Calculus (Answer Check)
87,865 results, page 86

math
How can you use multiplication to check if a quotient is correct? 
math (please double check my answers)
4. Prove: 2^n + 2^n = 2^n+1 
pre algebra homework check
Solve the equation. x ^2 + 15 = 51 x=±6??? 
pre algebra check
Find the product and simplify. m^2(3m^2) =3m^4???? 
Science/Check
Testable statement or prediction..... Is That Hypothesis? 
Algebra..
Check These Answers Please? f(x)= x^2+3 ; g(x)=3x1 1. (f+g) =x^2+3x+2 2. (f+g)(3) = 20 3. (fg)(x) = x^2+3x4 4.(fg)(x) = 3x^3+1x^29x+3 5. (fg)(x) =5 6. (f/g)(x) =(x^2+3)/(3x1) Compostitions of functions : 7. (f o g)(x) =3x^2+4 8. (f o g)(x) =10 
math 116
week 5: self check answers 
algebra check please
7(4  t) = 84 i got: 28  7t = 84 28 = 28 7t = 112   7 = 7 t = 16 is this right : 16 
algebra
Solve the equation. Check your solution. 164=x59 
Math check
If the radius of a circle is 5 cm what is the area? Formula A=pi r^2 A=3.14×5×5 A=78.50 
math
3L=7 what would L be? i was multipling  7*5= 35 then divide by 3..but that 5 does not check right 
science
Can someone help me with mechanics. I need to check my answers 
math check PLEASE
which fraction si greater than 7/5? a.5/9 b.6/11 c.1/2 d.4/9 i think its A 
phi 208
To check my reading week 4 quiz 
Help
Ms.Sue can you check my answers please their down below. 
S.S.
Ms.Sue can you please check my questions they are down below. 
Maths
Quadratic Graphs Y=x^27 These are my values can you please check X=4 so y=9 X= 3 so y=2 X=2 so y = 3 X= 1 so y=6 X=1 so y=6 X=2 so y=3 
Math
0.8(4+a)=5.6a how to check this so the answers both equal out? 
7th grade math
Can you check these problems? 1. 4x^2 + 3x  4x +5 = 4x^2  x + 5 2. m  n + m  n  n = 2m  3n 3. (7x + 5  3y)  (3x  5 +4y) = 7x + 3x 3y + 4y + 0 = 10x  y = 0 4. m/8  9 = 5 m/8 = 5 + 9 m = 14/8 m = 7/4 = 1 3/4 
Math
Solve the equation. Check for extraneous roots. 4^2x4^x20=0 
Earth Science
Please check down below. 
prealgebra
Please check 42=4n+17n N=3.09 13+10c4=29 C=3.8 
Algebra 1
solve each system by substitution. check your answers 4y +3 = 3y +x and 2x +4y =18 
Math please
Hi nobody helped me can you check on what I asked? Thank us 
Suhaib
Solve x^n by abinitio method check ur ability nw? 
Math please check my work
4x(3y)  2x + xy I got 64. Is that right? 
Math Please check
4x+3y=12 Solve for y I got: 12+4x/3 Is that right? 
Circles Geometry
Can someone check if my answers are correct? 
math (check answers)
Evaluate the expressions when x = 1/2 and y = 3. 1. 4xy 4 * .5 * 3 = 6 2. 6x  3y 6(.5)  3(3) 3. 5y + 8x + 1 5(3) + 8(.5) + 1 = 20 4. x^2  y + 2 0.5^2  (3) + 2 = 4.75 5. 2x + 4 (x + .5) + 7 2(.5) + 4 (3 + .5) + 7 = 2 6. 2(4x  1)^2  3 2(4(.5)  1)^2  3 = 1 
Math
Solve the equations below. Check your solutions. 3x5/2=4x+1/4 
Math
Solve the equations below. Check your solutions. 8/k=14/k+3 
Math
Solve the equations below. Check your solutions. 3x5/2=4x+1/4 
Math
2+3{6(19]=? I got 14. I just need you to check if its right 
English
What are the answers to unit 3 lesson 2 quick check 
Ela
Can you help me with the final check:Relating to Parents chapter 17 
Pi
How do u describe how to check an algebra question??? I need help ASAP 
Math
solve the inequality: 3(4a)=6 1) 6 2) 2 3) 2 4) 6 I think #1 is correct. Can you check? Thanks 
algebra 2
solve and check for estaneous solutions 4 ^3sqrt(3x3)^2+2=38 
Math
There's a triangle the numbers on each sides are 22 25 and 11 What is it's perimeter and area? Answer: P is 58 A is 345 There's a rectangle the numbers on 2 of the sides says 4 and 1 What is the Perimeter and area? Answer: P is 10 and A is 4 There's a rectangle the numbers are... 
are these correct
Here is the questions it says to simplify: xyy^2 x^3 and here is the answer x^4 y^3  here is another one m^3 pmxm^2 x^3 p^5 and here is the answer m^6 p^6 x^4  and here is another one xm^2 xm^3 x^3 m and here is the ... 
math help
"Three cards are randomly selected from a standard 52card deck. What is the probability of getting 3 hearts or 3 numbers less than 6 (count aces as 1)?" I think the answer is 0.0645, but I'm not sure if this is right. Could someone check this? "Half of a circle is inside a ... 
us history
which answer best explains the contributions of women during the revolutionary war? a) women were in charge of the horses and artillery during the revolutionary war. b) women often poisoned British troops stationed in their towns during the revolutionary war. c) women served ... 
Honors Chemistry (check answers)
On a worksheet we got, we have to balance out chemical reaction equations then define what kind of reaction it is (synthesis, decomposition, single/doublereplacement). Would someone be willing to check my answers, please? Thanks!! 1. c) BaO + H2O ==> ________ (synthesis... 
calculus
A 160lb man carries a 25lb can of paint up a helical staircase that encircles a silo witha radius of 20 ft. If the silo is 90 ft high and the man makes exactly three complete revolutions, how much work is done by the man against gravity in climbing to the top? I looked at ... 
Calculus
I don't understand what the graph is suppose to show and what the integral equation is suppose to mean. How would I use the graph to answer the questions? f is the differentiable function whose graph is shown in the figure. The position at time t (sec) of a particle moving ... 
Math calculus 2
The revenue, in millions of dollars, for a company in year t is given by the function: R(t)=15*e^(0.08*t), 0≤t≤15 and the cost, in millions of dollars, to run the company in year t is approximated by: C(t)=12*e^(−0.04*t), 0≤t≤15 where t is the number of years after ... 
physics
A batter hits a fly ball which leaves the bat 0.90 m above the ground at an angle of 61° with an initial speed of 29 m/s heading toward centerfield. Ignore air resistance. (a) How far from home plate would the ball land if not caught? (b) The ball is caught by the ... 
Calculus
If you had a computer that could track the number of cereal boxes on the shelf of a market continuously over a 1week period would you expect the graph of the number of boxes on the shelf versus time to be a continuous (unbroken) curve? Explain your reasoning. I think the ... 
Spanish Check
Hello! Can someone please help me check my answers? I really appreciate it and thanks! Directions: Rewrite the following English sentences in correct Spanish form. The verb you will just is limpiar. 1.) I cleaned the house. 2.) Has Juan cleaned the house? 3.) They cleaned the ... 
Math/Standard and scientific notation
Express each measure in standard form. (One more thing by the way you need this few prefixes) Tera= 10 to the 12th power Giga= 10 to the 9th power Mega= 10 to the 6th power Kilo= 10 to the 3rd power Pico= 10 to the 12th power Nano= 10 to the 9th power Micro= 10 to the 6th ... 
Can comeone check my answer for me. Many Thanks!
A set of data is normally distributed with a mean of 1000 and standard deviation of 100. · What would be the standard score for a score of 1100? · What percentage of scores is between 1000 and 1100? · What would be the percentile rank for a score of 1100? A. z(1100)= (1100... 
Math
The air pressure in a tire is 150.000 kPa. The internal surface area of the tire is 1150.000 cm^2. Determine the total force applied by the air to the tire. (Round to 3 decimal places) Answer = kN 150.000 kPa x 1000 = 150000 Nm 1150.000 cm / 100 cm = 11.5 m Force = Pressure x ... 
Calculusss ( pleassee someboddy heelp )
an airplane flying due east at 400 km/h pasess over an airport 12 minutes before a second plane flying south 30 degrees west at 500 km/h.if the airplanes are at the same altitude how fast will they by seprating when the seccong plane is over the airport.?When will they be the ... 
Brief Calculus
Last one for today... As the financial consultant to a classic auto dealership, you estimate that the total value (in dollars) of its collection of 1959 Chevrolets and Fords is given by the formula v = 303,000 + 1,020t2 (t ¡Ý 5) where t is the number of years from now. You ... 
Chemistry(Please check)
1) Which statement below is incorrect if any? a)when gas is at STP, the pressure of the gas is at 1.00 atm. b)when a gas is at STP, the temperature of the gas is 25 degrees celsius c)at STP the molar volume of a gas is 22.4L d)at STP the molar volume of all gases are the same ... 
calculus
A display case is in the shape of a rectangular box with a square base. Suppose the volume is 21 cubic ft and it costs $1 per square ft. to build the glass top and $0.50 per sq. ft. to build the sides and base. If x is the length of one side of the base, what value should x ... 
math
sums and differences of rational algebraic expression answer the following perform the indicated operation reduce answers to lowest term 2x/x^22x15  x2/3x^2+9 another is t/2rs^2  2r/3rst + 3s/30r^2t another is 3x/2x3  2x/2x+3 + 3/4x^29 please answer this i need it ... 
physics
In a room that is 2.13 m high, a spring (unstrained length = 0.30 m) hangs from the ceiling. A board whose length is 1.58 m is attached to the free end of the spring. The board hangs straight down, so that its 1.58m length is perpendicular to the floor. The weight of the ... 
Geometry
Writing indirect proofs. Can someone please check for me. I am not sure If this is correct.Thanks much Given: triangle ABC angle B=120 degree Proof: Triangle A does not equal 60 degree Plan: Using an indirect proof, using the paragraph method My answer. Assume temporarily that... 
Math
Hi, I am getting very frustrated. I am doing an online homework for chemistry and it's telling me to round to the nearest WHOLE number. So the answer I got was 1435.650.... And I typed in 1436. and said I was wrong and so I tried it again and typed 1.4 x 10^3, wrong again. ... 
MATH
I'M IN 6 GRADE PLEASE EXPLAIN HOW TO RENAME FRACTIONS TO DECIMALS AS EASY AS YOU CAN You divide the fraction by the the number at the top by the number at the bottom and get a decimal For example 5  = 6 doesn't go into the 5 so we add a 0 and a point and then we add a zero ... 
MATH I just need explanation very easy ( for you)
Why do I get different answer when I use the quadratic equation? In finding the zeros of a function. I used factoring and completing the squares and it gave me the same answer.. How am I going to defend that my answer using quadatic formula is also right ? 
Physics (please check)
A 6.0kg block is released from rest 80m above the ground. When it has fallen 60m its kinetic energy is: I got 1200J as my answer mgh=(6.0*9.81* 60m)=3531.6 PE + KE= (ME + KE) 3531.6 + KE= (6.0*9.81*80m) KE= 1177.2 is that right A 6.0 Kg block is thrown up from a point 20m ... 
Calculus URGENT test tonight
Integral of: __1__ (sqrt(x)+1)^2 dx The answer is: 2ln abs(1+sqrt(x)) + 2(1+sqrt(X))^1 +c I have no clue why that is! Please help. I used substitution and made u= sqrt(x)+1 but i don't know what happened along the way! Your first step was a good one. next, let u = sqrt x + 1 ... 
English
please can u check my work. Thank you. example of a passive sentence: Macaws eat nuts and berries. Nuts and berries are eaten by the Macaw. 1) Capuchin monkeys eat fruit, insects, leaves, small birds and frogs. my answer: Frogs, small birds, leaves, insects and fruit are eaten... 
need answer to check sons work
alica finished the race 3.75 seconds before kaye. donna finished the race 5.09 seconds after carmen. carmen finished the race 10 seconds before kaye. ardens finished 4.89 seconds after kaye. how many seconds earlier did carmen finish than anders 
Check This Statistics Homework
1.) Based on a survey of a few thousand people, a newspaper reporter wants to draw conclusions about how a country’s citizens in general feel about the war in Iraq. At this point, is the reporter mainly concerned with data production, displaying and summarizing data, ... 
Language. Check answers
My last questions. Direction: Proofread for correct verb forms. If sentence is already correct write C 1. Luis Ortega has been describe as history's greatest rawhide braider. My answer: Luis Ortega have been describe as history's greatest rawhide braider. 2. For years, ... 
READING
Well this is for the I know why the Caged bird discuss what Maya Angelou means by the title of her autobiography A bird in a cage is not free, but a captive. Canaries, for example, sing; why do you suppose that is? Because she is trapped she can’t do anything about just sing... 
Health CHECK MY ANSWERS PLS!!
**= my answer 5. An accident chain always contains the A. problem. B. unsafe action. ** C. solution. D. witnesses. 6. (TRUE OR FALSE) By taking safety precautions, individuals can remove some of the opportunity for crimes to occur. A. true. B. false.** 8. (TRUE OR FALSE) All ... 
Calculus Question! ASAP!
Hello! I have this problem: x(dx)/sqrt(9x^2) I was wondering why I can't use trig substitution and substitute sqrt(9x^2) for sqrt(1sec^2) and having: integral x = 3sin(theta) dx = 3cos(theta)d(theata) integral 3sin(theta)(3cos(theta))/3cos(theta) having the 3cos(theta) ... 
Alg 2/trig
I have the answers to the question, but I have no on how to get the answers. State the quadrant in which theta lies. Cos X < 0 and Sin X > 0 (Answer is 2) Tan X < 0 and Sin X < 0 (Answer is 4) Cos X > 0 and Tan X > 0 (Answer is 1) Cot X < 0 and Sec X < ... 
Math
1. which is a rule that describes the translation of point from (5, 4) to (1, 2) A (x,y) > (x  4, y  2) B (x,y) > (x + 4, y  2) (my answer) C (x,y) > (x + 4, y + 2) D (x,y) > (x  4, y + 2) 2. the ordered pairs (2, 17) and (5, 35) are solutions to ... 
adverb question
i have to fill in the blank: adverbs of time tell ___ something happens. I wrote: when adverbs of frequency tell ___ something happens. i wrote : how often or is it also when? can you check this? i have an ARTICLES EXCERCISE 1) ARTICLES ARE USE WITH: a adjectives only b nouns ... 
Algebra I  Answer check
2. a) 7^12/7^4 = 7^8 b)x^11/x^5 = x^6 c)12x^5/3x^2 = 4x^3 d)7x^6y^3/14x^3y = .5x^3y^2 5. a) (2x)^3(3x^2)^4 = 648x^11 b)(5x)^7/(5x)^4 = 25x^2 c)(2x)^5/8x^3 = 4x^2 d)(4x^2y^5)(3xy^3)^3 = 12xy^4 6. How long does it take light to travel from the Sun to Earth? Answer to the ... 
Math (Calculus) (Related Rates)
A boat pulls away from a dock at 2 m/s, but the operator has neglected to remove the tow rope used to pull the boat up to the dock. This rope runs thru a pulley which is attached to the dock at a point 1 m higher than the point at which the rope is attached to the boat. A) How... 
Chemistry (Check)
Thanks but can you check another one for me The Valence electrons largely determine the blank of an element and are usually the only electrons used in blank. T have the first one as chemical properties, whats the second blank chemical properties would work for the first blank ... 
Math  Statistics
Suppose that the mean number of customers who arrive at the checkout counters each minute is 4. Create a Poisson Distribution with u (lamda) = 4 for x = 0 to 20. Compare your results to the histogram. 20 random numbers are generated with a Poisson distribution for u (lamda... 
Math
A goblin miner earns 1 cent the first day, 2 cents the second day, 4 cents the third day, 8 cents the fourth day. How much will the miner earn in 30 days? OkI know to double the answer each time until 30which would be:5,368,709.12 Is there an equation to make this easier? ... 
math
Complete the following probability distribution table and then calculate the stated probabilities. Outcome a b c d e Probability 0.1 1Your answer is correct. 0.43 0.1 0.27 (a) P({a, c, e}). 2Your answer is correct. (b) P(E ∪ F), where E = {a, c, e} and F = {b, c, e}, P(E... 
derivative
I am finding the second derivative of (x^2)(y^3) = 1 2x(y^3) + (x^2)(y')(3y^2) = 0 And I simplified the answer to y'= (2y)/(3x) so it would be... [(2y')(3x)(2y)(3)]/(9x^2) and it's simplified to (6xy'+6y)/(9x^2)= y'' I could plug in (2y)/(3x) in place of y'. The correct ... 
Math  Absolute Value Inequalities
Please help me with the following: Which of the following expressions is equivalent to x – 2 < 3? A. –3 > x – 2 < 3 B. –3 < x – 2 < 3 C. x – 2 < 3 and x – 2 < –3 D. x – 2 < 3 or x – 2 < –3 I know the answer isn't A because I ... 
math
math . please help me to answer this i really don't know what is the answer I need the answer later i have 2 more hours to finish this. please help me Find the value of x if the geometric mean of 2x and 19x2 is 7x2 
thermodyn. please check work
What is the sign of heat(Q), Work(W), or Temperature for these following situations. Say if it's +,, or 0. 1)You hit a nail with a hammer: +W, Q=0, T=0 2)You hold a nail over a Bunsen burner: Q=+Q, Temp:constant, W=0 3)You compress the air in a bicycle pump by pushing down on... 
math
jen can run at 7.5 m/s and mary at 8.0 m/s. on a race track jen is given a 25 m head start, and the race eds in a tie. how long is the track? let x = distance run by jen. x + 25 = distance run by mary. time jen = d/r = x/7.5 time mary = d/r = (x+25)/8 Since they arrived at the... 
Geometry
What is the radius if the area of the circle is: 4x^2(PI) My answer 4x^2(pi)=(pi)(r)(2), 16x(pi)=(pi)(r)(2), 16x/pi=5x. 5(PI) My answer 5(pi)=(pi)(r)(2), sqare root of 5 is 2.23, which rounds to 3, 3(pi)=square root of 9. What is the area of the sector if the radius is 6 and ... 
Microeconomics
Check and correct my answers please. Thank you. Trunks owns a junk yard. He can use one of two methods to destroy cars. The first method involves purchasing a hydraulic car smasher that costs $200/year to own and then spending $1 for every car smashed into oblivion. The second... 
Calculus
Find the derivative w/ respect to x: g(x) = ln(sec(x)) 
Calculus
find anitderivative of 30sqroot(x+4) What is the derivative of (x+4)^(3/2) ? 
pre calculus
how do you find the root(s) of the equation x^2+3x4=0 
calculus
how can I calculate this deriivative: 1/(sin(xsinx))? 
Calculus
Problem 49. Find the critical values f(x) = (4x^2  9) / x 
Calculus 2
Find the length of the spiral r=a(Theta) on [0,Pi] 
calculus
If 4x^(2)+5x+xy=4 and y(4)=20, find y'(4) by implicit differentiation. I got y'=(8x5y)/(x) 
calculus
calculate the indefinte integral (x^2+2x+3)/(sqrt of x) 
Calculus
If A=125e^kt and A=200 when t=3, find the value of k. 
Calculus
Find the coefficient of the x^2 term in the expansion of (3x  (2/x^2))^8 
Math
Find dx/dy by implicit differentiation x^2y+y^2x P.S: It's calculus 
Calculus III
(24cos(8x))/(1+(sin^2(8x))) Integrated from (pi/16,pi/16 
Calculus
Average Value of a Function f(x) =(1)/(X3)^2 in the interval [0,2]