# determine the work done (including the algebraic sign).

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applied calculus
Let y=〖tan〗^(-1) x Rewrite it as an equation involving a trig function. Use implicit differentiation to determine an expression for y.

1. Determine which ordered pair is a solution of y = x*2–2. (5, 21), (–5, 24), (–1, –1), (–2, 6) 2. Without graphing, tell whether the line containing (6, –3) and (0, –8) is horizontal, vertical, or neither.

dynamics
A ball of mass 8 kg is thrown vertically upward from the ground, with an initially velocity of 25 m/s. determine the maximum height to which it will travel if atmospheric resistance is neglected.

dynamics
a ball of mass 8 kg is thrown vertically upward from the ground, with an initially velocity of 25 m/s. Determine the maximum height to which it will travel if atmospheric resistance is neglected

physics
A ball of mass 8 kg is thrown vertically upward from the ground , with an initially velocity of 25 m/s. Determine the maximum height to which it will travel if atmospheric resistance is neglected.

Chemistry
Determine the empirical and molecular formulas for vanillin given that its molar mass is 152 g/mole and its composition is: 63.15% carbon, 5.30 % hydrogen and the rest oxygen

physics
Determine the stopping distances for an automobile going a constant initial speed of 97km/h and human reaction time of 0.50s , for an acceleration a=−6.5m/s2

Chemistry
Diarsenic trioxide is the number one source of arsenic; determine the mass of a sample of this extremely poisonous material containing 4.03x10^18 molecules.

College Algebra
A compound inequality uses one of the words and or or. Explain how you will determine whether to use the intersection or union when graphing the solution set

math
A vehicle having a mass of 1.5tonnes is standing on an incline of 18degree to the horizontal.Determine the components of its weight parallel and perpendicular to the road surface.

Phsyics
Determine the absolute pressure at the bottom of a lake that is 66.1 m deep. Write your answer correct to two decimal paces let Patm = 101,300 Pa

algebra
Express the statement as a formula that involves the variables w, z, u and a constant of proportionality k, and then determine the value of k from the condition : w varies directly as z and inversely as the square root of u, if z = 3 and u = 4, then w = 18

Finance
Determine the present values if \$5,000 is received in the future (at the end of each indicated time period) in each of the following situations: a. 5% for 10yrs b. 7% for 7yrs c. 9% for 4yrs

Chemistry
Given the Na+/Na and K+/K half-cells, determine the overall electrochemical reaction that proceeds spontaneously and the E0 value. Answer in units of V Can you please explain the steps?

Engineering
Determine the relationship between the radius and height of a right-cone with a volume of 300 cm3. This is all there is to the question and I'm not sure what my teacher wants for an answer.

Calculus I
I have to determine if this function is either odd or even or neither. f(x)=x^3*abs(x^3) + x^3 I do not know how to approach this question as the absolute value is giving me trouble. Please help. Thanks.

chemistry
Use Hess's Law and a table of heats of formation to determine the enthalpy for the following reaction. 3SO2(g) + 3H2O(g) + 3/2O2(g) --->3H2SO4(l) ΔH = ?

chemistry
Use Hess's Law and a table of heats of formation to determine the enthalpy for the following reaction. 3SO2(g) + 3H2O(g) + 3/2O2(g) --->3H2SO4(l) ΔH = ?

Physics
A cart released from rest at the top of a track 90. cm long takes 4.00 seconds to reach the bottom. determine the velocity after half the time.

Math
5x^2-10x+d=0 Determine an integer value for d such that the equation has rational, non zero roots Please show me the steps and how to answer this question :) thanks:)

chemistry
Determine the pH (to two decimal places) of a solution prepared by adding 395 mL of 0.0360 M benzoic acid (C6H5COOH) to 12.5 g of sodium benzoate (NaC6H5COO).

AP Chemistry
Determine the volumes of 0.10 M CH3COOH and 0.10 M CH3COONa required to prepare 10.0 mL of buffer of each of the following pH values? a. Ph 3.7 b. pH 5.7 C. pH 5.7 I just need to see how to do one of them and I'll understand how to do the rest.

Physics
charges of -6nC and 4nC are 3m apart.(a)Determine the force they exert on each other.(b) the net electric field intensity at a point midway between them.

Physics
A gun shoots a bullet at 1200 m/s at an angle of 600 above the horizontal. Neglecting air resistance, determine: a.) its time of flight b.) its range

Stats - Help!!!
Determine which of the four levels of measurement is most appropriate for the statement below. Ages of survey respondents. A. Ratio B. Interval C. Ordinal D. Nominal an: B

math

Geometry
With a 12ft. pole marked in feet, how can one determine the foot of the perpendicular let fall to the floor from a point on a ceiling of a room 9ft. high?

Physics
An astronaut constructs a pendulum with a length of 1 meter on a new planet. If the period is 3.9 second, what is the acceleration due to gravity? Can someone help me with formulas to determine this?

Math
Use a tree diagram or systematic list to determine the number of ways a nickel, a dime, and a quarter can be flipped to get exactly one tail.

Physics urgent pleasw
Stone is thrown vertically downward with an inital speed of 2.0m/s from height of 10m, determine time it takes to reach the bottom. Thanks!

electrical energy and power
determine the overall efficiency of a motor that deliveries 2 horsepower to a load if it draws 7.5 amperes when connected to a 240 volt supply.

Applied calculus
A rectangular plot requires 2000 m of fencing to enclose it. If one of the dimensions is x meters, express the area y (m2) as a function of x. Determine the range of x.

chemistry
Determine the order of reducing agents (strongest to weakest). A) Mn(s) > Zn(s) > Cr(s) > Fe(s) B) Fe(s) > Cr(s) > Zn(s) > Mn(s) C) Mn(s) > Fe(s) > Cr(s) > Zn(s) D) Zn(s) > Mn(s) > Cr(s) > Fe(s) I know the half reaction for the following: - ...

Literaure Question-Desperate For Help!
It is not wise to rely on the ________ to determine whether a stereotype exists in a book. title, illustrations, book's format, or copy-right date I do not know how to answer this question. My text says do not rely on the date of publication to tell you if a stereotype exists...

Physical Science/light
An object 5 millimeters high is located 15 millimeters in front of a plane mirro. How far from the mirror is the image located? The focal length f of a plane mirror is infinity and 1/f = 0. The optical equation becomes 1/Do + I/Di = 1/f = 0 Do is the distance to the object and...

Genetics
Hi, I'm just trying to learn gene mapping and I'm a bit confused as to why the answer this question is D. I just don't get it, and I'd really appreciate it if someone could help work it through so I'd understand how they got that answer to be wrong and the other one's to be ...

Algebra
1. √(9y - 196) + √196 = √49 My work: I squared all 3 roots and got 9y - 196 + 196 = 49 The - 196 + 196 cancels out and we are left with 9y = 49. divide 49 by 9. = 49/9. I'm pretty sure this is wrong. Can you show me where I messed up? 2. √x(√9 - 4...

math
I have a math question that goes like this: There are 500 light that have on and off switches. One person goes and turns all the lights on. The second person switches the lights from 2,4,6,8...and so on. THe 3rd person switches 3,6,9,12....and so on. This goes on for 500 ...

physics question
A spacecraft in the shape of a long cylinder has a length of 100 m, and its mass with occupants is 1660 kg. It has strayed too close to a black hole having a mass 103 times that of the Sun (Msun = 1.99 x 1030 kg). The nose of the spacecraft points toward the black hole, and ...

English
@ words : 1- curtail 2- devastate 3- digress 4- incentive 5- incorporate 6- indispensable 7- intermittent 8- rigor 9- squander 10-succumb Linda never had to work hard to make good grades in high school. But in college, where the ___(8)___ of course work were greater, she soon ...

Physics
A perforated bead of mass 37g moves on a frictionless horizontal circular track of radius R=0.65m. The track runs through the bead. When the bead is at rest in the horizontal position, it is tied to a spring at the centre of the track. The unstretched length of the spring is R...

Child Development Question
Negative behaviors by toddlers which tax the patience of adults may be a sign of which? A. HAVING BEEN SPOILED B. INSECURITY AND FEAR OF FAILURE C. An EMERGING SENSE OF AUTONOMY D. HOSTILITY TO PARENTS AND CAREGIVERS I am thinking (D)hostility to parents and caregivers is the ...

College Algebra
A new employee at a sales company is offered one of three different possible salary packages, A, B and C. The new employee will work 15 hours per week. Package A: \$105 for the 15 hours of work each week. Package B: \$60 plus a commission of 8% of all sales during the week. ...

biology: genetics
In Drosophila melanogaster, cut wings (ct) is recessive to normal wings (ct+), sable body (s) is recessive to gray body (s+), and vermilion eyes (v) is recessive to red eyes (v+). All three recessive mutations are X- linked. A female fly with cut wings, sable body, and ...

History
How did the Treaty of Versailles change Europe and effect Germany in particular? Please tell us what you know about how the treaty of Versailles changed Europe and Germany, and we'll be glad to add our comments and critique your answer. How did the Treaty of Versailles change ...

Engineering
Your Swine manure pit is rectangular measuring 50' by 100' and is 4' deep. If you use a 1" diameter hose 2 hours each day at 8 ft per second velocity to remove the manure from your swine pins how many days worth of storage space do you have in your pit? In other words how ...

Constutitional Law
You are a paralegal assisting an attorney who is representing an individual who has been convicted of a murder during a home invasion and who was sentenced in state court to be executed. You are assisting with research for an appeal to the U.S Supreme Court. Provide the ...

Physics
You are the designer of a school bus and would like to know what the maximum stopping distance is that will ensure the students to remain in their seats. The coefficient of static friction for the passenger and the bus seat is .5, and the coefficient of kinetic friction for ...

Physics
You are the designer of a school bus and would like to know what the maximum stopping distance is that will ensure the students to remain in their seats. The coefficient of static friction for the passenger and the bus seat is .5, and the coefficient of kinetic friction for ...

physics
If you have swam one lap in a swimming pool, that means you have swam from one end to the other and back. In 2.5 h, a swimmer makes exactly 29 laps in a swimming pool that is 23 m long. Determine the distance the swimmer traveled, the total displacement of the swimmer, the ...

how to determine the vertices of a hyperbola?
y^2=25x^2+20x+3 anyone knows which way does it open?? and the location of its vertices??

Domains of Functions
I don't understand how to do this problem, can you please help me? Given the functions f and g, determine the domain of f+g. 4. f(x)= 2x/(x-3) g(x)=3/(x+6)

Math
Can you please check my answers. Determine whether the function is a polynomial function. f(x) = 4x + 4x^5 -Yes f(x) = 4 - 1/x^2 -No

math
Determine whether the functions are even, odd, or neither. (a) f(x) = x²/√x²+ 1 (b) g(x) = x^3 - √ x- 7

math
find the x-intercepts for P(x)= x^4-10x^2+9 and determine the behavior of the graph near the intercepts

math
Tell how you could use a number line to determine which of two number is greater

Algebra check
Determine whether f(x)=x^2 is one to one. I have the answer as yes. Is this right

math
determine the domain of the function y=log(subscript/little x)(8-x) so x^y = 8-x how do I find the domain?

Pre Cal.
Determine the slant asympotte [sic] for f (x) = (x^2 - 5x - 3)/x My answer: (x^2 - 5x - 3)/x = x - 5 - 3/x The slant asymptote is y = x - 5.

chemistry
my last question is how do you determine the molecular formula of a covalent compound given its formula?

Physics
If the rectangular coordinates of a point are given by (4,y), and its polar coordinates are (r,25 degrees), determine y and r.

math
Determine the region(s) of the Cartesian plane for which a) y > 1/(x^2) b) y less than or equal to x^2 +4 and y greater than or equal to 1/(x^2 +4)

Triangle POB has vertices: P(0 , 4) O(-3 , 0) B(3, 0). Determine the orthocentre of the triangle.

basic math
Determine if the given rates are equivalent. 9in/57 miles = 6 in/38 miles

chemistry
80.0 g of iodine (v) oxide reacts with 28.0 g of carbon monoxide determine the mass of iodine

chemistry
80.0 g of iodine (v) oxide reacts with 28.0 g of carbon monoxide determine the mass of iodine

Calculus
Determine the resultant of the vector sum: 10 N at 045 degrees and then 8N at 068 degrees.

Vectors
if |x|=2 and |y|=5, determine the dot product between x-2y and x+3y if the angle between vector x and y is 60deg.

pre algebra
the lengths of the sides of a triangle are 9,9 and 15. determine whether this is a right triangle?

Math
If I bought an item for \$80 on which there was a 30% markup, what is the formula to determine the pre-markup price?

Calculus II
Determine whether the sequence converges or diverges. If it converges, find the limit. An=((-2)^n)/n!

chemistry
Determine the number of NH4+ ions in a 145 g sample of (NH4)2SO4.

chemistry
how do you determine what species are present in NH3 soltuion? I don't understand what exactly the species are.

College Algebra
The point (6, 2) lies on the line -x – 8y = -22. Determine if this point is a solution of the system -x – 8y = -22 -7x + 3y = -36

Math
Determine the 10th term of the sequence 3, 10, 28, 72, 176... State the general term.

statistics
Given the following data: 18,12,18,20,16,20,18,36,16,18, 14,20,24,20,5,18,10,15,24. Determine the mean, median and mode of this data

Algebra 1
Quadrilateral ABCD has vertices A(-2,1), B(3,3), C(5,7), and D(0,5). Determine whether line AC is perpendicular to line BD.

Phyisics
A 256 kg stone has an acceleration of 90.7 m/s2. Determine the net force acting on the stone.

Algebra
determine if the equation of the line f(x) = x + 1 a function using the Vertical Line Test?

calculus
Let q(x)=(x^4)(e^-x). Calculate q'(x). Use q'(x) to determine whether q(5)<q(6) or q(5)>q(6) (do not use a calculator). Explain your reasoning.

calculus
Let q(x)=(x^4)(e^-x). Calculate q'(x). Use q'(x) to determine whether q(5)<q(6) or q(5)>q(6) (do not use a calculator). Explain your reasoning.

intermediate algebra
3x^2+9x+4=0 the discriminant is 33, using the discriminant to determine the number of real solutions

Chemistry
determine the number of grams of KCl salt contained in 1.25L of a 5.00%(W/V) KCl(aq)

Math
The list price of an item is \$ 78.99 and the net price is \$ 56.67 . Determine the amount of discount.

math
The line y=2x + b is tangent to the graph y= sqrt x at the point P= (a,sqrt a). Find P and determine b

Statistics
Determine the regression line of x+2y-5=0 and 3x+3y-8=0 (i) y on x and (ii) x on y, (iii) Find r using the regression coefficients

pre cal
Is the given function linear or nonlinear. If linear determine the slope. x y = f(x) 1 -2 -2 -14 3 8 4 4 -6 1

Geometry
a parallelogram has the vertices (0,3), (3,0), (o,-3), and (-3,0). determine what type of parallelogram and find the perimeter and area

math
The area of a rectangle is 24 m2. The length of this rectangle is 6 m. Which equation could be used to determine the width, w?

dynamics
If end A of the rope moves downward with a speed if 5 m/s, determine the speed of cylinder b

Chemistry
Determine the Concentration of OH^-1 and pH of a solution that is 0.140 M F^-1. I did F- +H20 ---> HF + H20 but idk what to solve from there....

Calculus
Determine derivative of each function A) y = 3xSinx B) f(t) = 2t^2Cos2t C) [(pie)tSin](pie(t)-6)

calculus 3
determine the value of the constant α so that f(x,y) is continuous at (1,-1) if f(x,y): i)sin(x+y)/(x^(2 )– y^2 (x,y)≠(0,0) ii) α (x,y)=(0,0)

calculus 3
determine the value of the constant α so that f(x,y) is continuous at (1,-1) if f(x,y): i)sin(x+y)/(x^(2 )– y^2 (x,y)≠(0,0) ii) α (x,y)=(0,0)

A solution is found to contain 1 x 10-4 OH− ions, determine the pH of this solution.

physics
The pendulum on a cuckoo clock is 5.00 cm long. (a) Determine the period of this pendulum. (b) What is its frequency?

physics
It takes 2.5 J of energy to stretch a helical spring by 15 cm. Determine the spring constant.

Earth Science
How you would determine the density of a block that measures 3 cm X 3cm X 3cm.

Chemisty
Determine how many calories are need to heat 30 grams of water from 10 degrees C to 30 degrees C

Physics
A cheetah can run with a speed of 29 m/s. Determine the distance travelled by a running cheetah in 8.6 s

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