Algebra, help + check please

105,703 results, page 49

Algebra

I posted this yesterday but no one told me if my answers were correct. Can someone please check my answers. 1. Solve. –7x + 1 + 8x = x + 1 A) Identity B) No solution C) 1 D) 0 My answer: A) Identity 2.The length of one of the equal legs of an isosceles triangle is 8 cm less ...

Math(Please check)

Use the fundamental identities to simplify the expression. tan^2 Q / sec^2 Q sin^2/cos^2 / 1/cos^2 = sin^2 / cos^2 times cos^2 / 1 = The cos^2 cancels out so sin^2 is left. Is this correct?

math plz help!!!!!!

What do angles, acute angles, and complementary angles have in common??? they are all angles duh! my teacher said that that's too obvious Please check your book for the similarities. This site also has several explanations about the similarities. (Broken Link Removed)

math

Wondering the answers to these: Find the value of each of the following. Leave your answers as fractions where appropriate. [I did these myself but need to answer-check] a) log[base4](1/8) b) 10^(-10log3) c) 2log[base3](9) d) log[base3](3)^(2x) ans: a) -3/2 b)(1/3)^10 c) 4 d)...

Physics -- check answers please

I am to fill in the blanks without a word bank, my answers are in brackets. 1. A ____ diffraction pattern is unique because it has a larger central maximum. (single slit) 2. the brightest, clearest diffraction pattern is created with a _____ (barrier)

Math

integrate (x^2+8)/(x^2-5x+6) by partial fractions method. I first did long division, and came up with 1+((5x+2)/(x^2-5x+6)). Then I did partial fraction for (5x+2)/(x^2-5x+6) by going A/(x-3)+B/(x-2) and I got 17/(x-3)-12/(x-2) to take the integral of. But when I check online ...

Please check my answer(Social Studies)

In the Mayflower compact, why do the pilgrims "all due submission and obedience"? To show that they will remain sevants of God To show that they will follow the colony's rule•• To show that they will elect a colonial leader To show that they will follow the king of England

Introduction to the Criminal Justice System

There is a large round up of gang members, this is a federal case but is being supported by about 50 local officers and state troopers. I need help please, coordinating he informaiton for briefing on the jprocess at the federal court building. the briefing is to detail what ...

algebra

I need someone to check my work not sure if I'm doing this right. The design of a digital box camera maximizes the volume while keeping the sum of the dimensions at 6 inches. If the length must be 1.5 times the height, what should each dimension be? HINT: Let x represent one ...

Science 8th grade

Please check my answer thanks A woman who recently came home from a tropical vaction now has abdominal pain and diarrhea// Her blod test show an elevated eosinophil level. Which of the following organisms is most likely the cause of her illness? A Bacteria B Worm C Virus D ...

U.S.History

please check: One of the characteristics of postmodern fiction is the use of a. linear, chronological plots and standard methods of character development b. nontraditional forms that blur the boundaries between fiction and nonficitioin. c. themes advancing the idea that life ...

Grammar and Composition

please check my answers: write the plurals of the following singlular words. 1. guess : guesses 2. tongue : tongues 3. attorney-at-law : attorneys-at-law 4. theory : theories 5. leaf : leaves 6. tomato : tomatoes 7. mouse : mice 8. beach : beaches 9. piano : pianos 10. monkey...

English

Can you please help me check these school rules in case of an evacuation? 1) During an evacuation you have to (must?) 2) stay calm 3) queue with the respective openline and closeline 4) go calmly to the nearest emergency door 5)if you need, go down the stairs, always quietly 6...

cultural diversity

1. Young children's functional use of language within a work context is often observed in: A. Mainstream industrialized societies. B. Triadic interactions in Mexican-American groups. C. Rural Appalachian Black communities. D. Native American cultures............ I choose D...

English

Which of these words has the same denotative meaning a, but a different connotative meaning than, the word COPIOUS. A. meager B. abundant C. lavish ******* D. sparse An award is given every year to the student ______ has the highest grade-point average. Which of these ...

Social Studies Check Answers Please

What was a common thread in the fall of communist regimes throughout Eastern Europe? A) a decline in education and health care B) poor economies and demands for more rights C) a lack of strong leaders in communist governments D) support for military alliance with the United ...

Calculus

Would you please check my answer to make sure I did it right? Bus travel, a bus company finds that monthly costs for one particular year were given by C(t) = 100 + t^2 dollars after t months. After t months the company had P(t) =1000 +t^2 passengers per month. How fast is its ...

Chemistry (Check)

Determine the type of chemical reaction, find the limiting reagent, determine the amount of product in grams, and the amount in grams of excess reagent. Calcium nitrate is decomposed with heat to give calcium nitrite and oxygen gas. Start with 15.99g of calcium nitrate. Ca(NO3...

Science

China has implemented a campaign to reduce birth rates that includes _____________ rewards for single child families. Please check your assigned reading and post your answer. We'll be glad to help you when we see your thoughts about this subject. great? Yes. The rewards are ...

Enlglish

please check my answer thanks :) Which sentence is the hypen used correctly? 1. Molly- my beagle- loves to fun in the field. 2. She wore her hair in a closely-cropped style. 3. Jan's house was painted light-blue 4. We stayed at a first- class hotel. I picked light-blue

history

please check this President Wilson convinced the Allies to a. divide the spoils of war among the victors b. accept his plan for the League of Nations c. make Germany pay heavy war reparations d. allow Germany to keep its overseas colonies i'm stuck between b and C but i think ...

Algeblease check my answer

Posted by Annie on Monday, October 18, 2010 at 7:20pm. Choose the equivalent expression(3h^-2j^3k)^2(hj^-5k^3)^-2 The signs that look like minuses are negative signs Answers: 3h^-6j^16K^-4 9h^-2j^5j^16k^-4 9h^-6j^-4k^-4 9h^-6j^-4k^-4 Please help I'm so lost right now-Ireally ...

chem/plz/check work studying for a final

23. A 32.3 L sample of a gas at 305oC and 1.20 atm is to be cooled at constant pressure until its volume becomes 28.4L. What will be the new gas temperature? Tf = Vf*Ti/Vi Tf =28.4L x (305+273)K / 32.3L = (28.4)(578)K / 32.3 = 16415.2/32.3 Tf = 508K I got this one wrong on a ...

science review

since tomorrow is my test. Please check: seed coat- skin covering the seed to protect the inner parts Hilum- ? cotyledon- where nutritient is stored inside the seed embryo- part of a seed that grows into a plant. it include roots, leaves, and stem?

geography

Will you please check my answers? 1. What is the capital of South Carolina, the first state to withdraw from the Union before the Civil War? Columbia, South Carolina 2. Which Scandinavian country has the highest overall elevation? Norway 3. What color is used to show bodies of...

English

Can someone please help me check the grammar in the following sentences? 1) I would like to inform people about the danger (after effects?) of having a nuclear power station near our town 2) I hope you will listen to our advice. 3) Animal and plant species will be in danger.

check my science hw please.

31. Which of the following is an example of a global environmental choice? A. a student deciding to ride a bicycle to school B. a family deciding to recycle their newspapers C. a town meeting about a new nature refuge. D. nations meeting to discuss the ozone layer. I got C as ...

History

Please check! 1. What was the effect of the rise of unions in the late 1800s? a. The population in cities quickly grew.*** b. South Carolina developed many unions prior to World War I. c. Workers had more bargaining power with management. d. Living conditions in cities ...

Social Studies

What were the effects of the interstate highway system? 1.it caused decline in air 2.it connected surban areas to metropolitan areas 3.highway constructions projects created jobs 4.it enabled people to drive longer distances at faster speeds my best answer is 1 and 3 can u ...

algebra find outlier describe affect

just want to double check on 2 problems that we did -15 -12 -19 0 -20 -14 the outlier is 0 the mean with the outlier 0 is: -13.33 the mean without the outlier 0 is: -16 is this correct? next one: 4 -1 -16 2 0 -3 6 -2 for this i added positive got: 12 i added negative and got...

Math

^=exponents /= divide So I am not sure how to do this. It is an example in my book but I still don't get it. Can you work through ti so I can do my real work. (-1^2+-1^-2)^-1 (-1^2+-1^-2)^-1 = First, do work within the parentheses. -1*-1 = 1 and -1-2 = 1/(-12) = [1+(1/(-12...

Someone Please Check My Answers?!?!?

18. Which action during westward expansion had the most negative impact on the lives of slaves? A.) The Fugitive Slave Act**** B.) The Mexican-American War C.) The Treaty of Washinton D.) The Missouri Compromise 19. Which answer best describes why towns and cities were built ...

algebra

One more triangle question,please. In this triangle,the short leg is x and the longer leg is 1/2x + 11. If the hypotenuse is 2x + 1, what are the lengths of each side of this right triangle? Please show all calculations. Short leg = ______ Long leg = ___________ Hypotenuse = ...

Math (quick check plz)

hi i rearranged these terms into y=mx+b can you plz check and see if they're right? 1. 2x+5y-16=0 2. 4x-3y-6=0 3. 3x+y+2=0 1. 5y=-2x+16 2.3y=-4x+6 3. y= -3x-2 tnx ^^ On the first two, you need to divide each side by the coefficent of y. On two, what happened to the negative ...

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. ...

geometry please please please help

What is the value of x in the regular polygon below? hexagon with an interior angle value of 3x please please help and thanks in advance. :)

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

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&...

Algebra I

What is 194 times 10 to the third power written in scientific notation??? Please I am in tears trying to figure this out

algebra 1

-4/3x-3 what is the answer to this problem write the fraction for it please Are you sure you typed it right? Is it negative 4 divided by 3 times x minus 3?

ALgebra 2

Okay Im super confused about how to do this Give three points that lie on the line 3x + 2y = 6 can some one please explain it to me? thank you

pre-algebra

ok Relation between two quantities expressed as the quotient of one divided by the other? please help this is puzzling

math-algebra

sqrt27xy^3/sqrt9x I'm getting 3 answers to this. yxsqrt3y/x, ysqrt3xy/3x, and 3sqrt3y Can anyone please tell me which one is correct?

Algebra

I also needed help with this problem to: 8 divided by 4 times 2 - 7 + 3 Again could you please show me the work involved in getting the answer. Thank you.

8th Grade Algebra

Rewrite each polynomial as the product of two binomials. 1. y^2 + 6y + 9 2. 25x^2 - 10x + 1 3. 36 - y^2 Can someone please help me do these correctly?

Math - Pre Algebra

$1280 at 13% compound annually for 3 years Use the formula: B= p(1+r)n Please help me I need the answer for tommorow

algebra

I need help, i have to solve the linear solution using substitution, the equations are 4x+3=y and x=y-2 Also, please show me how you did it if possible. Thanks!

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

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