Calculus (Answer Check)

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Calculus

A smoke detector contains 0.2 mg of Americium 241 (Am-241), a radioactive element that decays in t years according to the relation m = 0.2(0.5)^(t/432.2). Where m is the mass, in milligrams, remaining after t years. A) The smoke detector will no longer work when the amount of ...

CALCULUS

A smoke detector contains 0.2 mg of Americium 241 (Am-241), a radioactive element that decays in t years according to the relation m = 0.2(0.5)^(t/432.2). Where m is the mass, in milligrams, remaining after t years. A) The smoke detector will no longer work when the amount of ...

Calculus

Score for Question 2: ___ of 40 points) For the polynomial (x)=x^5-5x^4+12x^3-24x^2+32x-16 , answer the following questions. Show all of your work. How many zeros does the function have over the set of complex numbers? What is the maximum number of local extrema (maxima or ...

U.S History - can u help to check my answer :)

Document B “An insinuation had fallen from the gentleman from Tennessee (Mr. Grundy) that the late massacre of our brethren on the Wabash [at Tippecanoe] had been instigated by the British government. Has the President been given any such information? Has the gentleman [...

Physics - Charged objects (check + help)

Three charged objects are located t the vertices of a right triangle. Charge A (5*10^-6) has Cartesian coordinates (0,4; Charge B (-5.0*10^-6) is at the origin; charge c (+4.0*10^-6) has coordinates (5,0), where the coordinates are in meters. What is the net force on each ...

Literacy 3

Please Check my work. Thank you. 6. To avoid plagiarism in you written research paper, you must provide a citation for which of the following? A. The United Nations ruling on the Soviet-bloc countries B. The date the berlin Wall was pulled down by a crowd in Germany C. ...

Algebra

Can someone verify if my answers are correct? Solve. 1/x+6-1/x-6 My answer is: -12/x^2-36 Solve. 1/x+5+2=5/x+5 My answer is: -3 Subtract. Express your answer in simplest form. 13x/30-4x/15 My answer is: x/6 Can someone verify if my answers are correct? Solve. 1/x+6-1/x-6 My ...

Calculus

Which of the following integrals cannot be evaluated using a simple substitution? the integral of 1 divided by the quantity x squared plus 1, dx the integral of 1 divided by the quantity x squared plus 1, dx the integral of x divided by the quantity x squared plus 1, dx (MY ...

Math

1. Solve the proportion: z z+9 ---- = ---- 3 12 A. 4 b. 3 c. 2 d. 1 my answer is c ? 2. Solve the proportion: 16 = 8 --- --- 4d+2 3 A. 1^ 11 --- 12 b. 1^ 1 -- 3 c. 1 d. 2 My answer is D ? 3. A solution contains 2.2 liters of water. Convert this measurement to milliliters. A. ...

Chemistry II

Hydrochloric acid (77.0 mL of .267 M) is added to 236.0 mL of .0730 M Ba(OH)2 solution. What is the concentration of the excess H+ or OH- ions left in the solution? Done two of these. They are all alike. Use the template from the previous problem. Post your work if you get ...

Writing this equation

how do I write the equation of a line perpendicular to the line 6x – 3y=10 and containing the point (-6, 2). The line you are given can have its equation rewritten im y = mx + b as: y = 2x - 10/3 That tells you that is slope is m = 2. A line that is perpendicular to that ...

Economy

The Good’n’Fresh Grocery Store has two checkout lanes and four employees. Employees are equally skilled, and all are able to either operate a register (checkers) or bag groceries (baggers). The store owner assigns one checker and one bagger to each lane. A lane with a ...

English (Check)

1.Read the sentence below: Your anger at the game's final score is as my despair for my exam scores. What type of figurative language does this sentence use? A.Allusion B.Analogy C.Hyperbole D.Simile**** 2.Read the sentence below: Simplicity is to garden design as symmetry is ...

Leadership-Check #2

Please check my new copy: I believe the essential qualities a leader must possess are to set a vision and to be able to lead. A leader must be able to set a vision to seek for improvement and change the mistakes. A leader must be able to set a vision for improvement to make ...

Calculus- PLEASE HELP

A rectangular piece of tin has an area of 1334 square inches. A square tab of 3 inches is cut from each corner, and the ends and sides are turned up to make an open box. If the volume of the box is 2760 cubic inches, what were the original dimensions of the rectangular piece ...

Calculus II: Finding the volume of a revolution

Question: Find the volume of revolution bounded by y-axis, y=cos(x), and y=sin(x) about the horizontal axis. Since the rotation is happening at the horizontal axis, I thought the limits of integration would be [-1,1] and if the curves are rotated they would over lap so i used ...

Grammar

Circle the nouns that can be used with the adjectives on the right , Development-environment-figures. (Recent) Answer:development and environment Crisis-supply-estimates. (Reliable) Answer:supply and estimates Awareness-theory-concern. (Public) Answer:Awareness and concern ...

physics

Question Part Points Submissions Used 1 2 3 4 5 –/5 –/5 0/5 –/5 2/2 0/10 0/10 1/10 0/10 2/10 Total 2/22 A block of mass m = 2.00 kg is released from rest at h = 0.400 m from the surface of a table, at the top of a θ = 35.0° incline as shown below. The frictionless ...

History

British troops were out moving across the back bay. In Concord and Lexington, trained militiamen were waiting to respond. Where and approximately when is this? Check this site for your answer. Note: the Back Bay is in Boston. http://www.kidport.com/REFLIB/UsaHistory/...

English

Please check my answers! I'm like 92.7% sure there correct but I want to be sure. My answer has the ~~~. Which of the following is the indirect object in the sentence? Lizzie gave Charles a hige birthday gift. A.Lizzie B. Charles~~~ C. Huge D. Gift Which of the following is ...

4 CALCULUS study problem

1. How fast does the radius of a spherical soap bubble change when you blow air into it at the rate of 15 cubic centimeters per second? Our known rate is dV/dt, the change in volume with respect to time, which is 15 cubic centimeters per second. The rate we want to find is dr/...

english

perseverance,expanse,stifle,weary,writhe,premises 1.In order to meet their goals,Olympic hopefuls require persistence as they train and(perserance) in the face of obstacles. 2.Readers must leave library(expanse)by the stated closing time unless permissions for after hour ...

Math

How do you solve this? I posted this question last night and someone answered but it wasn't the right answer. I have tried so many times and still can't get the right answer. the right answer is suppose to be 15/2 5/6-1/3+ 7/8/(1/2)^3 Thank you for your help!!

Calculus

Boats A and B leave the same place at the same time. Boat A heads due North at 12 km/hr. Boat B heads due East at 18 km/hr. After 2.5 hours, how fast is the distance between the boats increasing? You are looking at a right-angled triangle, let S be the distance between them ...

English2- revised

Question In what ways are full-sentence outlines more beneficial than topic outlines? If someone asked, ¿Wouldn¿t it be simpler just to write your paper than to create a full-sentence outline?¿ how would you answer? Explain your response. What steps will you take to turn ...

calculus

hi! just needed help on an FRQ for ap calculus ab. let me know if you have any questions for me. I'm just really confused as far as what I am meant to do. If you could walk me through it that would be amazing. THANKS!! A population is modeled by a function P that satisfies the...

Calculus

i was just wondering if the limit of a funtion exists as it approches a value if both the right side limit and the left side limit both equal the same infinity ( postive inififnty for both sides, or negative infinty for both sides). i know that if one side is negative infinity...

Math: Calculus - Vectors

A plane flies on a bearing of 120 degrees at a constant speed of 550 km/h. If the velocity of the wind is 50 km/h on a bearing 220 degrees, what is the velocity of the plane with respect to the ground? Textbook Answer: 543.5 km/h at a bearing of 125.2 degrees My answer: 543.6 ...

Government Check

What is the primary claim made by those who oppose hate crimes legislation? a)There is no way to catch all perpetrators of hate crimes, so all perpetrators should be punished equally. =b)There is no way to determine the motivations behind a crime, so all criminals should be ...

algebra

1)Find the exact solutions to 3x^2=5x-1 using the quadratic formula. answer=5 plus or minus the square root of 37 over 6 2)Use the discriminant to determine the number and type of roots for the equation 2x^2-7x+9=0 answer=2 complex 3)Identify the vertex,axis of symmetry,and ...

french

Can you check my paragraph and make sure its grammatically correct in passé composé? Paragraph: Je suis allé à l'église hier. Après la messe, je suis allé en ville pour chercher quelque chose dans le magasin. Moi et ma famille sont allés manger au restaurant restuarant...

algebra

1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 a.15 b.15/2 c.-15 d.1/15 answer=a 2)Find the sum of the infinite geometric series n=1 at the bottom of the sigma notation 20(-1/4)n-1 on the right side a.25 b.80/3 c.16 d.does not exist answer=c 3)Find the sum of ...

algebra

1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 a.15 b.15/2 c.-15 d.1/15 answer=a 2)Find the sum of the infinite geometric series n=1 at the bottom of the sigma notation 20(-1/4)n-1 on the right side a.25 b.80/3 c.16 d.does not exist answer=c 3)Find the sum of ...

algebra

1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 a.15 b.15/2 c.-15 d.1/15 answer=a 2)Find the sum of the infinite geometric series n=1 at the bottom of the sigma notation 20(-1/4)n-1 on the right side a.25 b.80/3 c.16 d.does not exist answer=c 3)Find the sum of ...

Calculus - Need help please

Given the following​ function, y=tan(pi-3x) 1)determine the interval for the principal cycle. (^ Type your answer in interval notation) 2)Then for the principal​ cycle, determine the equations of the vertical​ asymptotes 3)find the coordinates of the center&#...

Reading

I'm in seventh grade and working on my test for Reading. Everything is fairly simple and easy, but I came across a question that I cannot determine the answer for. The question is: "What is the meaning of the prefix pro- in the word 'proposed'?" The answer choices are: "above...

Electrolytic Cells

Hey...can u check my two answers for a and b and can u help on the rest? 8. An electrolytic cell consisting of an aqueous solution of NaCl is set up. Answer the following. a. What is the strongest oxidizing agent present? My answer: Na; sodium b. What is the strongest reducing...

Check my CALCULUS work, please! :)

Question 1. lim h->0(sqrt 49+h-7)/h = 14 1/14*** 0 7 -1/7 Question 2. lim x->infinity(12+x-3x^2)/(x^2-4)= -3*** -2 0 2 3 Question 3. lim x->infinity (5x^3+x^7)/(e^x)= infinity*** 0 -1 3 Question 4. Given that: x 6.8 6.9 6.99 7.01 7.1 7.2 g(x) 9.44 10.21 10.92 -11.08 -...

Math check

The number of ships to arrive at a harbor on any given day is a random variable represented by x. The probability distribution of x is as follows. (Give your answers correct to two decimal places.) x 10 11 12 13 14 P(x) 0.37 0.09 0.05 0.14 0.35 (a) Find the mean of the number ...

probobility

4 -letter "words" are formed using the letters A, B, C, D, E, F, G. How many such words are possible for each of the following conditions? (a) No condition is imposed. Your answer is : Preview (b) No letter can be repeated in a word. Your answer is : Preview (c) Each word must...

Calculus (please help!!!!)

Consider the parameterization of the unit circle given by x=cos(4t^2−t), y=sin(4t^2−t) for t in (−InF, INF). Describe in words and sketch how the circle is traced out, and use this to answer the following questions. (a) When is the parameterization tracing ...

Algebra 1

Can you check this one for me. Evalute the polynomial for x=1. 2x^2-2x+4 When x=-1, 2x^2-2x+4=8

math help

can someone check and see if i did this right x+2y=8 x-x+2y=8-x 2y=8-x 2y/2=8/2-x y=4-x y=4-x/2 y=4-1/2x

math

can someone check my answers if f(x)=4x-3 find f(-1) f(-1)=4*(-1)-3=-4-3= -7

algebra

Factor - check by multiplying Is this right? x^2-6x = x^2(x-6)???

algebra

Factor: check by multiplying x^2-6x Is this correct? x^2(x-5)

Algebra

synthetic division find f(-2) f(x)=2x^4+4x^3+2x^2+3x+8 -2 2 4 2 3 8 -4 0 -4 2 2 0 2 -1 10 f(2)=10 check f(x)=2(-2)^4+4(-2)^3+2(-2)^2+3(-2)+8 f(x)=10

math

please check. thanks. (8.3 x 10^-15) (7.7 x 10^4) = 6.391 x 10^-10 Is that right?

Algebra - check to see if correct

(a+7)/(a-4)+(9-5a)/(a-4) i got 6+40/a-4

Reiny

Can you check back at my last post again? Thanks.

Math

3/4(5/x-1/2)-5/3<1/3 3/20x-8-15<1/3 Check this for me where didi I go wrong

To Ms. Sue

please check my latest post, thanks

math

how do i find the product. Extimate to check or 0.5 x 28

Algebra

Could you please check my work? 3/(x-7)=2/(2x+1) 3(2x+1)=2(x-7) 6x+3=2x+-14 x=-4.25 I appreciate it.

Math

Solve the equation and check your solution. Thank You 3/v= v/2v+9

math

how do i write $3,337.55 on a check in words on?

math-please check

is the solution to 2x^2-4x+5... 1(+/-)((sqrt6)/2)i ??

algebra

explain how to check a solution of an equation.

science

Okay, I will check back later. Thank You Ms. Sue!!

math- check me

Solve the inequality for x. 16 <= 4x+4 I get x>=3 Is that right?

Algebra 2

How can you check if 3+i is a zero of the equation x^4-6x^3+6x^2+24x-40?

Algebra

Can someone check my answers? 1. 3/c - 4/3c = 5/3c 2. -3t/t-4 - 2t+4/4-t = -2t-4/t-4 3. z/3z^2 + 4/7z = 19/21z 4. 5x/2x-6 + x+2/3-x = 4x-2/2x-6 or 2(2x-1)/2(x-3)

Math

Divide and Check 4x^4y-8x^6y^2+12x^8y^6 _______________________ 4x^4y

math's

how do you check a Pascal's triangle with a calculator.

statistics

Why should we check if your data is binomial?

English

Could you please check these other sentenes. Thank you.

Math.

Can u check these: 56% of 144 = 80.64 81% Of 63. = 51.03 43% of 92. = 39.56 3%. Of 200 = 6 17%. Of 360 = 61.2 22% of 84 = 18.48

precalcus will someone check my homework

f(3)=-3/8 and (f-2)=-12 MY SOLUTION F(-2)=ab^-2 = -12 F( 3)=ab^ 3 = -3/8 b^5 = 12 * 3/8 = 32 b=2 12 = a(2)^2 12 = 4a a =3 f(x)=3(2)^x

math12

solve. check for extraneous roots.3^2x-4(3)^x+3=0

alg2

solve for 10/x^2-2x + 4/x = 5/x-2 3x/x+1 + 6/2x = 7/x 8(x-1)/x^2-4 = 4/x-2 check for any extraneous solutions! thanks!

bus101

exam number500600 to check on the answers what are they?

Alg1 / 2

solve the equation & check your solution

math

how can you check that the sum of 125+38+75 is 238

Algebra..

f(x)= x^2+3 ; g(x)=3x-1 Check These Please? 1.(fg)(-1) = 5 2. (f o g)(1) =10 How would you solve this? 1. (g o f)(x)

Algebra pls check

Is this right ? -2(w-30) =-6w -2w -60 = -6 w +2w =+2w -60 = -4w _____________ -4 = -4 15 = w

MS Sue

can you plz check my english answers

math

Solve the equation and check your solution 2/5+1/y-5=y-7/5y-25.

To MS SUE

Can u please check my math answers

Math

Solve and check each equation 1a. 12n=36 n=3 1b. n-5=8 n=13

english

i need help with chapter 10 and 11 sentence check 2

To Drbob222

Please check my post again

HELP IN SCIENCE ASAP!!

PLEASE CHECK ANSWERS!!

English

I need help on sentence check 2 chapter13

math

how can we check that 46/100 is equal to about 39/85?

Math

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

algebra

can you solve this? I need to check my work. 2(x-1)^2=50

Math Check

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

Math

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

math

CAN ANYONE CHECK THIS FOR ME PLEASE! NEED IT ASAP.. 5 < x -2 < 11 a. 5 < x < 11 b. 7 < x < 13 **** c. 7 < x < 11 d. 5 < x < 16

Math please check

p= -3; q=2 2q(p+q)+3pq I got -22

Math

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

English

I need help for final check: chapter 16

Maths Algebra

Solve and check the result.3(5x-7)-2(9x-11)=4(8x-13)-17

Math

Please check to see if this is correct? y-5 = -2 (x-3) y-5 = -2x + 6 y = -2x + 11

math please check

(19-3)*(11-2)+8 squared=209

Math

m•10-m•2=8 I think m=1 please check my work

Math (Check answers)

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

Math(check answers)

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

Physics

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

Calculus

I am doing the AP calculus review, these are the questions I have no Idea on how to do: 1. if 0<= k <=pi/2 and the area under the curve y-cosx from x=k to x=pi/2 is 0.2, then k= 2. let F(x) be an antiderivative of (ln x)^4/x If F(1)=0, then F(9)= 3. What is the equation ...

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