# Algebra

pre-algebra
I am actually in 6th grade but I really want to learn more about pre algebra. I was given a task to solve the question of y=9x+3*7 and i don't get what to do. Should I graph? Or solve for y?

algebra
An inequality is shown below: −np − 3 ≥ 7(c − 4) Which of the following solves for n? n ≤ − the quantity 7 times c minus 31 all over p n ≤ − the quantity 7 times c minus 25 all over p---my choice n ≥ − the quantity 7 times c minus 31 all over p n ≥ − ...

algebra
Simplify using long division.Show all work. (-72-4x^2+8x^3-36x)/(x-3) Also,please solve (8b^3-6)/(2b-1) I greatly appreciate your help.

algebra 2
A committee of 3 teachers and 3 students is to be formed to judge a contest. If there are 7 students and 5 teachers to choose from, how many different committees could be formed?

algebra 2
a survey of 20 colleges found that seniors graduated with an average \$12000 in debt from student loans. The debt was normally distributed with a standard deviation of \$3200. Find the probability that a senior graduated owing more than \$16000.

Linear Algebra
Hello, could anyone help me with this excersise of linear algebra, Please? Well it's about linear transformation defined as T:V--W , the excersices give me a set of linearly independent vectors of V {v1,v2, v3... vk} and then asks : Are {W1, w2, w3, ...wk}, the linear ...

The population of a bacteria in a Petri dish doubles every 16 hours. The population of the bacteria is initially 500 organisms. How long will it take for the population of the bacteria to reach 800? Round your answer to the nearest tenth of an hour. 8.7 h 10.8 h 11.1 h 12.6 h...

Algebra
the function of y= 0.81t^2 relates the time t in seconds, that it takes a problem of length y, in feet, to swing back and forth one time. about how long would it take a 3- ft pendulum to swing back and forth one time? round to the nearest tenth.

algebra
It took Todd 11 hours to travel over pack ice from one town in the Arctic to another town 330 miles away. During the return journey, it took him 15 hours. Assume the pack ice was drifting at a constant rate, and that Todd’s snowmobile was traveling at a constant speed ...

Algebra
5x+3y=9x-7y I am having trouble in solving. My answer is ending in fractions. And do far I have gotten y=-1/7

algebra
The perimeter of a square is to be at least 15 feet, but not more that 52 feet. Find all possible values for the length of its sides.

Algebra
In R4 you are given the points P(2,2,2,2), Q(9,−5,1,3), R(6,8,−4,1) (a) Write out all possible arrows which can be formed using the points P,Q,R.

Math, Algebra,
Help! I can't understand or find out the answer, I tried but I keep getting lost! George rides a cab to work 3 days a week. He pays \$3.50 for the cab to pick him up. He pays an additional fee for each mile driven. In one week, George paid \$35.25. If he rides 11 miles each day...

Algebra 2
For the annual rate of change of +70%, find the corresponding growth or decay factor. 0.70 1.70 170 70 For the annual rate of change of -75%, find the corresponding growth or decay factor. -75 1.25 -0.75 0.25 I'm confused, please help? How can I solve this? Thanks

Math, Algebra
Can you please help me! I solved it, but I'm not sure if I'm right. ------------------------------ Paulo pays \$45.99 per month for unlimited calls, with additional charges for text messages. His bill for 4 months is \$207.96. If he sends 100 texts each month, how much is he ...

Algebra 2
Rick deposits \$1,000 into an investment account which earns 4% annually. Sally loans \$1,000 to a friend, and the friend agrees to pay her \$50 each year, and will return the \$1,000 after 10 years. Determine the amount of money each person has after 10 years. A. Rick: \$1,040; ...

Algebra
Is 3(x+4/3)-7=21 linear????

algebra
Please simplify this expression,if possible. State the excluded values,if any. 5x-5 / 10x^2 -25x + 15. thank you for your time.

algebra
Please simplify using long division (showing all work) : (8b^3 -6) / (2b-1). Thank you.

math algebra
Problem Page Brian rented a truck for one day. There was a base fee of \$15.99 , and there was an additional charge of 93 cents for each mile driven. Brian had to pay \$259.65 when he returned the truck. For how many miles did he drive the truck?

Algebra
Shirts with the a school's mascot were printed, and the table shows the number of people who bought them the first, second, third, and fourth weeks after their release. Which graph could represent the data shown in the table? Weeks | Number of sales 1 |22 2 |50 3 |62 4 |75 a. ...

Algebra
What is the equation, in standard form, of a parabola that models the values in the table x (-2,0,4) F(x) (2.5,1.5,-60.5)

algebra
I'm sorry about the carelessness of my first question. The correction should read: y=x^2-4x -32.Use this function to find the x-intercepts by factoring;then show how the value of the discriminant supports your conclusion(s). I'll try to be more careful

Algebra
Find the sum of the odd integers from 1 through 49.

algebra
y=x^2 -4x-32. Use this function to describe how the axis of symmetry relates to the x-intercepts. Thanks for your help and time.

algebra
Use this function and find the x-intercepts by factoring; then show how the value of the discriminant supports your conclusion(s). Thank you for all your help.

algebra
Find the lateral surface of a cuboid whose length, breadth and height are in a ratio of 4:3;2 and volume of the cuboid is 5184 cubic metre.

algebra
Twice Bill's age plus 2 is equal to 4 times Bill's age less 46. Let Bill's age =b

algebra
Can someone show me the complete solution to this word problem? William,a logistician,needs to route a freight train that is 20 feet at its tallest point and 10 feet at its widest point within 3 days. the most direct path includes a single-track tunnel that needs 24 hour ...

algebra 2
What is the s9mplermform of the radical expression? sqrt36g^6 my answer is 6lg^3l

Can you explain how to find a sub 1 in the following problem? 1. Given 2 terms in an arithmetic sequence, find the recursive formula. a sub 18 = 3362 , a sub 38 = 7362 Steps: a. Find difference: (7632 - 3362)/(38 - 18) = 4000/20 = 200 b. plug into recursive formula: a sub n = ...

algebra
your class is planning a field trip to the amusement park. childrens tickets cost 20 and adult tickets cost 25, the total amount of money available is 1000.let c represent the number of childrens tickets and a represent the number os adult tickets. write the equation for the ...

algebra
Y=X^2 -4x -32. Use this function and identify the minimum. Thank you very much.

algebra
y=x^2 -4x -32. Use this function and identify the axis of symmetry and the vertex. Thank you.

algebra
Y=X^2 -4x -32. Use this function and determine whether the parabola opens up or down; explain your conclusion. Thank you.

Algebra
The sum of two numbers is 62, and their difference is 12. What are the numbers? I need any help. Thank you

algebra sir reiny sir steve&bob damon help
plz help me sir steve 3x^2=x^x find x step plz too hard

Algebra - Solving Systems by Elmination
3x + 8y = -5 -2x + 2y = 18

Algebra
debbie anderson cuts a piece of wood measuring 3 3/8 inches into two equal pieces. How long is each piece?

algebra
I want to visit a friend that lives 200 miles away. Gas is \$4 a gallon. My car gets 50 miles every 2 gallons of gas. How can I solve this using an literal equation?

Algebra
Solve the system by substitution. State whether the system has one solution. Infinite solutions, or no solution. 2x+y=10 x-3y=-2 I believe that the answer is x=4 y=2

Algebra
If a positive two-digit integer is divided by the sum of its digits, the quotient is 2 with a remainder of 2. What is the two-digit integer?

algebra
Can someone help me solve this story problem? Tom is buying a 42 inch 1080 television on sale for 40% off. If the aspect ratio is 16:9 and the frame around the screen is 1 inch wide,will it fit in an entertainment center with an opening that is 36 inches by 24 inches? Show ...

Algebra
X is a number.It is divided by 3,and 5 is subtracted from the result.The new result is then multiplied by 7.If the final answer is 28,what number is X?

Algebra 1
Simplify: (X^2 - 9)(7x + 21) / (x- 3)(x^2 + 6x + 9) =

Algebra
If a hen and a half lay an egg and a half a day and a half, then how long will three hens take to lay 12 eggs??????

Algebra 1
Combine the following into a single expression of the form a x sqrt b. Sqrt 6 + Sqrt 54 + Sqrt 150

Algebra 8th
For each sequence defined recursively, write the first few terms. Then use the terms to write an explicit equation. a(1)=17 a(n+1)=a(n)-3 And a(1) =20. a(n+1)=1/2*a(n)

Algebra 1
Assuming p>0, what is the positive root of x^2 - 2px - 8p^2 = 0, in terms of p?

Algebra 1
The average of five consecutive integers is 13. One of the integers is removed and the sum of the remaining integers is 53. What is the value of the integer that was removed??

algebra
Solve by completing the square;round to the nearest hundredth if necessary. x^2-3x=4 Thanks so much.

Algebra 2
The dimensions in inches of a shipping box can be expressed as width x, length x + 1, and height x - 4. The volume is 84 ft^3. Find the dimensions of the box in feet. 1, 1, 4 2, 2, 21 2, 6, 7 3, 4, 7 Please help? If somebody can help put this into an equation for me, I can do ...

Algebra 1
What is c if: a+b+c = 77, a-c = b+c, and c = b/2

algebra
Use square roots to solve these equations. Round to the nearest hundredth if necessary. 5x^2 + 536 = 651. Also,problem 2: 3z^2 + 52 = -56

algebra
please show this exact problem completely factored: w^2 -15w +54 . I appreciate your help.

algebra
For Beth to get an A in her Spanish course she must earn a total of 360 points in 4 test each worth 100 points. If she got scores of 87, 96 and 91 on the first 3 test, determine using an inequality those scores she could make on the fourth test to get an A.

algebra
Completely factor: 3j^3 -51j^2 +210j Thank you very much.

algebra
Completely factor : 45g^2 + 12g -9 Thank you

algebra
Completely factor : w^2 - 15w + 54 Thank you.

pre-algebra
6 blank 3 divided by 9 blank 4 + 4=12 what are the blanks

algebra story problems
A bird sitting 16 feet above the ground in an apple tree dislodges an apple.After how many seconds does the apple land on the ground? (assume no branches interfere with its fall.) Thank you.

algebra word problem
A kicker punts a football from 3 feet above the ground with an initial velocity of 47 feet per second.1) write an equation that gives the height (in feet) of the football as a function of the time (in seconds) since it was punted. 2) Find the height (in feet) of the football 2...

Algebra
An investment of ​\$54,000 was made by a business club.The investment was split into three parts and lasted for one year.The first part of the investment earned​ 8% interest, the second​ 6%, and the third​ 9%. Total interest from the investments was \$ 4260.  The ...

algebra
Gary watches at most 2 hours of television on a weekday. inequality:

Algebra
To Which subset of real numbers does the number 1/5 belong? A irrational numbers B rational numbers c whole numbers, integers, rational number***** d whole numbers, natural numbers, integers

Algebra
If the father's age in 3 years will be twice the son's age 4 years ago, and if the sum of their ages now is 106, how old is the father now?

Algebra
\$6300 is​ invested, part of it at 11​% and part of it at 8​%. For a certain​ year, the total yield is ​\$nbsp 597.00 . How much was invested at each​ rate? x+y=6300(-11) 0.11x+ 0.08y=597(100) ............................ 11x+8y=59700 -11x−11y=−69300...

algebra
P +4- 2 (p-10)> 0 Please check, it was marked wrong P+4 -2p +20 > 0 -p+ 24> 0 -p >-24 P > 24 Answer choices are 29, 26, 24, 22 Please explain thank you

Algebra
Barb is making a bead necklace. She strings 1 white bead, then 3 blue beads, then 1 white bead, and so on.Write the numbers for the first eight beads that are white.What is the rule for the pattern

Algebra 2
I'm stuck could anyone explain or tell me what to do please? The number of trucks registered in a city each year increases by 10% each year. Initially there were 100 trucks registered. Write a function T(r) that represents the number of trucks registered in the city in year r...

Algebra (math)
The graph represents function 1 and the equation represents function 2: A graph with numbers 0 to 4 on the x-axis and y-axis at increments of 1. A horizontal straight line is drawn joining the ordered pairs 0, 3 and 4, 3. Function 2 y = 4x + 1 How much more is the rate of ...

algebra
The sum of 2 consecutive integers is at most the difference between nine times the smaller and 5 times the large.

Algebra
I am totally stuck on this question, can some one help? Come up with and describe two scenarios: one that models a direct variation situation and one that models an inverse variation situation. Do not state explicitly which scenario is which, but provide at least four data ...

Algebra
23 is subtracted from 4 times of a number the result is equal to 1/3 of 54.Find the number?

Physics, math, algebra
How long will it take a sled to reach the bottom of a hill, if it accelerates at 5.60m/s^2 and has a final velocity at the bottom of the hill of 42.3km/h?

algebra(difference of two squares)
The positive difference between two consecutive odd numbers is 336. compute the larger of the two squares. But my solution was(n+1)^2-n^2=336. And. =2n+1=336. ,2n=335 where. I had n=335/2. Here igot stuck on solving the larger of the two squares. And unknown if my answer is ...

algebra
The difference betweentwo consecutive odd numbers is 336 .what is the larger of the two squares

algebra
Please show me how to COMPLETELY factor this expression. z^2 + 11z -42 I appreciate your generous help,thank you.

algebra
Please COMPLETELY factor this expression. t^2 + 4tv + 4v^2 Thank you for helping me.

Algebra
If I were to make an equation so that the left side were reciprocal function and the right side were an absolute value function then the equation would be guaranteed to have at least one solution. Why?

Algebra
Create an equation where the left side is a cubic function and the right side is a cube root function. Make it so that the equation has exactly one solution.

Algebra
Create an equation where the left side is a linear function and the right side is a square root function. Make it so that the equation has exactly two solutions.

Algebra
Two graph never intersect. As such, the equation has no solutions. Create an equation where the left side is a linear function and the right side is a square root function. Make it so that the equation has exactly one solution.

Algebra
If x^2y^2+x^3y^4=(3xy)^2,then xy^2= a. 1.5 b.4 c.8 d.16 e.64

algebra
Could you please help? What are the solutions of the compound inequality? 2x - 2 < - 12 or 2x+3 > 7 Is this one x < - 5 or x> 2 2x -1/3 +3 <= -4. Or 8x-2/2 -1 >= 6. This one is 2x-1 divided by 3 plus 3 is less than or equal to - 4 or 8x -2 divided by 2 minus ...

Algebra
Use multiplying by 1 to find an expression equivalent to 15 Over 19 with a denominator of 19 z19z. The equivalent expression is ..........

Algebra
The peak of California's Mount Whitney stands 14,495 feet above sea level. What is the integer that best expresses the given​ number?

Algebra
Use a commutative law to find an equivalent expression. st An equivalent expression of st is...........

Algebra
Describe the situation from the viewpoint of each person. During a game​, a person wins 450 points​, and another person loses 250 points. Which real number corresponds to ​'wins 450 pointspoints​'? Which real number corresponds to ​'loses 250 pointspoints​'?

Algebra
The sum of n tearm of two arithmetic progressions are in the ratio (7n+1):(4n+27).Find the ratio of their 11th terms

Algebra
In a two-digit number, the tens digit is two less than the units digit. If the digits are reversed, the sum of the reversed number and the original number is 154. Find the original number.

Algebra
A jar of change has 28 coins which is worth \$2.60. If the jar only has nickels and dimes, how many of each type are in the jar?

math, algebra
Members at a yoga school pay \$7 per class plus a one-time \$120 membership fee. Non-members pay \$11 per class. How many classes would a member have to take to save money compared to taking classes as a non-member? I'm struggling with this problem a bit, and so are my friends. I...

algebra
Graph the system of inequalities (shade each half-plane solution,not only the overall solution). y<= 3/2x+3 2x + y<10 y>-1

algebra
Please check my system of linear equations using any algebraic method. Show the check,if possible. 8x-6y=12 / 12x-9y=18 8x-6y=12 (eq.1) 12x-9y=18 (eq.2) 4x-3y=6 (eq.1) 4x-3y=6 (eq.2) y=4x-6 / 3 Check: Thank you for your help.

algebra
How do I completely factor the following expression: w^2 -15 + 54 Thank you.

algebra
Please completely factor the expression: 3j^3 -51j^2 + 210j I greatly appreciate your help.

algebra
Using factoring and zero-product property,please solve the following: 9r^2 -30r +21=-4 Thanks very much.

algebra
Using factoring and zero-product property solve: 4a^2 -10a +6=0 Thank's a lot.

algebra
How do I completely factor this expression? 256z^2 -4 -192z^2 +3 I appreciate your help.