# Algebra, help + check please

106,914 results, page 93

find [7] A.1/7 B.-7 C.7 D.0 i pick 7.

3. ### English

I need help on sentence check 2 chapter13
4. ### math

how can we check that 46/100 is equal to about 39/85?
5. ### Math

Solve and check. ( 3 marks) (5)/(x-1)+(2)/(x+1)=-6 I need the help!
6. ### Calculus check revised.

y=-1/sqrt(x^2+1) , then dy/dx= A. x/(x^2+1)^1/2 B. x/(x^2+1)^3/2 C. -x/(x^2+1)^1/2 D. -x/(x^2+1)^3/2 E. x/(x^2+1) I got B.
7. ### Calculus check

If f(5)=3 and f'(5)=-2, find the derivative of x^2f(x) at x=5. A. 0 B. -18 C. -12 D. -20 E. -80 I got D
8. ### Calculus check

The limit as x approaches 1 (x^3-1)/(x^2-1) is I got 3/2
9. ### Math Check

Is the following statement true: (x^4+6x^2+9)=x^2+3
10. ### Math

x^-5 * x^7= x^5 can someone explain why and check if it is correct
11. ### Math

Can you check these? .04 is 1/8% of what number? 32 What percent of 1/8 is 3 1/2? 2800%
12. ### Mathematics

Which equation has (2,-1) as a solution. Y=2x - 1•• Y=x + 3 Y=x - 3 Y=-2x+1 Check my answer
13. ### Mathematics

Find the slope of (2,3) and (-2,1) -2 2 -1/2•• 1/2 Check my answer
14. ### English

I need help for final check: chapter 16
15. ### Math check

What is 6 5/6 - 5 1/2 This is my answer:1 2/6 or simple form: 1 1/6

what is the value of -3x(7+(-3)^2)divided by 3? 13*** -2 -16 -48

Find the LCD of 3/5 and 1/6 a.5 b.6** c.11 d.30
18. ### Physics

Check whether the 3 vectors ar coplanar or not A= t+j+k , B= i+3j+k , C= 2i+2j+2k
19. ### Algebra

I know what the answer is just not how to exopress it. Can someone help me please? State the domain of the function: f(x)(2+x)/(3-x) Now I know the domain is (-infinity,3) U (3, infinity)? (-infinity,3] U [3, infinity) ? How do I express it? do I use ] brackets or open at the ...
20. ### Algebra

I know what the answer is just not how to exopress it. Can someone help me please? State the domain of the function: f(x)(2+x)/(3-x) Now I know the domain is (-infinity,3) U (3, infinity)? (-infinity,3] U [3, infinity) ? How do I express it? do I use ] brackets or open at the ...
21. ### intro to algebra

how do i figure out this type of problem. 7(12t). im in college but never learned algebra in high school The seven multiplies by the innards of the parenthesis. 7*12t= 84t
22. ### algebra

Here are the scores of 13 students on an algebra test. 55 , 57 , 60 , 60 , 65 , 68 , 70 , 70 , 80 , 80 , 84 , 89 , 92 Notice that the scores are ordered from least to greatest. Give the five-number summary and the interquartile range for the data set.
23. ### Algebra

Does anyone have a study guide i can use so i can study before my algebra 1B semester exam tommorrow i looked all over the school website but i can ot find the one she recomended
24. ### Algebra 1

a girl that was 4 and a half feet tall was standing next to a telephone pole. at one 'o clock, her shadow was 8 ft. long, and the pole's was (i think) 36 ft. long, how tall was the pole? this is from memory, since i forgot to bring the paper home. but i believe that is it. I ...
25. ### Algebra

Well someone please help me with this problem!!!!!!!!!!!! From a base elevation of 8200ft. a mountain peak in colorado rises to a summit elevation of 14701ft.over a horizontal distance of 15838 ft. Find the grade of the peak. The grade of the peak is what percent? (Round to ...
26. ### math,word problem(algebra)

The length of a piece of cloth is 8y m.Mr Lim cut 7 m from it to sew some cushion covers.Then,he cut 3y m to sew a curtain.The remaining material was cut into 4 equal pieces.How long was each piece in terms of y? please help me to complete this&thanks for advance
27. ### Algebra 1

A community group orders 1,250 water bottles to donate to the runners in a marathon. If the probability of a water bottle being defective is 1.2%, predict how many of the water bottles are likely to be defective. Round your answer to the nearest whole number. a. 12 b. 15 c. ...
28. ### Algebra

(I jut this in word form so someone would understand better but can someone please try helping me solve this. I only need help with this 1 problem.) Evaluate this pricewise function at x=-4 and x=4. f(x)={x^2, if x less than or equal to -4 {x^3, if -4 less than x less than or ...

You have \$2.75 in dimes and quarters, and you have a total of 17 dimes and quarters. How many of each type of coin do you have?
30. ### Algebra

1. Find the quotient: e^2-e-12/e-4 A. e+3/e-4 b. e^2+3 C. e-3 D. e+3 2. Find the quotient: (a^2+11a+30) / (a + 5) A. a+6 B. a^2 + 10a+25 C. a^2 + 11a + 25 D. a+6/a+5 3. Find the LCM for x^2+3x+2 and x^2 +5x+6. A. (x+1)(x+2)(x+3) B. x+1 C. x+3 D. (x+1)(x+3) Need help with these...
31. ### Math

To Reiny: Hi, thank you for your time Reiny and your info. I am so sorry but on the first one I accidentally put 0 where I should have put =9. In other words, the first equation should have said (9n+1)squared =9. Really sorry to have taken up your time with the wrong equation...
32. ### Algebra

Write an equation for the translation so the graph has the given vertex. 1. y=-|x| vertex (-5,0) 2. y=2|x| vertex (-4,3) 3. y=-|x| vertex (p,q) I really have no idea how to even begin these, but I do know the answer to # 2 is y=2|x|+11 and #3 is y=-|x-p|+q Thanks in advance. ...

I have to write an essay on the chloera of haiti. For my intro, I have to write explain the subject and why it's important. I haven't written why it's important yet, but I described my subject. Can you please check to see if it's okay. Also, my essay only has to be 250-500 ...
34. ### algebra

Multiply and simplify. Assume that no radicands were formed by raising negative numbers to even powers. √6x3 √18x2 I have never been good at figuring this formula out with square roots and I am practicing for a test next week and I really want to graduate so if you...
35. ### Please Check My Math Work2

3. You are sliding a big cabinet down a truck ramp for a customer. You must maintain control of the cabinet because it is very heavy. There are 2 ramps in the building. The equation of ramp 1 is y = 2x + 7 and the equation of ramp 2 is y = 3 x + 7. Which is the safest ramp to ...
36. ### algebra

solve 4^-x=64 Please help -x log 4 = log 64 -x = log 64/log 4 = 3 x = -3

38. ### algebra 2

5*square root of 5-square root of 45. Help please?

The four possible unknown chemicals are: Cu(s), Ca(OH)2(s), KNO3(aq) and C6H12O6(aq). a) colorless solutions, high electrical conductivity, no change on litmus paper b)white crystals, no electrical conductivity, red to blue on litmus c) shiny brown wire, high electrical ...
40. ### math 106

In this question we will check if a discount is actually a discount. Say you are to borrow \$100 for a year at a simple interest rate of 10%. Determine the discount D and the proceeds P for this loan. Next take another look at the situation. You take away P dollars and at the ...
41. ### American Government Please Check

Why is the Supreme Court case Snyder v. Phelps an example of competing rights? a. The right to privacy and speech causing emotional distress came into conflict with the freedom of speech. b. The freedom of religion came into conflict with the government's insistence on prayer...

At rest, a car’s horn sound at the note A(440Hz) The horn is sounded while the car is moving down the street. A bicyclist moving the same direction with one third the car’s speed hears a frequency of 415 Hz. What is the speed of the car? Is the cyclist adead of or behind ...
43. ### History

Could someone please find me a website that has great information on Business enterprise in America so I can make a timeline on it. Specific dates that I need are 1906, 1913, 1914 , 1930, 1939. I would greatly appreciate it. This site seems to have the most information. http...

I printed out a summer activite to test my skill on science and i found some that i stumbled upon and couldn't figuire out so help? If im wrong then please correct me. 2.A 3.B 4.B 5.A 6.B 2.Giraffes have long necks that allow them to eat leaves in trees. What is this an ...
45. ### English

Can you please check these sentences grammatically? Thank you very much 1) Kurtz was torn between his desire to bring the light of white civilization to Africa and his boundless will-to-power and inordinate pride. 2) In the end, however, Kurtz had the courage to look into ...
46. ### Spanish

I had to write sentencesabout an ache in a certain body part with indirect pronoun . There were pictures provided and the first part of the sentence like "A mi amigo" and we had to fill in the restCould you check, please 1. pain in head A nosotros nos duele la cabeza. 2.pain ...
47. ### AP US History

Was the War of 1812 defensive or aggressive on America's part? I feel like it was aggressive because we attacked first, but maybe it was defensive because we were defending ourselves against impressment. Someone please clarify this for me, thanks. You're right! :-) Both points...
48. ### Algebra 2 ..

Solve the equation by completing the square. x^2-2=9x My answer: x=9/2+or- the sqrt. of 22.25 (but when I checked my answer the actual answer was x=9+or - the sqrt. of 89 and then all over 2) Please explain why my answer is different from the actual answer.
49. ### Metaphors

Find a metaphor --------------------------------------- DREAMS Hold fast to dreams, For if dreams die, Life is a broken-winged bird That cannot fly. Hold fast to dreams, For when dreams go, Life is a barren field Frozen with snow. -Langston Hughes !. What is the first meaphor ...
50. ### ALGEBRA

Any one know of free sites where I can use a algebra calculator or download one?
51. ### math 116

Should algebra be taught to everyone? Who should study algebra?
52. ### pre-Algebra

Sorry, struggling through pre-Algebra .. :-( .. How do i figure out 5x = -20 ?
53. ### algerbra

i did my question already but i was wondering if someone could double check my work. the question says to graph the following function on the grpah f(x)={|x|, -3 is equal to or less than x less than 2} {2x-8, x less than or equal to 2} i dont know if its possible to show a ...
54. ### Physics

Can you please explain further because I don't understand? Two parallel slits are illuminated by light composed of two wavelengths, one of which is 645 nm. On a viewing screen, the light whose wavelength is known produces its fifth dark fringe at the same place where the light...
55. ### English

Can you please check these sentences? Thank you. 1)How does Eveline earn a living? What is she like? She is submissive, tired, confused and unsure. 2) She was sexually abused by her father. 3) What does she think of while she is sitting waiting for the time to leave? What ...
56. ### behavior problems ( dogs)

Please check my answer thanks Your new client has a nine-month-old, neutered male Anatolian Shepherd Dog. She would like your help with a behavior problem. Each night, after she lets the dog out to eliminate, he refuses to come back in. She has ended up chasing him around the ...
57. ### Literature

please check my answers: 1. In "go Down, Death", Death is personified as a a. preacher in heaven b. cruel and devious angel c. rescuer on horseback d. huge comet in the sky i chose C 2. In the last stanza of "Tableau", the boys a. angrily comfront the adults of the town b. ...
58. ### Math Algebra

How can I solve this problem? A circle has diameter [AB]. The centre of the circle is (1,3), and B has coordinates (4,-1). # Find the coordinates of A. # Find the length of the diameter. HELP ME PLEASE
59. ### Algebra

Can you please help me with this problem? (8X2^Y0^Z6^)2^ + 3X2^ + z12^ + 5Y0^z12^ 64X4^Y2^Z8^ + 3X2^ + Z12^ + 5Y0^Z12^ 67X6^ + 5Y2^ + Z32^
60. ### English

I left out the following adjectives. Can you please check them, too? 1) I've got a long face, heavy (thick?), curved eyebrows, oval eyes, a small nose and a round mouth. I've got short, dark, wavy hair. According to the Face Reading Guide I'm (should be?) clever, friendly and ...
61. ### algebra ll

if wrong corrcet and show work please.use two ordered pairs to write a prediction equation. then use your prediction equation to predict the number of comic books sold when the price is \$4.50. my answer is y equals 28 minus 27 equals 1
62. ### pre-algebra

a field 480,000 m^2 is 160 m wide. What length of fencing is needed to enclose it? i thought you would just have to do A=lw 480,000= l(160) l= 3000 but the answer is wrong. the correct answer is in the six thousands. please help
63. ### Algebra

Please help… I am totally lost Evaluate the exponential equation for three values of x greater than -4, three values of x smaller than -4, and at x = -4. Show your work. Use the resulting ordered pairs to plot the graph. State the equation of the line asymptotic to the graph...
64. ### ALGEBRA

Suppose that you want to purchase a home for \$450,000 with a 30 year mortgage at 6% interest. Suppose that you can put 40% down. Assume that the monthly cost to finance \$1,000 is \$6.00. What is the total amount of interest paid on the 30 year loan? I need help.Steps please.
65. ### algebra

The table shows the amount of milk that wisconsin dairy farms produced from 1939 to 1962 which linear model best fits this data? year milk produced(in billions of lbs 1939 12 1962 15 2005 21 can someone please help
66. ### Algebra

Please explain how to do this problem. The answer says the answer is 2.43 inches, but I don't get it. A school wants to take out an ad in the paper congratulating a basketball on a successful season. The area of the photo will be half the area of the entire ad. The photo is 7 ...
67. ### Algebra 2

So I solved this problem but, strange as it sounds, I don't know how to do the work. Here's the question: One number is eight less than another number. The sum of the numbers is eighty. Find both numbers. Here's what I've got: y-8=x x+y=80 x=36 y=44 I won't get credit unless I...
68. ### algebra

The values from a stem-and-leaf plot are:27,27,29,33,38,44,44,44,46,50,58,in numerical order.Please explain how to find the lower quartile for this set. I would take the median of the first five values 27,27,29,33,38;this would make 29 the lower quartile.Is this correct? Is ...
69. ### Poem: Beware do not read this poem by Ishmeal Reed

Could someone please check these ASAP! 1. What story does the poem tell in the first three stanzas? Answer: The story that the poem is telling is a women who lived amoungst mirrors had locked herself in her house, and two villagers broke in, and she escaped into her mirror. ...
70. ### Chemistry Check Please! ?Fixed

A solution is prepared by dissolving 3.44 g of sucrose, C12H22O11, in 118 g of water. a) What is the molality of the resulting solution? b) What is the mole fraction of water in this solution? B) moles of h2o=118g/18(g/mol)=6.548 mol moles of c12h22O11= 3.44g/342.3(g/mol)=0....
71. ### Math

Marco drew 20 pictures. He drew 3/4 of them in art class. How many pictures did Marco draw in art class? Answer: 15 pictures Caroline has 10 marbles. One half of them are blue. How many of Caroline's marbles are blue? Answer: 5 marbles What is the value of the underlined digit...
72. ### interval

Find the exact solutions on the interval [0,pi]. 2sin2x = sqrt(x) Please help me! kristie, this problem is somewhere between a calculus problem and an algebra one. I'm not sure what you're taking. If you see that the eq. is = to 4(sin2x)^2=x , then you might see where they're ...
73. ### mat117/algebra

Rewrite the middle term as the sumof two terms and then factor completely. Please show me the formula and how to use it correctly. 12w^2 + 19w + 4 19w can be written as 16w + 3w. Those are the cross product terms when multiplying 4w times 4 and 3w times 1. That is a clue that ...
74. ### Intermediate algebra

If a stone is tossed from the top of a 230 meter building; the heigth of as a function of time is given by h(t)=-9.8t^2-10t+230, where t is in seconds, and height is in meters. After how many seconds will the stone hit the ground? Round to the nearest hundreth's place; include...
75. ### Math- algebra

If a ball is thrown directly upward with a velocity of 26 ft/s, its height (in feet) after t seconds is given by y = 26t − 16t^2. What is the maximum height attained by the ball? -Please just post answer if possible, my calculations are off. Just want to make sure I am ...
76. ### Pre-Calc

Please check my answers; 1.Which of the folowing is another representation of (-3,pi)? (3,120degree) (3,0 degree)I think it is this one?? ((-3,0 degree) 2.Which is not a representation of (5,150 degree) (-5,-30 degree)I think it is this one? (-5,330 degree) (5,510 degree) 3....
77. ### Algebra/Math

Can you check these for me. Directions: Find the slope of the line that passes through each pair of points. 1. (3,-8) and (-5,2) Answer: -10/8 2. (-10,-3) and (7,2) Answer: -5,-17 3. (-7,-6) and (3,-6) Answer: 9 4. (8,2) and (8,-1) Answer: 0 undefined Directions: State whether...

1. Samuel is 2/3 as old as his brother. In five years, he will be 3/4 as old as his brother will be. Find their present ages. a. If x = the brother’s age now, write an expression for Samuel’s present age in terms of x. b. Write an expression for the brother’s age in five...
79. ### English

What do you have to do afer school? 1. I have to go to my academy and study hard until 11 p.m.. 2. I have to go to an academy to study math, English and science. 3. I have to go to the academy to study 5 subjects. 4. I have to wash clothes in the washing machine. 5. I have to ...
80. ### PLEASE CHECK MY MATH

What number is 73% of 215? (1 point) 215 = 0.73n n = 0.73 × 215 0.73 = n × 215 215 = 73n 2. What percent of 94 is 23? (1 point) n/94 = 23/100 23/94 = n/100 94/n = 23/100 23/94 = 100/n 3. 80 is 40% of what number? (1 point) 200 32 20 112 4. Find the commission on a \$1,250 ...
81. ### English

1. I want to do volunteer work at the Han River. I want to pick up trash and make it clean/clear. 2. I want to volunteer at the Han River. I want to pick up trash from the river, and make it clean/clear. (Would you check the English expressions? Correct errors, please. Do I ...

Train A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 miles per hour and train B is traveling at 120 miles per hour. Train A passes a station at 5:20am. If train B passes the same station at 5:35 am, at what time will train B catch ...
83. ### Math

To make green paint,Jeff's art teacher instructed him to mix blue and yellow paint. To make the desired shade of green, the ratio of blue paint to yellow paint is 3:4. What does this ratio mean? My Answer: It means comparing part to part (comparing how much blue paint there is...
84. ### Algebra Midterm

I've been home sick with the flu and have missed 2 days of midtern reviewing. I have one more day and we're allowed one page of notes. I took a practice test online and totally failed. But I've been doing so well lately. Doesn anyone know where I can pick up on the earlier ...
85. ### English

Can someone check these two paragraphs, please? It is really important to me. 1)In Chapter ten Dr Jekyll comes to the realization of the primitive duality of man. He admits that man is not truly one but two. He is sure that if he can separate his two identities, he will be ...
86. ### Philosophy Question

Who are some famous Mexican philosophers? Check this site for a list of some of Mexico's philosophers. http://en.wikipedia.org/wiki/Category:Mexican_philosophers Ah, most of these guys are white. I want some real latino philosophers, please. What does skin color have to do ...
87. ### Math

1. Rishi ram obtained an installment loan for \$3,000.00. He agreed to repay the loan in 6 monthly payments. His monthly payments is \$516.50. What is the APR? MY ANSWER=0.33% 2. Tim Newman took out a simple interest loan of \$1500 at a 10 percent interest for 12 months. After 4 ...
88. ### Math

1) Find the equation of the following lines: A)Through the point (-4,2) and perpendicular to the line y=-1/2x +1 y-y1=m(x-x1) The reciprical of -1/2 =2 So my answer is y-2=2(x+4) or simplified y=2x+10 B)Through the point (1,1) and parallel to the line 5y=15x+25 so y-1=15(x-1) ...
90. ### chem

Describe in detail by words how to prepare 200ml of .150M HCl from a 1.00 M HCl stock solution? Need help with this please? i used C1V1=C2V2 and got volume 2 = 33L or 0.33mL. to prepare the solution i need to weigh 1 gram of HCL (from 1.00M HCl stock solution)lets say i put it...
91. ### PLEASE CHECK MATH TY!

1. Which of these numbers can be classified as both real and rational? A. 1/2 *** B. -1.016879413894 C. √5 D. 0.89089908999 2.Which is both a real number and an integer? A. √7 B. 0.15 C. -15 *** D. 1/3 3. What is an example of an irrational number? A. -√16 B. √25 C...
92. ### Algebra

Lydia wants to buy picnic tables, benches, and permanently installed grills. On one page she notices that 5 picnic tables, 10 benches, and 3 grills sell for \$1330. On another page she sees that 20 picnic tables, 30 benches, and 20 grills sell for \$5550. Finally, on a third ...
93. ### French

Could you please check my answers thank you so much. Directions: Tell whether each item is either casual or formal. Using sport and habillé 1. Des baskets Answer: sport 2. Un tailleur Answer: habillé 3. Un jean Answer: sport 4. Un complet Answer: habillé 5. Une blouson ...
94. ### Algebra

Please help me with this problem, I'm not entirely sure on what to do to solve it. Thank you, tutors. The weight of an object is related to its length by the equation: weight (in pounds) = 3L^3 (in feet). If the object is 6 feet tall, what is its weight? Given answers: A 6 ...
95. ### algebra

Mrs. Stewart has 8 pair of sandals, 6 pairs of pants and 12 t-shirts. While getting ready to go out for ice-cream, she exclaims, "I have nothing to wear!" Mr. Stewart respond by telling her exactly how many different outfits she could wear if each outfit considered of a pair ...

I have a portfolio assignment to do for SS and I'm just freaking out because I'm 3 units behind and I can't catch up until I complete this but I just don't understand it at all and I'm too prideful to ask the teacher for help. So, I beg, please help me? How did immigration ...
97. ### Literacy 4

Please check my work. Thank you. 1. Government documents in a library are classified according to which of the following schemes? A. Superintendent of Documents B. Government Printing Office C. Dewe Decimal D. Library Of Congress Answer #1 is A 2. You're using the nonfiction ...
98. ### math check again please

I have a slope of -3/4 and the y-intercept at 8 the equation looks like: y= -3/4x + 8 can someone tell me if i'm correct when i'm graphing it. the two points that cross in the x axis and y are (0,8) and (10.5,0) am i correct? correct on the formula. correct on the intercepts. ...
99. ### English

I need to find a good site containing colloquial expressions used in everyday conversations (example, at the phone, at meals etc). I'd also like you to check these sentences, please. 1) Can you use the word “class party” where(to which?) you invite all your classmates? I...
100. ### Literature

please check these The subject of the "Game" can BEST be described as a. survival of the fittest b. the dehumanization of individuals c. the profound childishness of adults d. the need for discipline in the armed forces I Chose C Which of the following details in "Game" is the...