Friday

November 27, 2015
**Algebra**

Year Number of Graduates (in millions) 2009 15.4 2010 15.9 2011 16.3 2012 16 2013 15.7 a. Code the years using t = 1 for 2009 and fit a quadratic function to the data with the regression program on your calculator. equation is ________________________________ b. Predict the # ...
*Wednesday, November 25, 2015 by john*

**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*

**Algebra**

The number of bacteria in a certain population increases according to a continuous exponential growth model, with a growth rate parameter of 3.7% per hour. How many hours does it take for the size of the sample to double? Note: This is a continuous exponential growth model. Do...
*Wednesday, November 25, 2015 by Kanise*

**Algebra **

If (c) were f(k)=-4/k+7, what value of k would be excluded from the domain?
*Wednesday, November 25, 2015 by Tasha*

**Algebra **

A square has an area of 49 square units. Find the side length and perimeter of the square.
*Wednesday, November 25, 2015 by Anonymous *

**Algebra 1 Honors**

The volume of a cylinder is 157 cubic inches. The base of the cylinder has a diameter of 5 inches. What is the height of the cylinder? Round to the nearest tenth of an inch.
*Wednesday, November 25, 2015 by Anonymous *

**Algebra**

A square has an area of 49 square units. Find the sode length and perimeter of the square.
*Wednesday, November 25, 2015 by Kay*

**Algebra 1 Honors**

A taxi cab charges $2.50 for the first mile and $0.35 for each quarter mile after that. Johns taxi ride to he airport was 15.75 miles. What was his fare?
*Wednesday, November 25, 2015 by Shawn*

**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 *

**Algebra **

Steve made a business trip of 254 miles. He averaged 57 MPH for the first part and 56 MPH for the second part. If the trip took 4.5 hours, how long did he travel at each rate?
*Wednesday, November 25, 2015 by Matt*

**algebra**

The length of a rectangle is 5cm more than twice the width. The perimeter of the rectangle is 66 cm. Find the dimensions of the rectangle.
*Wednesday, November 25, 2015 by ehdz*

**algebra**

The length of a rectangle is 5cm more than twice the width. The perimeter of the rectangle is 34 cm. Find the dimensions of the rectangle.
*Wednesday, November 25, 2015 by ehdz*

**Algebra**

A rectangular box is to be made from a piece of cardboard 6 cm wide and 14 cm long by cutting out squares of the same size from the four corners and turning up the sides. If the volume of the box is to be 40 cm^3, what should the length of the side of the square to be cut out be?
*Wednesday, November 25, 2015 by Arnee*

**Algebra**

A page of print containing 144 square centimeters of printed region has a margin of 4 and 1/2 centimeters at the top and bottom and a matgin of 2 centimeters at the sides. What are the dimensions of the oage if the width across the page is four units of the length?
*Wednesday, November 25, 2015 by Arnee*

**Algebra II, part 2**

Part 2 of homework set. 6. Solve the quadratic using the quadratic formula. 2x^2+5x+9=0 7. Find the discriminant. Then determine the number and types of solutions. 2x^2+3x-18=0 8. Simplify Root -27 9. Simplify 8/(3+2i)
*Tuesday, November 24, 2015 by Micheal*

**Algebra II**

Need help please. Thank you. 1. Determine whether the function has a maximum or minimum. State that value. f(x)= -2x^2-4x 2. Determine what c would in order to complete the square. x^2-5x+c 3. Solve the quadratic by factoring. 3x^2-16x+5=0 4. Solve the quadratic by factoring. ...
*Tuesday, November 24, 2015 by Michael *

**algebra 2**

Can someone please help me solve this problem? I do not know how to do it. 2x(squared)+3x+1. And 3ay(squared)+9a?
*Tuesday, November 24, 2015 by Eunice*

**Algebra**

The functions f(x) and g(x) are described below: f(x) = 32x + 8 g(x) = 32x − 9 The graph of g(x) is obtained by shifting down the graph of f(x) by _____ units. Numerical Answers Expected! Answer for Blank 1: „ð Question 11 (Multiple Choice Worth 5 points) (03....
*Tuesday, November 24, 2015 by Brandon*

**Algebra**

9.The following table gives the number of graduates in health professions in the U.S. for various years. Year Number of Graduates (in millions) 2009 |15.4 2010 |15.9 2011 |16.3 2012 |16 2013 |15.7 a. Code the years using t = 1 for 2009 and fit a quadratic function to the data ...
*Tuesday, November 24, 2015 by john*

**Algebra**

The Yellow Pencil Company sells the best pencils ever made. If the cost of producing x hundred pencils is given by C(x)=0.4x^2-29x+44 and if the revenue generated from the sale of x hundred pencils is R(x)=-0.6x^2+19x. Money is in thousands of dollars. (a) Show all work to ...
*Tuesday, November 24, 2015 by john*

**Algebra 2**

Make predictions about how many times the graph of each equation below will touch the x axis. You may first want to rewrite some of the equations in a more useful form.=(x-2)(x-3). A. y=(x+1)^2 B. y=x^2+6x+9 C. y=x^2+7x+10 D. y=x^2+6x+8 E. y=-x^2-4x-4
*Tuesday, November 24, 2015 by Jj*

**Algebra 2**

Simplify each of the following expressions. Be sure that your answer has no negative or fractional exponents. (2x^2•y^-3)(3x^-1y^5)
*Tuesday, November 24, 2015 by Niall*

**Algebra 2**

Find the vertex of each of the following parabolas by averaging the x intercepts. Then write each equation in graphing form. Y=x^2-14x+40
*Tuesday, November 24, 2015 by Sam*

**Algebra 2**

Simplify each of the following expressions. Be sure that your answer has no negative or fractional exponents. (2x^2•y^-3)(3x^-1y^5)
*Tuesday, November 24, 2015 by Niall*

**Algebra 2**

Find the vertex of each of the following parabolas by averaging the x intercept. Then write each equation in graphing form. Y=(x-3)(x-11)
*Tuesday, November 24, 2015 by Sam*

**Algebra**

1. determine whether the equation represents a direct variation , if it does find the constant of the vartion 2y=5x+1
*Tuesday, November 24, 2015 by Sarah *

**algebra**

y/6=7.2
*Tuesday, November 24, 2015 by Christopher*

**Algebra**

A person invested $7000 for 1 year, part at 5%, part at 10%, and the remainder at 15%. The total annual income from these investments was $815. The amount of money invested at 15% was $200 more than the amount invested at 5% and 10% combined. Find the amount invested at each ...
*Tuesday, November 24, 2015 by Emma*

**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*

**Algebra 1**

Indicate which property is illustrated in Step 5. Step 5: =(4+4)x+(9+9) A. arithmetic fact B. associative C. distributive D. commutative i think it's a, but not sure
*Tuesday, November 24, 2015 by basketball&batman*

**Algebra 1- Please help whenever you get the chance**

The monthly cost of electricity in Smithville is determined by the function C(e) = $0.16e + $24.54, where e is the amount of electricity used in kilowatt-hours (kWh) and C(e) is the total cost. If the Fox family used 872 kWh of electricity last month, how much was their bill? ...
*Tuesday, November 24, 2015 by basketball&batman*

**Algebra**

If x varies directly as y and x=9 when y=2 find x when y is 6
*Tuesday, November 24, 2015 by Matthew*

**college algebra**

In a certain gear, a bicycle tire with a diameter of 27 inches makes 3 complete revolution of the pedal.If a cyclist is pedaling at a rate of 100 revolutions per minute, find the speed of the bicycle in miles per hour?
*Tuesday, November 24, 2015 by James*

**Algebra**

During the first part of a canoe trip, May paddled 20 km up steam and 20 km back in a total time of 5 hrs. The speed of the river is 3 km/hr. Find May’s speed in still water. Set up the equation first then solve.
*Tuesday, November 24, 2015 by john*

**Algebra**

The Yellow Pencil Company sells the best pencils ever made. If the cost of producing x hundred pencils is given by C x x x ( ) 0.4 29 44 = − + 2 and if the revenue generated from the sale of x hundred pencils is R x x x ( ) 0.6 19 = − + 2 . Money is in thousands of...
*Tuesday, November 24, 2015 by john*

**Algebra**

The distance traveled by an object moving in a straight line is given by s = t2 − 2t, where s is in feet and t is the time in seconds the object has been in motion. How long (to the nearest tenth) will it take the object to move 48 feet?
*Tuesday, November 24, 2015 by john*

**Algebra**

A person invested $7000 for 1 year, part at 5%, part at 10%, and the remainder at 15%. The total annual income from these investments was $815. The amount of money invested at 15% was $200 more than the amount invested at 5% and 10% combined. Find the amount invested at each ...
*Tuesday, November 24, 2015 by Emma*

**Algebra 2**

Is it possible for the company to produce 6 regular models and 5 sport models in one hour? Explain your reasoning This question is a project of finding the minimum loss and maximum profit
*Monday, November 23, 2015 by Naddy*

**Algebra 2**

How do you identify the vertex, the axis of symmetry, max or min value, and the domain and range or a function? y=-1.5(x+20)^2
*Monday, November 23, 2015 by Jess*

**Algebra**

One number is 58 more than twice another. Their product is 58 more than twice their sum. Find the numbers.
*Monday, November 23, 2015 by Morgan*

**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*

**Algebra**

Jonah has only nickels and dimes in her piggy bank they're 51 points in the total value is $4.05 How many nickels and how many times does she have
*Monday, November 23, 2015 by Sue*

**Algebra**

A college football coach wants to know if the is a correlation between his players' leg strength and the time it takes for them to sprint 40 yards. he sets up the following test and records the data: Every day for a week, he counts how many times each player can leg press ...
*Monday, November 23, 2015 by Anonymous*

**Algebra 2**

Is it possible for the company to produce 6 regular models and 5 sport models in one hour? Explain your reasoning This question is a project of finding the minimum loss and maximum profit
*Monday, November 23, 2015 by Naddy*

**Algebra**

1.A motorcycle has a reserved fuel of 0.5 liter which can be used if it's 3-liter fuel tank is about to be emptied. The motorcycle consumes at most 0.5 liter fuel for every 20 km of travel. a. What mathematical statement represents the amount of fuel that would be left in ...
*Monday, November 23, 2015 by Sylvia*

**Pre-Algebra**

A ball is thrown straight up at 46 feet per second from about 6 feet above the ground. How long will it take for the ball to reach a height of 39 feet?
*Sunday, November 22, 2015 by John*

**Pre-Algebra **

1.Write the ratio in the simplest form 45:15 9:3 3:1*** 1:3 4:1 2.Solve the following proportion p/6 =7/8 p=5.25*** p=8 p-10.5 p=42 3.James has a model helicopter. The model is 8 inches long and 7 inches wide. The actual helicopter is 56 inches long. What is the helicopter'...
*Sunday, November 22, 2015 by Cami*

**Algebra**

The second of three numbers is three times the first. The third is 5 more than the second. if the second is decreased by twice the third number, the result is five? x 3x 3x-2(3X)=5 x= 3/5 ?
*Sunday, November 22, 2015 by NIck*

**algebra**

The area of a rectangle is 80ft square two. determine the length and width if the length is 5 times the width. Write the equation and solve.
*Sunday, November 22, 2015 by jesus*

**Algebra 1**

If Tyler and Maria can paint their kitchen in 5 hours and Maria can paint it in 9 hours by herself how long would it take Tyler to do it alone?
*Saturday, November 21, 2015 by Anonymous *

**Algebra **

If Tyler and Maria can paint their kitchen in 5 hours and Maria can paint it in 9 hours by herself how long would it take Tyler to do it alone?
*Saturday, November 21, 2015 by Maura *

**College Algebra**

Why hovering near the top of a waterfall of a national park of 6400 feet, a helicopter pilot drops his sunglasses. The height h(t) of the sunglasses after t seconds is given by the polynomial function h(t) = -16t(squared) + 6400. When will the sunglasses hit the ground? (in ...
*Saturday, November 21, 2015 by Myles*

**Algebra - Math**

The medium side of a triangle is 9 more than 1/2 the shortest side,and the longest side is 4 times the shortest side. If the perimeter is 31 in. Find the lengths of the sides of the triangle
*Saturday, November 21, 2015 by Licinia *

**Algebra**

James walked 212 miles in 23 of an hour. What was his average speed, in miles per hour?
*Saturday, November 21, 2015 by Kevin*

**College Algebra**

Sam can sort 4000 pieces of mail in 5 hours. With a co-worker they can sort 4000 pieces of mail in 3 hours. How long will it take his co-worker to sort 2000 pieces of mail.
*Saturday, November 21, 2015 by Kevin Kirkpatrick*

**college algebra**

Diagonal length of flooring is 2 feet longer than the length and 5 feet longer than twice the width what are the dimensions of the flooring
*Saturday, November 21, 2015 by Jessie*

**Algebra**

1.Write an equation in slope- intercept form of the line that passes through the given point and is parallel to the graph of the given equation. (2,-2);y=-x-2 A.y=-2x B.y=2x ******** C.y=1/2x D.y=-x 2.Write an equation in slope- intercept form of the line that passes through ...
*Friday, November 20, 2015 by Mike*

**Algebra 2**

Perimeter is 400 ft and the area 9100 ft, give possible widths.
*Friday, November 20, 2015 by Help*

**algebra**

No. 2 alyssa has some coins in her purse consisting of pennies, nickels and dimes. She has 2 more nickels than dimes and thrice as many pennies as nickels. If the total is 0.52 dollars how many coins of each kind does she have.
*Friday, November 20, 2015 by Chris*

**Algebra**

Compare the number in each exercise using an inequality symbol 1. 4/3, square root of 2 2. -7/11, -0.63 3. -22/25, -0.8
*Friday, November 20, 2015 by Anonymous*

**algebra**

points A,B,C,D,E,F with no three collinear
*Thursday, November 19, 2015 by Kz*

**math fractions**

Sherry spent 1/5 of her money on school supplies and 3/8 of the remainder on a CD player. She had $25 left. How much money did she have at first? do not use algebra
*Thursday, November 19, 2015 by daniel*

**Algebra 2**

Did I solve this problem correctly? Directions: State the possible rational zeros for each function. Question:f(x) = x6 - 64 Answer: Constant term:64 Factors:1,2,4,8,16,32,64 Leading coefficient:1 Factors: 1 ±1,2,4,8,16,32,64/1 = ±1, ±2, ±4, ±...
*Thursday, November 19, 2015 by Truda*

**Algebra 2**

Is my work for this problem correct? Directions: State the possible rational zeros for each function. Question: f(x) = 3x^2 + 2x – 1 Answer: Constant term:-1 Factors: 1 Leading coefficient:3 Factors: 1 and 3 ±1/1,3= ±1/1,3 and ±1/1,3 = ±1/1 and...
*Thursday, November 19, 2015 by Rudy*

**Algebra**

1. What are the next two terms of the following sequence? 1, 5, 9... A. 27, 211 B. 10,11 C.12,15 D.13,17 2. Which of the following are examples of arithmetic sequences? Choose all that apply. A. -2,2,6,10 B. 1,3,9,27 C. 5,10,20,40 D. 5,1,-3,-7 3. What is the common difference ...
*Thursday, November 19, 2015 by Danielle*

**algebra**

I need help solving this please. x/4 - x/5 - 1/3 = 16/15
*Thursday, November 19, 2015 by kelli*

**algebra**

The data below shows the number of hours a week on average a group of students spend volunteering for community service projects. What is a cumulative frequency table that represents the data? 4 5 10 21 6 2 9 8 12 15 8 14 6 4 6 11 3 2 9 16 22 23
*Thursday, November 19, 2015 by angela*

**algebra**

How do you enlarge the pentagon and its interior segments by a scale factor of 2. Then, enlarge it again by a scale factor of 4?
*Thursday, November 19, 2015 by Kayla*

**Algebra 1**

systems of equations with different slopes and different y-intercepts have more than one solution Always sometimes Never I believe it is Never or sometimes I am leaning towards Never
*Thursday, November 19, 2015 by A User*

**algebra**

How do you enlarge a pentagon and it's interior segments by a scale factor of 2. Then, enlarge it again by a scale factor of 4?
*Thursday, November 19, 2015 by Kayla*

**Algebra**

Word problem: A house is to be built on a lot 70ft wide by 100ft deep. The shorter side of the lot faces the street. The house must be set back from the street at least 25ft. It must be 20ft from the back lot line and 10ft from each side lot line. What are the maximum length ...
*Thursday, November 19, 2015 by Maya^.^*

**Algebra 1**

You use a line best fit for a set of data to make a prediction about an unknown value. The correlation coefficient for your data set is -0.993. How confident can you be that your predicted value will be reasonably close to the actual value? a. I can't be confident at all; ...
*Thursday, November 19, 2015 by basketball&batman*

**algebra**

I need help solving this please. x/4 - x/5 - 1/3 = 16/15
*Thursday, November 19, 2015 by kelli*

**Algebra 2 (Math)**

Solve by the system of equations by substitution. x + 2y + z = 14 y = z + 1 x = -3z + 6 Anyone able to help me with this? I've been stuck on it all day and can't seem to solve it, it doesn't make any sense to me.
*Thursday, November 19, 2015 by Lucas*

**algebra**

12 less than the product of 14 and b
*Thursday, November 19, 2015 by nina*

**Algebra(please check my answers)**

**Fill in the appropriate vocab words that best fit into the sentences below** ~" Word Bank "~ A) central angle B) line of symmetry C) reflection D) transformation E) vertical angles F) transversal G) point H) circle ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ...
*Thursday, November 19, 2015 by Maya^.^*

**English**

The High School Step Team Karla’s cousin Jade urged her to join the step team. “This afternoon you should definitely try out!” Jade suggested after the final bell rang. “I know she wants the best for me,” Karla thought to herself, “but I’m ...
*Thursday, November 19, 2015 by Kaai97*

**Algebra**

An agent made a $7, 500 commission for selling a house. The commission rate is 6%. a. What was the price of the house? b. if the commission rate is raised to 7%, what commission would the agent make for the price in part (a)?
*Thursday, November 19, 2015 by Maya^.^*

**Algebra 2**

Name the vertices and then find the values of x and y that minimize the objective function. x >= 2 y >= 0 3x + 2y >= 12 Minimum for C = x + 5y Help with system of constraints please! I'm terrible at this...
*Thursday, November 19, 2015 by Reese*

**Algebra 2**

Solve by Substitution x + 2y + z = 14 y = z + 1 x = -3z + 6
*Thursday, November 19, 2015 by John*

**algebra 2a help**

the minimum value of a function is the smallest y-value of the function true or false
*Thursday, November 19, 2015 by no of your business*

**algebra 2a help**

True or False Complex numbers can be graphed on the real xy coordinate plane?
*Thursday, November 19, 2015 by no of your business*

**Algebra**

A rock climber looks at the top of a vertical rock wall at an angle of elevation of 74 degrees. He is standing 4.2m from the base of the wall and his eyes are 1.5m from the ground. How high is the wall, to the nearest tenth of a meter? o_o I'm clueless
*Thursday, November 19, 2015 by Maya^.^*

**algebra**

what are those?
*Thursday, November 19, 2015 by Angel Davis*

**algebra**

what is the coefficient in 3x to the second power + 2
*Thursday, November 19, 2015 by Caitlyn*

**Algebra(please check my answers)**

**Choose the Vocab word that best fits the given sentences** ~Word Bank~ A)slope B)domain C)vertical line test D)function E)negative correlation F)solution G)range H)linear equation ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ GIVEN QUESTIONS W/ MY ANSWERS 1. The tilt slant...
*Thursday, November 19, 2015 by Maya^.^*

**algebra **

The area of a circle is 78.5 square centimeters, and a subtending arc on the circle has an arc length of 6pi. The estimated value of is 3.14. what is the measure of the angle subtended by the arc in degrees?
*Thursday, November 19, 2015 by Anonymous*

**Algebra**

I need more guidance on these...o_o Simplify these expressions 1. (x/3)^2 2. (2a/c^2)^4 (the expressions in the parentheses are fractions)
*Thursday, November 19, 2015 by Ariella*

**Algebra**

__fl oz = 1 1/2 pt 2 3/4 t = __lb
*Thursday, November 19, 2015 by Luce*

**Math/ algebra please help **

Y - 5=1 over 3 A. -2 B. 8 C. 18 D.6 6x + 29 = 5 A. -4 B. -18 C. 204 D. -144 Combine like terms -21a + 16a A. -5a B. 5a C.37a D. -37a Simplify the expression 9a - b -2a - 10b A.-7a + 11b B. 11a+ 9b C. -11a+ 9b D.7a+11b 5(x+10)+x A. 6x+15 B.5x+15 C.6x+50 D.4x-50 Solve the ...
*Thursday, November 19, 2015 by Bandgeek15*

**Pre-Algebra**

how do I solve... 6/x + 3/ (I'm studying adding and subtracting mixed/improper fractions)
*Thursday, November 19, 2015 by |||Tris Prior|||*

**Algebra I**

**Match each word or phrase w/ its definition** Word Bank: A) least common multiple (LCM) B) repeating decimal C) reciprocals D) dimensional analysis E) terminating decimal F) least common denominator (LCD) G) multiple ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ GIVEN ...
*Thursday, November 19, 2015 by Hazel*

**Algebra**

The difference between two numbers is 86. Seven times the smaller is equal to 4 more than the larger. What are the numbers?
*Wednesday, November 18, 2015 by cristina*

**Algebra 1**

A math test is worth 100 points and has 38 problems. Each problem is worth either 5 or 2 points. How many problems of each point value are on the test?
*Wednesday, November 18, 2015 by Stacy*

**algebra**

The sum of Kaitlyn and John's ages is 26 and one-thirds years. John is twelve years older than Kaitlyn. How old is Kaitlyn?
*Wednesday, November 18, 2015 by Chrisna*

**algebra**

How many degrees warmer is the average temperature -1.7 than -13.4
*Wednesday, November 18, 2015 by chase*

**Algebra 1- Just one question**

Rebecca is shopping for back-to-school clothes. For every 4 shirts she buys, she also buys 1 pair of pants. Each shirt costs $12.97, and each pair of pants costs $18.98. If Rebecca buys 8 shirts, how much does she spend on pants? a. $25.96 b. $37.96 c. $103.76 d. $151.84 i ...
*Wednesday, November 18, 2015 by basketball&batman*

**algebra**

Solve this equation for x. 0.5(5-7x) = 8-(4x+6)
*Wednesday, November 18, 2015 by charlie*

**Pre-Algebra(please help ASAP!!!!!)**

Find the GCF's of the numbers 36, 81, and 27
*Wednesday, November 18, 2015 by Snoopy:3*

**Algebra**

The Freezer temperature is to be kept between 18F and 28F, inclusive
*Wednesday, November 18, 2015 by Shel*