Algebra

algebra
Here are yesterday's high temperatures (in Fahrenheit) in 13 U.S. cities. 50 , 56 , 56 , 58 , 60 , 61 , 63 , 66 , 67 , 71 , 71 , 80 , 83 Notice that the temperatures are ordered from least to greatest. Give the five-number summary and the interquartile range for the data set.

Math [Algebra]
Josh simplified 4x - 8x ÷ 2 and said the answer was -2x. What was Josh's error? What should his answer should've been?

Algebra
who has the answers to Unit 10 Solving Inequalities Unit Test for Algebra 1 Foundations thanks!

Pre-algebra
Use a proportion to solve the problem. 34% of 83 x/100=34/83;40.96 x/100=34/83;2.822 x/83=34/100;28.22 x/83=34/100;56.44 I think it's either c or d because a and b arn't set up correctly according to how you're supposed to set up a porportion.

Pre-Algebra
Find the regular price. Round the nearest cent. Sale Price:$56.78 Percent Discount: 40% $141.95 $96.78. $79.49 $94.63

linear algebra
Suppose that the sequence x0, x1, x2... is defined by x0 = 1, x1 = 4, and xk+2 = −6xk+1−8xk for k≥0. Find a general formula for xk. Be sure to include parentheses where necessary, e.g. to distinguish 1/(2k) from 1/2k. . No idea how to go about this, please help

Algebra
Invest $2800 @ 4.7% a year (compound). How long it will take to double the amount invested to the nearest tenth of the year?

Pre algebra
Please help I’m struggling with how to find the percent of change each decade and how to predict a future price. I can’t find any examples of this lesson for help Directions: You probably see them in the news all the time—predictions about prices, jobs, stocks, and other...

Algebra
The first term in the sequence is -2 and the fifth term is -1/8 what is the common ratio

Algebra
With the origin as the center of dilation, rectangle PQRS will be dilated by a scale factor of 6x24 to form rectangle P’Q’R’S’ . 220x219 What will be the length of 23x10 ? A 3 units B 2 units C 27 units D 18 units I chose D, I read and watched a video on how to do this...

Algebra
write the equation of the line in slope-intercept form given the slope and the coordinates of the y-intercept m = 3/7;(0, 8/3) find an equation of the line described below. write the equation in slope-intercept form (solved for y) when possible. through (6, 4) and (4, 6) find ...

Algebra
Graph y=5^x and y=log_5 x on a sheet of paper using the same set of axes. Use the graph to describe the domain and range of each function. Then identify the y-intercept of each function and any asymptotes of each function. So far I have: Y=5^x : D: ?? R: y>0 Y-intercept: 1 ...

Algebra Readiness 8A
Solve the equation. 1. y-5/3 =1 A.-2 B.8 C.18 D.6 2. 6x + 29 = 5 A.-4 B.-18 C.204 D.-144 Combine like terms: 3. -21a + 16a A.-5a B.5a C.37a D.-37a Simplify the expression. 4. 9a-b-2a-10b A.-7a + 11b B.11a + 9b C.-11a + 9b D.7a - 11b 5. 5(x + 10) + x A.6x + 15 B.5x + 15 C.6x...

Algebra 1b HELP
Consider the equation y=2x2+9x+1. When x=−1, what is the value of y? This question is a 'enter correct answer'. It doesn't give me any options. But, I did the math three times already, shouldn't Y=-10?

algebra
How is dividing by a monomial similar to factoring out the GCF?

Algebra
The sum of one number and 2 times a second number is 57. The sum of the two numbers is 18

Math Algebra
Give an orthogonal vector to the plane: 7x - 5y + 8z = 9

Algebra
1. 7r – 7 = 2r + 18 (1 point) r = –5 r = 5 r = 2.2 r = 1.2 2. 2x + 12 = 18 – x (1 point) x = 3 x = 10 x = 6 x = 2 3. 8x – 3 = 15x + 18 (1 point) x = –3 x = 3 x = 2.1 x = .9 4. 6y – 6 = 4y + 16 (1 point) y = 2.2 y = –2.2 y = 11 y = 5 5. 3(x – 4) = 5(x + 2) (1 ...

algebra math, 8th grade
At a halftime show, a marching band marched in formation. The lead drummer started at a point with coordinates (-2 -5) and moved up 3 steps and 1 step right. I need to write a rule to describe the translation, and I also need to find the coordinates of the drummer's final ...

PLEASE HELP FOR MY ALGEBRA ASSIGNMENT! ANYONE!
Can someone please check my answers, it would be really helpful. Thanks to everyone that does! 1:3w-10w(1point) 13w -7w -7 7w** 2:y+1.2y+1.2z(1point) 2.4yz 1.3y+1.2z 1.2y(to the power of 2)+1.2z** 2.2y+1.2z 3:6r+r-5r(1point) 2r 1r+r** 0r 7r-5r 4:5x+2(x+6)(1point) 7x+6** 7x(to ...

Freshman Algebra 1 Honors
This is Growth and Decay 1. The U.S. populace increases at 0.91% per year. If the population in 2008 was 303,146,000 , what will it be in 2017? 2. A mechanist bought materials for about $125,000. He wants to calculate it's value in ten years. If tye materials depreciate 15% a...

Algebra 1
Write the explicit formula... 1. 0.75, 1.5, 3, 6, 12 2. 2, -3, -8, -13, -18

Algebra
Write the first five terms of the sequence below. a_n=4/n!

Algebra
Find the general term for the sequence whose first five terms are shown. e^3,e^4,e^5,e^6,e^7,...

Algebra
Find the general term for the sequence whose first five terms are shown. −1/8,1/27,−1/64,1/25,−1/216,...

Algebra I
What is the 2011th term of the arithmetic sequence −4, −1, 2, 5, . . . , where each term after the first is 3 more than the preceding term?( remember -4 is the first term of the sequence.) (I posted this before but it was the wrong answer)

Algebra
two ships leave the same port at the same time. One travels north at 12 miles per hour. The other travel west at 5 miles per hour. After four hours, how far apart are the two ships?

algebra 2
simplify 25yz/40xyz

Algebra HW HELP PLZ
Hello, I would like help on how to solve this. Determine whether the graphs of the given equations are parallel, perpendicular, or neither. y = x + 11. y = - x =2.

Algebra
I need help on how to solve equations like this (y-5)/3 =1 I don't quite understand it

Algebra 1b help
Which of the following statements are true? There is more than one correct answer choice. Select all correct answer choices. A)All monomials are polynomials. B)All polynomials have at least one monomial as a term. C)All binomials are polynomials. D)All the terms of a ...

algebra 1
1.what equation is equivalent to y-6=-12(x+4) 2. which point is located on the line represented by the equation y+4=-5(x-3)? 3.what equation represents the line that passes through the points (6,-3)and (-4, -9)?

Algebra
How does gravity relate to functions, specifically to s(t)= -1/2 gt^2 + vt + h. Provide a brief history of the projectile and its use in functions.

Algebra
16 1/4 simplify expression assume all variables represent positive numbers

Algebra
A construction worker drops a hammer from a height of 25 m. How long will it take the hammer to hit the ground? Use the formula h(t)=−4.9t62+vot+ho , where vo is the initial velocity and ho is the initial height. Round to the nearest tenth of a second. Enter your answer in ...

Algebra
I need help with this question: write an equation g(x) for when the parent function f(x) = |x| is translated one unit to the left and two units up, opening downwards, and vertically stretched by a scale factor of 5. Thank you!!!

Algebra I
What is the 2011th term of the arithmetic sequence −4, −1, 2, 5, . . . , where each term after the first is 3 more than the preceding term?( remember -4 is the first term of the sequence.)

Algebra
An unmanned aerial vehicle (UAV) carries 45 gallons of fuel. It burns fuel at a rate of 3 gph (gallons/hour) and flies at a speed of 160 mph (miles/hour). We want to fly it to a location X, fly around the area for 1 hour, and then fly it back to the launching point. How far ...

Algebra
An unmanned aerial vehicle (UAV) carries 45 gallons of fuel. It burns fuel at a rate of 3 gph (gallons/hour) and flies at a speed of 160 mph (miles/hour). We want to fly it to a location X, fly around the area for 1 hour, and then fly it back to the launching point. What is ...

Algebra
You are pulling a raft up a river. You can make 15 miles each day. Each night, while you are asleep, however, the current pushes the raft 3 miles back downstream. If you set out on Tuesday to get to a town 85 miles upstream, on which day will you arrive? Answer choices 1. ...

Algebra I
Pedro earns 7.50 dollars an hour at his job at Matrix Cinemas. If he works 20 hours this week and his employer withholds a total of 22 percent of his weekly pay for taxes and Social Security, what is his take-home pay for the week?

Algebra I
The vertical drop of a roller coaster is the largest difference in height between any high point and the next low point. The vertical drops of five roller coasters at Mandelbrot Amusement Park are shown in the table. The Parabola - 165 feet The G Force - 119 feet The Mean ...

Algebra I
The vertical drop of a roller coaster is the largest difference in height between any high point and the next low point. The vertical drops of five roller coasters at Mandelbrot Amusement Park are shown in the table. The Parabola - 165 feet The G Force - 119 feet The Mean ...

algebra
can someone plz tell me the answers for Lesson 1: Semester Review CE 2015 Algebra 1 A, Part 1 Unit 5: Semester Review and Exam, the practice

Algebra
Can I get help with these two? I cant figure them out. What is the vertex form of the equation? y = - x2 +8x – 12 Simplify the expression. (-6i)2

algebra
A man can do a certain task in 21 hours, another man can do the task in 28 hours and a boy can do the task in 48 hours. Find how long it will take to do the task if all three work.

Math
In college algebra a student earns an average grade of 86 on his homework and 75 on his quizzes. What final examination grade will give him a total average of 80 if homework 1/10 , quizzes 3/5 and the final examination 3/10?

algebra
Pablo and Linda both travelled from Tuguegarao to Manila for a convention. Pablo drove his car at an average speed of 50 km per hour, while Linda took a plane. Her trip required 1 hour, and his 9 hours. What was the average speed of Linda's plane?

algebra
admission tickets to an advanced movie screening were priced at P 200 for adult and P 150 for students. If 450 tickets were sold and the total receipts were P 14, 400. How many of each type of tickets were sold?

algebra
A can do certain task in 8 hours, B in 10 hours and C in 12 hours. How long will it take to do the task if A and B work 1 hour and then A and C finish the task?

Algebra 2
1) Find the roots of the polynomial equation. x^3-2x^2+10x+136=0 2) Use the rational root theorem to list all problem rational roots of the polynomial equation. x^3+x^2-7x-4=0. Do not find the actual roots.

Algebra 1
Write an equation that relates the number of parallelograms in the figure (n) to the perimeter of the figure (P) number 1. square has a 4 at each end and a 5 on the top of the square and one 5 on the bottom of the square number 2. 2 squares attached side by side with a number ...

Algebra I
3x =y and 4x + y =70

9th grade algebra
what is the explicit formula of NOW . 3 = Next answer: y=______blank____________ thanks!

algebra 1
How many solutions does this system have-2x+y=3 6x=9-3y A. one B. none C. infinite D. two A??

algebra
OLD MCDONALD IS GOING TO PUT A PIG PEN UP AGAINST HIS BARN. HE HAS 45 FEET OF FENCING AND WILL ONLY NEED TO MAKE 3 ADDITIONAL SIDES, AS THE BARN ACTS AS THE FOURTH SIDE.. WHAT IS THE MAXIMUM AREA THAT THE PIG PEN CAN HAVE.

Intermediate Algebra
Suppose a college bookstore buys a textbook from a publishing company and then marks up the price they paid for the book 33% and sells it to a student at the marked-up price. If the student pays $75.00 for the textbook, what did the bookstore pay for it? Round your answer to ...

algebra 1
f(x) = 10(2)^x Is this function's rate of change over the interval -1 ≤ x ≤ 2 greater or less than that of the linear function g(x)=10x + 7? -- What is this problem asking me to do and how do I do it?

algebra 1
Are y=-4x+3 and -2x+8y=5 parallel, perpendicular, or neither? I think neither?

algebra 1
Tell whether the lines for each pair of equations are parallel, perpendicular, or neither. y=-4x+3 and -2x+8y=5 A. parallel B. perpendicular C. neither I think parallel?

Algebra I
11. The equation T = 0.63s + 78 can be used to determine T, the temperature in degrees, inside an oven s seconds after the oven is turned on. Which statement relative to this equation is true? * 1 point A) Each second the temperature increases by 78 degrees. B) Each second the...

algebra 1
I need to find the slope of a line that is parallel to the x-axis, completely perpendicular. The answer choices are A. 0 B. 1 C. undefined D. infinity I'm thinking undefined?

algebra
A perfume maker wishes to blend perfume valued at $ 410 an ounce with perfume worth $ 250 an ounce to obtain a mixture of 40 ounce worth $ 300 an ounce. How much of the $ 410 perfume should he use?

algebra
How much water must be added to 60 liters of 60 percent alcohol mixture to reduce it to a mixture of 50 percent alcohol concentration? What if 30 percent alcohol mixture is added instead of water?

Algebra
Factoring Polynomials GCF and Quadratic Expressions: 5b^2k^2+25bk^2-250k^2 The answer I figured was GCF for the polynomial is 5 and the GCF for the variable is bk^2. Is this correct.

linear algebra
Find the scalar equation for the plane passing through the point P=(0, 2, −1) and containing the line L defined by x = 2+t y = 4+t z = −6+7t

Algebra
John is planning to build an arched trellis for the entrance to his botanical garden. The arch is to be in the shape of the upper half of an ellipse that is 4 feet wide at the base and 7 feet high. Find the equation for the ellipse when a rectangular coordinate system is ...

linear algebra
Let L1 be the line passing through the point P1=(9, 0, 0) with direction vector →d1=[3, 2, −2]T, and let L2 be the line passing through the point P2=(−10, 8, 4) with direction vector →d2=[3, 0, 2]T. Find the shortest distance d between these two lines, and find a point...

Algebra
Use synthetic division to find P(-3) for P(X)= x^4 - 2x^3 - 4x + 4 So I know how to do synthetic division and all, but I'm still somehow not coming up with the correct answer! Below is my work so far. Please help me interpret it so that I can get the correct answer. Thank you...

Algebra
Which equation matches the statement "The product of 3 and the difference of a number and 10 is 15?" A. 3 + (x-10)=15 B. 3x-10=15 (My answer) C. 3 (x-10) = 15 D. 3 x/10 = 15 Can you please check to see if I'm right? If I'm not explain, please and thank you

algebra
15 can be written as the difference between two positive perfect squares: 15=4²-1²=16-1 Which of the following numbers cannot be written as the difference of two positive perfect squares? 16 17 18 19 20

algebra
factor x^3 + 3x^2 + 3x + 2

Algebra
I cooler at a soccer game holds 10 apple juices and 10 orange juices if the first player chooses a juice and drinks it then the second player chooses a juice what is the probability that both players would choose orange juice

Algebra
write the equation in standard form and then graph the equation. y=2x^2-8x+11

Pre algebra
Can someone show me the steps to work this problem? X/4+1=-5

Algebra
To help open a jewelry store, Chang borrowed money from his credit union. He took out a personal, amortized loan for $45,000, at an interest rate of 6.45%, with monthly payments for a term of 8 years. For each part, do not round any intermediate computations and round your ...

algebra
you pull out the plug from the bathtub. after 30 seconds, there are 14 gallons of water left in the tub. one minute after you pull the plug, there are 9 gallons left. how many gallons of water were in the tub initially, that is before the plug was pulled? how many gallons of ...

Algebra 1
Rewrite the following equation in slope-intercept form: 8x-10y=-9 Thank you.

Algebra
Juan’s cell phone company charges $35 a month for phone service plus $0.50 for each text message. How many text messages does Juan send in a month if his bill was $52?

Algebra 1
Rewrite the following equation in slope-intercept form: -13y-6=18x Thank you.

Algebra 1
A penny is dropped from the top of a 345 foot building. Time is being measured in seconds. A.) Write an equation that models the scenario B.) How far is the penny from the ground after 2 seconds? C.) How long does it take the penny to reach the ground?

Algebra 1
Solve each equation by factoring, show all work. (x-1)^2+5=10

Algebra 1
Solve each equation by using square roots, show all work. 2x^2-5=27

Algebra 1
Solve the equation by factoring, show all work. 4x^2-7x=x

Algebra 1
Solve the equation by factoring, show all work. 25x^2-30x+9=0

Algebra 1
Solve the equation by factoring, show all work. 5x^2=80

Algebra 1
Solve the equation by factoring, show all work. x^2+8x-20=0

Algebra 1
Complete the square to solve the problem, show all work. x^2-16x=-4

Algebra 1
The roots of a quadratic equation are -1 and -5, and a=1. A.) What are the factors of the quadratic expression? B.) Write the function in standard form using function notation. C.) What is the degree of this function? D.) Identify the vertex

Algebra 1
A diver jumps from a platform 25 feet above the surface of the water. The diver's height above the water is given by the equation h(t)=-16t^2+14.5t + 25, where t is the time, in seconds, after the diver jumps. A.)When will the diver reach a height of 32 feet? B.)How long will ...

algebra
please help me with this I need to graph y=|x-3|-2 and describe the translations. translations are when you change it, I know that but how on earth do you graph something like this? please help thank you so much!

pre algebra
hi my answers ten thanks ms.sue and other touters 9 An equilateral triangle has a perimeter of 48 centimeters. If the triangle is dilated by a factor of 0.75, what is the length of each side of the new triangle? 3 10***** 12 16

algebra
Hi I'm having trouble with this question I don't understand it at all. This is the question: Suppose y varies directly with x, and y = 15 and x = 5. Write a direct variation equation that relates x and y. What is the value of y when x = 9? If somebody could help me & let me ...

Algebra
Find the final balance in an account with $660 invested at 3.5% annual simple interest for five years. A. $23.10 B. $115.50 C. $683.10 D. $775.50 My answer is $775.50, but if it's wrong can you explain to me why it is?

Algebra
Write the equation of the line in Slope-Intercept Form of the line passing through the point (1/4, - 3) with slope = 8. A) y = 8x + 3 B) y = 8x - 3 * C) y = 8x + 5 D) y = 8x - 5

Algebra
9.During the basketball season, Diane took 134 shots and made about 56% of them. a. How many shots did Diane make? b. The team made a total of 498 shots. What percent of the team’s made shots did Diane make? (1 point) 24 shots; 15.1% 753 shots; 27% 240 shots; 27% 75 shots; ...

Algebra
allan borrowed $6400 from his father to buy a car. he repaid him after 9 months with interest of 8% per year. find the total amount he repaid.

algebra- can anyone help?
What is an “opposite” factor and how is it different than simply canceling?

Algebra HELP
Is there any difference between multiplying fractions and multiplying rational functions? What is it?

Algebra
How is a complex fraction related to dividing fractions?

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Homework Help: Math