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Posts by Jack

Total # Posts: 1,773

algebra
What is the equation in slope-intercept form of the line that passes through (1,5)and has a slope of 3 ?

social studies
what were the guaranteed jamestown success

Physics
A bean jumps vertically off of a table. It has a speed of 10 m/s when it reaches half of its maximum height. How high does it rise?

Physics
A bean jumps off a table and when it reaches have its height it has a speed of 10 m/s, how high does it rise?

language arts
in which sentence is the word immensely used correctly

English
Why should you help old people across the street?

Tax
What item should not be included in income?

Math
A cashier has a total of 33 bills consisting of ones, fives and twenties. The number of twenties is 14 less than the number of ones. The total value of money is $164. How many of each denomination of bill are there?

Math
8 guppies

chemistry
12M HCl + H20→ 5M HCl How much water? Total Volume= Pls I need this tomorrow

Math
List the factors. Is this a prom or composite

Math
There are 12 animals in a farm.some are cows the rest are chickens.there are 28 animals legs in all.how many cows are there? how many chickens are there ?

English
i thought it was a name of grass so it should be capitalized ?

English
like lets say ur hiding in it. My mom was hiding in the High Grass?

English
Is High Grass capitalized?

History
thank you

History
did Amerigo Vespucci discovered the new world before columbus?

English
do you write annotations in appendix in a book?

Algebra
Are functions have one x and one y?

English
5-10

English
Annotating a book. How many literary devices should you list down?

History
I watched the movie The crucible 1996, can you give me any tips on how to write a synopsis?

English
If you had a book to annotate would you do it on the book or on paper?

Pricing Number
What does it mean if there is a comma in a number like this? $1,02

English
thank you

English
Is agony, and dumfounded tone words?

Math
The value of 50! Is the product of all the whole numbers from 1 to 50 inclusive, i.e. 50! = 1x2x3x...x49x50. Find the maximum number of divisions by 2.

English
What is Author's Word Choice?

algebra
thanks damon

algebra
if the x is on the numerator on the equation. is the equation linear?

CHEMISTRY
A 1.575 g sample of ethanedioic acid crystals, H2C2O4. xH20 was dissolved in water and made up to 250cm^3 . One mole of the acid reacts with two moles of NaOH. In a titration, 25.0 cm^3 of this solution of acid reacted with exactly 15.6 cm^3 of 0.160 mol/ dm^3 NaOH. Calculate ...

Chemistry
Considering only the molecular orbitals formed by combinations of the s atomic orbitals in the valence shell, how many molecular orbitals can be formed by 5000 sodium atoms?

Math trig
Hello guys. I am just wondering if tan^2 A (tan squared A) = sin^2 A /cos^2A And 2tan A = 2sin A / 2cos A This has been bothering me when I have to simplify trig. Thanks in advance.

Algebra 1
An airplane travels for seven hours with a 60 mph tailwind on the return trip against the same wind it took the plane nine hours find the speed of the plane with no wind.

Maths , logarithms
Thank you Reiny Your answer is very clear and shows what I did wrong. Keep up the good work.

Maths , logarithms
Sorry it wasn't clear the problem was this 2^(2x+1) -9*2^2x = -4

Maths , logarithms
Hi bob For the first log problem , it was in a test and my answer was wrong , could it be a marking error?

Maths
2^2x+1 - (9)2^x = -4 Can someone please solve for x ? My answer is x= 2 , is this correct?? Please show your steps

Maths , logarithms
Can someone solve for x please. I don't understand it. 2^x . 7^x = log 14 My answer : 14^x = log 14 = log14÷log 14 = x X=1 Is this right????

english
Which of the following correctly defines blank verse? A. poetry with no structure or rhyme B. a type of long poem often used for plays C. a type of rhymed poetry Shakespeare uses throughout his plays D. unrhymed verse written in iambic pentameter i think it's A

Math
154lb person burns 420 calories per hour riding an exercise bicycle at a rate of 15 mi/hr. Write a function rule to represent the total calories burned over time by that person. Explain how the information in the problem relates to the function.

Trigonometry
A hinged crane which measures 19m makes an angle of 50° with the ground. A malfunction causes the lock on the hinge to fail and the top part (of 14.6m) of the crane swings down. How far from the base of the crane does the top hot the ground.

math
Can you help me? For the problem .6 is 266 2/3% of what number? would I change 266 2/3% to a decimal and put it over 100?

Math Help please!
11. A basket contains the following pieces of fruit: three apples to oranges two pairs two bananas and five peaches. Jack pics of fruit at random and does not replace it then, Bethany pics of fruit at random. what is the probability that Jack gets a peach and Bethany gets an ...

math
T =ƒ­aƒy+ beƒ{^- kt (Equation 2) where T is the temperature at time t, and a, b and k are constants with values a = 20 „aC, b = 80 „aC and k = 2.6 ¡Ñ 10ƒ{4 sƒ{1. Differentiate Equation 2 with respect to t and thus give values...

Math
A boy is trying to find the height of a tree. When he stands 95.5 metres away from the tree (the distance D in Figure 2) the angle shown as è in Figure 2 is 31.5°. The boy’s eyes are 1.15 m from the ground (h in Figure 2). What is the height of the tree? You ...

Calculus
Use the trapezoidal rule with n = 5 to approximate. Keep at least 2 decimal places accuracy. Integrate: (cos(x))/(x) from x=1 to 5

Math
A florist used 12 flowers to make a bouquet, including 4 daisies. What is the probability that a randomly selected flower will be a daisy?

Software Engineering
Consider the following program (written in pseudo-code) begin x:= 0; y:= 1; z:= 1; while y <= n do x:= x+1; z:= z+2; y:= y+z; od sqrt := x; end Prove the partial correctness of the program with respect to the following predicates: Pre: {n>=0} Post: {sqrt2 <= n and n &...

World History
Who was firends with Joseph Stalin?

World History
what was Joseph Stalin favorite music, and movies?

Geometry
2513.27 cm^2

Geometry
John bought a conical hat on a recent trip to central Vietnam. The basic frame of the hat is 16 hoops of bamboo that gradually diminish in size. The hat is covered in palm leaves. If the hat has a diameter of 50 centimeters and a slant height of 32 centimeters, what is the ...

math
the first, second, and third terms in the geometric progression are k,k-6, 2k-28 respectively. given that all terms of the geometric progression are positive, calculate the value of constant k.

algerbra
a rectangle with width 2x+5 inches has an area of 2x^4+11x^3-5x^2-98x-120 square inches. Write a polynomial that represents its lenght

Math
For this problem (2)^0 (-2)^0 would I add the exponents? I f so what do I do with 2 and -2?

Calculus
Function is y=x2 . Take three points, x=2, x=3, x=4. Approximate this function at these three points for a deviation Δx =0.1. Which of the three points does the approximation works best? Which point does it works worst?

English
whats the answer

Math
It is 393

College Physics
A student of mass M = 82 kg takes a ride in a frictionless loop-the-loop at an amusement park. The radius of the loop-the-loop is R = 15 m. The force due to the seat on the student at the top of the loop-the-loop is FN = 696 N and is vertically down. What is the apparent ...

physics
125

Physics
A jet plane is flying at a constant altitude. At time t1=0 it has components of velocity Vx=90m/s, Vy=110m/s.At time t2=30.0s the components are Vx=-170m/s, Vy=40m/s.a).Sketch velocity vectors at t1 and t2.How do these two vectors differ?. For this time interval calculate b). ...

Math
can someone answer this ?

calculus
just wanted solutions and maybe working out as my previous year exams papers don't come with solutions. So I cant compare to see if I got it correct or not.

calculus
a) Let f(z) = z^2 and γ(t) = 1 + it^3, t ∈ [0,1]. i) Write out the contour integral ∫γ f(z)dz as an integral with respect to t. You do not need to evaluate this integral. ii) Evaluate the integral ∫0,1+i z^2dz iii) What is the relationship between ...

calculus
Thank you. Just wondering why 3T can be 3 pi, 5 pi, pi. Also just need c and d.

calculus
a) Obtain all solutions of the equation z^3 +1 = 0 b) Let z = x + iy. Obtain the real and imaginary parts of the function f(z) = 1/1+z c) Let f(x + iy) = x^2 - y^2 + iv( x,y). Determine a function v such that f is differentiable in the whole complex plane. Express f as a ...

Physics
A string under a tension of 43.0 N is used to whirl a rock in a horizontal circle of radius 2.25 m at a speed of 20.0 m/s on a frictionless surface as shown in the figure below. As the string is pulled in, the speed of the rock increases. When the string on the table is 1.00 m...

Quick Citation Question
I am citing books in MLA format and I am wondering about the publisher. If the publisher is: Smith and John Publication, Inc. Do I include the "inc." part with the period?

Algebra
A balloon is secured to rope that is staked to the ground. A breeze blows the balloon so that the rope is taut while the balloon is directly above a flag pole that is 30 feet from where the rope is staked down. Find the altitude of the balloon if the rope is 100 feet long. ...

geography,life science, business and maths lit
Can i study sport science or land survey with this subjects?

Math
8*6=48\3=16

Physics
You are in the supermarket, pushing a cart with a force of 92 Newtons in the horizontal direction. There is a constant force of kinetic friction operating on the cart of 16.8 Newtons. Calculate the net work done on the cart, if the cart is displaced 5.6 metres in a straight line.

Science
You drop a ball, mass 117.1 grams from a height of 68.9 cm. It bounces back to a height of 48.1 from the floor. What is the change in gravitational potential energy from the moment it is dropped, to the moment it reaches the maximum height from the bounce?

Science
1.A 2.B 3.C 4.A You will get 100%

Science
So what is the answers??

math
Yasmin lives 400m from Anton.Kevin lives 0.45km from Anton.Jared lives 40 000mm from Anton.who lives closest to Anton?how do you know?make sure to show your work?

Precalc
Taxes on a house assessed at $64,000 are $1500 a year. If the assessment is raised to 85,000 and the tax rate did not change, how much would the taxes be( round to two decimal places)

Maths
A glass is designed in the shape of a cylinder. it has a radius 5cm, and holds 1 litreof liquid, what's the height of the glass

Calculus(PLZ HELP)
That website isn't helpful since the problem is a box cross sectional problem. But thank you for trying to help

Calculus(PLZ HELP)
A serving bowl has an inside diameter of 12 inches and a depth of 4 inches. The bowl is fashioned from part of a sphere. Find the capacity (volume) of the bowl.

Grade 5 math
Sidney flew in an airplane five times during her vacation.The flights averaged 2 hours 8 minutes long.The lengths of her first four flights were 2 hours 10 minutes,3 hours 20 mins,1 hours 15 minutesand 2hours 40 minutes.What was the length of her last flight

Science
What is the centripetal acceleration a satellite is orbiting the Earth at an altitude of 300.22 km?

Physics
dont be a dick bob

History
d for dick

physics
Imagine a parallel universe in which the electric force has the same properties as in our universe but there is no gravity. In this parallel universe, the sun carries charge Q, the earth carries charge −Q, and the electric attraction between them keeps the earth in orbit...

physics
An electron is projected with an initial speed of (1.90x10^6 m/s) into the uniform field between two parallel plates. Assume that the field between the plates is uniform and directed vertically downward, and that the field outside the plates is zero. The electron enters the ...

Math
Actually, rounding to the nearest whole number is incorrect. For example, 24 4/7 rounds up to 25, not the best number to divide by 4 to get your estimate. What you need to do is to find the nearest number (up or down) that is compatible with 4. So in this case, 24 4/7 would ...

Maths
The scale of a map is 1:500. Find the length of a road in real life if it is 6cm long on the map

Language arts
based on the text preview as well as research about the background of the novel and the author's life a reader can predict that the novel will most likely be about Deez nuts HA GOT EM

Social studies
Hey ms. sue . I went to the link that you put in here but I didn't see what I was looking for? could you pls help me>

Math
I need help please. Assume that one dollor is equal to 1.14 euros. If 500 g of an item is selling for 25 euros, what is its price in dollars per kg?

Algebra
write equation of given translation of y=|x| 1 unit down 5 units right 10 units left 4 units up 6 units left

Math -Algebra
write equation of given translation of y=|x| 1 unit down 5 units 10 units left 4 units up 6 units left

MATHS HELP URGENT(TIME AND WORK)
A can do a piece of work in 12 days whereas B can destroy the work in 3 days. A does the work for 10 days and then B destroys the work up to 2 days. In how many days will the work be finished?

math
You need 4 more ounces

Algebra 2 (Math)
Divide 3x^3 + 3x^2 + 2x – 2 by x + 3 using long division. Check my answer please. 3x^2 – 6x + 20 3x^2 + 12x – 16 3x^2 + 12x – 16, R 58 3x^2 – 6x + 20, R -62 (I think that it's this one)

science
D. Firecrackers are converted to thermal energy when they burn.

Physics
You jump from a height of 1.0m from the surface of the Earth. The Earth will actually move a bit as you land. a.) Explain Why b.) Estimate the distance the Earth moves, listing any assumptions you make

social studies
K thank you

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