Wednesday

July 23, 2014

July 23, 2014

Total # Posts: 299

**maths**

A car and a van started from two cities at the same time and travelled towards each other at steady speeds. The car took 4 hours to cover the distance between the two cities and the van took 6 hours. After what amount of time did they pass each other? 4.

**chemistry**

If 5.6 grams of potassium hydroxide is added to enough water to make 950 ml of solution, what is the concentration of the potassium?

**alegbra**

Use a calculator to evaluate an ordinary annuity formula A = m [ 1+ r over n ^nt -1] than rn is under--____________________ r over n for m, r, and t (respectively). Assume monthly payments. (Round your answer to the nearest cent.) $150; 6%; 40 yr A = $

**alegbra**

Find the future value, using the future value formula and a calculator. (Round your answer to the nearest cent.) $990 at 5.5% compounded quarterly for 3 years Find the present value, using the present value formula and a calculator. (Round your answer to the nearest cent.) Ach...

**alegbra**

The learning curves describes the rate at which a person learns certain tasks. If person sets a goal of typing N words per minute (wpm), the length of time t (in days) to achieve this goal is given by a) according to this formula what is the maximum number of words per minute?...

**alegbra**

Write the equations in logarithmic form. 25=(1/5)^2 thanks for the help.

**alegbra**

An artifact was found and tested for its carbon-14 content. If 75% of the original carbon-14 was still present, what is its probable age (to the nearest 100 years)? (Carbon-14 has a half-life of 5,730 years.) thank you

**ALGEBRA**

t = - 6.25 In ( 1 N over 80) according to the formula what is the maximum number of word per minute. Round off to the nearest whole number. Solve N

**ALGEBRA**

the atmosphere pressure P in pounds per square inch (psi) is given by P=14.7e upper o.21a where a is the attitude above sea level in miles. If a city has an atmosphere pressure y 13.29 psi what is its altitude. Recall that one mile = 5,280 feet. Round to the nearest feet

**math trigonometry**

At night, a security camera pans over a parking lot. The camera is on a post at point a which is 53m from point c and 71 m from point b.the distance from B to c is 68m. Calculate the angle through which the camera pans

**math trigonometry**

At night, a security camera pans over a parking lot. The camera is on a post at point a which is 53m from point c and 71 m from point b.the distance from B to c is 68m. Calculate the angle through which the camera pans

**math**

Maya chatted online with all her friends for 2/3 of an hour on saturday and 1/4 of an hour on sunday.During that time period she chatted with Paul for 1/8 of an hour. What fraction of the time Maya spent chatting with her friends online was spent chatting with Paul?

**PHYSICS**

100turns of insulated wire are wraped around a wooden cylindrical core of cross-sectional area 12cm2. The two ends of the wire are connected to a resistor. The total circuit resistance is 13Ω. If an externally applied uniform magnetic field along the core changes from 1.6...

**Physics**

A long, ideal solenoid has a diameter d=12cm and n=1200turns/meter carrying current I=20A. If the current is lowered at 4.33amp/s to zero, what is the magnitude of the induced electric field in V/m at a position 8.2cm from the solenoid's axis

**physics**

A long, ideal solenoid has a diameter d=12cm and n=1200turns/meter carrying current I=20A. If the current is lowered at 4.33amp/s to zero, what is the magnitude of the induced electric field in V/m at a position 2.2cm from the solenoid's axis (so at a point inside the sole...

**physics**

100turns of insulated wire are wraped around a wooden cylindrical core of cross-sectional area 12cm2. The two ends of the wire are connected to a resistor. The total circuit resistance is 13Ω. If an externally applied uniform magnetic field along the core changes from 1.6...

**physics**

A long, ideal solenoid has a diameter d=12cm and n=1200turns/meter carrying current I=20A. If the current is lowered at 4.33amp/s to zero, what is the magnitude of the induced electric field in V/m at a position 8.2cm from the solenoid's axis (so at a point outside the sol...

**physics HELP**

is the radius of the cable or of the axis to the point p?

**Math**

There are boxes without tops. Find the box with the least surface area for a given volume, V. Make a diagram (if you can). Hint: Volume=x^2y Area=x^2+4xy

**math**

The base of the lamp of a triangular prism with an equilateral triangle base . The surface of the stand is to be painted.what is the area that will be painted?Give the answer to the nearest whole number.

**Calculus I**

If x^2+y^2=25, find dy/dt when x=3 and dx/dt= -8.

**Calculus I**

Let A be the area of a circle with radius r that is increasing in size with respect to time. If the rate of change of the area is 8 cm/s, find the rate of change of the radius when the radius is 3 cm.

**Chemistry**

55cm

**Chemistry**

If each balloon is filled with carbon dioxide at 20 deg. C and 1 atmosphere, calculate the mass and the number of moles of carbon dioxide in each balloon at maximum inflation.

**math**

Bianca and yoko work together to mow the lawn suppose yoko mows 5/12 of the lawn and bianca mows 2/5 of the lawn how much of the lawn still needs to be mowed?

**math**

On a sunny day, if a 36-inch yardstick casts a 21-inch shadow,how tall is a building whose shadow is 168 ft ?

**math**

thank you, ms sue, the other question can i do the same way like this x/36 = 168/21 21x = 6048 x = 288

**math**

Oregon is about 400 miles from west to east, and 300 miles from north to south. If a map of Oregon is 15 inches tall ( from north to south), about how wide is the map?

**math**

Space the length of one day on venus is 35 earthdays write a product and an exponent .

**poetry**

The poem is: Canada Day Love Match My mother stalked her future son in law, convinced he was the one for me. Through the crowd at the Forks Market, she kept behind him like a cat ready to pounce. I kept out of his line of sight. Blind to us, he watched other women. Red turban,...

**poetry (Pioneer by Dorothy Livesay)**

8 cannot be D because none of the words rhyme. It also does not ask questions. I will go with A. Does that seem right?

**poetry (Pioneer by Dorothy Livesay)**

Would number 8 be C ? I think 4 would be D because I don't think the pioneer will retire. I'm confused between B and D. Thanks for your help :)

**poetry (Pioneer by Dorothy Livesay)**

I have corrected the answers 1. A 4. A 5. C 7. B Do they seem right now?

**poetry (Pioneer by Dorothy Livesay)**

I have to answer the questions according to this poem, I have answered them but just want someone to look over them to see if they are right. The last one I had trouble with and need help on that one too. The answer that I think it is I have put arrows on them. Help would be a...

**poetry**

The poem is: Canada Day Love Match My mother stalked her future son in law, convinced he was the one for me. Through the crowd at the Forks Market, she kept behind him like a cat ready to pounce. I kept out of his line of sight. Blind to us, he watched other women. Red turban,...

**Finance**

Explain how a firm that has issued a floating-rate bond with a coupon equal to the LIBOR rate can use swaps to convert that bond into a synthetic fixed-rate bond.

**math**

The price of a sweater went up 20% since last year . If last year's price was x, what is this year's price in terms of x?

**math**

please explain how you got 1.2x

**math**

The price of a sweater went up 20% since last year.If last year's price was x what is this year's price in terms of x?

**math**

thank you

**math**

A. John is now 10 years older than Marcus. Three times John's age 5 years from now will be the same as five times Marcus's age 5 years ago. How old is John now? B. In 1 year Kristen will be four times as old as Danielle. Ten years from then Kristen will only be twice a...

**math**

A. A woman was 30 years old when her daughter was born.Her age is now 6 years more than three times her daughter's age. How old will the daughter be in 5 years? B. Lisa is 15 years old and her father is 40. How many years ago was the father six times as old as Lisa? C. Joe...

**math**

A. Brad is 12 years older than Sam . If Brad were 8 years older than he is now. he would be twice as old as Sam. How old is Sam now? B. Barrie is now 2 years older than Krista. In 15 years Barrie's age will be 2 years more than twice Krista's age now. How old will Barr...

**math**

D. ( x + x+1 + x+2 )/3=84

**math**

the number B (?) four consecutive odd integers (X + X+2 + X+4 + X+6 ) /4 = 16 I'm not sure

**math**

A. Four times one odd integer is 14 less than three times the next even integer. Find the integers. B. The average of four consecutive odd integers is 16. Find the largest integer. C. When the sum of three consecutive integers is divided by 9 the result is 7. Find the three in...

**math**

A. One board is one-third the length of another. Six times the sum of the length of the short board and -10 is equal to the length of the longer board decreased by 11 inches. Find the length of the longer board. B. The length of a rectangle is 4 feet more than twice the width....

**math**

A. In triangle, the second angle measures twice the first, and the third angle measures 5 more than the second. If the sum of the angles' measures is 180^0, find the measure of each angle. b. The price of a pack of gum today is 63 cent. This is 3 cent more than three times...

**math**

1. A hotel has 120 rooms. If the number of double room is 8 more than three times the number of single rooms, how many single rooms does the hotel have? 2. A mechanic earns $5 more per hour than his helper. On a six-hour job the two men earn a total of $114. how much does each...

**math**

I have two more question, I hope you can help me. 1. A hotel has 120 rooms. If the number of double room is 8 more than three times the number of single rooms, how many single rooms does the hotel have? 2. A mechanic earns $5 more per hour than his helper. On a six-hour job th...

**math**

thank you for help

**math**

4. The perimeter of a tgriangle is 44 inches. If one side is 5 inches longer than the smallest side and the largest side is 1 inch less than twice the smallest side, how many inches are there in the smallest side?

**math**

1. The sum of the ages of Ed and his father is 59 years. If his father's age is 11 years less than four times Ed's age, how old is Ed? 2. Five less than seven times a certain number is 58.Find the number. 3. The sum of 1/2 a certain number and 1/3 of the same number is...

**physics**

A boat sails 5.0(45 degrees W of N). It then hanges direction and sails 7.0km(45 degrees S of E) where does the boat end up with reference to its starting point.? Please explain steps answer is 2km(45 degrees S of E)

**Business**

In the following statement, a business owner attempts to explain and justify his slow growth in his business. I limit my growth pace and every effort to service my present customers in the manner they deserve. I have some peer pressure to do otherwise by following the advice o...

**math**

1. solve the following inequality to find a range of values for x: -11 < -4-x < -7 2. solve the following inequality to find a range of values for x: -25 < -x < -10

**math**

1. solve the following inequality to find a range of values for x: -11 < -4-x < -7 2. solve the following inequality to find a range of values for x: -25 < -x < -10

**math**

thank you, Dr. Jane Can i ask two more question 1. solve the following inequality to find a range of values for x: -11 < -4-x < -7 2. solve the following inequality to find a range of values for x: -25 < -x < -10

**math**

thank you, Dr. Jane Can i ask two more question 1. solve the following inequality to find a range of values for x: -11 < -4-x < -7 2. solve the following inequality to find a range of values for x: -25 < -x < -10

**math**

1. solve the following inequality to find a range of values for x : -18 < x -7 < -6 2. solve the following inequality to find a range of values for x : -96 < -12x < -12

**math**

1. 19cd , + 6d^2 , + 8 , 19cd 6d^2

**math**

2. -7 , y + 13 , ab^2 + x -7 13

**math**

So, 1. 19cd , + 6d^2 , + 8 , 2. -7 13 is it correct

**math**

my son does'nt understand , me too.

**math**

1. List the terms in the expression below, place a comma between each term. 19cd + 6d^2 + 8 2. List the coefficients in the expression below, place a comma between each coefficient. -7y + 13ab^2 + x

**Statistics**

"number wrong" = 10 - "number right" is a linear transformation that says, "Multiply the list by -1, then add 10." The addition does nothing to the SD, and the multiplication by -1 multiplies the SD by |-1|=1. So there's no change to the SD. I...

**math **

Find the solution x of the following equation : 12X =32.

**math**

I don't understand 3/4 / 5/4 = 3/5 the answer L is 3/5 is it correct

**Calculus**

H(x) = (x^4 - 2x +7)(x^-3 + 2x^-4) H'(x)=

**Calculus**

On what values of x does the graph of f(x) = 2x^3 - 3x^2 + 12x + 87 have a horizontal tangent?

**algebra**

(xy)^1/4(x^2y^2)^1/2 over(x^2y)^3/4

**help? math ?**

1. when z is divided by 8, the remainder is 5. What is the remainder when 4z is divided by 8 ? 2. If n is an integer, which of the following must be odd ? A. 3n-5 B. 3n + 4 C. 4n + 10 D. 4n - 5 E. 5n + 7

**math**

1. when z is divided by 8, the remainder is 5. What is the remainder when 4z is divided by 8 ? 2. If n is an integer, which of the following must be odd ? A. 3n-5 B. 3n + 4 C. 4n + 10 D. 4n - 5 E. 5n + 7

**math**

1. when z is divided by 8, the remainder is 5. What is the remainder when 4z is divided by 8 ? 2. If n is an integer, which of the following must be odd ? A. 3n-5 B. 3n + 4 C. 4n + 10 D. 4n - 5 E. 5n + 7

**math**

1. If x people working together make a total of y dollars after an hour of work. how much money will z people make if they work 4 hours at the same rate per person ? 2.Each of the n members of an organization may invite up to 3 guests to a conference. What is the maximum numbe...

**math**

1. If x people working together make a total of y dollars after an hour of work. how much money will z people make if they work 4 hours at the same rate per person ? 2.Each of the n members of an organization may invite up to 3 guests to a conference. What is the maximum numbe...

**math**

A. Mandy buy a sweater that is on sale for 20% less than the original price, and then she uses a coupon worth an additional 15% off of the sale price. What percentage of the original price has she saved ? B. If the price of a stock increases by 40% and then by an additional 25...

**math**

thank you

**math**

a spinner has four equal parts marked 1-4, another spinner has 3 equal parts colored red, blue and yellow. What are all the possibe outcomes?

**English3**

In “The Turtle” from The Grapes of Wrath, how does the stem of the wild oat seeds use the turtle to carry it to a place where it can grow?

**math**

x=6y/5-8y-3y+9y,what is the value of y in terms of x ?

**math**

1. x=3y-2/4,what is the value of y in terms of x ? 2. x=y^3/3y^2+y/2,what is the value of y in terms of x ?

**math**

steve, i still have two question I don't understand. 1. x=3y-2/4,what is the value of y in terms of x ? 2. x=y^3/3y^2+y/2,what is the value of y in terms of x ?

**math**

steve, i still have two question I don't understand. 1. x=3y-2/4,what is the value of y in terms of x ? 2. x=y^3/3y^2+y/2,what is the value of y in terms of x ?

**math**

thank you, steve

**math**

thank you, steve

**math**

I want to know how the way to do that, then i can teach my children

**math**

my children doesn't know how to do that, i don't know how to teach him

**math**

I don't know how to do that, steve

**math**

If x=5y+2-3(y+2),what is the value of y in terms of x ?

**math**

If x=y3-80,what is the value of y in terms of x ?

**math**

If x=y+|-4|-|-5|+6,what is the value of y in terms of x?

**stats**

if i have a sample size of 200, 16% are poor, what is my mean and standard deviation. my answers do not make any sense

**math**

thank you, I post a question by mistake

**math**

Each rabbit constume needs one and one half yards of white fur fabric. a yard of blue striped fabric, and a quarter of a yard of pink felt for the ears. If Gail has ten yards of white fur fabric, seven yards of blue striped fabric, and one and three quarter yards of pink felt....

**math**

thank you , Ms. Sue

**math**

one more question 6. 68% of 250 it mean 250 x 70% = 180

**math**

thank you , Ms.Sue

**math**

2. 100 x 50% = 50

**math**

2. 50 x 100% = 50 3. 500 x 20% = 100 4. 100 x 70% = 70 5. 80 x 70% = 60