes f(x) = 15 A.5 B.10 C.20 D.25
*Tuesday, November 24, 2015 by June*

**math**

Michael estimated his mass as 8 kilograms. Is his estimate reasonable? Justify your answer. Please help me thanks.
*Tuesday, November 24, 2015 by Mandy*

**math**

The label on a can of lemonade gives the volume as 12 fl oz, or 355 mL. Verify that these two measurements are nearly equivalent. Please help me with this question.
*Tuesday, November 24, 2015 by Mandy*

**math**

If x, (3x+5) and (7x+4) form the first three terms of an A.P, 1.Find X 2. Find the 9th term
*Tuesday, November 24, 2015 by Prof*

**Math**

How do I determine which of theses triangles are right triangles or not? I am given a table with: Traingle | Side 1| Side 2| Side 3| Q |6 6 30 R |6 4 10 S |5 4 41 T |5 4 3 I Know the equation a^2+b^2=c^2, and have applied it to this, but cannot get an answer…Help me please.
*Tuesday, November 24, 2015 by Not Telling*

**Math**

Substitute numbers for the letters to make the equation true. Same letter has the same number. Different letters have different numbers. x + x + y = 20 y + a - y = 9 y + x = 13
*Tuesday, November 24, 2015 by Rosie*

**Math**

Liwanag sold 37 tickets to Manila Zoo. Adult tickets cost Php 3.50 and child tickets cost Php 1.25. She collected 73.25 from the sales of the tickets. How many of each kind were sold?
*Tuesday, November 24, 2015 by Rosie*

**Math**

Y=5sin(3.14(x-3.14/4))
*Tuesday, November 24, 2015 by Noah*

**Math**

Six years ago, Jim was four times as old as Fe. In four years, he would be twice as old as Fe. How old are they now?
*Tuesday, November 24, 2015 by Rosie*

**MATH HELP PLZ MS> SUE OR SOME ONE!!!!**

1. Garret is 64 inches tall. How many centimeters tall is he? Round your answer to the nearest tenth of a centimeter. 1 in. = 2.54 cm A. 25. 2 cm B. 162.6 cm C. 156.8 cm D. 86.4 cm 2. A jug of milk holds 4 quarts. How many liter of milk does the jug hold? Round your answer to ...
*Tuesday, November 24, 2015 by goldensparklegirl222*

**Math**

Subtract six and one-half minus four and seven-tenths. Justify your steps.
*Tuesday, November 24, 2015 by Noemie*

**Math**

What is 3x+3x=
*Tuesday, November 24, 2015 by Robel*

**math**

The marginal cost of production (in Rs) is 3+x/3000+e^-0.003x,where x denotes the number of units. The cost of producing 100th unit is:
*Tuesday, November 24, 2015 by asad*

**math**

The marginal cost of production (in Rs.) is x .e x 03 0 3000 3 , where x denotes the number of units. The cost of producing 100th unit is:
*Tuesday, November 24, 2015 by asad*

**math**

4. Which equation represents a proportional relationship? a) y=1/2x b) y=2x-2 c) y=x+1 d) y=3x+3 5. Which points are part of the graph for the previous question's equation showing a proportional relationship? this is a select all that apply a= (0,0) b= (2,1) c= (1,2) d= (1...
*Tuesday, November 24, 2015 by Abby*

**math**

the angles of elevation of the top of a house from the bottom of a tower 160m high is 26° from the top of a tower the angle of elevation is 24°. what is the height of the house if the tower and the house are 50m apart?
*Tuesday, November 24, 2015 by Anonymous*

**math**

the angles of elevation of the top of a house from the bottom of a tower 160m high is 26° from the top of a tower the angle of elevation is 24°. what is the height of the house if the tower and the house are 50m apart?
*Tuesday, November 24, 2015 by lawal Idris*

**math**

the number of pat's roses to the total number of pat's flowers. a)76:31 b)76:107 c)31:107 d)31:76
*Tuesday, November 24, 2015 by may*

**Math algebra**

The radiator in a car is filled with a solution of 60% antifreeze and 40% water. The manufacturer of the the antifreeze suggests that, for summer diving, optimal cooling of the engine is obtained with only 50% antifreeze. If the capacity of the radiator is 3.6 liters, how much...
*Tuesday, November 24, 2015 by Shane*

**Math**

The radiator in a car is filled with a solution of 60% antifreeze and 40% water. The manufacturer of the the antifreeze suggests that, for summer diving, optimal cooling of the engine is obtained with only 50% antifreeze. If the capacity of the radiator is 3.6 liters, how much...
*Tuesday, November 24, 2015 by Shane*

**Math**

Two cars leave the same town and travel in opposite directions. At the end of 8 hours, the cars are 896 miles apart. Find the rate of each car if the rate of one car is 4 mi/hr more than the rate of the other.
*Tuesday, November 24, 2015 by Shane*

**Math**

Gab and Van can mow the lawn in 40 minutes if they work together. If Gab works twice as fast as Van, how long does it take Gab to mow the lawn alone ?
*Tuesday, November 24, 2015 by Shane*

**Math**

A fraction has a value 2/3. If 4 is added to the numerator and the denominator is decreased by 2, the resulting fractions have the value 6/7. What is the original fraction? (Let x be the numerator and y be the denominator)
*Tuesday, November 24, 2015 by Lex*

**Math,Mensuration**

A cylindrical container closed at both ends,has a radius of 3.5cm and a height of 8cm.calculate the total surface area of the container and volume of the container
*Tuesday, November 24, 2015 by Moses*

**math**

The perimeter of the rectangle is 56m the width is 4m less than the length. Find the length and the width of the triangle.
*Tuesday, November 24, 2015 by anna*

**math**

the base of an isosceles triangle is half as long as side of a square.Each of the legs of triangle is twice as long as a side of the square.How long is each side of the triangle if the sum of the perimeters is 34 m.
*Tuesday, November 24, 2015 by patrick*

**math**

Dear sirs could please do it step by step(clarify) The derivative of x^x^x^x^x^x^x^x... as the power increases to infinitive
*Tuesday, November 24, 2015 by YAEKOB*

**Math**

What is the next two numbers in 8, -24, 72, -216
*Tuesday, November 24, 2015 by Aren Cuellar*

**math**

A survey team is trying to estimate the height of a mountain above a level plain. From one point on the plain, they observe that the angle of elevation to the top of the mountain is 27∘. From a point 1000 feet closer to the mountain along the plain, they find that the ...
*Tuesday, November 24, 2015 by Anonymous*

**math**

It took 1 1/3 cans of paint to paint 2/5 of a room. At that rate, how many cans of paint will it take to paint the whole room?
*Tuesday, November 24, 2015 by Shortie*

**math (check answers)**

Evaluate the expressions when x = 1/2 and y = -3. 1. -4xy -4 * .5 * -3 = 6 2. 6x - 3y 6(.5) - 3(-3) 3. -5y + 8x + 1 -5(-3) + 8(.5) + 1 = 20 4. -x^2 - y + 2 -0.5^2 - (-3) + 2 = 4.75 5. 2x + 4 (x + .5) + 7 2(.5) + 4 (-3 + .5) + 7 = -2 6. 2(4x - 1)^2 - 3 2(4(.5) - 1)^2 - 3 = -1
*Tuesday, November 24, 2015 by teaopi*

**math**

Calculate the standard deviation of the data shown, to two decimal places x 14 3.1 9.1 18.4 28 25.8 8 16.2
*Monday, November 23, 2015 by vicke*

**math**

Find the first order partial derivatives. z=ln(xy-sqrt(x^2-y^2)
*Monday, November 23, 2015 by jay*

**math**

six years ago, jim was four times as old as Fe. In four years, he would be twice as old as fe.How old are they now?
*Monday, November 23, 2015 by peter*

**math**

If a recipe calls for 2/3 cups of sugar and I only want 1/3 of the recipe; how much sugar will I use?
*Monday, November 23, 2015 by Shortie*

**Math**

From 102nd floorˏ an observer spot his car at an angle depression of 5 degree.If the observer is 1250 feet high; how far is his car from him?
*Monday, November 23, 2015 by Laila*

**finite math**

what happens to the value of y as the value of x changes
*Monday, November 23, 2015 by Anonymous*

**math**

Using taylor series solve lim x→0 ((sin^-1 6x)-(sin 6x))/((tan^-1)(6x)-(tan 6x) I dont know how to start this problem
*Monday, November 23, 2015 by johnson*

**math**

write 2.18 as a mixed number in simplest form
*Monday, November 23, 2015 by john*

**Math**

If the number in the numerator of a unit rate is 1, what does this indicate about the equivalent unit rates? give an example
*Monday, November 23, 2015 by Wendy*

**Math(Algebra)**

Janine has started an exercise program. As part of her exercise program, she will walk along trails. Janine walks at an average speed of 1 mile in 15 minutes. What is Janine’s average speed in miles per hour? Show or explain how you got your answer. Janine plans to walk ...
*Monday, November 23, 2015 by Hadlee*

**TECH MATH**

A factory creates wooden beads used for various arts and crafts projects. One particular type of bead is in the shape of a cube. Each side of the bead is 0.25 inches long. A cylindrical hole with diameter of 0.12 inches is cut through the bead so that string can be threaded ...
*Monday, November 23, 2015 by WILL*

**math**

if I walk 2.5 miles in 1.25 hours, how long does it take to walk .5 miles?
*Monday, November 23, 2015 by joe*

**math**

Solv 9logexponent 12,base 3
*Monday, November 23, 2015 by debiru*

**MATH **

6. It takes Pam 45 minutes to drive to work and 60 minutes to drive home from work. Write the ratio of the time Pam spends driving home from work to the time she spends driving to work in three different ways. 7. Ben needs to buy orange juice. He can buy 64 fl oz. at the ...
*Monday, November 23, 2015 by goldensparklegirl222*

**Math**

Wendell is making punch for a party. the recipe he is using says to mix 4 cups pineapple juice, 8 cups orange juice, and 12 cups lemon-lime soda in order to make 18 servings of punch. a. How many cups of punch does the recipe make? b. if Wendell makes 108 cups of punch, how ...
*Monday, November 23, 2015 by Wendy*

**Math**

Solve the problem! A recipe calls for 2/3 cup of sugar. You want to make 1/3 of the recipe. How much sugar should you use?
*Monday, November 23, 2015 by Shortie*

**Math**

Use the diagram to show that x square- 2xr+w square =0 (use diagram, and Pythagorean theorem to get this equation)
*Monday, November 23, 2015 by Patrisia*

**math**

I need to predict a certain number of pens in the bag how do i do this You have a bag of 100 pens you choose 7 green pens and 13 purple pens predict the number of purple pens in the bag.
*Monday, November 23, 2015 by stephanie *

**Math**

I have two more questions :)) If 1/3 is equivalent to 33 1/3%, what percent is equivalent to 2/3? A: 33 2/3% B: 150% C: 66 2/3%**** D: 65% Which proportion can be used to solve the following percent problem? What is 50% of 70? I came up with x/50 = 70/100
*Monday, November 23, 2015 by Cami*