Friday

May 29, 2015

May 29, 2015

Total # Posts: 258

**algebra**

1) a line has a slope of 5. it passes through the points (1,4) and (6,y). what is the value of y? explain how you found your answer. 2) write a direct variation equation that relates x miles to y kilometers.
*May 19, 2015*

**Math**

Find the number of distinguishable permutations of the following letters: M, I, S, S, I, S, S, I, P, P, I.
*April 24, 2015*

**Math**

Jeremy uses the linear function G=12h+50 to represent the grade, G (in points out of 100), that he can earn on an exam as a function of h, the number of hours he spends studying for the exam. 1.) Identify the slope and y-intercept of Jeremy's function and explain what they...
*April 9, 2015*

**English check **

1. Which description fits the limerick about the fellow named Hall? 1)a poem about something funny with five lines. ****** 2)a serious poem without rhyme 3)a love poem with rhymes and rhythm 4)a poem about nature with three lines 2. The rhythm and rhyme patterns of the ...
*February 19, 2015*

**english**

Which is the best paraphrase of these lines from "New World"? Eagles/ hie and/ hover/above/the plain/ (1 point) A.eagles hurry and hang above the flat land. B.eagles hang in midair and wave their wings. C.eagles race and rush in a ugly way. D.eagles soar and swoop in...
*February 10, 2015*

**physics**

1. A man pushes on a box at an angle of 30.0° with a force of 20.0 N and the box moves across the floor. Which of the following component of the force do you use to calculate work? (Points : 1) 0.00 N 10.0 N 17.3 N 20.0 N Question 2.2. A man carries a 10 kg sack of ...
*February 2, 2015*

**L.A.**

In “Adventures of Isabel,” how is the doctor different from Isabel’s other enemies—the bear, the witch, and the giant? (1 point) He is nice to her. He frightens her. He gets killed. He may be real. I think its either the first one or the last one not 100% n...
*January 27, 2015*

**English one question**

In “Adventures of Isabel,” how is the doctor different from Isabel’s other enemies—the bear, the witch, and the giant? (1 point) He is nice to her. He frightens her. He gets killed. He may be real. I think its either the first one or the last one not 100% n...
*January 26, 2015*

**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*

**Science.. Need help ASAP!**

hey did you ever find the answers please
*December 1, 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*

**science pls help asap!!!**

thanks alot
*June 5, 2014*

**science**

wow that isn't cool
*May 15, 2014*

**Álgebra **

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

**science**

what r the answers
*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*

**science(check answers)**

thanks
*March 12, 2014*

**science(check answers)**

thanks at first confusing but I got it
*March 11, 2014*

**health**

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

**Help!!!**

thanks Emily I got 100% 8/8
*February 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? HELP!**

gosh this person needs help and ur being rude
*December 16, 2013*

**Science ASAP**

thanks I come here all of the time for answers and I really appreciate all of the help. Thanks:)
*December 6, 2013*

**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*

**7th Grade Social Studies**

yes those answers are all correct
*April 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*