Algebra, help + check please

104,801 results, page 63

math (please check answer)

Which of the following types of information is NOT suited for display on a scatter plot? 1. relationship between age and number of books read in a year*** 2. relationship between height and shoe size 3. relationship between calories consumed and body weight 4. relationship ...

Math, please check work

A bag contains 7 red marbles, 2 blue marbles, and 1 green marble. If a marble is selected at random, what is the probability of choosing a marble that is not blue? 7+2+1=10 There are two blue marbles So is the probability 1/5?

algebra addistion

can you check my answers |-13| - |9| i got 4 |15| - |-3| i got 12 |-12| + |-3| i got : 15 |-31| + |-12| i got: 43 +9 + (+7) i got: 16 -21 18 + 21 i got : 39 -5 +(-13) i got: 7 -18 + (-3) i got: -21 -2 + (+17) i got: 15 15 + (-9) i got: 6 5 + 21 i got 26 -10 + 3 i got: -7

chemistry

Can someone please check my work on this problem? That'd be great!: What is the balanced equation for the chemical change of adding Na2CO3 to CuCl2, therefore making CuCO3 form? CuCl2+Na2CO3-->CuCO3+2NaCl right thank you fill in the blanks! Nuclear reactions involve the ...

Geography

I can't find this out anywhere!!! What was Langports original function? Like, what was its reason for first being built? someone help please. Thanx Langport in Somerset was originally a market town. Check this site for more information. http://www.langport.org.uk/

U.S. History

please check if my answer is correct Which was a provision of the Missouri Compromise of 1820 a. Missouri and Maine were denied statehood b. Western territories north of Missouri's southern border were closed to slavery c. Slavery could not spread to any western lands d. Free ...

English

Is the following sentence grammatically correct, or do I need to make it into two sentences? Thanks. I think that explains a lot, don't you? Also, will you please check my grammar on these two items? I think he enjoyed the fact that his prank had a two for the price of one ...

Science

Ms. Sue PLEASE check my answers! 1. Which of the following is not part of the theory of evolution? a. Organisms tend to produce more offspring than can survive to reproductive age. b. Organisms can acquire changes during their lifetime that can help their species survive. c. ...

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 ...

physics please please please please please

a block of mass 2.50 kg rests on a ramp. if the coefficient of static friction between the block and ramp is 0.350, what maximum angle can the ramp make with the horizontal before the block starts to slip down?

Math Check

Hi! Can someone check my answers for this question? Thanks!! Directions: Look for the probability for an experiment that deals with the drawing of two marbles (without replacement) from a bag containing one green, two yellow, and three red marbles. Put the final answer in a/b ...

Math Check

Hi! Can someone check my answers for this question? Thanks!! Directions: Look for the probability for an experiment that deals with the drawing of two marbles (without replacement) from a bag containing one green, two yellow, and three red marbles. Put the final answer in a/b ...

english

Can someone check my work for me, please. 1.Yesterday he was very busy since he had been fixing the TV from noon. 2. He left for the day before I arrived. He had been waiting for me almost a week. To regret, I couldn't come earlier. 3. When Anna entered the living room, ...

Math

Can you please check these problems? 1. 5ã28+2ã45=_____ I got 10ã7+6ã5 2. -4ã75+3ã147=_____ I got 1ã21 3. -11ã8-7ã12=______ I got -11ã8-14ã3 4. ã150-5ã96 I got -15ã6 5. 9ã13-6ã11+ã13=___ I got -6ã11+10ã13

Math

If it costs $75 to buy 3 video games, how much money will Jordan need if he wants to buy 12 video games? $75.00/3 video games=$25.00 for 1 video game $25.00 x 12 video games=$300.00 for 12 video games Can you please double check my answer to see if I got it correct. Thank you

For Hellpp - Algebra 2

I removed your original post because of an inappropriate name. Please -- in the future do not string out your name across the page. _________________________________ Homework Help Forum: Algebra 2 Answer this Question | Responses Posted by ...

Quick english help

Please check each of my answers from these short stories in "The House On Mango Street". Please correct me if I'm wrong! "Meme Ortiz" 2. What does the fact that Meme and his dog both have two names reveal about the neighborhood? A. People are desperately poor so they use their...

check my set up please, trig

Sarah holds the end of her kite string 5 feet off the ground. The kite string makes a 43 degree angle of elevation with the horizontal and the kite is 105 ft. off the ground. How long is the kite string to the nearest tenth of a foot? cos43=100/x ?

E.L.A. PLEASE CHECK!

Which choice best describes the underlined word or words in each sentence? The ancient Sumerians, Egyptians, and Chinese each developed a unique system of writing. Underlined is: Sumerians Egyptians Chinese A- simple subject B- compound subject C- complete subject D- none of ...

Math

The total weight of the shape blocks on both sides of Kim's pan balance equals 30 grams. Circles weigh 5 grams, squares weigh 10 grams, and triangles weigh 3 grams. The right side has circle and square. How many triangles are on the left side? A) 5 B) 4 C) 6 D) 10 Answer is 5...

Algebra 2

Can someone check my answers? 1. Convert 13pi/30 to degree measure. 78° 2. Find the distance between (4,4) and (8,7). 5 3. What is the vertex of the parabola y = (x + 8)^2 - 2? (-8,-2) 4. The graph of y = 6(x - 8)^2 + 1 open downward. False. 5. An angle that measures pi ...

Algebra

I need help on this one too, please. Solve for X. 3x-2y=6 I got x=6+2y/3. My question is this: Can this be reduced down to x=2+2y? You really need to use parentheses here. x = (6+2y)/3 or you might want to show it as 2+(2y/3) or 2+(2/3)y

algebra

Could someone please help me to slove this question. (2y/x^2)+(7/x(x-3)) get a common denominator (x^2*x*(x-3)), combine the fractions. Notice there is a y in the first numerator, and no y's in the denominator. Consequently, there will not be a lot of simplification on this.

algebra...please help me!

with the decimal that equals pi....(3.14....) until the 2 hundreth decimal place..how does the cumulative frequency column be used for a project like this one..???? the number is...(pi) 3....

algebra

I am given the perimeter of the rectangle. It is 96cm. The length is 3 times the width. What are the measurements of the 4 sides of the rectangle? I need the formula please.The answer is 12 and 36, I think.

algebra

let the function by y = ax^2 + bx + c and sub in (1,2),(2,7), and (3,15) this gives you 3 equations in 3 unknowns which solve quite nicely to a = 3/2 b = 1/2 c = 0 so the function is y = (3/2)x^2 + x/2 or y = (3x^2 + x)/2 can somone please explain to me how this person got a/b...

Pre-Algebra

I need help with this one question; can someone please help? Give any three ordered pairs that are solutions of the equation: 2x - 3y= 12 I already have one (9,2) Thanks! -MC

Algebra

Please Simplify: (root5 a^7/2)^4 a^3/a^8 So confused, I tried figuring this out but need some help tracing the steps. I would appreciate some feedback! Thanks!

Algebra II

The answer for (7+5i)+(-4+2i) is 3+7i. But I got -38-6i. I combined -28 and 10i^2 to get -38, and I combined -20i and 14i to get -6il So all together this was -28+-6i+-10, which resulted in -38-6i. Could you please tell me where I went wrong?

Pre-Algebra B

The selling price of a bicycle that had sold for $220 last year was increased by 15%. What is the new price? Please answer within 5-10 minutes.

algebra

Solve the following equation: k2 + 4k = 0 By factoring and By using the quadratic formula Can someone please help me to understand how to this problem...I do not understand the steps to get the correct answer. Thanks!!!

Algebra

Is this equation true or false? Why? 20-4ã2=16ã2 With like radicands should I add the 4 to the other side of the equation? I'm really lost. Can someone please explain this to me?

Algebra-Another question

Evaluate 4log(4)8 Possible answers are: 4 0 8 1 Where do I start-I don't have an example to follow? Please give me a direction do I evaluate log(4)8 first

MATH-ALGEBRA

What's the slope-intercept equation of line which is parallel to y = 2/5x-3 and passes through point (0,5) A. y = -5/2x - 3 B. y = -5/2x + 5 C. y = 2/5x + 3 D. y = 2/5x + 5 Its D, but how do u figure that out? please explain step by step.

pre-algebra

Find the slope of the line containing the given pairs of points. If the line is undefined, state so. Please show all of your work. (-5, -2) and (-7, -2)

Algebra

How far in miles is a line of 1,000,000 pennies. Please show chart with 5 instances. Define a variable and write an algebraic expression.

Math,Word problems(algebra)

Kai Ling has 4m kg of flour.She bought 2 more packets of flour, each of mass m kg.How much does she has now in terms of m? Please help me

algebra

Find the slope of the line containing the given pair of points. If the line is undefined, state so. Please be sure to show all of your work. (1, 2) and (9, 12)

College Algebra

Verify that the function f and g, are inverses of each other by showing that f(g(x))=x and g(f(x))=x. Graph both the functions on the same graph. Please show all of your work. f(x)=-7/x-4 g(x)=4x-7/x

Algebra/%%$#!!!

F(x)=1/4 (x+7)^2+7 Looking for the vertex and the max or min for the above..? f(1/2)=19/2, did I find the vertex? (6x^2-5) ( x^7-6) using FOIL. I came up with 6x^9-5x^7-36x^2+30 please tell me I'm right if not what the heck did I do? Thanks...

Algebra

Solve the inequality and express the solution in terms of intervals whenever possible. | x+3 | < 0.01 I know the answer is : (-3.01,-2.99) Please show me how to solve this type of math problem.

algebra

Solve the formula for the variable given. P = r-c/n solve for c. (business) I have worked this problem so many times I'm getting confused. please help. Thanking you in advance

Algebra

Calculate elements the listed element for the product matrix. matrix[1, 2, -3_3, 4, 0_-9, 7, 8_9, 3, 2]Xmatrix[11, 7, 9, -5_5, -9, 1, 6_4, 2, -3, -8] Can someone please help me with this. I'm desperate.

Algebra help PLEASE? first and ONLY question

Which of the images above represents a proof pf the Pythagorean Theorem? Explain your choice, and then explain how the figure proves the PT.

Algebra

Find the coordinates of the midpoint of the hypotenuse of the right triangle whose vertices are A (1,1) B (5,2) C (4,6) and show that it is equidistant of each of the vertices..... And can you please tell me how to prove it in drawing....

algebra/please can you ck my answers

Tell what the output value is for the function machine for the given values. log 16.9=1.23 log2^152=9 log2^1=0 log0.046=1.34 thank you

Algebra ll

Please help!! I do not understand any of this!! Information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zeros of f. Degree 4; zeros: 8,-6-i

Algebra ll

Please help!! I do not understand any of this!! Information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zeros of f. Degree 3; zeros: 8, -6-i

Algebra

I found three points of the equation x-2y=b which were (4, -2) (0,-4)(-4,-6) But the question further asks to convert the equation of the new line to standard form ax+by=c. I'm so confused. Can anyone please help?

Algebra

I've tried figuring this one out by grouping and by moving some terms around, but I still cant figure it out. Help me please! factor completely ax+bx-2a-2b

Algebra 2

Describe an infinite geometric series with a beginning value of 2 that converges to 10. What are the first 4 terms of the series? Last question and my mind is fried, can someone please help me? Thanks

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

Solve by using your knowledge of the Distributive Property and combining like terms. 1. 5x-(9x-10)=34 -4x-10=34 -4x=44 X=-11 Did I solve this correctly? If not can someone please show me how to get the correct answer?

Algebra

As cars passed a checkpoint, the following speeds were clocked and recorded. Speed (mph): 55 62 61 54 68 72 59 61 70 what's the range? , 1st quartile and 3rd quartile? please.

trig/math

3. Draw vectors u and v tail-to-tail so that they make a è-degree angle. Draw the vector u − v, the third side of the triangle, and check to see that it points in the right direction. (a) Solve for cos è using the SSS version of the Law of Cosines, expressing all ...

Spanish-please check

had to make up questions using the past tense of decir,querer, hacer 1. ¿Qué dijo el doctor ayer? 2. ¿Qué hicieron los profesores ayer en la escuela? 3. ¿Quisiste mirar la pelicula ayer? 4.Tú quisiste un coche nuevo? 5. ¿Tú quiciste la tarea ayer? 6.¿Tú quisiste ...

geography

Will you please check my answers? 1. The largest lake in the world is located near the border of Asia and Europe. What is its name? Caspian Sea 2. What is the name of the country that shares the Iberian Peninsula with Spain? Portugal 3. Name the Great Lakes that border Canada...

Physics

A. Suppose you had an object that you suspected had a mass of one half of one of the washer+paperclip units. (In the rest of this problem we’ll call that a “washerclip.”) Describe how you could use the balance you used in tutorial and a single washerclip to check this. B...

Algebra 1

4n-2+7n=20 can you please tell me step by step how to do this

algebra

2t+1=3 it one of the following, but which one? A) 1 B) -1 C) 2 D) -2 please help Me!!!!!

algebra

10x^9-10x^7+25x^3/5x^3 Please Help.

Algebra

Could you please explain how to do 3/2(z+5)-1/4(z+24)=0, step-by-step? Thank you!!!

algebra

Please Justify. 8=2x-3 8+3=2x-3+3 11=2x 11/2=2x/2 5 1/2=x Show me how to justify

algebra

2(a-4)+15=13 Please show step by step

Algebra

"Are the lines y=2x-6 and the lines and 2y=4x+12 parallel ?" Help me please.

algebra 2

SOLVE= log[6](x+3)+log[6](x+2)<2 A)-6<x<7 B)-6<x<2 C)3<x<7 D)-2<x<3 PLEASE HELP!!

Algebra help please

Let f(x) = -5x - 4 and g(x) = 6x - 7. Find f(x) + g(x) A. x + 3 B. x - 11 C. -11x = 3b D. -11x - 11 C?

Algebra

factor x^3-5x-2x^2+10 factor x^2-2xy+y^2-16 Please help with these. Thank you!

Algebra

0.04^(3-sqrt(3x+2))=25*5^(sqrt(3x+2)) Please help ASAP

Algebra : Please Help?

3. How to graph f(x)=-3x^2-1. 4. How to graph f(x)=-2\sqrt{x}.

Algebra : Please Help?

3. How to graph f(x)=-3x^2-1. 4. How to graph f(x)=-2\sqrt{x}.

English-Essay Writing

If someone could check this for me please. I'm writing an essay on To Kill a Mockingbird and have to have 3 conjunctives that follow the pattern-semi colon, conjunctive adverb, comma. I'm hoping I don't have to write the whole sentence so here goes: be killed; there, we are ...

Check this please

Avondale and Newtown are 45 miles apart. How many inches is this on a map with a scale 1inch=20miles? I set up a proportion: in/miles= 1/20=n/45 n= 2 and 1/4 in on this map 2 1/4 inches is correct. 1 inch = 20 miles 2 inches = 40 miles 1/4 inch = 5 miles =) Thank you for ...

Math: please check

There are 30 fish in a pond. We know that 13 of these fish are males, 4 of these males are salmon, and there are 8 salmon in the pond. What is the probability that a randomly chosen fish is a salmon, given that it is a male? I think they are just asking about salmon and trying...

Please Check My Math Answers. Thanks!

Can someone please be kind enough to check my answers? Thanks! :) I put stars by my answers. 1. Calculate the slant height for the given cone. Round to the nearest tenth. Diameter= 8cm Height= 9cm a. 10.2 cm b. 11.4 cm c. 9.8 cm *** d. 12.0 cm 2. Calculate the slant height for...

algebra. someone please explain to me please!

Alvin can go upstream at a rate of 6 miles per hour and downstream at a rate of 12 miles per hour. One day while Alvin was on the river, he received a call telling him he needs to turn around and come home. So he turned around and went back to his starting point. If his entire...

English

Can you please check these last two for me. Thank You and have a great evening. The tension that Irene has towards Bellew shows that she does not appreciate the fact that he is an racist individual, who does not take other people's feelings into perspective when he talks. When...

Algebra/ please help!!!!

WAGE---$ 17.00-an hour---------ANUALLY---28,285.28 APARTMENT VALUE 17.34hrs/pay period towards an apartment value of $934/month----ANUALLY---$11,208----TOTAL-------$39,493.28. My question is: first of all, I get, 17X40= $2,720-not 28,285.28, above. ALSO, I am trying to break ...

Physics (please check!)

A positively charged light metal ball is suspended between two oppositely charged metal plates on an insulating thread as shown below. After being charged once, the plates are disconnected from the battery. Describe the behavior of the ball. Would the ball remain in the center?

grammar

please correct this sentence: A)HOPEFULLY, we B)WILL BE able to complete the building C)BEFORE the rainy seas sets D)IN. E)NO ERROR i already know the answer is A, but i'm not sure why. can u please explain, thanks. I believe the writer means when the "rainy season sets in." ...

maths-check my answers

Please check my answers 1) make c the subject of the formula a=b+cd----------b-a/d=c 2) make t the subject of the formula u=v+2t----------u-v/2=t 3) make n the subject of the formula m=3n+5--------m-5/3=n 4) make z the subject of the formula x=3y+z--------x-3y=z 5a) make t the...

Agility Training

Please check my answer thanks :) The organization that excludes mixed breeds from its agility competition is the A. United Kennel Club. B. American Kennel Club. C. North American Dog Agility Council. D. Agility Association of Canada My answer is B

Math - Exponential

Please check if my answers are correct! Thank you. Differentiate f(t) = √(36 ln(t) + 5t) f'(t) = (1/2) * (36 ln(t) + 5t)^-1/2 * (36/t + 5) f'(t) = (1/2)* (36/t + 5)/((36 ln(t) + 5t)^1/2 f'(t) = (36 + 5t) / (2t √(36lnt + 5t)) ----- Find the largest & smallest values...

language ms.sue could u please check these thanks

suffixes empty-empties monkey-monkeys security-securities holiday-holidays pity-pities friendly-i don't know this one strawberry-strawberries delay-delays birthday-birthdays say-says vocabulary-vocabularies conspiracy-conspiracies memory-memories candy-candys story-stories ...

Art

Could you please check these few sentences. Thank you. 1) I'm forwarding you the link to the European Etwinning certificate of quality. Online projects carried out between two or more European schools can be eligible to receive both a national (in 2) Our participating students...

Latin

Check my translations please! 1. Aeneas was ordering the men to run. Aeneas viros currere iubebat. 2. The pretty queen persuades the Trojan to stay. Regina pulchra Troianum manēre persuadet. 3. A tyrant is not able to give freedom to the people. Tyranni populo liberitatem...

History/Civics

Which quote from the Declaration of Independence shows that the colonists were influenced by John Locke's idea of natural rights? "We hold these truths to be self-evident, that all men are created equal."****** "Governments long established should not be changed for light and ...

Mathematics

Can anyone check my answers please True or false 927 is divisible by 3 and 9 true 13,012 is divisible by 9 false 7,434 is divisible by 6 false 2,064 is divisible by 2,4,and8 false 96,240 is divisible by 2,3,5, and 10 false Am I right?

Mathematics

Can anyone check my answers please True or false 927 is divisible by 3 and 9 true 13,012 is divisible by 9 false 7,434 is divisible by 6 true 2,064 is divisible by 2,4,and8 true 96,240 is divisible by 2,3,5, and 10 true Am I right?

Algebra

Please help me solve this problem the kinetic energy (k) energy of a moving object with varies jointy with it mass (m) and the squareo of its velocity (v). If an object has an mass of 22.5 kilograms and moving with a velocity of 20 meters per secomd has a kinetic energy energy...

French

Could you please check these thanks god bless. Directions: Describe your favorite outfit, including each item of clothing and its color. Ma l'ensemble favorite est un aeropostale t-shirt rose, un short bleu, et des sandales rose. Question: When I put un t-shirt, and un short ...

Math (please check my answer!!)

openstudy(.)com/updates/attachments/514a5d2ae4b05e69bfac38d2-mimisilly-1363828099165-ikk.png The dashed triangle is a dilation image of the solid triangle with the center at the origin. Is the dilation a enlargement or reduction? Find the scale factor. I know this is a ...

6 grade math

I need help in the setup teacher wants a guess and check table for the word problem. Just the set up I need help on . Please a wood board 156 cm long is cut into three pieces.the two longer pieces are the same length and are 15 cm longer than the shortest piece. How long are ...

English

I have to add prepositional phrases to the following sentences. Please check to see if correct. 1.The carpenter repaired the roof. 2.The coach explained the play. 1.The carpenter repaired the roof in the house. 2.The coach down the street explained the play.

Chemistry(Please check answers)

1) The Ka for acetic acid is 1.8e-5. What is the pH of a 3.18M solution of this acid? I did 1.8e-5 = x^2/3.18 x=sqrt 1.8e-5 X 3.18 = 7.56e-3 pH=-log(7.56e-3) = 2.12 The pH is 2.12 2) At 25 degrees celsius, the pH of a 1.75M NaCN solution (the Ka for HCN is 4.0e-10) is ? 4.0e-...

Math question and answer check

Consider the probability function. (Give your answers exactly.) P(x) = 5 − x 10 , for x = 1, 2, 3, 4 (a) Find the mean. Incorrect: Your answer is incorrect. (my answer was 1). (b) Find the standard deviation. (my answer was 1 also on this one. Please help, I just cant ...

Chemistry

Please check the following. 1. What is the empirical formula of the compound C6O6H14? A. C3O3H7 B. CO2H C. C12O12H28 D. COH2 My answer: A.C3O3H7 2. The diameter of an atom is approximately 1x10^-10 meter. What is the diameter in millimeters? A. 1 x10^-12 mm B. 1 x10^-13 mm C. ...

Math

Ten cousins share 3 pizzas equally. What fraction of a pizza does each cousin get? Answer: 3/10 Four boys share 9 yards of fishing wire equally. How many yards of fishing wire does each boy get? Answer:9/4 Please check on the above answers.

physics

While blowing its horn of frequency 477 Hz, a car accelerates at 0.94 m/s2. The car starts from rest by your side and moves away. How many seconds does it take for the frequency you hear to decrease by 5%? Hint: Do not forget to include the time it will take for sound to reach...

Government US

38. Regarding Soviet foreign policy, President Harry Truman believed that the Soviet Union was a. an implacable foe that required direct opposition. b. a regional threat. c. not a threat to its neighbors, Europe, or the United States. d. likely to evolve into a true democracy ...

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