# 1.3 /73.814 In significant digit notation, divid, and the answer to two significant digits. I will be happy to critique your work

71,152 questions, page 187
1. ## Science again...

What other form is released by a radio. A. Heat Energy B. Mechanical Energy C. Ultraviolet Radiation UV? Can you get a tan from your radio? What is that sound...is it mechanical energy? IS the radio warm? Heat energy because c is something to do with the

asked by Missy on April 17, 2007
2. ## Mathematics

The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 165 and a variance of 16. The material is considered defective if the breaking strength is less than 156.2 pounds. What is the probability that a single,

asked by Noah on December 2, 2015
3. ## Physics

Hi, O tried this question, but I'm getting an answer of 0.99 which rounds to 1, but it was not given as one of the answer choices...can u tell me where I'm going wrong? What I did was used the following simplified formula: Volume*density*g =q*E ; where I

asked by Sandra on February 6, 2010
4. ## physics

I tried doing this problem but couldn't get the right answer. I don't get how the answer is 2.19cm. Is the distance referring to the vertical or horizontal distance Four people, each with a mass of 73.5 kg, are in a car with a mass of 1190 kg. An

asked by flame on October 4, 2010
5. ## Anatomy & Physiology II

I've included answers as well. Thanks in advance. 1. Chemical substances secreted by cells into the extracellular fluids that regulate the metabolic function of other cells in the body are called: a. enzymes b. antibodies c. proteins d. hormones I chose D

asked by Ana on February 24, 2010
6. ## Anatomy & Physiology II

I've included answers as well. Thanks in advance. 1. Chemical substances secreted by cells into the extracellular fluids that regulate the metabolic function of other cells in the body are called: a. enzymes b. antibodies c. proteins d. hormones I chose D

asked by Ana on February 25, 2010
7. ## Physics

Bicyclists in the Tour de France do enormous amounts of work during a race. For example, the average power per kilogram generated by seven-time-winner Lance Armstrong (m = 75.0 kg) is 6.50 W per kilogram of his body mass. (a) How much work does he do

asked by Elizabeth on October 20, 2012
8. ## SCIENCE AGAIN

Thanks so much for all your help. These multiple choice questions always have me confused. Here goes: The density of fresh water either a.)reaches a maximum at 4 degrees C, b.)decreases with decreasing temperature below 4 degrees C, c.)increases with

asked by Pat on December 8, 2006
9. ## Chem

Using condensed electron configurations, give reactions showing the formation of the common ions of the following elements. (Type your answers in the following order. In the first box enter your answer using the format [Ar] 4s2 3d10 4p2 for [Ar]4s23d104p2.

asked by Lucas on October 10, 2010
10. ## AMERICAN HISTORY

. Zbigniew Brzezinski, the national security advisor in the 1970s,A. tried to reverse the policy of détente. B. was against cooperation with China. C. believed replacing the Minute Man missles with MX missiles was wasteful. D. supported the SALT II treaty

11. ## English

The assignment is to write a CAUSE paper on an addiction. There is to be three topic sentences with support, a thesis, an introduction and a conclusion. I obviously have left of my sources, and need to insert them. I would really appreciate some feedback

asked by BL on March 4, 2013
12. ## grammar-punctuation

Correct the punctuation by inserting periods, commas, and apostrophes where and if appropriate. 1. We tested his hearing with whistles bells and horns. Answer: We tested his hearing with whistles, bells, and horns. 2. The serial 7's revealed in my opinion

asked by Leslie on May 13, 2011
13. ## math

The expression 9a + 6s is the cost for a adults and s students to see a musical performance. a. Find the total cost for three adults and five students. b. The number of adults and students in a group both double. Does the cost double? Explain your answer

asked by amy on September 7, 2010
14. ## FRENCH

Comparez les deux dessins. Puis posez les questions suivantes a votre partenaire. Voire partenaire repond avec ne...jamais.., ne... plus, ne....personne ou ne...rien. Suivez le modele. There are pictures. One for 13h00 and one for 23h00. In the 13h00 one,

asked by Selena on February 28, 2011
15. ## FRENCH

Comparez les deux dessins. Puis posez les questions suivantes a votre partenaire. Voire partenaire repond avec ne...jamais.., ne... plus, ne....personne ou ne...rien. Suivez le modele. There are pictures. One for 13h00 and one for 23h00. In the 13h00 one,

asked by Selena on February 28, 2011
16. ## physics

A train is moving parallel and adjacent to a highway with a constant speed of 23 m/s. A car is traveling in the same direction as the train at 46 m/s. The car’s horn sounds at 550 Hz and the train’s whistle sounds at 360 Hz. When the car is behind the

17. ## Science

Unit 3 Test Multiple Choice Please select the correct response for the following questions. 1. What is the smallest part of all matter called? (1 point) * a. Element b. Atom c. Molecule d. Compound 2. Which of the subatomic particles is negative? (1 point)

asked by Becky on November 10, 2016
18. ## Math

I need someone to check over this assignment that is for extra credit. I have include the problems as well as the answers . I thank you. Multiple Choice Questions (On Multiple Choice Questions, you do not need to show your work unless asked to.) 1. Write

asked by tamara jones on September 5, 2009
19. ## History

I don't want the answer I just need someone to tell me if they are right or wrong. Thanks! 1. How did Reconstruction improve opportunities for African Americans in the South? a. Many became wealthy business owners. b. They could receive public education.

asked by BeachHairDon'tCare on February 29, 2016
20. ## Math+ confused?!

I had to solve for this: 1) choose 4 people from a class of 12 My answer: n=12 r=4 12C4 = 495 2) chosse 8 people from a class of 12 my answer: n=12 r=8 12C8 = 495 why is it that they both eqaul 495? maybe I am doing it wrong but I am confused why do they

asked by Math on May 15, 2007
21. ## Algebra 1

Hi, I have this question to answer and I am just really confused I don't know where to begin we haven't had a question like this so I'm totally bewildered. Anyway here is my question. Any help is greatly appreciated! Thank you so much for your time!!!

asked by Smiley101 on November 22, 2016
22. ## Precalculus

I hope that the back of the book is wrong the back of the book tells me that the answer is - SQRT(5)/5 I get positive square root( 5) divided by 5 can you tell me if the answer is positive or negative if it is negative can you please explain why? Thanks!

asked by Kate on February 7, 2010
23. ## english

what is the complements and is it predicate nominative or predicate adjective? 1.Does the lemonade taste too sour? 2.The window washers on the fifteenth floor appeared tiny. 3. Why does he always look so serious? 4. Our candidate for the city council was

asked by Khoua Yang on March 26, 2015
24. ## Statistics Algebra 2

A 10-question multiple choice test has 4 possible answers for each question. A student guesses on all ten answer. a)What is the probability that the student selects at least 6 correct answers? b)Is getting exactly 10 questions correct the same probability

asked by Dloc on May 8, 2016
25. ## geometry

I am confuse as to how to actually work these problems. Please help!!! 1. You are planning to spend no less than \$6,000 and no more than \$10,000 on your landscaping project. a) Write an inequality that demonstrates how much money you will be willing to

asked by Anonymous on May 31, 2008
26. ## Physics Phase Constant

..im really stuck on this. can someone please explain? ------- Figure A [[which i tried to recreate below]] is a partial graph of the position function x(t) for a simple harmonic oscillator with an angular frequency of 1.1 rad/s. [a].....x(cm).......

asked by COFFEE on April 4, 2007
27. ## MATH HELP

The south edmonton pet shop has several parrots and dogs for sale. There are a total of 24 heads and 82 legs in the display cages. A) Write a system of linear equations to represent the number of parrots, p, and the number of dogs, d, for sale. p+d = 24

asked by Anonymous on January 10, 2011
28. ## physics

The tallest volcano in the solar system is the 17 km tall Martian volcano, Olympus Mons. An astronaut drops a ball oﬀ the rim of the crater and that the free fall acceleration of the ball remains constant throughout the ball’s 17 km fall at a value of

asked by NEEDS HELP! on September 12, 2012
29. ## chemistry

On this problem I keep getting the wrong answer. I am subtracting the initial concentration of Cl2 by the equilibrium concentration then using the difference to subtract for the rest using the mole ratios. Then i used the keq constant equation of

asked by andy on April 8, 2010
30. ## Physics

Answer in m/s. The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distance 88 cm apart on the same axle. From the angular displacement 18.4 degrees of the two bullet holes in the disks

asked by Amanda on April 15, 2009
31. ## Science

A student puts different types of soil into 2 pots and pours the same amount of water into the pots. How can she find out how much water stays in each type of soil? A By weighin each pot B By looking at the pot C Measuring amount of water that drained from

asked by Jenny on November 14, 2006
32. ## Physics

Answer in m/s. The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distance 88 cm apart on the same axle. From the angular displacement 18.4 degrees of the two bullet holes in the disks

asked by Amanda on April 15, 2009
33. ## biology

You have discovered a new species of yeast and you would like to determine the pathway that this organism uses to synthesize the amino acid tryptophan. This yeast species can take up tryptophan, or synthesize it on its own if tryptophan is not present in

asked by Anonymous on July 11, 2014
34. ## Physics Homework

I have a few questions that I don't understand and would like to get checked, please? 5.If energy is conserved and momentum is conserved, would they both have to be conserved simultaneously in some interaction? My answer: No because each engergy and

asked by Jenni on September 25, 2007

Triangle PQR is transformed to triangle P'Q'R'. Triangle PQR has vertices P(3, −6), Q(0, 9), and R(−3, 0). Triangle P'Q'R' has vertices P'(1, −2), Q'(0, 3), and R'(−1, 0). Plot triangles PQR and P'Q'R' on your own coordinate grid. Part A: What is

asked by Music Lover 14 on November 13, 2016
36. ## A&P II

1. Sandy, a 16-year-old woman, returns to the emergency room for the fifth time. She has been treated for Bulimia repeatedly. On initial assessment, you note shallow breathing. ARTERIAL BLOOD GASES are as follows: pH = 7.45 PaCO2 =47 mmHg HCO3- = 33

asked by Patricia on November 11, 2013
37. ## Nicola

Hello, I need some help with a few questions about this poem: She was a Phantom of delight When first she gleamed upon my sight; A lovely Apparition, sent To be a moment's ornament; Her eyes as stars of Twilight fair;  Like Twilight's, too, her dusky

asked by Literature on December 15, 2014
38. ## precalculus

Can you check my answers? 1.Which of the following shows the best next step to prove the following by mathematical induction? 3^n>n*2^n, n≥1 1.When n=1, the formula is valid because 3^1 1*2^1 3>2 2.Assuming that 3^k>k*2^k a.3^k+1>k+1*2^k+1

asked by sally on December 15, 2016
39. ## English

8a. Since American Idol premiered on television, many talented contestants have appeared on the show. 8b. Since American Idol premiered on television, many talented contestants appeared on the show. my answer is A. please give me an explanation on the

asked by Pam on April 29, 2008
40. ## Math

Write an equation and solve for x: Three more than twice x when x=9 1. Write the equation 2. Solve the equation My answer: 2x + 3 = 9 Would this answer be correct?

asked by Patrick on March 6, 2017
41. ## Astronomy

1. Sun-grazing comet ISON disintegrated on November, 2013. Observation of the comet suggested an elliptical orbit with period 581,480 years. What would this predict for the distance from the Sun at the orbitâ€™s aphelion, the farthest point from the

asked by keitanako on December 9, 2013
42. ## Algebra

asked by Helpless in Math on May 27, 2007
43. ## Calculus

I have three questions I need help solving 1) A ball's position, in meters, as it travels every second is represented by the position function s(t) = 4.9t2 + 550. What is the velocity of the ball after 3 seconds? 2) The cost in dollars of producing x units

asked by Dante on October 2, 2017
44. ## Math

A football coach divides 42 players and 12 coaches into groups. Each group will have the same number of players and coaches. What is the greatest number of groups that can be formed? a. 12 groups b. 6 groups c. 2 groups d. 4 groups My answer is 6 groups

45. ## statistics

A sample of 106 golfers showed that their average score on a particular golf course was 87.98 with a standard deviation of 5.39. Answer each of the following (show all work and state the final answer to at least two decimal places.): (A) Find the 90%

asked by Laynette on September 2, 2011
46. ## statistics

A sample of 134 golfers showed that their average score on a particular golf course was 87.43 with a standard deviation of 4.53. Answer each of the following (show all work and state the final answer to at least two decimal places.): (A) Find the 99%

asked by Valerie on November 2, 2010
47. ## Probability

A player is randomly dealt a sequence of 13 cards from a standard 52-card deck. All sequences of 13 cards are equally likely. In an equivalent model, the cards are chosen and dealt one at a time. When choosing a card, the dealer is equally likely to pick

asked by Art on February 21, 2014
48. ## chemistry

Hi. We did a popcorn popping lab for chemistry and I was wondering if someone could help me with these few questions here: 1) Why is popcorn better stored in the freezer or refrigerator rather than on the shelf at room temperature? My Answer: I think it

asked by Georgiana on May 30, 2007
49. ## Math

In triangle ABC, the measure of ∠B is 90°, BC=16, and AC=20. Triangle DEF is similar to triangle ABC, where vertices D, E, and F correspond to vertices A, B, and C, respectively, and each side of triangle DEF is 1/3 the length of the corresponding side

asked by Swimmer on May 10, 2018
50. ## statistics

A sample of 200 students in a English class were asked- How long did you sleep last night? sample mean: 6.4 hours S.D. = 1.6 HOURS Standard Error = .11 hours sample size = 200 What type of data is used in this example? my answer: MEASUREMENT DATA What

asked by Sheri on July 9, 2012
51. ## english

wat is moral imperfection? in your own words You need to do it in your own words. Moral imperfection is not immorality, but can lead to it. Lying is a moral imperfection, as is stealing, or cheating. Note to Michelle: When talking to your friends, using

asked by michelle on March 17, 2007
52. ## AP Chemistry Help!!

When you light a candle, the paraffin wax soon begins to melt. Paraffin wax is a covalent compound. Can you classify the melting of the wax as a chemical change or a physical change? If so, which is it? If you cannot classify it as chemical or physical,

asked by Heather on January 22, 2017
53. ## Geometry

Two straight lengths of wire are placed on the ground, forming vertical angles. If the measure of one angles formed is 72 degrees, what are the measures of the other three angles. Explain your answer. My answer-- Vertical angles are congruent and if the

asked by Ashley on December 8, 2015
54. ## Maths

Point P in the curve y=x^3 has coordinates (3,27) and PQ is the tangent to the curve at P.Point Q touches the x-axis.Find the area of the region enclosed between the curve, PQ and the x-axis. My answer: I used differenttiation to find the gradient of the

asked by Debora on March 12, 2017
55. ## algebra 1

ASTRONOMY- an object's weight on mars can be found by multiplying 0.38 by the object's weight on mars. a) an object weighs p pounds,on earth. write an expression for its weight on mars. my answer is 0.38p, is it correct? b)dana weights 120 pounds, and her

asked by alanaR. on August 26, 2010
56. ## physics

The treasure map gives the following directions to the buried treasure: "Start at the old oak tree, walk due north for 490 paces, then due east for 120 paces. Dig." But when you arrive, you find an angry dragon just north of the tree. To avoid the dragon,

asked by Angela on October 11, 2009
57. ## Statistics

Please Help! If someone could just show me how to do a problem like this! The corrosive effects of various soils on coated and uncoated steel pipe was tested by using a dependent sampling plan. The data collected are summarized below, where d is the amount

asked by Casey on October 29, 2013
58. ## physics-mechanics

A high-speed test track for cars has a curved section — an arc of a circle of radius R = 1440 m. The curved section is banked at angle a = 19.1 degrees from the horizontal to help the cars to stay in the road while moving at high speeds. The acceleration

asked by J on February 12, 2011
59. ## Hmmmm...I Need My Answer Soon D:

For 0.2 mg = ? g Is the answer 0.200??? Or no?? :]

asked by Cheyenne on September 16, 2009
60. ## Math

(x+1)/3 + (3x - 2)/4 = (x + 5)/8 - (7x - 1)/6 - 37/12 I need the steps please...I know the answer

asked by Sue on November 1, 2012
61. ## math

If m#= m/m^2-m ,what is the value of 6#-[(-5)#]? a. 1/30 b. 1/20 c. 1/4 d. 11/30 e. 9/20 please answer and explain

asked by Tomas on November 15, 2013
62. ## Fractions

5+ 2/5 would the answer be 5/1+ 2/5 = 5/1 times 5/5 +2/5= 25/5 + 2/5 = 27/5

asked by Sarah on September 6, 2016
63. ## math check

subtract: 3+5i-(-4+6i) is the answer 7-i?

asked by Shawn on October 27, 2008

wat is 7m-3m-6=6 can you please tell me how you got that answer?

asked by Alexus on September 13, 2010
65. ## Algebra

I can not get he correct answer -10. -3/3{a+c(b+5)-(-6+a)} a=1, b=-6, c=-4

asked by Rob on June 26, 2012
66. ## algebra1

4 3/4 + (-3 3/4) my answer -8 1/4. is it correct?

asked by alanaR. on August 28, 2010
67. ## Precalculus with applications

If f(x)=-4x^2 and g(x)=2/x, find [g*f](x). answer I got: [g*f](x)=g(f(x)) =g(2/-4x)^2 Is this right?

asked by Mary on November 19, 2008
68. ## math

5x-3y=3 2x-4y=-10 3x+y=(?) a. -30 b. -13 c. -7 d. 7 e. 13 please answer and explain

asked by thomas on May 3, 2014
69. ## math

what is the value of 2 in 26.325.#any one can answer this#

asked by kelvin on August 18, 2016
70. ## chemistry

how many atoms of Na are there in every 2.5g of Na? please answer me! thank you!

asked by gine2 on January 11, 2011
71. ## Math

What's 4.32(3.7 + 1.65) I have 5.35 so far. And I'm just making sure what the answer is for 4.32 x 5.35

asked by Stefano on October 15, 2014
72. ## a

8x(-2.3)=-18.4=2 is this the correct answer? thanks

asked by Lea on September 26, 2009
73. ## Algebra

(a^2 b^3)^2 ----------- (a^4 b^2 c)^2 Is Simplified answer b^2 --------- a^4 c^2

asked by mary on April 27, 2011
74. ## Physics

asked by tj on October 16, 2012
75. ## Math

How do I find the answer of 7(5.2)?

asked by Jennifer on December 7, 2009
76. ## math!

asked by kristine on February 5, 2008
77. ## Math7

Question 2 7.2-3c=2c-2 My answer C=1.84

asked by Tam on January 20, 2015
78. ## math

find the value of x so that f(x) = 13 in f(x) = -1/4x. my answer is -52.

asked by Anonymous on March 12, 2013
79. ## Algebra 1

(2y^-1)^2 ---------------- (4y)^-2 The answer is supposed to be 64 but I can't seem to get it. Thanks to anyone who can help!

asked by Halle on April 30, 2015
80. ## algebra 1 help

1)|J|/5+1=-4 a. no solution b. j=15 or -15 c. j=-25 d.j= -15 my answer is A 2) 1/6|4x-8|=6x a. x=-7, x=11 b. x=8/3, x=8/5 c. no solution d. x=-1/4, x=1/5 my answer is J

asked by hips on April 25, 2013
81. ## Algebra

Okay this is the problem: 4x+2y=32 x+2y=20 I got this: 5x+4y=52. Is that my answer???

asked by cheyenne on June 4, 2013
82. ## math

3r+b/a +y =w solve for r would the answer be r=wa-y-b/3

asked by jill on September 3, 2015
83. ## Algebra-Ms. Sue

asked by Cassie on March 11, 2013
84. ## math

use a proportion to answer (2x-5)/6=(4x+1)/2

asked by miss c on May 15, 2012
85. ## math

please answer these please??(studyguide) 6. 6 to 8 and 18 to x A.20 B.22 C.24 7.9/36 and x/4 A.1 B.4 C.9 8.42/22 and 21/x A.12 B.11 C.10 9.x/7 and 5/1 A.25 B.30 C.35 10.20/x and 4/8 A.35 B.40 C.48

asked by Matt on January 16, 2014
86. ## chem

asked by lyne on January 5, 2009
87. ## math and science both

asked by angie on January 7, 2016
88. ## math

f(x)= 2x+5 inputs (5) and (8) So would the answer be 15 and 21

asked by Katie on August 30, 2011
89. ## math

asked by paul on September 22, 2011

Solve: x^2+y^2=10 and xy=3 Answer: (+/-3, +/-1) or (+/-1, +/-3)

asked by Lucy on October 12, 2008
91. ## Algebra I is hard

Okay now there is more. There is brackets. 3[3(x+1)+2(x-1)] Is this the answer? [9x+9+6x-6]

asked by Wynter on September 16, 2009
92. ## algebra

i would like to know how to get to the answer of this question... n+4 and n-8 and 3n

asked by Jackie on September 4, 2008
93. ## MATH

54-6 DEGREES 2+6=? HOW DO YOU GET THE ANSWER?THANKS

asked by ~~~HELP~~~ on September 7, 2008
94. ## math

simplify (xy^5)^3/x^y^4 is the answer xy^11

asked by ranuna on September 15, 2008
95. ## Math

(ã5 + 5ã6)(ã5 - 5ã6) is the answer -145 ???

asked by Tristan on June 9, 2008
96. ## math

what is the answer to 18-3(2times2)?

asked by lidia on March 15, 2011

asked by anna on January 29, 2007
98. ## college algebra

√3x+7=3x+5 How do I solve when the answer is -1?

asked by Anonymous on March 27, 2013
99. ## MATH

I THINK a. 4,000 is the answer am I right

asked by Ross on October 3, 2009
100. ## Math check 3

Simplify: 9/(y+8)-y/(y-2)+(y^2+4)/(y^2+6y-16) IS the answer y-14/(y-2)(y+8)?

asked by shawn on October 12, 2008