# Algebra, help + check please

104,559 results, page 49

### algebra

please help! can someone show me the steps in solving this? find all numbers for which the rational expression is undefined -16/19x

### Algebra

Please guide in solving the following. I need the steps to take...in order to solve other similar equations. 28-4y=0

### algebra

I am trying to solve 5x+y=30 - this is what I have completed so far. 5x+y=30 -5x =30-5x y= 25x so the points to plot would be -5,25 ? I do not think is correct - please help

### ALGEBRA

Without graphing, identify the slope and the y intercept for the line assoiciated with each equation or table of values: 5x + 20y = 60 x y1 0 6 1 10 2 14 3 18 4 22 5 26 6 30 X=0 PLEASE HELP ME!!!

### algebra 1

please explain to me how I work out problems such as "-2-3" to get the correct answer and show the same on a number line

### Algebra

I need help with math 116 week8 quiz I have tried everything please help me I am failing this class thank you in advance

### algebra 1

3/4 + 1/8 = then simplifly i really don't get this and i need explanation of how you did that to do the rest of my home work like how did you get this and why? please and thankyou. very much

### Algebra 1

As a team we are having trouble coming up with the same ordered pairs for the following 7x+6y=15 and -7x+y=27. We came up with (17,-8) can you show your steps please

### algebra

can somebody tell me how to solve this inequality equation? (a-2)(a-3)<0 I know the opposite was 2 and 3..but how do i determine the greater than, less than or equal to? Explain please.

### Algebra II

Complete the box to illustrate the product (x+8)(x+7) __x__________8____ | | | ? | 7x | ? | | | | |__________| ______| | | | | | | x | x^2 | ? | | | | |_________|________| Help me please! I do not know where to even begin.

### Very Important Question!!!

Please can someone tell me of any websites that can help me with algebra graphing, plotting, inequalities, and x & y intercept equations?

### Algebra

Solve the equation w=Cr^-2 for r. This is what I got so far.... w/C=r^-2 Then I think it's... ok so I don't really know. I want to put w/C=1/r^2 but the r is still not alone and I'm not sure where I'd take it from there. Please help.

### algebra

solve by the substitution method: 8m+n=47 m-5n=52 thank you having trouble completing please show all work so I can learn better

### college algebra

Solve the following equation in the real number system. Please show all of your work. 2x^3-3x^2-14x+15=0

### ALGEBRA

Convert the following credit card rate to the APR. Oregon, 1 3/4% per month Ok I came up with $23.14% is this correct. If not please help.

### Algebra 2

Write the expression as a complex number in standard form. 3-3i/4i I'm not sure about this problem, but I think the answer is -3/4i-3/4. Could anyone help me please?

### college algebra

Solve the following equation in the complex number system. Please show all of your work. 2x^5-3x^4-32x+48=0

### algebra 2

how do you find a quadratic equation if you are given the solutions such as x=2/3 and x=-4 can you work out the solution of how you got your answer please

### algebra

Can someon please explain why the point-slope formula cannot be used to find the equation of a line that is parallel to the y-axis. Thanks

### algebra

Write the slope intercept equation for the line that passes through (14,-2) and is perpendicular to 7x-10y=18.Please show work.

### Algebra (maths)

Please help: The length of a rectangle is 5m greater than twice its width, and its area is 33m^2 (the m is squared). Find the dimensions.

### algebra

i have to write a number in the block to make this true how do i get the answer for 70-30=40- please show me a example so i can complete my work

### college algebra

graph the function and state the vertex axis of symmetry, the intercepts, if any: f(x)=x^2-8x+15 Please show work so i can understand this. thank you

### algebra

write an equation for the following transformation of y=x; a vertical stretch by factor of 4. please help. can someone explain how to find answer

### algebra

Determine whether y varies directly with x. If so find the constant of variation k and write the equation. x y 7 11 8 13 9 15 10 17 Can someone please help me and explain

### Pre-Algebra Help Ms. Sue Please!!!

Given a scale factor of 2, find the coordinates for the dilation of the line segment with endpoints (–1, 2) and (3, –3). A.(–2, 4) and (6, 6) B.(2, 4) and (6, 6) C.(–2, 4) and (6, –6) D.(2, –1) and (–3, 3)

### college algebra--I really need help!!

Find the domain of the composite function FOG f(x)= 2/x-3; g(x)= 7/x please show work so I can undestand

### algebra 2

given the zeros, write a polynomial equation in factored form.zero -5,9,12 show all the step please

### Pre Algebra Help ASAP

Which of the following equations has an infinite number of solutions? a. 3x – 3 = –4x b. 2y + 4 – y = 16 c. 7x + 5 = 4x + 5 + 3x d. 6y – 2 = 2(y – 1) And please explain how I don't understand. Thanks sooooo much!!!

### Algebra

Write the expression in descending exponent form. -7y + 8y3 - y6 I think I have to combine like terms but I don't know how. Please help?

### algebra

what is the 10th term of the sequence 81,27,9 can someone please explain the steps. possible answers; 1/729 1/243 1/81 1/810

### Algebra

i try this one but graphmatica gives me different graph. Please help. Solve for y in terms of x and replace y with the function notation f(x). -2x + 5y = 9

### algebra

Quadratic equation whose roots are 5 and -5 with coefficient 3 using the letter x to represent the variable please show steps

### Algebra

Rename each of the following using the distributive property of multiplication over addition: A: ax+ bx+ 2x B: 3(a+b)+ x(a+b) and explain how you got this answer please!

### Geometry/Algebra

What is the slope-intercept form of the equation y – 7 = –5/2 (x + 4)? y – 2 = –5/2(x + 2) y + 7 = –x + 5/2 y = –4/7+ 2 y = –5/2x – 3 (I keep coming up with y=5/2(x+4)+7 2. Distribute 5/2 y=(5/2x) + 10 + 7 3. Simplify. y=(5/2)x + 17 and it is not one of the ...

### Algebra 2

(192x^2y+72x^3)-(24rxy-9rx^2) I need help factoring completely in groups and can you please show all your work thank you

### algebra

Please help, I am really having trouble understanding this problem. what are the foci of the hyperbola given by the equation 16y^2-9x^2=144

### Pre ALGEBRA

A solid with at most one base cannot be which of the following? A) cone B) cube C) pyramid D) sphere Is it A or D? MS SUE PLEASE HELP ME

### Algebra 2

I have gotten two different answers to the following problem. Can someone please let me know which answer is correct? (5 - 6)³ + 14 ÷ (2 + 5) = -1 + 14/7 = -1 + 2 = 1 or 1 + 14/7 = 1 + 2 = 3 I think it is 1. Thank you.

### Algebra

Rewrite each expression with positive exponents and simplify. X^2•x^n/x^3•x^n What does this question mean? Do I just cancel things out? Please help

### Algebra

The variable x in the expression 3+2x is replaced in succession by 1,2,3 and 4. Find the sum of the resulting numbers. Thank you for your time and please help! I am very confused.

### 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...

### Algebra

PLEASE HELP!!! Write a function rule that represents each sentence.: 1. 7 less than three times m is n. 2. 14 more than the quotient of a number t and 10 is u.

### Math Algebra

There are numbers whose sum is 50. Three time the 1st is more than twise the second.? please solve

### Algebra

What were the headlines after a 3 foot 10 inch fortuneteller escaped from jail? Its an inequality equation like 3(2x + 5)=39 and 11(4-6y) + 5(13y+ 1)=9. Please Help Me with this!

### trig, precalc, math, algebra, trigonometry

Rewrite: tan(cos^−1 (v)) as an algebraic expression in v. Please help me understand.

### Math/ Algebra

Ms. Sue please I need help with these two problems! Tell whether the given number is a solution of each question 5b+1=16; -3 14=1/3x+5;27

### algebra

someone help please im homeschooled and dont understand math at all, its my weakest subject :( If y varies inversely with x and y = 6 when x = 3, then what is y when x = 2? a.) 9 b.) 12 -im guessing this? c.) 18 d.) 36

### algebra - please help

Give an example of a function, f(x), with a domain of (0,5] and a range of [0,∞). I've came up with the following. Is this right or do I need to change something? |(1/x) + ((1/x) - 5))|

### Algebra

Which of the following is equal to (3X/5-7)+7 I used the slash mark to represent the fraction symbol. Can someone please help me figure this out? A.) 5X/3 B.) 3X/5 C.) 3X-35/5 D.) (3X-7)+35

### Algebra 2

Rewrite x^2+9 as a product using complex numbers and the polynomial identity below. a. (x+3)(x-3) b. (x+3i)(x-3i) c. (3x)(3i) d. (x+9i)(x-9i) I'm not sure if it's b or d, if I'm on the right path. Please help? Thanks

### Algebra 1

Find the GFC of the terms of the polynomial. 14z^5-70z^4+10z^3 Is the answer 14? I'm not really sure. Can someone please help?

### algebra

9.6*10^2/3.2*10^5 please evaluate this expression and show answer in both scientific notation and in standard form. Thank you so much for helping me.

### Algebra

Can you please advise if I did this problem correctly: (4X5^Y6^z)2^ x (5X9^Y12^Z)3^ (16X7^Y8^Z2^) x (125X12^Y15^z3^) 2000X19^Y23^Z5^ thank you

### Linear algebra

please help me with this question I have no idea how to solve it, thanks Suppose T is a transformation from ℝ2 to ℝ2. Find the matrix A that induces T if T is rotation by 1/6π.

### algebra HELP PLEEEEASE

Solve the following system using elimination or substitution. show your work. y = x^2 - 2x - 6 y = 4x + 10 Please explain how to do this and the answer! THANKS!

### Algebra lesson 8 unit 2

Will some one please give me the answers to these. I am suppose to finish this test asap its for connexus

### Health Law

please check my answer thanks :) Peter Jones sues Dr Bob for malpractice. The jury believes Dr Jones was guilty of malpractice but doesn't believe Peter was affected Peter is entiled to what type of damamges ? I think punitive damages

### history- civil war

What did Abraham Lincoln mean by saying slaves represented money? He meant that without the slaves the South would have no income. The more slaves they had, the more income. Please check if this is correct. Thanks.

### precalculus

will someone please check my work? find two sets of parametric equations for the given rectangular equation x+y^2=4 x=-y^2+4 y=-t^2 x=-t^2+4 x=-t^3 y=-t^3+4 Find a polar equation of an ellipse with its focus at the pole an eccentricity of e=1/4 and directrix at y=4. answer...

### English

Identify the sentence that is correctly punctuated. A. It is not always necessary; however, to check the entire set of books. B. It is not always necessary, however; to check the entire set of books. C. It is not always necessary, however, to check the entire set of books. D. ...

### English

Identify the sentence that is correctly punctuated. A. It is not always necessary; however, to check the entire set of books. B. It is not always necessary, however; to check the entire set of books. C. It is not always necessary, however, to check the entire set of books. D. ...

### English

Identify the sentence that is correctly punctuated. A. It is not always necessary; however, to check the entire set of books. B. It is not always necessary, however; to check the entire set of books. C. It is not always necessary, however, to check the entire set of books. D. ...

### English

Can you please check the following sentences? I had left them out. Thank you. 1) They fell out over something really stupid but made up a week later. (or made it up?). Her friends will never let her live it down. 2) They have been going out with each other for two months.

### Organic chemisty(Please check)

When drawing a kekule structure for CH3CH2OH(alcohol) do I leave the OH at the end just like it is (OH) or would it be shown as O-H? I know that to start of it would be -C- with an H on the top and the bottom as well as the left side and then connected to the C would be ...

### 8th Grade Math

The temperature in Toronto at noon during a winter day measured 4°C. The temperature started dropping 2° every hour. Which inequality can be used to find the number of hours, x, after which the temperature will measure below -3°C? Can you please check my answer? 4−2x&...

### 9th grade Math

(7n-1)/(8)=6 Okay, I think I add 1 to both sides, so now I have.. (7n)/(8)=7 And then, to get n by itself I divide 7 into both sides, so now I have.. n/8=1 n=1 is what I get, but I'm not sure, could someone please check this for me?

### English

1. What Don saw was a laptop. 2. I don't believe what Don said yesterday. 3. This is what Don wanted to have. 4. What Bill said was not true. 5. I don't have what he asked for. 6. That is not what Bill wanted. (Are they all grammatical? Check the sentences, please.)

### check my science hw please.

26. In the last few centuries, the number of species becoming extinct on Earth has A.decreased dramatically B. decreased slightly. C. increased slightly. D.increased dramatically I think it should be C.

### Math

What do you do to check whether a number is rational or irrational? How does finding the square root of a number compare to finding the cube root of a number? Use the number 64 in your explanation. Can someone please help me with these questions?!

### math

what is 100.00 +1.002.00 Please check your problem. 1.002.00 is not a standard way of writing a number. We don't use two periods in a number. 1002.00 1002.00 + 100.00 = 1102.00

### Math please check

Identify the amount in the following application In a shipment if 1200 parts, 60 were found to be detective. What percent of the parts were faulty? a. 60 b. 1200 c. what percent d. shipment answer: c

### math 115

could someone check my work please? 1.List the factors of each of the following numbers.66 1,11,6 2.Use the following list of numbers for exercises 13 and 14. 0, 1, 15, 19, 23, 31, 49, 55, 59, 87, 91, 97, 103, 105 15,55,105 answer 3.1,55, 1,57, 1,58,1,59,1,61,

### MATHS

Could you please check my answer? If the accident happened on the 8th of November and then Trent spent 3 weeks and 1 day in hospital, on what day did he get out of hospital? ANSWER: 30th of November

### math

The nurseryman brought six different varieties of trees to plant in six locations in the park. In how many different ways can he plant the trees Please check my answer = 720

### Spanish 1-Please check my answer

Eres mayor o menor que tu hermano? Would I say Soy mayor que tu hermano. if I was older than him? or should I say something else? Thank you

### English

Rewrite the following sentence to make it more concise: The referendum was held by the government in the month of August. The Government held a referendum in the August. Please check my work.

### Universe and the Stars-Please Check

Give 2 reasons y elliptical galaxies are considered to be older & more evolved than spiral galaxies. They are considered to be older because they have little instellar matter and because they rarely form new stars like the other galaxies do. They seem to be more evolved than ...

### math 098

I made 3 f's on my tests in math 098, do you think i need to withdraw and take math 090 instead. this is my first semester and i really want to do my best please help. math 098 is algebra math 090 is basic for college. the score were equations--52,distance problems---55, ...

### Chemistry Need help ASAP

A proposed mechanism for a reaction is: (i) A + B2 = AB2 Ea1 = 12 kJ/mol ƒ´H1 = 3 kJ/mol (ii) AB2 + C2 = ABC + BC Ea2 = 30 kJ/mol ƒ´H2 = 5.2 kJ/mol (iii) ABC + B2 = AB2 + BC Ea3 = 10 kJ/mol ƒ´H3 = -7.8 kJ/mol a) Which is the rate determining step? Explain why. (ii) It ...

### Chemistry Need help ASAP

A proposed mechanism for a reaction is: (i) A + B2 = AB2 Ea1 = 12 kJ/mol ƒ´H1 = 3 kJ/mol (ii) AB2 + C2 = ABC + BC Ea2 = 30 kJ/mol ƒ´H2 = 5.2 kJ/mol (iii) ABC + B2 = AB2 + BC Ea3 = 10 kJ/mol ƒ´H3 = -7.8 kJ/mol a) Which is the rate determining step? Explain why. (ii) It ...

### Polynomial Function

Could you please check my answers? Find an nth degree polynomial function with real coefficients satisfying the given conditions. 1. n=3; 3 and i are zeros; f(2)=20 -I got: f(x)=-4^3+12x^2-4x+12 3.n=3;4 and i zeros;f(-3)=60 -I got:f(x)=6x^3+24x^2+6x+24

### Math yeild on stocks

please check my answer thanks :) The Klien company paid a diividend of $.42 per share last year . The current selling price of the stock is $27.38. the current yeild on the stock is... my answer is 6.5%

### language please check my work

In 2000 an experimental robot performed operations on the damaged valves of ten patient's hearts. in this true: -robot is a noun -performed is a verb -damaged is a noun

### Spanish

I had to answer the questions in the negative please check 1.Hay alguien en la puerta? No, no hay nadie en la puerta. 2. Hay algo en la mesa? No, no hay nada en la mesa.

### Spanish

Please check-I had to correct the first sentence to make it correct in the second No hablé con alguien en la escuela No, hablé con nadie en la escuela.

### Spanish

Please check-I had to correct the first sentence to make it correct in the second No hablé con alguien en la escuela No, hablé con nadie en la escuela.

### math

A graph is given with the line going from (-2, 2) to (2,8). a) Find the length of this line. b) Find the midpoint of the line. c) write an equation for this line. my answers- a) 2√10 b) 0,5 c) y = 1.5x + 5 please check these answers.

### English

I left out a few sentences. Can you please check them? 1)England turned from an agricultural into an industrialized (not industrial) country. 2)The Indutrial Revolution caused an improvement in life (or in the living conditions). 3) The Luddites organized riots in order to ...

### U.S History (Please Check)

Which factor contributed most to the increased importance of literature in American culture during the 19th century? The success of major social-reform movements***** The spread of utopian communities throughout the nation The migration of European intellectuals to the United ...

### English

Can you please help me check these sentences? Some of them don't make sense at all.I tried to check some of them though. 1) Brutus has a strong sense of republican liberty 2) Brutus fears what Caesar could (would/may) become if he were crowned. 3) He is not sure about this: he...

### algebra

SEE BELOW PLEASE at******** If computing N(t) = Pa^t where P=642.035376 and a = 2.900129566 (both are stored in calculator), to what extent should the values of N(5), N(7) and N(9) be rounded? and why? Note: N(5)= 131,718 N(7)= 1,107,849 N(9)= 9,317,847 algebra - bobpursley, ...

### algebra

SEE BELOW PLEASE at******** If computing N(t) = Pa^t where P=642.035376 and a = 2.900129566 (both are stored in calculator), to what extent should the values of N(5), N(7) and N(9) be rounded? and why? Note: N(5)= 131,718 N(7)= 1,107,849 N(9)= 9,317,847 algebra - bobpursley, ...

### Algebra II

Please check my answers With two parallel lines cut by a transversal, the number of pairs of alternate interior angles is equal to the number of pairs of corresponding angles. (1 point) Always Sometimes Never *I think the answer is sometimes Opposite angles in a quadrilateral ...

### Chemistry: please help, I am stumped

When nitroglycerin (C3H5N3O9) explodes, it decomposes into the following gases: CO2, N2, NO, and H2O. If 239g of nitroglycerin explodes, what volume will the mixture of gaseous produces occupy at 1.00 atm pressure and 2678oC? a. Write a balanced equation for the reaction. b. ...

### algebra

Simplify using only positive exponents. (2r^-1s^2t^0)^-2 ---------------- 2rs Thanks in advance! Working this out: (2^-2 r^2 s^-4)/ (2 r s) = r^2/8rs^5 Note: Anything to the 0 power is equal to 1. I hope this will help. Sorry but can you help me please I seriously need it.! ...

### dwrls,math

PLEASE LOOK IN THE BOTTOM OF THIS MESSAGE...... solve for x: 3x - 2y = 6 i need help in solving this: the possible answers has to be one of these: A)2y +6 divided by 3 b)3x -6 divided by 2 C) 2 + 2y D) 2/3y + 6 but how i keep trying and i don't get non of these. For Further ...

### Math Analysis

Can someone check my answers please? Thank you! If tan x = 3/5, evaluate: 1) tan 2x 2) tan 3x ==> For #1, I got 15/8; for #2, I got -99/5. Are these answers correct?

### powers of exponents math

simplify each expression: can you check and help me please a) 3*3*3 i got: 27 b) (-2)(-2) i got: 4 c) (-125)(-125)(-125) i got: -1953125. d) -(2)(2)(2) i don't know: e) (-1) (-1) i got : 1 f) -4*4 i don't know: