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Algebra

algebra
The values from a stem-and-leaf plot are:27,27,29,33,38,44,44,44,46,50,58,in numerical order.Please explain how to find the lower quartile for this set. I would take the median of the first five values 27,27,29,33,38;this would make 29 the lower quartile.Is this correct? Is ...

algebra
Please help with this problem: An ellipse and a hyperbola have the same foci, $A$ and $B$, and intersect at four points. The ellipse has major axis 50, and minor axis 40. The hyperbola has conjugate axis of length 20. Let $P$ be a point on both the hyperbola and ellipse. What ...

algebra
The following stem-and-leaf plot values shows the average monthly sales commissions (in hundreds of dollars)for a major corporation's nationwide sales group : 27,27,29,33,38,44,44,44,46,50,58. What is the mode of this distribution? Thank You.

algebra
The following stem-and-leaf plot values show the average monthly sales commissions (in hundreds of dollars)for a major co rporation's nationwide sales group: 27,27,29,33,38,44,44,44,46,50,58. What is the mean of the distribution? Please show as much work as possible. Thank You.

algebra
A baby weighed 7.25 lb at birth. At the end of 8 months, the baby weighed 2 1/2 times its birth weight. How many pounds did the baby weigh at the end of 8 months?

Algebra
Let $f(x) = \dfrac{2-3x}{5-2x}$. For what value of $a$ is $f(a) = 3$?

algebra
Jennny decided to open up her new coffee shop. Jenny needs to know how much he will need to bring in with the coffee shop to keep up with costs and revenue. With this problem, we have to make the problem into this: profit=the revenue- the cost of the buildings coffee they ...

Algebra
A salesman starts a trip with 15 gallons of gasoline in his tank. After traveling 220 miles he has 10 gallons of gasoline in his tank. Model this relationship with a linear equation relating the number of miles you can travel to the remaining gallons of gasoline. Explain what ...

Algebra 1
A salesman starts a trip with 15 gallons of gasoline in his tank. After traveling 220 miles he has 10 gallons of gasoline in his tank. Model this relationship with a linear equation relating the number of miles you can travel to the remaining gallons of gasoline. Explain what ...

algebra
one half of a number decrease by 16

college algebra
A $136000 trust is to be invested in bonds paying 8%, CDs paying 7%, and mortgages paying 10%. The bond and CD investment must equal the mortgage investment. To earn a $12040 annual income from the investments, how much should the bank invest in bonds?

algebra
a rocket is launched at the top of a building. the height of the rocket (in meters) written in terms of time (seconds) can be modeled by h(t)=-4.9t^2+9.8t+73.5. what is the maximum height?

Algebra
The table below represents the distance of an airplane from its destination as a function of time: Time (hours) x Distance (miles) y 0 2,700 1 2,160 2 1,620 3 1,080 4 540 Part A: What is the y-intercept of the function, and what does this tell you about the airplane? (4 points...

Algebra
The table below represents a linear function f(x) and the equation represents a function g(x): x f(x) −1 −5 0 −1 1 3 g(x) g(x) = 2x − 7 Part A: Write a sentence to compare the slope of the two functions and show the steps you used to determine the slope? (6 points) ...

Algebra 2
What is the solution for the determinant? |1 7 | |0 -3| How do you find the solution? I'm probably going to feel really stupid because it's probably simple but I'm just having some problems. Okay, a lot.

Algebra
Solve for x in the following matrix equation. [5x-8 1] = [2 1] [3 4m-1] [3 7m+6] How do you do this? I hardly know anything about this... The packet I got that was supposed to help me understand matrices and stuff just made me more confused.

algebra
Luke is tiling a square patio in his backyard. He has 121 square-shaped tiles that will cover the entire patio. The maximum number of tiles that Luke can fit along one side of the patio is

algebra
Miranda worked two part-time jobs last week. The first job paid $8 an hour, and the second job paid $11 an hour. She worked a total of 23 hours last week and earned $208. How many hours did Miranda work at the first job?

Algebra
5. Solve for x in the following system. 6x + 6y = -2 y = x I can't seem to figure this out, can someone give me some steps into solving this? I've tried so many times.

Algebra
8. Solve the system using elimination. x + 2y = 1 4x + y = 11 So I added both equations and got 5x + 3y = 12 but am unsure of where to go next with it. I am having the same problem on another question just a bit different than this in which it just asks to solve for x.

Algebra
Solve for x in the following system. 6x + 6y = -2 y = x I'm not sure how to get x, because when I tried it left me with both y and x

Math, algebra
1. If $x <> (sqrt xy)/(|x-y|), find 4 <> (9 <> 1) to the nearest tenth. <>=diamond This is a function, where the "diamond" represents a function. 2. If f(x) = 3x^2 - 5, what is the value of f(f(-1))?

algebra
f(x)=160.2^x

algebra
The fifth term of an A.P exceeds twice the second term by 1.The tenth term exceeds twice the fourth term by 3. Find:1.the first term. 2.the common difference. 3.the sum of first twenty five terms.

algebra
Hi, I needed help in simplifying the following in steps please: a/a+a^2 keeping in mind that a is over a + a^2, not separate. Thank you.

intro to algebra
Hookes law states that the distance that a spring is stretched by hanging object varies directly as the mass of the object. If the distance is 20 cm when the mass is 3kg, what is the distance when the mass is 5 kg?

Algebra
The score of Ragini in mathematic is 23 more than two third of a score in English if he score X marks in English what is her score in mathematics?

Algebra
A rectangular garden is 54 feet longer than it is wider. Its perimeter is 292 feet. Write a system of linear equations whose solution gives the width and length of the garden. Use the substitution method to solve and check your answer.

algebra
Peter has 800 yards of fencing to enclose a rectangular area. Find the dimensions of the rectangle that maximize the enclosed area. What is the maximum​ area?

Algebra
Two angles are supplementary if their sum is 180 degrees the larger angle measures 6 degrees more than twice the measure of the smaller angle if x represents the measure of the smaller angle and these two angles angles are supplementary find the measure of each angle

Math - Calc 2/Algebra
I'm trying to find the partial fraction decomposition of: 10x^2+2x-2/x^2(x+1) I already found B=-2 and C=6 Plugging in the numbers, I get: 10x^2+2x-2=Ax(x+1)+(-2)(x+1)+(6)x^2 How do I solve this for A? Maybe this is just some algebra that I'm rusty on. But I'm having trouble ...

algebra
What is the cost, C for manufacturing x units of a certain product is given by C=x/2+30 find the number of units manufactured at a cost f 9230 solve.

college algebra
A toy rocket is launched with an initial velocity of 44.1 meters per second from a 1 meter tall platform. The height h of the object at any time t seconds after launch is given by the function h (t)-4.9t squared +44.1t +1. How long after launch did it take the rocket to reach ...

algebra
The stopping distance d of a car after the brakes have been applied varies directly as the square of the speed r. If a car traveling 50 mph can stop in 250 ​ft, how fast can a car travel and still stop in 90 ​ft?

Algebra
NEED HELP ASAP! x/x-2 + x-1/x+1 = - 1 Please show me how you got your answer as well. :)

algebra
-11 less then or equal too 1-4w

Algebra
Which expression uses the commutative property of addition and the associative property of multiplication to rewrite the expression (3⋅2)⋅5+7

algebra
prove that cosA/1-sinA=2cosecA

algebra
Johnny starts his hike at his car site. He will take a break halfway between the car site and the campsite and then head on to the campsite. Use the diagram below to answer the questions. (a graph of a coordinate plane. the max number for x is 13 and max number for y is 11. a ...

Algebra Equation
One more than the product of 22 and Mabel's height. Use variable m for Mabel's height write algebraic expression

Algebra
Saturday night the movie theater sold 60 student tickets and 20 adult tickets earning $450. Sunday afternoon the movie theater sold 20 student tickets and 32 adult tickets earning $340. How much does a student tickets and an adult ticket cost?

Algebra
How many solutions as a system of equations have? 2X= -10y + 6 & x+5y=3

Algebra 1
Simplify -(2xy^3)^-5 A: -32x^5y^15 B: -32/x^5y^15 C: -1/32x^5y^15 D: -1/32x^4y^2 I have a good understanding of Exponents, its just that I don't get this one. I feel like it is C but at the same time I feel like it is B. I got C though but I don't understand how they got -1 on...

Math-Algebra
Tony asked his friend to guess his mathematics test score. He gave these hints to help his friend guess: -It has two digits -The digit in the tens place is two more than twice the digit in the ones place. -The number formed by reversing the order of the digits is 5 more than 3...

algebra
nestor has nickels, dimes, and quarters amounting to $1.85. if he has twice as many dimes as quarters, and the number of nickels is two less than twice the number of dimes, how many quarters does he have?

algebra
the sum of ages of maria and anna is 35. when maria was two-thirds her present age and anna was three fourths of her present ages, the sum of their ages was 25. how old is maria now?

algebra
if log xy=6 and log x/y=2. solve for x and y

Algebra 2
Graph a sine function whose amplitude is 5, period is 6π , midline is y=−2 , and y-intercept is (0, −2) . The graph is not a reflection of the parent function over the x-axis. im not so sure how i would graph this :/

ALGEBRA 1
How do I solve "-2n-8n+42=0" using the quadratic formula?

Algebra 1
how do I solve 5x^2+5x-60=0 using the quadratic formula?

Algebra 1
How do I solve this quadratic equation using the quadratic formula "8a(squared)-a+2=0"

Algebra 2
Over a 24-hour period, the temperature in a town can be modeled by one period of a sinusoidal function. The temperature measures 70°F in the morning, rises to a high of 80°F, falls to a low of 60°F, and then rises to 70°F by the next morning. What is the equation for the ...

Algebra 2
Amanda surveyed 20 juniors and seniors at Delmark Highschool to find the number of hours per week they spend working at part time jobs. Her results are shown below Junior - 20,10,20,15,0,0,10,20,15 Senior - 20,20,10,10,0,0,0,10,0,10 Which statement about the data is true? A - ...

Algebra 2
The functionf(x) is multiplied by a factor of 2 and then 3 is added to the function. f(x)=sin(x) What effect does this have on the graph of the function? The graph is vertically compressed by a factor of 3 and shifted up 2 units. The graph is vertically stretched by a factor ...

algebra
A Spanish class has a total of 46 students. The number of females is 14 less than the number of males. How many males and how many females are in the class?

Algebra 2
What is the frequency of the function f(x)? f(x)=−2sin(x/4)+3 Express the answer in fraction form. would is be (x/4)?

algebra 2
the two numbers is 9, the sum of their squares is 41. what is the lager number

math algebra
Fill in the missing numbers to complete the linear equation that gives the rule for this table. x y 2 22 3 33 4 44 5 55 y = x + Submit

algebra
back from break, need help again The height , h, in feet, of a bottle rocket is modeled by: where t is the time in seconds. A. Factor the expression. H = -16t^2 + 60t = 4t(-4t + 15) B. What is the height of the rocket after 2 seconds? When t = 2 H = 4t(-4 times 2 + 15) = 28 C...

algebra
During a hurricane evacuation from the east coast of Georgia, a family traveled 450 miles west. For the first part of the trip, they averaged 25 mph less than the second part, where their average speed was 62mph. If the total time of travel was 9 hours, how many miles did they...

Algebra
(need help with checking answers) The height , h, in feet, of a bottle rocket is modeled by: h = -16t^2 + 60t where t is the time in seconds. A. Factor the expression. H = 16t^2 +60 = 4(4t^2 + 15) B. What is the height of the rocket after 2 seconds? H = 4(4 times 2^2 + 15) = ...

Algebra 2
The graph of f(x)=cos(x) is transformed to a new function, g(x) , by stretching it horizontally by a factor of 4 and shifting it 1 unit up. What is the equation of the new function g(x) ? im so confused :/ please help

Algebra 2
A sine function has the following key features: Frequency = 14π Amplitude = 2 Midline: y = 2 y-intercept: (0, 2) how would i graph this?

Algebra
What is the distinct letter in the word algebra?

algebra
When using the big hose and the small hose, Sam can fill her pool in 15 minutes. The small hose when used alone takes 60 minutes to fill the pool. How long would it take Sam to fill her pool using only the big hose? Don't understand how to set up equation.

Algebra
The height , h, in feet, of a bottle rocket is modeled by: H = -16t^2 +60t where t is the time in seconds. A. Factor the expression. B. What is the height of the rocket after 2 seconds? C. What is the height of the rocket after 3.75 seconds? Explain the solution.

Algebra
The height , h, in feet, of a bottle rocket is modeled by: where t is the time in seconds. A. Factor the expression. B. What is the height of the rocket after 2 seconds? C. What is the height of the rocket after 3.75 seconds? Explain the solution.

Algebra
Is H=-4.9t²+vt+s the formula for a projectile motion, where h is height in meters t time in seconds and v velocity in meters per second and s start height in meters

Algebra 2
The value of a baseball card can be modeled by exponential decay. The value will decrease at a rate of 0.2% each yeah. The card was originally valued at $250 in the year 2000. A- Use the exponential decay formula to write an equation to model the situation. B- Use your ...

Algebra
A student scored 81 and 95 on her first two quizzes. Write and solve a compound inequality to find the possible values for a third quiz score that would give her an average between 85 and 90.

Math - algebra
Oceanside bike rental shop charges 14 dollars plus 9 dollars an hour for renting a bike. Joan paid 86 dollars to rent a bike. How many hours did she pay to have the bike checked out? X is unknown N= 9h+14 86= 9h+14 86-14

Algebra
1. Draw an algebra tile model for the polynomial in simplified form: 8x^2 - 4x -3x^2 + 6 + 2x -7 8 big blue squares, 4 bars, 3 big red squares, 6 little yellow squares, 2 green bars, 7 little red bars; (is this correct?) 2.Study the diagram of algebra tiles below. 3 big blue ...

Algebra 1 B
Has anyone done Algebra 1B: Unit 5 Portfolio in CA

Algebra 1B
solve #27 page 669 (4a^2-6+3a)/(7+4a) my answer is 4a^2+3a*6 over 4a+7 but I need to use long division please help

Algebra 2 read plz
The average daily minimum temperature for Pablo’s hometown can be modeled by the function f(x)=15.3sin(πx6)+44.1 , where f(x) is the temperature in °F and x is the month. x = 0 corresponds to January. What is the average daily minimum temperature in June? Round to the ...

Algebra 2
The average daily minimum temperature for Pablo’s hometown can be modeled by the function f(x)=15.3sin(πx6)+44.1 , where f(x) is the temperature in °F and x is the month. x = 0 corresponds to January. What is the average daily minimum temperature in June? Round to the ...

Algebra
If x + (1/x) = a Find these in terms of a: x^2 + (1/x^2) and x^3 + (1/x^3) I got a^2 and a^3 as my answers, but the book says a^2 - 2 and a^3 - 3a. How did they get that?

Algebra
Find a trigonometric equation in the form y = a sin (b (x-c)) which has a minimum of (3, -5) and a zero value of (6, -1). There is a graph with the minimum and the zero value labeled. It is wavy with suggests that it is a sin curve.

Algebra
Solve 3^2x+1 = 5(3^x) + 2 I would know how to solve it if it was only 3^2x+1, but now it seems more complicated.

Algebra
How do you solve sin x * cos x = 1/4 I don't know where to start.

Algebra
When 345 is added to a number, the result is 987. Find the number?

Algebra
How to use (3+a+b)3 to a commutative law of multiplication to a equivalent equation

Algebra
What is the equation of the line, in slope-intercept form, that goes through the point (2,-3) with m=6 ?

Algebra
how many different two letter arrangements can you man using the letters a,b,c,d,e

algebra
how many liters of distilled water must be added to 80 liters of 60% acid solution to obtain a 50 % acid solution?

Algebra
Janice can type in 30 min Bianca can type in 45 min how long if they work together

Algebra 2//read bottom
The average daily minimum temperature for Pablo’s hometown can be modeled by the function f(x)=15.3sin(πx6)+44.1 , where f(x) is the temperature in °F and x is the month. x = 0 corresponds to January. What is the average daily minimum temperature in June? Round to the ...

algebra
Tom is making a punch that contains 80% cranberry juice and the rest is ginger ale. how do I write this equation 100=80 g=x

Algebra 2 help please.
The average daily minimum temperature for Pablo’s hometown can be modeled by the function f(x)=15.3sin(πx6)+44.1 , where f(x) is the temperature in °F and x is the month. x = 0 corresponds to January. What is the average daily minimum temperature in June? Round to the ...

Algebra
Use the figure to answer the following questions: ( a triangle with the bottom right corner of it labeled L with (1, 1) x y coordinates. Left corner of the triangle is labeled M at the (-3, 1) coordinates. the top of the triangle is labeled K at the (-2, 5) coordinates. A. ...

algebra
You roll a red number cube and a blue number cube. Let A be the event "at least one number cube shows a 6" a) Find P(A) by finding the sum of P(6 on red cube, no 6 on blue cube), P(no 6 on red cube, 6 on blue cube), and P(6 on both cubes) b) Describe the event "not A" then ...

algebra
Will someone please simplify and clearly define the terms "Rate," "Time," and "Work done," as it relates to the work done by one or more persons. Thank you so much!

Algebra 1 B Unit 6: Rational Expressions and Func
1. Solve. (-18x^3+17x+6)/(3x+2) A. -6x^2+4x+3 B. 6x^2+4x-3 C. -6x^2+4x-3 Dx^2-4x+3

algebra 1
Could someone check these? basic honors algebra 1 question of eight students in a class three will be chosen for student government positions. what is the number of permutations of those eight students to hold the three different positions? 24** 336 112 56

Algebra
A certain forest covers an area of 2,000 square kilometers. Suppose that each year this area decreases by 6%. What is the function that best represents the area of the forest each year and how much area remains after 12 years? Round your answer to the nearest square kilometer...

Algebra
Which of the following statements is false? The sum of two rational numbers is always rational. The sum of a rational number and an irrational number is always rational. The product of a nonzero rational number and an irrational number is always irrational. The product of two ...

Algebra 2
The average daily maximum temperature for Laura’s hometown can be modeled by the function f(x)=4.5sin(πx6)+11.8 , where f(x) is the temperature in °C and x is the month. x = 0 corresponds to January. What is the average daily maximum temperature in May? Round to the ...

Algebra
ANSWERS TO THE UNIT 6 LESSON 13 MATH TEST??? PLEASE?? (CONNECTIONS ACADEMY)

Algebra
A wrestling match has eliminations each round. The table below shows the number of wrestlers in each of the first 4 rounds of the tournament: Round (x) 1 2 3 4 Wrestlers f(x) 64 32 18 9 Compute the average rate of change of f(x) from x = 1 to x = 4 and identify the meaning of ...

College Algebra
A nut moves 5/64 inches for each turn Find the number of turns is will take for the nut to move 1 7/8 inches.

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