Wednesday

October 26, 2016
**Pre-Calculus 11**

I don't know how to solve this... Question: Suppose 5/7ã3/2 is written in simplest form as aãb, where a is a real number and b is an integer. What is the value of b? (The square root is over the whole fraction of 3/2) A 2 B 3 C 6 D 14 I think it ...

*Saturday, July 9, 2016 by Anonymous*

**Pre Calculus**

Determine the quadrant in which a 130° angle lies. a. 4th quadrant b. 1st quadrant c. 3rd quadrant d. 2nd quadrant

*Saturday, July 9, 2016 by Amelia*

**Pre Calculus**

Determine the quadrant in which an angle, θ, lies if θ = 5.40 radians. a. 4th quadrant b. 3rd quadrant c. 2nd quadrant d. 1st quadrant

*Saturday, July 9, 2016 by Amelia*

**Pre Calculus**

Determine the quadrant in which an angle, θ, lies if θ = 8π / 7 a. 3rd quadrant b. 1st quadrant c. 4th quadrant d. 2nd quadrant

*Saturday, July 9, 2016 by Amelia*

**Calculus**

determine the equation of a plane, P3, that intersects the planes P1: x + y + 3z − 2 = 0 and P2: x − y + 2z = 0 in a point; a line. I know the normals are (1,1,3) and (1,-1,2) clearly the lines don't intersect because the normals are't multiples. So I don&#...

*Friday, July 8, 2016 by Safiya*

**Calculus**

Launching a missile to hit a target 100 miles away. Determine the launch speed of the missile along with the angle at which it's to be fired. Also, show your work and one of the angle that will work. Finally, assume that the only force acting on the missile is gravity.

*Thursday, July 7, 2016 by James *

**AB Calculus**

Assume that x, y, z and b are positive numbers. Use the properties of logarithms to write the expression logb 4(square root)x^7y^2 / z^4 in terms of the logarithms of x, y and z a. 28logbx+8logby-16logbz b. 7/4 logbx+1/2 logby-logbz c. 7/4logb(x+y-z) d. logb x+1/2 logby-logbz ...

*Thursday, July 7, 2016 by Miriam*

**Calculus**

Evaluate the definite Integral Integral [0 to pi/4] cos(2x)sec^2(pi/4 sin(2x))dx

*Thursday, July 7, 2016 by Sarah*

**Calculus**

use te fundamental theorem of calculus to evaluate the integral Integral [0, pi/3] sin^2(x)dx I'm confused on what F(x) should be

*Thursday, July 7, 2016 by Sarah*

**Calculus**

A 400 N object is hanging from two ropes that are suspended from the ceiling. One of the ropes forms a 60° angle with the ceiling and has a tension of 400 N. Calculate the tension in the second rope

*Wednesday, July 6, 2016 by Safiya*

**Pre Calculus**

The population P of a culture of bacteria is described by the equation P = 1600e^0.052t where t is time, in hours, relative to the time at which the population was 1600. (a) What was the population at t = 6 hours? Show your work. (b) After how many hours will the population ...

*Wednesday, July 6, 2016 by Jessica Maths*

**Pre Calculus**

Write the equation 5^2= 25 in logarithmic form. a. log255=2 b. log25=25 c. log52=25 d. log225=5 e. log525=2

*Wednesday, July 6, 2016 by Jessica Maths*

**Pre Calculus**

Use a calculator to find the value for log0.94769 to four decimal places. a. –0.0536 b. –0.9767 c. 0.9767 d. 0.0232 e. –0.0232

*Wednesday, July 6, 2016 by Jessica Maths*

**Pre Calculus**

Find the value of x. log4 65,536 = x a. x = 32,768 b. x=8 c. x = 65,536 d. x=4

*Wednesday, July 6, 2016 by Jessica Maths*

**Pre Calculus**

16. Use a calculator to find a value for ln16.1 to four decimal places. a. 2.7788 b. –2.7788 c. –1.2068 d. 5.0814 e. 1.2068

*Wednesday, July 6, 2016 by Jessica Maths*

**Pre Calculus**

17. population growing at an annual rate r will triple in a time t given by the formula t = ln 3/r If the growth rate remains constant and equals 9% per year, how long will it take the population of the town to triple? a. 6 . 6 years b. 1 years c. 5 . 3 years d. 2 . 2 years e...

*Wednesday, July 6, 2016 by Jessica Maths*

**Pre Calculus**

Assume that x, y, and b are positive numbers. Use the properties of logarithms to write the expression logb ^8xy in terms of the logarithms of x and y. a. logb^8 + logb x + logb^y b. logb^8+logbx c. logb^8+logby d. logb^8 + log8 x + log8^y e. logb^8+log8xy

*Wednesday, July 6, 2016 by Jessica Maths*

**Pre Calculus**

Assume that x, y and a are positive numbers. Use the properties of logarithms to write the expression loga x ^6y ^7 in terms of the logarithms of x and y. a. 42loga^x+y b. 42loga^x+7loga^y c. 6loga^ x + 42loga^ y d. 6loga^x+7loga^y e. 6loga^x+6loga^y

*Wednesday, July 6, 2016 by Jessica Maths*

**Pre Calculus**

22. Solve the equation. 2x = 5 a. x = 0.5541 b. x = 5.8628 c. x = 2.3219 d. x = 1.4307 e. x = 1.6652

*Wednesday, July 6, 2016 by Jessica Maths*

**Pre Calculus**

Simplify the expression. log3 36 a. 6 b. 36 c. 3 d. 18 e. none of these

*Wednesday, July 6, 2016 by Jessica Maths*

**Pre Calculus**

Simplify the expression. 9 log 9 2 This is 9 to the power of log base 9 of 2 a. 2 b. 18 c. 4 d. 9 e. none of these

*Wednesday, July 6, 2016 by Jessica Maths*

**Pre Calculus**

Tritium, a radioactive isotope of hydrogen, has a half-life of 12.4 years. Of an initial sample of 69 grams, how much will remain after 75 years? a. 1.5848 grams b. 61.5289 grams c. 0.0000 grams d. 1.0426 grams e. 17.2500 grams

*Wednesday, July 6, 2016 by Jessica Maths*

**Pre Calculus**

Evaluate the function f(x) = log3 x at x =1/27 without using a calculator a. –4 b. –2 c. 1/27 d. –3 e. 27

*Tuesday, July 5, 2016 by Jessica Maths*

**Pre Calculus**

Identify the x-intercept of the function f(x) = 2 ln(x-3). a. x=3 b. x=0 c. x=2 d. x=4 e. The function has no x-intercept

*Tuesday, July 5, 2016 by Jessica Maths*

**Pre Calculus**

Assume that x, y, and a are positive numbers. Use the properties of logarithms to write the expression log a 9 xy in terms of the logarithms of x and y. a. 9logbx+9logby b. 19 l o g b ( x + y ) c. 19 l o g b x + l o g b y d. logbx+logby e. 19 l o g b x + 19 l o g b y

*Tuesday, July 5, 2016 by Jessica Maths*

**Pre-Calculus 11**

Can you simplify this further? 2∛3 + 5∛3/4 - 12√11 + 5√11

*Monday, July 4, 2016 by Rocket*

**Pre-Calculus 11**

Simplify the following ∛375/4 This is how far I got ∛5*5*5*3/4

*Monday, July 4, 2016 by Rocket*

**Pre Calculus**

Can you give me an example of properties of functions in a real life example?

*Monday, July 4, 2016 by Jessica Maths*

**Pre Calculus**

Write f(x) =x^3-11x^2+18x+32 in the form f(x)= (x-k) q (x) +r when k=6 + (square root)6, and demonstrate that f(k)=r

*Monday, July 4, 2016 by Jessica Maths*

**Pre Calculus**

a. Identify the horizontal asymptotes of the function f(x)=x+6 / |x|+1 ( / = divided by/over) b. Make a summary of how you may sketch a graph of this rational function.

*Monday, July 4, 2016 by Jessica Maths*

**Pre Calculus**

The number of new accounts opened at a credit union in the years 2001 to 2006 can be approximated by the model N(t)= -80.6t^2+2100t+12000, where 11 <= t <= 16, with t = 11 corresponding to 2001. Using this model and your graphing calculator, determine the year in which ...

*Monday, July 4, 2016 by Jessica*

**Calculus**

A spider is descending vertically at a rate of 0.5 cm/sec. A lizard sits patiently on the ground at a spot 15 cm feet from the shadow of the spider (assume the shadow is directly below the spider). At what rate is the spider’s angle of elevation, θ, decreasing when ...

*Sunday, July 3, 2016 by Jace*

**Calculus**

Sand falls from a conveyor belt onto a conical pile at a rate of 6ft/mi^3. The radius of the base is always equal to two-thirds of the pile’s height. At what rate is the height of the pile changing when the radius of the base of the pile is 2 ft? I honestly have no idea ...

*Sunday, July 3, 2016 by Jace*

**Calculus**

Sketch the graph of the function that has the following properties. f is continuous on (-infinity, infinity). points: (-1,2), (0, 0), (-1,0) f'(x)>0 at (-infinity, -1) f'(-1)=0 f'(x)<0 at (-1, 1) f'(1)=0 f'(x)>0 on (1, infinity) f"(x)<0 on...

*Thursday, June 30, 2016 by Sarah*

**calculus**

the fence around a rectangular compound costs $4 a foot for three of the four sides. the fourth side is the wall of a building, so no fence is needed for that side. we will call the distance of the fence parallel to the wall w for width and the two other sides d for depth. a) ...

*Wednesday, June 29, 2016 by kristi*

**Calculus**

A box with square base and rectangular sides is being designed. The material for the sides costs 20 cents per square inch and that for the too and bottom costs 10 cents per square inch. The box is to hold 150 cubic inches. What dimension of the box will minimize the cost?

*Wednesday, June 29, 2016 by Bella*

**Calculus**

A printed page is to have 1.5 inches margin on all sides. The page should contain 144 square inches of type. What dimension of the page will minimize the area while still meeting these other requirements?

*Wednesday, June 29, 2016 by Sarah*

**Calculus**

A box (with no lid) is to be constructed from a sheet of card board by cutting the squares from corners and folding up the sides. Suppose the original sheet of card board measures 16 inches by 16 inches. What would the size of the squares removed to maximize the volume of the ...

*Wednesday, June 29, 2016 by Anna*

**calculus**

Find the volume generated by revolving about the x-axis the region bounded by the following curves y=sqrt/(4x+3),x=0,x=4, and y=0. (Use "pi" for π).

*Wednesday, June 29, 2016 by SARAH*

**Differential Calculus**

A norman window has the shape of a rectangle surmounted by a semicircle. If the perimeter of the window 10 m, express the area A of the window as the function of width x of the window.

*Tuesday, June 28, 2016 by GRAY*

**Calculus**

Use implicit differentiation to find the derivative of y with reapect to x x^2y-y^2+ln(xy)=1

*Tuesday, June 28, 2016 by Anonymous*

**Calculus - Discontinuity **

What kind of discontinuity is this piecewise function? Removable or jump? f(x) ={ (2x^2 - 5x - 3)/(x-3) if x does not equal 3 ............6............................if x = 3

*Monday, June 27, 2016 by Jane *

**Calculus**

What kind of discontinuity is this: F(x)= (2x^2 - 5x -3)/(x-3) if x does not equal 3 6 if x=3 It is a pieces use function. I thought it was removable but my answer key says it is a jump discontinuity. This is from an exam review and I want to get it right.

*Monday, June 27, 2016 by Bob*

**calculus**

Find the general solution of the equation. 6t*dy/dt+y=sqrt (t),t>0.

*Monday, June 27, 2016 by rebekah*

**calculus**

500-gallon tank initially contains 200 gallons of brine containing 100 pounds of dissolved salt. Brine containing 2 pounds of salt per gallon flows into the tank at the rate of 4 gallons per minute, and the well-stirred mixture flows out of the tank at the rate of 1 gallon per...

*Monday, June 27, 2016 by rebekah*

**calculus**

Given a closed box with surface area = 16 and a square bottom, what value of x will maximize the volume of the box?

*Monday, June 27, 2016 by buni*

**calculus**

What function should be used to minimize the distance between and the point (2, 0)?

*Monday, June 27, 2016 by bunneebud*

**calculus**

Given the area of a rectangle is A = bh, and assuming the rectangle is open on one side, perimeter b + 2h = 40, what formula will maximize the area of the rectangle

*Monday, June 27, 2016 by bunnybud*

**calculus**

a particle is moving along the curve whose equation is" y=x^2? At what point on the curve are the x and y coordinates changing at the opposite rate?

*Monday, June 27, 2016 by scott g*

**Calculus**

The base of a solid is the region bounded by the lines y = 5x, y = 10, and x = 0. Answer the following. a) Find the volume if the solid has cross sections perpendicular to the y-axis that are semicircles. b) Find the volume if the solid has cross sections perpendicular to the ...

*Thursday, June 23, 2016 by Jessica*

**General Physics**

Clarification: this is calculus-based physics, so the methodology is not restricted to trigonometry only. I have two questions, so hopefully I can divide them up nice and evenly. Also, if you know where I should copy and paste proper vector notation from, please tell me so I ...

*Thursday, June 23, 2016 by Justin*

**Calculus**

Related rates: The volume of a cube is increasing at the rate of 40 mm^3/s. How fast is the surface area of the cube increasing when each edge is 10 mm?

*Thursday, June 23, 2016 by anonymous*

**CALCULUS**

State the intercepts, domain and range for y= |0.5x^2-2|.

*Tuesday, June 21, 2016 by Peter*

**CALCULUS**

Let y(t) denote the mass of a radioactive substance at time t.t. Suppose this substance obeys the equation y′(t)=−14y(t). Assume that, initially, the mass of the substance is y(0)=M>0. At what time does half of the mass remain? (Round your answer to 3 decimal ...

*Monday, June 20, 2016 by Sarah*

**Calculus**

A tetrahedron is formed in the rst quadrant by the three coordinate planes and the plane that meets the x-axis at a > 0, the y-axis at b > 0 and the z-axis at c > 0. Compute its volume. Kindly help

*Monday, June 20, 2016 by Asfand*

**Calculus**

The position, p(t), of an object at time t is given. Find the instantaneous velocity at the indicated time c. Also determine whether it is moving forward, backward, or neither at time c. p(t)=2-1/t at c=3

*Monday, June 20, 2016 by Anonymous*

**Calculus**

Find the area under the curve of y=-2x+6 from x=0 to x=3 using 3 strips of equal length using right endpoints. I tried this equation before and my answer was 9 but my teacher said it was wrong? and I also posted this before and Someone who helped me got the same answer. So I&#...

*Friday, June 17, 2016 by Maya*

**Calculus **

Given the function 6x+3y=18, find the area under the curve from x=0 to x=3 using 3 strips of equal length using the right end points. I was working on this and so I made the equation equal to Y=mx+b form so it ends up being Y=-2x+6, and now I am completely confused.. Please ...

*Friday, June 17, 2016 by Maya*

**Calculus**

lim x-->0 ((7-3x^5+x^2sinx)/(5cosx))

*Friday, June 17, 2016 by anonymous*

**calculus**

find the constants a and b so the function is continuous on a real line piecewise function: f(x)={5, if x<= -2; ax+b, if -2<x<3; -5, if x>=3 I know the limit x-->2- is 5 and limit x-->3+ is -5. I don't know how to find the constants

*Friday, June 17, 2016 by anonymous*

**CALCULUS**

∫4x^−1*sin(ln(6x))dx I got 4*[-cos(ln(6x))]+C but its wrong and im not sure why... Please Help!! Thanks

*Thursday, June 16, 2016 by Sarah*

**Calculus**

find the value of a, if it exists, such that the following function is continuous at X = 2. piecewise function f(x)={x^2-3x+1, if x>2; a, if x=2; 3-2x, if x<2 I found the limits from left and right of 2 = -1 so the limit exists but I don't know how to figure out a

*Thursday, June 16, 2016 by Sarah*

**Calculus**

F(x)=2x^2-log(x+5)/√16+x

*Wednesday, June 15, 2016 by Bruno*

**CALCULUS**

Find the derivative of y=4sinx−2cosx

*Wednesday, June 15, 2016 by Sarah*

**calculus**

A rectangular lot is to have an area of 1600m^2. Find the shortest that can can reach the building with one end resting on the ground outside the wall

*Wednesday, June 15, 2016 by montefalco*

**Calculus**

The function f is continuous on the interval [4, 15], with some of its values given in the table above. Estimate the average value of the function with a Right Rectangle Approximation, using the 4 intervals between those given points. x 4 9 11 14 15 f(x) -6 -11 -18 -21 -25 -11...

*Tuesday, June 14, 2016 by Vikram*

**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 ...

*Tuesday, June 14, 2016 by James*

**Calculus**

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 ...

*Monday, June 13, 2016 by James*

**Calculus- Reiny **

Thanks for the help, but do you understand what Im suppoosed to graph on 2D d) Use a graphing calculator to sketch the graph of y = V(x). Use the viewing window [0, 24, 4] by [-2500, 4000, 500]. Then use the 2 nd – TRACE – maximum feature to calculate its maximum ...

*Monday, June 13, 2016 by James*

**Calculus**

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 ...

*Monday, June 13, 2016 by James*

**Calculus**

let f(x)=2x-7. Use the rigorous definition of limit to show that lim x-->4 f(x)=1

*Monday, June 13, 2016 by Sarah*

**AP Calculus AB**

The function f is continuous on the interval [4, 15], with some of its values given in the table above. Estimate the average value of the function with a Right Rectangle Approximation, using the 4 intervals between those given points. x 4 9 11 14 15 f(x) -6 -11 -18 -21 -25 -11...

*Monday, June 13, 2016 by Ryann*

**Calculus**

lim x--> 2+ (tan(pi/x))

*Sunday, June 12, 2016 by Anonymous*

**Calculus**

Two positive numbers have the property that their product is 2 and their sum is as small as possible. Find their sum.

*Friday, June 10, 2016 by Dylan*

**Calculus**

Use pinching theorem to evaluate lim x-->1 ((x-1)sin(1/x-1)) I'm confused in the pinch theorem analytically

*Thursday, June 9, 2016 by Anonymous*

**Pre-Calculus**

Your computer supply store sells two types of laser printers. The first type, A, has a cost of $86 and you make a $45 profit on each one. The second type, B, has a cost of $130 and you make a $35 profit on each one. You expect to sell at least 100 laser printers this month and...

*Wednesday, June 8, 2016 by Alexa*

**Pre-Calculus Matrix**

Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. Show your work. 4x - y + 3z = 12 x + 4y + 6z = -32 5x + 3y + 9z = 20 4 -1 3 12 1 4 6 -32 5 3 9 20 I believe that the solution does not exist and how can I prove that?

*Wednesday, June 8, 2016 by Alexa*

**Pre-Calculus**

Solve the system of equations using matrices. Use Gaussian elimination with back-substitution. x + y + z = -5 x - y + 3z = -1 4x + y + z = -2 I really need help.. 1 1 1 -5 1 -1 3 -1 4 1 1 1 -2 I've done so many different methods to solve this and I get stuck..

*Tuesday, June 7, 2016 by Alexa*

**Pre-Calculus**

The Fiedler family has up to $130,000 to invest. They decide that they want to have at least $40,000 invested in stable bonds yielding 5.5% and that no more than $60,000 should be invested in more volatile bonds yielding 11%. How much should they invest in each type of bond to...

*Tuesday, June 7, 2016 by Alexa*

**pre-calculus**

A plane flies at a speed of 150mph at an angle of 10 degrees, after 6 seconds, the plane keeps the same speed but changes to an angle 18 degrees. How long in minutes would it take the plane to travel to a cruising altitude of 30,000 feet?

*Tuesday, June 7, 2016 by Marc*

**maths-calculus help me**

differentiate Arccosh(x^2+1)*dy/dx if y=arcsinh(coth(x^2) plz showfull work i plead my brain is fried

*Sunday, June 5, 2016 by am in trouble*

**Calculus**

which of the following is equivalent to integral (a,b) k*f(x)+C)dx where k and C are constants k integral (a,b)(f(x)+C)dx ***** intergral (a,b)kdx + intergral (a,b)f(x)dx+ intergral (a,b) Cdx k integral (a,b)f(x)+ integral (a,b) Cdx integral (a,b) kdx * integral (a,b) f(x) dx...

*Friday, June 3, 2016 by Kevin*

**Calculus**

Find F'(x) for F(x)= integral[from 1 to x] of cos(t^3)dt

*Friday, June 3, 2016 by Kevin*

**Calculus**

lim (x--> infinidy) x^2/ln(x)= -1 0 1 e does not exist

*Friday, June 3, 2016 by Kevin*

**Calculus**

Which of the following grows faster than e^x as x--> infinity x^4 ln(x) e^-x 3^x .5e^x

*Friday, June 3, 2016 by Kevin*

**calculus**

Find the point on the line 4x+2y+5=0 which is closest to the point (-2,-1)

*Thursday, June 2, 2016 by Anonymous*

**Calculus**

Find the area bounded by the parabola 8+2y-y^2 and the lines y=-1 y=3

*Thursday, June 2, 2016 by Eli*

**Pre-Calculus**

Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. Show your work. 4x - y + 3z = 12 x + 4y + 6z = -32 5x + 3y + 9z = 20 Please help me..

*Thursday, June 2, 2016 by Liz*

**Pre-Calculus**

Solve the system by the substitution method. Show your work. 2y - x = 5 x2 + y2 - 25 = 0 I solved the problem but I got it wrong for some reason..can you solve it step by step?

*Thursday, June 2, 2016 by Liz*

**Pre-Calculus**

Locate the foci of the ellipse. Show your work. x^2/36+y^2/11=1 c^2=a^2-b^2 c^2=36-11 c^2=25 c= ± sqrt25 c= ±sqrt5*5 is this correct?

*Thursday, June 2, 2016 by Liz*

**Pre-Calculus**

Assume that x, y, and z are positive numbers. Use the properties of logarithms to write the expression 2lnx - 6lny + 1/3ln e^12 as a simplified logarithm. Is this 2lnx - 6lny + 4, or can it be simplified further?

*Thursday, June 2, 2016 by Anonymous*

**Pre-Calculus**

How do I find the domain of K(x) = x(32 - 2x)^2?

*Thursday, June 2, 2016 by Anonymous*

**Calculus**

A base of a solid is the region bounded by y=e^-x, the x axis, the y axis, and the line x=2. Each cross section perpendicular to the x-axis is a square Find the volume of the solid

*Thursday, June 2, 2016 by Hannah*

**Pre-Calculus**

Find a polynomial with the zeros -1, 7, sqrt2, and -(sqrt2). Can this be f(x) = x^4 - 6x^3 - 9x^2 + 12x + 14?

*Thursday, June 2, 2016 by Anonymous*

**Pre-Calculus**

Find the vertical asymptotes, if any, of the graph of the rational function. Show your work. f(x) = (x-4)/(x(x-4)) (x-4)/x(x-4) the common factors cancel out and all is left is f(x)= 1/x... how do I solve this problem?

*Wednesday, June 1, 2016 by Liz*

**Math (Calculus)**

Find the positive value of the parameter t corresponding to a point on the curve parametrized by {x= t^2 +3 ; y=t^2+t for which the tangent line passes through the origin. I tried with 2t+3 and 2t+1 but it isn't successful

*Monday, May 30, 2016 by Anonymous*

**Math Calculus I**

let f(x)= 6sin(x)/(2sin(x)+6cos(x)) The equation of the tangent line to y= f(x) at a= pi/6 can be written in tthe form y=mx+b where m=? b=? I found the f': (9*(cos^2(x)+sin^2(x)))/(3cos(x)+sin(x))^2 but i don't know how to fill it into the form. Can anyone help ...

*Monday, May 30, 2016 by Anonymous*

**Integral calculus**

find the area of the surface generated by revolving about x-axis the upper half of the ellipse 4x^2 + 16y^2 = 64

*Sunday, May 29, 2016 by Anonymous*

**Pre calculus**

olve the system of equations using matrices. Use Gaussian elimination with back-substitution. x + y + z = -5 x - y + 3z = -1 4x + y + z = ...

*Sunday, May 29, 2016 by Kim*

**Calculus**

Two ships leave the same port at noon. Ship A sails north at 12 mph, and ship B sails east at 19 mph. How fast is the distance between them changing at 1 p.m.? (Round your answer to one decimal place.)

*Saturday, May 28, 2016 by Chuck*