Saturday

July 26, 2014

July 26, 2014

Total # Posts: 645

**Algebra 2**

Find the exact value of cos 315 degrees. answers: 3/2, -1/2,2/2, -2/2

**Math**

dartboard is 16 inches bulls eye 6 inches

**Math**

Jeff has 12 coins that have a total value of $2.25.If there are only quarters and dimes, how many of each kinds are there?

**Math**

A patio was to be laid in a design with one tile in the first row,two tiles in the second row,three tiles in the third row, and so on. Mr Tong had 60 tiles to use. How tiles should be placed in the bottom row to use the most tiles?

**Math**

The book shelly is reading has 235pages. She has already read 110 pages. If she reads 25 pages a day from now on, how many more days will it take her to complete the book?

**Algebra**

A scientist wants to research the potential spread of germs by contact. She knows that the number of possible handshakes within a group of n people is given by the equation N=1/2(n^2-n). Everyone at a party shook hands. There were 253 handshakes in all. How many people attende...

**Algebra**

$5400 is invested, part of it at 10%, and part of it at6%. For a certain year, the total yield is $444.00. How much was invested at each rate?

**Algebra**

$6300 is invested, part of it at 11% and part of it at 8%. For a certain year, the total yield is $597.00. How much was invested at each rate?

**Algebra**

The accompanying bar graph shows the milk fat percentages in three dairy products. A=whole milk @4%. B= milk for cream cheese @8%, and C= cream @30%. How many pounds each of whole milk and cream should be mixed to form 200 lb of milk for cream cheese? How many pounds of whole ...

**Algebra**

$6300 is invested, part of it at 11% and part of it at 8%. For a certain year, the total yield is $597.00. How much was invested at each rate?

**Algebra**

One canned juice drink is 20% orange juice! another is 5% orange juice. How many liters of each should be mixed together in order to get 15L that is 16% orange juice?

**Math**

A disc jockey must play 14commercial spots during 1hour of radio show. Each commercial is either 30 seconds or 60 seconds long. If the total commercial time during 1hour is 11 minutes, how many 30 second commercials were played that hour? How many 60 second commercials?

**trig**

Use standard identities to express sin(2θ+π/3) in terms of sinθ and cosθ

**math**

As a fundraiser a school club is sellin posters. The printer charges a $24 set up fee plus $o.20 for each poster. Then the cost y in dollars to print is given by the linear equation y=0.20x+24 A. The printing of 50 posters cost? The printing cost of 100 posters cost? B. Find t...

**math**

how do i build a rectangler pen using 40 meters

**Math**

Darla is building a desk. To make sure she had made a square corner, she measures 7ft from the corner along one edge, and 8ft from the corner of the other edge. How long should the diagonal be between those two points if the corner is a right angle?

**Math**

What is y+3-4=5, with the sqrt.(...) sign over y+3

**Algebra**

What is the sqrt(...) of y+3-4=5, where the sqrt is over y+3.

**Algebra**

Steve, no the sqrt(...) is over the y+3 not over the 5

**Algebra**

I'm not sure how to write a radical sign on the computer but the problem is y+3-4=5 inside a radical sign.

**Algebra**

The formula r =2 sqrt.5L can be used to approximate the speed r, in miles per hour, of a car that has left skid marks of length L, in feet. How far will a car skid at 60 mph?

**math**

Solve the trigonometric equation 3sinθ=1.2 for 0≤θ≤4π

**physic**

A stationary 2.0 kg object is located on a table near the surface of the earth. The coefficient static friction between the surface is .80 and the coefficient of the kinetic friction is 0.65. A horizontal force of 5N is applied to the object. Determine the force of friction. D...

**physic**

A stationary 2.0 kg object is located on a table near the surface of the earth. The coefficient static friction between the surface is .80 and the coefficient of the kinetic friction is 0.65. A horizontal force of 5N is applied to the object. Determine the force of friction. ...

**math**

Graph the function f(x)=1/3-x (x≠3)

**math**

If f(x)=2x-1 and g(x)=x^2-x find : 1. g(g(x)) 2. g(f(x)) 3. f(g(x)) 4. f(f(x))

**Math**

An architect has allocated a rectangular space of 465ft^2 for square dining room and a 16ft wide kitchen. Find both the width of the square dining room and the length of the entire rectangular space.

**Math**

The number of tickets sold each day for an upcoming performance of Handels Messiah is given by N(x)=-0.4x^2+11.2x+13, where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold that day?

**Math**

The base of a triangle is 6cm greater than the height. The area is 20cm^2. Find the height and the length of the base.

**Math**

An architect has allocated a rectanglular space of 646ft^2 for a square dining room and a 15ft wide kitchen. Find both the width of the square dining room and the length of the entire rectangular space.

**Math**

The number of tickets sold each day for an upcoming performance is given by N(x)=-0.3x^2+9x+15, where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold that day?

**Math**

A 15-foot ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on level ground 12 feet from the base of the building. How high up the wall does the ladder reach?

**math**

A 10 foot ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on level ground 8 feet from the base of the building. How high up the wall does the ladder reach.

**math**

the number of tickets sold each day for an upcoming performance is given by N(x)=-0.5x^2+13x+15 where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold that day? Ticket sales peak ___ days after c...

**Math**

An architect has allocated a rectangular space of 264ft^2 for a square dining room and a 10ft wide kitchen. What is both the width of the square dining room and the length of entire space.

**Math**

Could someone please help me solve this radical equation of 2x+7-2=x It's suppose to have the radical sign but I don't know how to put it on here. Thank you

**Math**

Two motorcycles travel toward each other from cities that are about 320km apart at rates of 95km/hr and 65km/hr. They started at the same time . In how many hours will they meet?

**Math**

A train leaves a station and travels north at a speed of 45mph. Four hours later, a second train leaves on a parallel track and travels north at 105 mph. How far from the station will they meet? The trains will meet ________ miles away from the station

**Math**

Give the exact and approximatel solutions to three decimal places. X^2-7x+7=0

**Math**

Solve the following for x X^2+14x+4=0

**Math**

Give exact and approximate solutions to three decimal places. X^2-5x+3=0

**Math**

Give the exact and approximate solutions to three decimal places. X^2-7x+3=0 The exact solutions are x=________ The approximate solutions to 3decimal places are x=___________

**Math**

Find the total profit, the maximum value of the total profit, and the value of x at which it occurs when the revenue is given by R(x)=240x-x^2 and the cost is given by C(x)=5000+8x The total profit, P(x)=-x^2+_______x-5000

**Math**

Find the total profit, the maximum value of the total profit, and the value of x at which it occurs when the revenue is given by R(x)=240x-x^2 and the cost is given by C(x)=5000+8x.

**Math**

The number of tickets sold each day for an up coming performance of Handel,s Messiah is given by N(x)=-0.4x^2+8x+11, where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold that day.

**Math**

An architect has allocated a rectangular space of 589ft^2 for a square dining room and a 12ft wide kitchen. Find both the width of the square dining room and the length of the entire rectangular space. The width of the square dining room is _____ft The length of the entire rec...

**Math**

The length of one leg of a right triangle is 8ft. The length of the hypothenuse is 2feet longer than the other leg. Find the length of the hypothenuse and the other leg. The length of the hypothenuse is _______ ft. The length of the other leg is ___________ft.

**Math**

A triangular traffic island has a base half as long as it's height. The island has an area of 144m^2. Find the base and the height.

**Algebra**

In 1991, the life expectancy of males in a certain country was 67.2 years. In 1995, it was 71.1 years. Let E represent the life expectancy in year t and let t represent the number of years since 1990. The linear function E(t) that fits the data is E(t) =?t + ? (Round to the ne...

**Algebra**

Find an equation of the line having the the given slope and containing the given point. M=4/5,(7,-4) The equation of the line is y=?

**Algebra**

In 1991, the life expectancy of males in a certain country was 70.8 years. In 1995, it was 74.6 years. Let E represent the life expectancy in year t and let t represent the number of years since 1991.. The linear function E(t) that fits the data is E(t)= (Round to the nearest ...

**Algebra**

Find an equation of the line having the given slope and containing the given point. M=4/5,(3,-1) The equation of the line is y=

**Algebra**

Factor the following polynomial. 28x^3+59x^2+13x

**Algebra**

In 1991, the life expectancy of males in a certain country was 72.6 years. In 1996, it was 74.7 years. Let E represent the life expectancy in year t and represent the number of years since 1991. The linear function E(t) that fits that data is, E(t)=

**Algebra**

Find an equation of the line having the given slope and containing the given point. M=6/7, (5,-2) The equation of the line is y =

**Algebra**

Find an equation of the line having the given slope and containing the given point. Express your answer in the form y=b or y=mx+b M=0, (0,-5) The equation of the line is y=

**Math**

In1991,the life expectancy of males in a certain country was 72.6yrs. In 1996, it was 74.4 yrs. let E represent the life expectancy in year t and let t represent the number of years since 1991. The linear function E(t) that fits the data is E(t)=____ t + ________ Round to the ...

**Math**

Find an equationof the line having the given slope and containing the given point. Express your answer in the form y=B or y=mx+b M=0,(0,5) The equation is y=

**algebra**

explain to me why the first coordinate of the y intercept is always 0 please.

**math**

explain to me why the slant of a line with slope 5/3 is steeper than the slant of a line with slope 4/3

**Algebra**

Find a slope if it exists, please. 9x-y=9

**Algebra**

Find an equation of the line having the given slope and containing the given point. M=-8,(5,6)

**Math**

Find the slope, if it exists, of the following line. X=2/15

**Math**

Find the slope, if it exists, of the following line. X=2/15

**Math**

Find the slope, if it exists, of the following line. X=2/15

**Math**

Find an equation of the line having the given slope and containing the point. M=-8,(1,8)

**Math**

Find an equation of the line having the given slope and containing the point. M=-8,(1,8)

**Math **

Still not understanding the way to write the equation of the pair of points. (-2,-3) and (-6,-9) in the form of y=

**Math**

What's an equation containing the given pair of points. Express in the form of x=a, y=b, or y=mx+b. (-5,-5) and (3,3)

**Algebra**

Find an equation of the line that contains the following pair of points. (-2,-3) and (-6,-9)

**Algebra**

Could someone help me with finding an equation of the line containing the given pair of points (3,2) and (9,7)

**Gen 499**

Examine the influences of social connections and technology and civic engagement in academic and professional pursuits.

**Google**

That didn't help

**Google**

Why is google innovative ?

**Math**

An architect has allocated a rectangular space of 666ft^2 for a square dining room and a 19ft wide kitchen. Find the width of the square dining room and the length of the entire rectangular space.

**Math **

A 26ft ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on level ground 24ft from the base of the building. How high up the wall does the ladder reach?

**Math**

The number of tickets sold each day for a performance is given by N(x)=-0.4x^2+8x+14, where x is the number of days since the concert was first announced.when will daily ticket sales peak and how many tickets will be sold that day?

**Math **

A rectangular table is six times as long as it is wide. If the area is 96ft^2, find the length and the width of the table

**Math**

Label the vertex and the intercepts of y=x^2-2x+11. Sketch the graph of the equation

**Math **

Find the vertex of the parabola. Sketch the graph. Y=x^2+2x-3

**Math**

The base of a triangle is 8cm greater than the height . The area is 24cm^2. The height is what and the base is what?

**math**

a 13 ft ladder is placed against a vertical wall of a building, with the bottom of the ladder stand on level ground 5ft from the base of the building. how high up the wall does the ladder reach.

**math**

an architect has allocated a rectangular space of 325ft^2 for a square dining room and a 12ft wide kitchen. find bothy the width of the square dining room and the length of the entire rectangular space.

**Math**

An architect has allocated a rectangular space of 325ft^2 for a square dining room and a 12 ft wide kitchen. Find both the width of the square dining room and the length of the entire rectangular space.

**Math**

A model rocket is launched with an initial velocity of 212ft/sec. It's height h, in feet, after t seconds is given by the formula h=212t-16t^2. After how many seconds will the rocket first reach a height of 592ft?

**math**

a 20-foot ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on level ground 16ft from the base of the building. how high up the wall does the ladder reach?

**math**

north avenue is 36ft wide when it ends at main st. a 45 foot long diagonal crosswal allows pedestrians to cross main st to or from either corner of north ave. determine the width of main st.

**math **

a triangular traffic island has a base half as long as its height. the island has an area of 121m^2. find the base and the height.

**math**

an architect has allocated a rectanguoar space of 324ft^2 for a square dinging room and a 12ft wide kitchen. find both width of the dining room and the length of the entire rectangular space.

**Math**

How would you solve these compound inequalities word problems? 1. The human ear can distinguish sounds between 20Hz and 20,000 Hz, inclusive. 2. For a man to box as a welterweight, he must weigh more than 140 lbs, but at most 147 lbs.

**statistics - conditional probability**

Event A has probability 0.9 of occurring. Event B has 0.2 chance of occurring if, and only if, event A has occurred. What is the overall probability that event B will occur? I'm so confused. This seems so simple, I'm not sure why I can't reason through it. They'...

**statistics - conditional probability**

Event A has probability 0.9 of occurring. Event B has 0.2 chance of occurring if, and only if, event A has occurred. What is the overall probability that event B will occur? I'm so confused. This seems so simple, I'm not sure why I can't reason through it. They'...

**Math**

Use symbols to represent unknowns and variables. Write inequalities to answer questions arising situations. 1. A sales representative is given a choice of two paycheck plans. One choice includes a monthly base pay of $300 plus %10 comission on his sales. The second choice is a...

**Math**

Use symbols to represent unknowns and variables. Write inequalities to answer questions arising from situations. 1. Ten less than a number, x, is greater than 32. 2. A number, n, decreased by 6 is less than or equal to 4. 3. One half of a number, increased by 9, is less than 33.

**Math**

What's the equation of the line containing the given point and perpendicular to the given line. (5,-3);6x+5y=7 Also (4,5);6x+y=4. In the forms of y=mx+b Thank you for your help.

**Math **

Write an equation for the line of the given point and perpendicular to the given line. Please help (5,-4);2x+9y=4

**Math**

Could someone please help me write an equation of the line containing the given point and parallel to the given line. (6,-9)4x-5y=8 Y=?

**Algebra**

Could you please tell me how to graph the inequality on a plane. 4x-3<7x+y with a line under the greater symbol

**Math**

What's the equation of the line containing the given pair of points. (1,4) and (3,5)

**Math**

What's the equation of the line containing the given pair of points. (1,4) and (3,5)

Pages: **1** | 2 | 3 | 4 | 5 | 6 | 7 | Next>>