Friday

December 19, 2014

December 19, 2014

Total # Posts: 237

**Math**

What are some situations in which estimation is useful in real life?
*December 14, 2014*

**algebra**

-e^-3.9n-1 - 1 = -3
*December 11, 2014*

**Algebra 2**

yes, but i do not know where to go from here
*December 11, 2014*

**Calculus **

With the following coordinates (16,46) (18,64) (20,60) create three formulas using Y+Ax^2+Bx+C then solve for A,B, and C to form the final equation.
*December 3, 2014*

**Calculus**

5) Evaluate the definite integral. On the integral from 1 to e^7 ∫dx/x(1+lnx)
*November 25, 2014*

**Calculus**

2) If f(x)=∫t^2dt not he integral from 4 to x^3 then f′(x)=?
*November 25, 2014*

**Calculus**

20) Evaluate the definite integral. On the integral from e to e^3 ∫dx/xl(nx)^(1/2)
*November 25, 2014*

**math**

a car traveling 8 m/s suddenly brakes to a complete stop. THe stopping time was .36 seconds. what is the acceleration of the car?
*November 24, 2014*

**Calculus**

11) Find the following indefinite integrals. ∫x/(x+9)^(1/2)dx
*November 24, 2014*

**Calculus**

10) Evaluate the integral by making the given substitution. ∫sec(5x)tan(5x)dx u=5x
*November 24, 2014*

**Calculus**

9)Evaluate the indefinite integral. ∫x^8e^(x^9)dx
*November 24, 2014*

**Calculus**

6) Evaluate the indefinite integral. ∫cosx/(7sinx+35)dx
*November 24, 2014*

**Calculus**

5) Evaluate the definite integral. On the integral from 1 to e^7 ∫dx/x(1+lnx)=?
*November 24, 2014*

**Calculus**

4) On the integral from 1 to 2 ∫(4x^2+4)/x^2dx =?
*November 24, 2014*

**Calculus**

2) If f(x)=∫t^2dt on the interval from 4 to x^3 then f′(x)=?
*November 24, 2014*

**caculus**

Evaluate the indefinite integral. ∫(arcsinx)^6/(1−x^2)^(1/2)dx
*November 24, 2014*

**Calculus**

The rectangles in the graph illustrates a left endpoint Riemann sum for f(x)=−(x^2/4)+2x on the interval [3,7]. The value of this left endpoint Riemann sum is? The rectangles in the graph illustrates a right endpoint Riemann sum for f(x)=−(x^2/4)+2x on the interval...
*November 17, 2014*

**Calculus**

The rectangles in the graph illustrate a left endpoint Riemann sum for f(x)=x^2/8 on the interval [4,8]. The value of this left endpoint Riemann sum is? The rectangles in the graph illustrate a right endpoint Riemann sum for f(x)=x^2/8 on the interval [4,8]. The value of this ...
*November 17, 2014*

**Calculus**

Find the general indefinite integral ∫ v(v3+5)2dv
*November 12, 2014*

**caculus**

Given f″(x)=−4sin(2x) and f′(0)=3 and f(0)=−6. Find f(π/6)
*November 12, 2014*

**calculus **

1) A particle is moving with acceleration a(t)=36t+10. its position at time t=0 is s(0)=16 and its velocity at time t=0 is v(0)=9. What is its position at time t=11?
*November 12, 2014*

**Calculus **

9) The rectangles in the graph illustrate a left endpoint Riemann sum for f(x)=(x^2/8) on the interval [4,8]. What is the value of this left endpoint Riemann sum? The rectangles in the graph illustrate a right endpoint Riemann sum for f(x)=(x^2/8) on the interval [4,8]. what ...
*November 12, 2014*

**calculus **

7) Consider the function f(x)=(10/x^2)−(2/x^6). Let F(x) be the antiderivative of f(x) with F(1)=0. Then F(x)= ?
*November 12, 2014*

**Calculus **

Consider the function f(x)=(x^2)e^(14x) f(x) has two inflection values at x = C and x = D with C≤D where C is and D is Finally for each of the following intervals, tell whether f(x) is concave up or concave down. (−∞,C]: [C,D]: [D,∞)
*October 28, 2014*

**Calculus **

A ball is thrown up on the surface of a moon. Its height above the lunar surface (in feet) after t seconds is given by the formula h=308t−(14/6t^2) Find the time that the ball reaches its maximum height. Answer = Find the maximal height attained by the ball Answer =
*October 28, 2014*

**Calculus **

The top and bottom margins of a poster are 2 cm and the side margins are each 8 cm. If the area of printed material on the poster is fixed at 380 square centimeters, find the dimensions of the poster with the smallest area. Width = Height =
*October 28, 2014*

**Calculus **

A Norman window has the shape of a semicircle atop a rectangle so that the diameter of the semicircle is equal to the width of the rectangle. What is the area of the largest possible Norman window with a perimeter of 49 feet?
*October 28, 2014*

**Calculus **

A rectangle is inscribed with its base on the x-axis and its upper corners on the parabola y=4−x^2. What are the dimensions of such a rectangle with the greatest possible area? Width = Height =
*October 28, 2014*

**calculus**

3) f(x)=x^(2)/6x^(2)+4. List the x values of the inflection points of f.
*October 28, 2014*

**Calculus**

Find the critical numbers of the function f(x)=x^1/6−x^−5/6.
*October 20, 2014*

**Calculus**

I know how to take the derivative the other parts i don't know how to do...
*October 20, 2014*

**Calculus**

Consider the function f(x)=ln(x)/x^6. For this function there are two important intervals: (A,B] and [B,∞) where A and B are critical numbers or numbers where the function is undefined. Find A Find B For each of the following intervals, tell whether f(x) is increasing or...
*October 20, 2014*

**calculus**

9) Find all critical numbers of the function f(t)=9t^2/3+t^5/3
*October 20, 2014*

**Calculus**

7) Consider the function f(x)=x2e4x. For this function there are three important intervals: (−∞,A], [A,B], and [B,∞) where A and B are the critical numbers. Find A and B For each of the following intervals, tell whether f(x) is increasing (type in INC) or ...
*October 20, 2014*

**Calculus**

f(x)=4x3−18x2−480x−2 is decreasing on what interval? It is increasing on what interval(s) ? The function has a local maximum at ?
*October 20, 2014*

**Calculus**

18) Find all numbers c that satisfy the conclusion of the Mean Value Theorem for the following function and interval. Enter the values in increasing order and enter N in any blanks you don't need to use. f(x)=2x/6x+12,[1,4]
*October 20, 2014*

**Math**

18) Find all numbers c that satisfy the conclusion of the Mean Value Theorem for the following function and interval. Enter the values in increasing order. f(x)=2x6x+12,[1,4]
*October 20, 2014*

**Math**

17) Consider the function f(x)=3x3−3x2+4x+2 Find the average slope of this function on the interval (−3,5). By the Mean Value Theorem, we know there exists a c in the open interval (−3,5) such that f′(c) is equal to this mean slope. Find the two values ...
*October 20, 2014*

**Math**

16) Consider the function f(x)=2x3−6x2−90x+5 on the interval [−6,7]. Find the average or mean slope of the function on this interval. By the Mean Value Theorem, we know there exists at least one c in the open interval (−6,7) such that f′(c) is ...
*October 20, 2014*

**calculus**

The answer was wrong!
*October 7, 2014*

**calculus**

An airplane flys at a constant altitude of 2 miles and a constant speed of 600 miles per hour on a straight course that will take it directly over a kangaroo on the ground. How fast is the angle of elevation of the kangaroo's line of sight increasing when the distance from...
*October 7, 2014*

**Calculus**

An airplane flys at a constant altitude of 2 miles and a constant speed of 600 miles per hour on a straight course that will take it directly over a kangaroo on the ground. How fast is the angle of elevation of the kangaroo's line of sight increasing when the distance from...
*October 7, 2014*

**calculus**

Find the slope of the tangent line to the curve (2x+4y)^1/2+(2xy)^1/2=13.4 at the point (6,5).
*October 7, 2014*

**Calculus**

Suppose that two boats leave a dock at different times. One heads due north, the other due east. Find the rate at which the distance between the boats is changing when the first boat is 56 miles from the dock traveling at a speed of 35 miles per hour and the second boat is 20 ...
*October 7, 2014*

**English**

Or you could say : I looked towards the right.
*September 28, 2014*

**physics**

A baseball hit just above the ground leaves the bat at 22 m/s, at 53.6° above the horizontal. What is the maximum height of the ball above the ground? Help!!!
*September 21, 2014*

**physics**

"A projectile is fired horizontally at 14.9 m/s from the edge of a 7.05-m-high cliff and strikes the ground. Find the horizontal distance the projectile traveled." I have no work cause I have no idea how to do this...
*September 21, 2014*

**math**

what is the temperature at the top of the stratosphere if the sea level temperature was 22 degrees and air temperature decreases 6 degrees every 1km
*September 16, 2014*

**Álgebra **

Solve (z +2)^ 4/3 = 4 where z is a real number.
*May 14, 2014*

**Alegbra**

Wow your reply fast, that's good keep it up :)
*March 26, 2014*

**Alegbra**

Thank you so muchh Damon for your help!
*March 26, 2014*

**Alegbra**

So I am rightt
*March 26, 2014*

**Alegbra**

-0.33 right?
*March 26, 2014*

**Alegbra**

? : 1.5 -0.33 -0.5 6.33
*March 26, 2014*

**Alegbra**

Can you do one more? Point G is located at 3,-1 and point H is located at -2,3. Find the x value for the point that is 2 over 3 the distance from the point G to point H.
*March 26, 2014*

**Alegbra**

Thank you Damon :)
*March 26, 2014*

**Alegbra**

Yesh, sorry about that Damon, thank you so much <3
*March 26, 2014*

**Alegbra**

I don't know how to submit a website so i pressed on enter and space .. You'll need to erase it and connect them back together to visit the website
*March 26, 2014*

**Alegbra**

Can you guys please help? : jiskha. com /display.cgi?id=1395865500
*March 26, 2014*

**Alegbra**

Thanks! So, 0.5?
*March 26, 2014*

**Alegbra**

Sorry Damon, but that is the wrong answer :(
*March 26, 2014*

**Alegbra**

Find the y value for the point that splits segment EF in half if point E is located at 5,-2 and point F is located at -1,3.
*March 26, 2014*

**health**

whos on here for ashworth.?
*March 3, 2014*

**calculus**

The rabbit population on a small island is observed to be given by the function P(t)=120t−0.4t4+700 where t is the time (in months) since observations of the island began.
*February 1, 2014*

**geometry**

can not figure out how to simplify a problem into scientific notation
*January 29, 2014*

**Science**

What is the difference between photosynthesis and cellular respiration?
*January 10, 2014*

**Science**

Correct I think, just follow your instincts the first answer you think it is its most likely that one, don't cheat, i understand you just need help but you should go to your book. Hailey
*November 26, 2013*

**Science**

Compounds are such substances that can't be separated by chemical means like potassium chloride, sodium chloride(common salt), potassium aluminium sulphate(alum).
*October 3, 2013*

**What is 30 x 6?**

I did,, 30 30 >60 30 30 >60 30 30 >60 +___ 180
*September 23, 2013*

**math**

If you drop a ball from 15 feet and every time it bounces it returns to 80% of its previous height, how high does it bounce after it n-th bounce?
*September 11, 2013*

**Algebra 2 **

Tickets to a local performance sold for $3.00 for adults and $1.50 for children. If 170 tickets were sold for a total of $480 dollars, how many adult and children tickets were sold?
*September 2, 2013*

**Form a polynomial f(x)**

Form a polynomial f(x) with real coefficients having the given degree and zeros. Degree 5; Zeros: -3; -i; -6+i F(x)=a ( )
*March 27, 2013*

**College Algebra! help!**

Form a polynomial f(x) with the real coefficients having the given degree and zeros. Degree 5; Zeros: -4; -i; -2+i f(x)=a( )
*March 26, 2013*

**maqth**

expain the steps you follow to multiply by a 1 digit number
*March 12, 2013*

**math**

begin at the lookout tower travel east 7 units and north 4 units where are you
*February 21, 2013*

**math**

can i get help on 4 over 9 plus 3 over 4... in simplest form
*February 17, 2013*

**Geography **

Russia has: A. Small reserves of mineral resources B. huge reservations of mineral resources C. Vast petroleum deposits but few minerals D. Large forest lands, but not much petroleum
*February 1, 2013*

**maths**

A rectangular paddock is 164 metres long and 95 metres wide. How many metres of fencing are required to enclose the area?
*January 28, 2013*

**Maths**

Ms. Sue is right! 3*20=?
*December 9, 2012*

**Social studies**

What were boomtowns and ghost towns?
*December 8, 2012*

**Social Studies**

How did mining help the west grow?
*December 8, 2012*

**algebra**

Write a formula that relates temperature t in degrees Fahrenheit at altitude h (in thousands of feet) and a ground temperature of 65ºF. State any restrictions on h. b. Find the temperature at 11,000 ft above Earth’s surface.
*October 16, 2012*

**math**

if the simple interest on $2000 for 8 years is $960, then what is the interest rate?
*October 12, 2012*

**math**

I am the smallest 2 digit odd number whose digits add to 2. i look the same backward and forward and so does my square product. my square product is a 3 digit number. what number am i and what is my square product?
*September 24, 2012*

**Algebra**

Find the product: -9x(-6x2 + x + 5) A.54x2 – 9x – 45x B.-15x3 – 8x2 – 4x C.54x3 + x + 5 D.54x3 – 9x2 – 45x
*September 23, 2012*

**Math**

I am a 2- digit number . The sum of my digits is 12 . My tens digit is 4 more than my ones digit. What number am I ?
*September 19, 2012*

**math**

Number Theory find the two operation signs that are missing from the following equation. 4__15__25=35
*September 17, 2012*

**math**

Number Theory 4__15__25=35
*September 17, 2012*

**spelling**

What do you call a girl who likes to swim? a ______________in water What do you see when you sit in the yard at sunrise? You see___________on the lawn. stately,regal,_______________
*September 17, 2012*

**reading**

i had to read these 2 passages on was a silly poem about birds ball and the othe was a passage about woodpeckers that was true ihave to give to thngs in common and 2 things different iam trouble giveing the different ones
*September 13, 2012*

**math**

Which number has exactly 4 different factors? 7,9,10,or 16
*September 12, 2012*

**math**

I lined all three numbers up and added them together.
*September 12, 2012*

**math**

last year bill traveled 6,589 miles on business. Donna traveled 4,309 miles and Ursula traveled 1,028 miles my answer is 11,926 miles use what you know about solving word problem to explain how you found your answer. use words and/ or numbers in you explanation. how do i do ...
*September 12, 2012*

**language arts**

hw do i show you my answers
*September 12, 2012*

**Language Arts**

Thank you for your help!
*September 12, 2012*

**Language Arts**

Please save me a seat,or I will stand in the back of the auditorium. The musicans are already on stage. Are you enjoying the contest? Wow, the singer is fabulous! My family attended the contest, and later we all went to a restaurant. Are my punctuations and commas right in ...
*September 12, 2012*

**Language Arts**

how do i send you my answers for you to check
*September 12, 2012*

**Language Arts**

Mke went last week, but we are going this week. Will your mother take us, or should we go on the bus?
*September 12, 2012*

**Language Arts**

ad the correct punctuation or a comma Please save me a seat or i will stand in the back of the auditorium. the musicians are already on stage Are you enjoying the contest Wow, the singer is fabulous My family attended the contest and later we all went to a restaurant.
*September 12, 2012*

**Language Arts**

how do i write these sentences as compound useing commas and but or to combinethem The circus is finally here. we can hardly wait to go. Mike went last week. we are going this weekend. will your mother take us? Should we go on the bus?
*September 12, 2012*