Friday

December 2, 2016
**algebra **

How do I graph x<2y and x+y<0

*Thursday, September 25, 2014 by Janet*

**Algebra 2**

Am I correct? The radius of a cylinder is 3x – 2 cm. The height of the cylinder is x + 3 cm. What is the surface area of the cylinder? Use the formula A = 2pi r2 + 2 pi rh. 2spi (3x2 + 10x – 8) 2 pi (12x2 + 7x-2) 2 pi (12x2 -2x +13) my answer 2 pi (12x2 -5x -2)

*Thursday, September 25, 2014 by Sandra*

**Algebra (Quadratics)**

The height y (in feet) of a baseball thrown by a child is y = -1/10 x^2 + 3x + 6 where x is the horizontal distance (in feet) from where the ball was thrown. Will the ball fly over the head of another child 30 feet away trying to catch the ball? (Assume that the child who is ...

*Thursday, September 25, 2014 by Ruth*

**ALGEBRA 2**

'OR" COMPOUND INEQALITY 1-X>_-3 OR 5X - 1 > 19

*Thursday, September 25, 2014 by Argenia *

**ALGEBRA 2**

-1<_3 + 2X <11

*Thursday, September 25, 2014 by Argenia *

**Algebra, Please Help!**

How do i find the radius of a circle with the center (16/11,79/11)? Thanks

*Wednesday, September 24, 2014 by Bella*

**Algebra**

1.How do I find the center of a circle using the points (2,8) (-4,6) (1,-1) ? 2. The Radius of the circle? 3. Equation of circle THANKS!

*Wednesday, September 24, 2014 by Please Help!*

**algebra**

midpoint (-5,-15) endpoint (-13,-8). find the other endpoint

*Wednesday, September 24, 2014 by Ernie*

**Algebra Help**

How do I find the center of a circle using the points (2,8) (-4,6) (1,-1) I also found the Equation of the perpendicular bisector of the line between the first and second point which was y=(3/2)x + 5 And the Equation of the perpendicular bisector of the line between the second...

*Wednesday, September 24, 2014 by Bri*

**Algebra II Honors**

There are some interesting special cases in which the graphs turn out to be parallel, perpendicular, or coincident with the coordinate planes or axes. Sketch a graph of each of the following equations by drawing their traces as in Problem 1. Then tell what the graph is ...

*Wednesday, September 24, 2014 by Crystal*

**Algebra 2**

Without graphing, identify the verx, axis of symmetry, and transformations from the parent function f(x)= absolute value of x y= 4- absolute value of x-2

*Wednesday, September 24, 2014 by Nick*

**Linear Algebra**

Find a scalar equation of the plane that contains the given point P=(-3,-3,1)and the given normal vector n = (-1,4,7)

*Wednesday, September 24, 2014 by Aegon*

**Algebra**

Find a scalar equation of the plane that contains the given point P=(-3,-3,1)and the given normal vector n = (-1,4,7)

*Wednesday, September 24, 2014 by Paul*

**algebra**

I invest a sum of money at 10% annual simple rate and twice that amount at 12% annual simple interest.My total yearly in come from both investment was $2890,how much was invested at each rate? Also What is the speed of each train if one train travels 8 mph faster than the ...

*Wednesday, September 24, 2014 by john*

**Algebra 2**

There is a circular garden in the middle of a square yard. The radius of the circle is 4x. The side length of the yard is 20x. What is the area of the part of the yard that is not covered by the circle? Possible answers: 4x(5) other person's answer 8x2(5 – pi ) 16x(25...

*Wednesday, September 24, 2014 by Sandra*

**Algebra**

I am having a hard time getting the right answer for this problem. Two people disagree. Please help... There is a circular garden in the middle of a square yard. The radius of the circle is 4x. The side length of the yard is 20x. What is the area of the part of the yard that ...

*Wednesday, September 24, 2014 by Sandra*

**algebra 2**

How do I graph 3x+y<5.if u can help it'd be appreciated

*Wednesday, September 24, 2014 by Janet*

**algebra**

Jesse and Larry entered a pie eating contest. Jesse ate 5 less than twice as many pies as Larry. They ate a total of 16 pies. How many pies did each eat.

*Wednesday, September 24, 2014 by kayla*

**Algebra Based - Physics Help Please!!!!**

a) In 1897, Madeline Boardman won the long-drive contest during the U.S. Women's Amateur Golf Tournament. Her winning drive was 125 m. if the ball was hit off the tee at a 45 degree angle, what did the magnitude of its initial velocity have to be for her to make the ...

*Wednesday, September 24, 2014 by Tim*

**Algebra**

Determine all values of k for which each pair of vectors is orthogonal. a) (1,2) and (k,k) b) (1,2,1) and (k,2k,4)

*Wednesday, September 24, 2014 by ZZZ Top*

**Algebra**

please explain and show step to this factoring problem 9w - w3 and 3h2 the 2 power + 1+3a this really makes no sense to me HELP

*Wednesday, September 24, 2014 by joann *

**algebra 2**

Solve the following systems of equations. If the system cannot be solved ,state that it cannot be solved and explain why. 1.3x+y=7 3x+y=10 2. 5x-2y=-24 -4y=-48-10x

*Wednesday, September 24, 2014 by Hannah *

**Algebra**

There is a circular garden in the middle of a square yard. The radius of the circle is 4x. The side length of the yard is 20x. What is the area of the part of the yard that is not covered by the circle? I keep coming up with 4x(5)but I don't think that is right. How do I ...

*Wednesday, September 24, 2014 by Sandra*

**Algebra**

Wanda took out a personal loan for $16,000 at 9% simple interest. How much interest will she pay after 5 years? Suppose she pays off the loan in 3 years instead of 5 years. How much money will she save in interest?

*Wednesday, September 24, 2014 by Sara*

**algebra. help!**

Is 4x-3=19 true, false, or open? Which of the following is a solution to the equation 16=4x-4? a. -5 b. -4 c. 5 d. 16

*Wednesday, September 24, 2014 by Hannah*

**algebra. help!**

is -7+9=-9+7 true false or open

*Wednesday, September 24, 2014 by Hannah*

**Algebra **

x= 3 + sqrt(3x-5)

*Wednesday, September 24, 2014 by Ashton*

**algebra**

A telemarketer claims that every call made to a customer costs at least $2, if a call costs $.50 plus $.10 for each minute, how long does each call last

*Wednesday, September 24, 2014 by Anonymous*

**Algebra **

The power P (in watts) generated by a windmill that has efficiency E is given by the formula P = 0.31ED^2V^3, where D is the diameter (in feet) of the windmill blades and V is the wind velocity (in ft/sec). Approximate the wind velocity necessary to generate 30,000 watts if E...

*Wednesday, September 24, 2014 by Ashton*

**Algebra**

A class of 23 students was using square tiles to build rectangular shapes. Each student had more than 1 tile and each had a different number of tiles. Each student was able to build only one shape of rectangle. All tiles had to be used to build a rectangle and the rectangle ...

*Wednesday, September 24, 2014 by KG*

**Algebra**

A coin collection contains 30 coins in nickels, dimes, and quarters. There are three more dimes than nickels. The value of the coins is 3.55. Find the number of quarters in the collection.

*Wednesday, September 24, 2014 by Lois*

**algebra**

If you walk 3/4 mile and then jog 2/5 mile, what is the total distance covered?

*Wednesday, September 24, 2014 by Jacqueline*

**Algebra**

The changes in the price of a certain stock each day from Monday to Thursday of one week were -$2.25, +$0.50, +$1.50, and +$0.75. If the overall change in the stock price for the week was -$0.50, write an equation that can be used to find the change in the price on Friday and ...

*Wednesday, September 24, 2014 by Shantel*

**algebra**

to pass a course with an A grade, a student ,must have an average of 90 or higher. A students grades on three tests are 93,92 and 83. What is the score the student must get on the nest test to get an A average?

*Tuesday, September 23, 2014 by Emily*

**math,algebra**

(3^-1X^3)^2 x 12X^5 my work: 3/2X^6 x 12X^5= 36/2=18X^11 but the answer was 4/3X^11

*Tuesday, September 23, 2014 by Chris*

**Algebra**

Maggie is making fruit punch. She uses 2 1/2quarts of grape juice and 1 1/2 quarts of orange juice. 1 quart of grape =$1 less and 1 quart of orange juice. The total cost to make the fruit punch is $12.50 how much is each quart of each juice?

*Tuesday, September 23, 2014 by Jeff*

**Algebra**

Logan saves $5.50 in dimes and quarters over a week. He has 20 more dimes than quarters. Find the number of dimes and quarters he saves.

*Tuesday, September 23, 2014 by Kyle*

**algebra**

Becky a saleswoman,is offered two salary plans. Plan 1 is $450 per week salary plus a 3% commission of sales. Plan 2 in a $300 per week salary plus a 16% commission of sales.How much would Becky need to make in sales for the salary to be the same from both plans?

*Tuesday, September 23, 2014 by annonomyous*

**algebra**

the numbers on two consecutively numbered gym lockers have the sum of 131. what are the locker numbers?

*Tuesday, September 23, 2014 by david*

**Algebra 1**

1) Alexis Received an 85, 89, and 92 On Three Tests. How Many Does She Need To Score On Her Next Test In Order To Have An Average Of At Least 90? 2) 1/5(30 + a)< 5 HEEEELPPP 😂😂

*Tuesday, September 23, 2014 by Mimii*

**Algebra **

A new set of car tires has a tread depth of 8 millileters. The tread depth decreases 0.12 millimeter per thousand miles driven. Write an equation that gives the tread depth as a function of the distance driven. Then predict what distance the tread depth will be 2 millimeters

*Tuesday, September 23, 2014 by Riley*

**Algebra 2 (Please, help me!)**

1. Explain how to find the slope of a line from a table of data. A: ? 2. Explain how to justify the Cross Products Property by using Mulitplication Property of Equality. A: ?

*Tuesday, September 23, 2014 by Victoria*

**Algebra 2 Answer Check**

If the rise and run are reversed for the linear equation y = 8x + 4, what is the slope of the new line? A: 0.125 or -1/8?

*Tuesday, September 23, 2014 by Victoria*

**algebra 2**

The average score on a standardized test is 750 points with a standard deviation of 50 points. What is the probability that a student scores more than 700 on the standardized test?

*Tuesday, September 23, 2014 by Anonymous*

**Algebra 2 Help plz**

The amount of paint an electric paint sprayer applies varies directly with time. A sprayer is set to apply 0.5 gallon in 2.5 minutes. Write an equation that gives the amount P of paint as a function of the time T. How much paint is applied if the sprayer is operated for 20 ...

*Tuesday, September 23, 2014 by Josh M*

**Algebra**

The selling prices of houses in a city during one year were normally ditributed with a mean of $259,000 and a standard deviation of $15,000. Which of the following is closest to the percentage of the homes that had a selling Price between $244,000 and $289,000? a. 81.8% b. 47....

*Tuesday, September 23, 2014 by Jessica *

**Algebra 2**

Explain how to justify the Cross Products Property by using the Multiplication Property of Equality.

*Tuesday, September 23, 2014 by Victoria*

**Algebra 2**

Explain how to find the slope of a line from a table of data.

*Tuesday, September 23, 2014 by Victoria*

**Algebra 2**

Explain how to find the slope of a line from a table of data.

*Tuesday, September 23, 2014 by Anonymous*

**Math Algebra**

At a shoe store, a salesman earns a weekly salary of $150. A salesperson is it also paid 2$ each pair of shoes he or she sells during the week.

*Tuesday, September 23, 2014 by Auxiliary Improvement*

**algebra**

1.Find an equation of the line that passes through (4,3) and is parallel to the line 3x-y=7. 2. Find the equation of the line through (4,3) perpendicular to the line 3x+y=7. Please show work so I know how to do it

*Tuesday, September 23, 2014 by Hannah *

**Linear Algebra**

Show that the set [(3,-2,4),(1,2,-1), (-6,4,-8) is linearly dependent by writing a non-trivial liner combination of the vectors that equals the zero vector. After some calculations I got t1=2, t2=0 and t3=1, but its my understanding that if a set is dependent, none of the t&#...

*Tuesday, September 23, 2014 by Jervis*

**Vector**

Let 𝑎⃗ and 𝑏 be two vectors in the xy plane making angles 𝜃 and ∅ with the x axis, respectively. Use vector algebra to show that: cos(𝜃 − ∅) = cos 𝜃 cos ∅ + sin 𝜃 sin ∅

*Tuesday, September 23, 2014 by HelpMaths*

**algebra**

the cinema sold 600 tickets total. adults tickets were $15 and childrens tickets were $8. they made a total of $7740. how much of each ticket were sold?

*Tuesday, September 23, 2014 by lucy*

**Algebra**

You are planing to put a title border along a 175-inch-wide wall in your kitchen. You want to use only whole titles. List all the possible whole number title widths of 8 inches or less, what size title could you use? 8 inch or 4 inch

*Tuesday, September 23, 2014 by Diego*

**algebra**

I really need that to my examples in my report tomorrow those i posted question, its a kind of test tomorrow please help me now please... even if now only...

*Tuesday, September 23, 2014 by jhia*

**algebra**

what is the system of equation of: 0.25x+0.15y=2.5 1.25x-1.25y=7.5

*Tuesday, September 23, 2014 by jhia*

**algebra**

What is the system of equation of: 1/2x+-2/3y=4 2x+1/3y=7

*Tuesday, September 23, 2014 by jhia*

**algebra**

what is the system of equation of: 1/2x+ 1/2y=4 3x-2y=5/4

*Tuesday, September 23, 2014 by jhia*

**Algebra**

Please show how to solve for problems like this: How many pounds of coffee that costs 4.50/lb be mixed with 20 lbs of coffee that costs 7.50/lb to make a mixture that costs 5.00/lb

*Monday, September 22, 2014 by Ken*

**algebra**

105/(-20+15) ------------------- 45/(-9)+12 Plz help me to solve this question. Thanks!

*Monday, September 22, 2014 by Pam*

**Algebra**

The vendor of a coffee cart mixes coffee beans that cost $7 per pound with coffee beans that cost $5 per pound. How many pounds of each should be used to make a 50-pound blend that sells for $5.79 per pound?

*Monday, September 22, 2014 by Kim*

**Advance Algebra**

An open box is to be made from a rectangular piece of tin 12 inches long and 10 inches wide by cutting pieces of x-inch square from each corner and bending up the sides. a. Find a formula that expresses the volume V of the box as a function of x. b. Find the domain of the ...

*Monday, September 22, 2014 by Soledad Jose-Dilao, Ed. D. et al*

**algebra**

the sum of to kim and tony's ages is 42, the difference in their ages is 4 years. what are the ages of kim and tony?

*Monday, September 22, 2014 by greg*

**Algebra 2**

Write the Expression as a complex number in standard form. 5i(3+2i)(8+3i)

*Monday, September 22, 2014 by Kaitlyn*

**algebra 2**

1. 5x+2>3x+10 =x>4 2. 8+2x< or equal too 6x-20 x> or equal too 7 3. 4(1-3n)-14>4(2n+3)-9n =? 4-12n-14>8n+12-9n 5. x/4<9 x<9*4=36 x<36 6. a/9>or equal to -15 a> or equal too -135 7. -p/7>-9 -p>-63 p<-63 8. -t/12> or equal too 6 -t>...

*Monday, September 22, 2014 by anonymous*

**algebra 2**

1. 5x+2>3x+10 =x>4 2. 8+2x< or equal too 6x-20 x> or equal too 7

*Monday, September 22, 2014 by anonymous*

**algebra**

a 25 inch piece of a steel rod is cut into 3 pieces so that the length of the second piece is twice the length of the first piece.The third piece is 1 inch longer than 5 times the length of the first piece.What are the lengths of the pieces

*Monday, September 22, 2014 by john*

**algebra 2**

x/4<9 x<9*4=36 x<36 a/9>or equal to -15 a> or equal too -135 -p/7>-9 -p>-63 p<-63 -t/12> or equal too 6 -t> or equal to 72 t< or equal too 72 how do u do these

*Monday, September 22, 2014 by anonymous*

**Algebra**

Simplify (4-2i/-10+5i) x (3-i/-3+i)

*Monday, September 22, 2014 by Marie*

**Algebra**

Solve -16t^2-8t=10 by completing the square

*Monday, September 22, 2014 by Marie*

**Algebra**

Given a point (-2,5determine a point that satisfies the specified symmetry. 1. Origin 2. y-axis 3. x-axis 4. y=x

*Monday, September 22, 2014 by Nick*

**Algebra 2**

Given a point (-2,5determine a point that satisfies the specified symmetry. 1. Origin (2,-5) 2. y-axis (2,5) 3. x-axis (-2,-5) 4. y=x ? Could you check if 1-3 is correct and could you help me on #4

*Monday, September 22, 2014 by Alicia*

**Algebra**

Show me how to solve -5-(-6)=

*Monday, September 22, 2014 by Del*

**algebra**

a charges $50 for gate and $3.50 per foot b charges $75 for gate and $2.25 per foot how many feet of fencing would result equal estimates?

*Monday, September 22, 2014 by Anonymous*

**algebra**

total $3.25 worth of coins nickels, dimes, quarters 2morenickels than dimes 1 more quarter than nickels how many of each coin

*Monday, September 22, 2014 by Anonymous*

**ALGEBRA**

A card is drawn from a standard deck of 52 cards. What is the probability this card will be a king or an ace? A. about 3.9% B. about 7.7% C. about 15.4% D. about 50%

*Monday, September 22, 2014 by nautica*

**algebra**

On a particular day, an airliner has 150 flights arrive early, 500 flights arrive on time, and 75 flights arrive late. What is the experimental probability that a flight will not be late? A. 75/725 B. 75/650 C. 500/650 D. 650/725

*Monday, September 22, 2014 by nautica*

**algebra**

In a high school basketball game, a player on the home team makes two free throws. One student asks the student next to her what he thinks the probability of hitting two free throws in a row is. The student replies, "The probability of him making a free throw is probably ...

*Monday, September 22, 2014 by nautica*

**algebra**

Bob is going to China, and he wants to bring some DVDs on the airplane. If Bob has a collection of DVDs, in how many ways can he bring of them? A.3 B.5 C.455 D.2,730

*Monday, September 22, 2014 by nautica*

**algebra**

In how many ways can a -person committee be formed from a group of people? A.30,240 B.63 C.126 D.252

*Monday, September 22, 2014 by nautica*

**advanced algebra**

The mean test scores with standard deviations of four English classes are given below. Class Mean Standard Deviation Mrs. Jones 89 1.9 Mrs. Rijo 82 1.4 Mr. Phan 73 3.4 Mrs. Scott 90 6.1 Which statement is most likely to be true?

*Monday, September 22, 2014 by nautica*

**algebra**

Is this set a subspace of R3 or not? Explain why or why not. Span{[1 2 1],[-1 1 3]} I've tried to do a three variable three unknown equation to solve for the scalars for each of the vectors but when doing it got very wrong numbers.

*Monday, September 22, 2014 by Jackk*

**Algebra**

Solve 9 - c <2 or -3c > 15 My answer is 7 or -5

*Monday, September 22, 2014 by Paula*

**Algebra**

Solve 5 < x-2 < 11 My answer is 7 < x < 13

*Monday, September 22, 2014 by Faye*

**algebra**

3x-5y+5z=-19 5x-4y-3z=-45 x-y+4z=12

*Sunday, September 21, 2014 by Anonymous*

**Algebra 2**

A football is thrown by a quarterback, the footballs height in feet h with respect to time in seconds T can be modeled using your quadratic function. You want to know when the football will be 7.5ft in the air because that's about the right height that your favorite ...

*Sunday, September 21, 2014 by BT*

**Algebra**

One base of trapezoid AGIE is four less than three times the other shorter base. The height of the trapezoid is one half of the shorter base. The area of the trapezoid is 210 square inches. Find the lengths of the bases and the height.

*Sunday, September 21, 2014 by Raven*

**Algebra**

When nine is added to both the numerator and the denominator of an original fraction, the new fraction equals six sevenths. When seven is subtracted from both the numerator and the denominator of the original fraction, a third fraction is two thirds. Find the original fraction...

*Sunday, September 21, 2014 by Raven*

**Algebra**

The units digit of a two-digit number is two more than four times the tens digit. When the digits are reversed, the new number is thirteen more than three times the original number. What is the original number? Please use algebraic equations to justify your answer.

*Sunday, September 21, 2014 by Raven*

**Algebra**

The units digit of a two-digit number is two more than four times the tens digit. When the digits are reversed, the new number is thirteen more than three times the original number. What is the original number?

*Sunday, September 21, 2014 by Raven*

**algebra**

Express the statement in terms of an inequality involving an absolute value. (Give your answer in terms of hours.) The arrival time t of train B must be at least 10 minutes different from the 2:00 P.M. arrival time of train A.

*Sunday, September 21, 2014 by Jenny*

**Algebra**

x^3-2x^2-1+2=0?

*Sunday, September 21, 2014 by Anonymous*

**pre algebra help**

9. how you would convert the repeating, non terminating decimal to a fraction? explain the process as you solve the problem. 0.1515 I don't understand this question can someone help explain this?

*Sunday, September 21, 2014 by jaden*

**algebra**

what if a boat used 21 gallons of gas to go 64miles, how many miles can the boat travel on 84 gallon of gas

*Sunday, September 21, 2014 by nadia*

**Algebra**

Solve 5<x-2<11 My answer is 7<x<13

*Sunday, September 21, 2014 by Paula*

**Algebra 2 (Please, help me!)**

The graph of a function passes through the points (9,-6) and (12, -3). What are the coordinates of these points after the function has been compressed by a factor of 1/3? A: ?

*Sunday, September 21, 2014 by Victoria*

**Algebra 2 Answer Check**

Solve. 2x + 4(x + 1) = 6(x + 2/3) A: No solution.

*Sunday, September 21, 2014 by Victoria*

**Algebra**

What is a1 if a33 is equal to -2p and a74 = 26p? Our topic is arithmetic series and sequence. Thanks.

*Sunday, September 21, 2014 by Erin*

**Algebra**

The question says given the function f(x)find the following: a graph is then shown with a) f(-1) b) f(3) c) find x when f(x) = -2 I have no idea where to start. I can't show you the graph here but there is a line with a starting point and ending point

*Saturday, September 20, 2014 by Ardine*