Dom

This page lists questions and answers that were posted by visitors named Dom.

Questions

The following questions were asked by visitors named Dom.

simplify: 2sin35 deg times cos35 deg.

if 10 students enter projects in the art show, how many different ways can they come in 1st, 2nd, and 3rd place? would you go 10^3 OR 10TIMES 3? This is not a trig question. Neither of those answers is correct. After making one of ten possible choices for...

from the equation: x^4 - i = 0 x^4 = i how do you get: The solutions are the fourth roots of i = cos(pi/2) + isin(pi/2) I don't understand how you get pi/2? please full and detailed explanation please.

A. Psychology B. Literature and Arts C. Journalism (Newspaper)

To neutralize a solution of NaOH and use the least volume of acid, you should select I. 1.0M HCl II. 1.0 M HC(2)H(3)O(2) III. 1.0 M H(2)SO(4) (A) I only (B) II only (C) III only (D) I and II use equal and lesser volumes. (E) I, II, and III use the same vo...

What the the primary consumers in the desert biome

[Volume-Volume].How many liters of HF gas will be produced when 30.0 liters of hydrogen reacts ? Equation:h2+f2--->2HF i need help

Hmm... i need someone to explain about Formualas however u spell it.

If 250 mg of a radioactive element decays to 200 mg in 48 hours, find the half-life of the element

Find the number c if the line y=x is to be tangent to the graph of f(x)=x^4+c. what are the coordinates of the points of tangency?

Two metal spheres having charges of +4.0 x 10^-6 coulomb and +2.0 x 10^-5 coulomb, respectively, are brought into contact and then separated. After separation, the charge on each sphere is...

A metal sphere has a net negative charge of 11 x 10^-6 coulomb. Approximately how many more electrons than protons are on the sphere?

How many grams will dissolve on 3.0*10^2mL of 0.050 M Ca(NO3)2? Ksp=8.7*10^-9

OOPs i Meant How many grams CaCo3will dissolve on 3.0*10^2mL of 0.050 M Ca(NO3)2? Ksp=8.7*10^-9

I you are told that a data set has a mean of 25 and a variance of 0 you can conclude that A)There is only one observation in the data set B) There are no observations in the data set C)All of the observation in the data set are 25 D)Someone has made a mis...

The decomposition of an aldehyde solution in carbon tetrachloride is a first order reaction with a rate constant of 1.20 x 10-3 min-l. If we start with [aldehyde] = 0.0500 molar, what will the concentration be 150 minutes later? a. 0.00900 M b. 0.0418 M c...

For the reaction, A = B + C, the rate law is kA]. If it takes 80.0 seconds for 70.0% of a 10.0 gram sample of A to be transformed into products, what is the value of the rate constant? a. 0.00450 s-1 b. 0.0290 s 1 c. 0.00530 s-1 d. 0.0150 s-1 e. 5.40 s-1

Apex Plumbing charges a trip fee of $55 plus $15 for each quarter hour of service. John wrote an equation using, t , the total cost of a service call, as a function of, h , the number of hours the call lasted. What is the value of the slope in his equatio...

How many moles of vanadium atoms, V, are needed to combine with 0.725 mol of O atoms to make vanadium pentoxide,V2O5?

Sara is 24 years younger than Joe. Six years ago she was half as old as he was. How old is he now?

I'm trying to write a sub that asks how much oil I made, and then gives me number of barrels needed to hold oil, cost of producing oil, and profit from oil. This is what I have so far, I'm not sure what to do. Sub Oil() Dim barrels As Variant Dim tons As...

A babysitter takes care of 20 kids. When taking care of all the kids she gets paid $50 per kid. However, for every $5 more she charges, a kid leaves. How many kids should she babysit to max her profit? I want to write a code that asks user to enter the ch...

I'm trying to create a vba code that solves this problem: 50 apartment units rent for 600 a month, for each 40 dollar increase in rent a unit becomes unoccupied. I want to find the max profit and number of units at that number. Sub Rent() Dim Rent As Vari...

Say this is my cell: 2013 *aaron e. pacheco*9743 2nd Avenue*Boca 33431 *[email protected]*9049 how would i use the text function to extract the first, middle, and last names from a list of cells like the one above with differing name lengths? and possibly s...

Hi I'm trying to filter data between 3 different columns. I want it so the data filtered so data in column a is smaller than column b, which is smaller than column c. I try to filter but it only allows me to use filter criteria from the individual column.

Return 2005 Return 2006 Return 2007 I have a data table with returns for 3 different years. I want to use a filter that only includes records where the return is increasing each year(i.e.: 2005<2006<2007) I"m stuck please help.

The bird perched on the swing has a mass of 48.0 g, and the base of the swing has a mass of 159 g. The swing and bird are originally at rest, and then the bird takes off horizontally at 1.20 m/s. How high will the base of the swing rise above its original...

Solve the equation for the indicated variable: (ax+b)/(cx+d)=6 , Solve for X

Find all Real solutions of the Equation: (ENter as comma sparated answers, if there are no real solutions then just leave as NRS) x^(4/3)-9x^(2/3)+14=0 x=?

Simplify and show work: [(X^(2)+3)^(1/3)](-1)(x^(-2))+[1/3(x^(2)+3)^(-2/3)](2x)(x^(-1)) My answer key says that it's this but I have no idea how to get to it. I've tried 4 times already and failed each: [-(x^(2)+9)]/[(3x^(2))(x^(2)+3))^(2/3)]

A wheelchair ramp with a length of 122 inches(top of ramp) and has a horizontal distance of 120 inches(bottom of ramp): a) what is the ramp's vertical distance(x)? b)Construction laws are very specific when it comes to ramps. Each vertical rise of 1 inch...

The question I've been trying to figure out is asking me to explain how the graph of (g) is obtained from the graph of (f). The graphs are as followed: - f(x)= x^(2)-4 - g(x)= [x^(2)-4] (Note: the Brackets represent absolute value symbols around the expre...

How do you find the square root of 14 without a calculator? I know I need to use the square root of 9 which is 3 and the square roots of 16 which is 4. I know the answer is gonna be closer to 4 because 14 is closer to 16. I just can't figure how to get th...

An air-filled toroidal solenoid has a mean radius of 15.2 cm and a cross-sectional area of 4.98 cm2 as shown in (Figure 1) . Picture this as the toroidal core around which the windings are wrapped to form the toroidal solenoid. The current flowing through...

Problem: A fixed 16.2-cm-diameter wire coil is perpendicular to a magnetic field 0.79 T pointing up. In 0.15 s , the field is changed to 0.34 T pointing down. Part A: What is the average induced emf in the coil?

Three fact about her poet "The sky is low,the clouds are mean"

If the electric field in an EM wave in free space has a peak magnitude of 8.7×10−5V/m, what is the peak magnitude of the magnetic field strength? Answer:____T

Problem: An excited hydrogen atom could, in principle, have a radius of 2.50 mm . ________ Part A: What would be the value of n for a Bohr orbit of this size? Answer--> n= 6.87×103 _______ Part B What would its energy be? Answer--> E=_______eV [Note: I go...

Problem: What wavelength photon would be required to ionize a hydrogen atom in the ground state and give the ejected electron a kinetic energy of 19.1 eV ? Answer--> λ =______nm [Note: I got 3.8x10^-8. I got it wrong twice] My steps: (32.7 eV)(1.6x10^19)=...

Problem: What is the resistance of a 3.9-m length of copper wire 1.1 mm in diameter? The resistivity of copper is 1.68×10^−8Ω⋅m. Answer--> R=______Ω

A galaxy is moving away from Earth. The "blue" hydrogen line at 434 nm emitted from the galaxy is measured on Earth to be 458 nm . Part A How fast is the galaxy moving? Answer--> v=____ c Part B How far is it from Earth based on Hubble's law? Answer--> d=...

1). A major source of increasing economic inequality in the U.S. is the fact that: A) the U.S. is a racist society B) the overwhelming majority of new jobs have been in the lowest paying sectors C) Social Security payments are unable to keep up with infla...

1). Welfare Reform is said by politicians to be based on the idea that the federal government wanted to get out of the “helping people” business. True or false 2). Generally speaking, the best predictor of where a person will go in life and what their lif...

Which situation would not happen in a parliamentary form of government? A. The executive consults with the legislature about whether to declare war on a neighboring nation. B. The government dissolves when the ruling party cannot effect change on a major...

You, Me and Mask Around these faces, A perfect disguise From within the truth, I dare not say. The truth within, is locked away. The perfect disguise is out to act. The masked individual, I dare not say. The lie they live, is the only escape The lonelines...

devise a number system based on base 11. a)draw the number line b)show examples of addition and subtraction c)develop a representation of negative numbers based on elevens complement

A curve is given by parametric equations x=t^2−1,y=t+1. Eliminate the parameter t to find a Cartesian equation of the curveSimplify your answer

Identify the curve r^2sin2θ=1 by finding a Cartesian equation of the curve.

Find an equation of the tangent to the curve x=e^t sinπt,y=e^(2t) at the point where t=0

Find the area of the region bounded by the curve r=sinθ+cosθand lies in the sector 0≤θ≤π

A partial sum of an arithmetic sequence is given. Find the sum. 1 + 7 + 13 + ...... + 607

True or False f ∑an diverges, then necessarily lim an ≠ 0

Every bounded sequence is convergent True or False

True or False a) Every convergent sequence is bounded b) If lim n→∞ an=0, then the series ∑n=∞ 1 an converges

Use the sum of the first 10 terms to approximate the sum of the series ∑∞,n=1, 1/(3^n+4^n). Estimate the error.

Use the Comparison Tests to determine whether the series∑∞,n=2, 1/ (n sqrt(n^2−1) converges or diverges.

The lowest pitch that the average canine ear can identify is 40 Hz. If sound with this frequency travels through air with a speed of 300 m/s, how long is the wavelength?

Find the points of intersection of the curvesr=1+2sinθ and r=2.If your answer involves π, write "pi".

Let a_n=5n/(100n+38). Determine whether a_n is convergent. Determine whether ∞∑n=1 a_n converges

If the nth partial sum of the series ∞∑n=1 an is s_n=√(4n^2+5n−7)/(5n+10). Find the sum of the series

A 20.0 kg wood ball hangs from a 2.10 m -long wire. The maximum tension the wire can withstand without breaking is 500 N . A 0.900 kg projectile traveling horizontally hits and embeds itself in the wood ball.

Is C2H5OCOOH polyprotic acid or monoprotic acid?

A solution of potassium fluoride turns litmus paper blue. What are the products of the modified Arrhenius net ionic equation for this compound?(Choose all the correct answers) Question 2 options: A. OH- B. H3O+ C. F- D. H2O E. HF F. HKF+

Read the quotation from the book: "You watch out, Henry, 'an take good care of yerself in this here fighting business…. Don't go a-thinkin' you can lick the hull rebel army at the start, because yeh can't. Yer just one little feller amongst a hull lot of...

How is Henry a "man" by the end of the novel? . He is transformed from being frightened and aggressive to being calm and confident. . He has become an angry and aggressive person willing to fight for his rights. . He recognizes how defeating his shame wil...

Find the positive integer n such that the expansion of (4x - 7y)^n contains a term of the form cx^2*y.

Find the number of positive integers that satisfy the following conditions: * Each digit is a 1 or a 2 or a 3 * The sum of the digits is 10

Find the number of ways of arranging the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 in a row so that the product of any two adjacent numbers is even or a mutliple of 3

Chuck deposits $2000 into a bank account that compounds annually at an interest rate of . Assuming there are no other transactions, what will the balance be after years, in dollars? Chuck deposits $2000 into a bank account that compounds semi-annually at...

Four points W, X, Y, and Z are chosen at random on a circle. Find the probability that WX > YZ.

Chapter 12 Final Check Its Never Too Late 1-10 i need them please

Answers

The following answers were posted by visitors named Dom.

Had problems with the same question.

h=(2*sigma*cos(theta))/(rho*g*r) r= radius sigma= 0.123(1-0.00139T) theta=contact angle (for water=0) rho=density

x=Acos(wt) x= position A=amplitude (in a circle radius is always amplitude) w= angular frequency t= time(s) step1: convert rad-> degrees w=1.2 radians*57.29 (constant)= 68.75degrees step2: x=Acos(wt) x=.65m*cos(68.75degrees*time) just substitute time into...

First set up your cartesian coordinate system. You find that the "magnitude" of the velocity vector is the hypotenuse of your newly formed right triangle. Use trigonometric functions (sin,cos,tan) to find this x-component of the vector.

sorry, the input box above is supposed to ask how many gallons* of oil were produced

What's the area?

Thank you Mr. Steve

Thank you for the help Mr. Steve

I looked at the graph and they both look similar. I'm not sure how to put it into the proper words. Is there anyway you could explain it to me? I'm having trouble.

Yes there are many sites but not one of them shows you how to do this, appreciate you trying to help

Payah aa nak jawab soalan ni

Part A answer is n= 6.87x10^3

For my answers I put, 1). D 2). False 3). True 4). B Could someone plz confirm these

What about the second half? But the first 4 are correct.

I actually got A. But it's still 11.0 grams. Whatever your says for #9... it's 11.0 grams. :)

Well first it depend where you got it from. From ocean water its best to just boil it for about 6-8 hours. If it's lake water you need a need a filter. This gets the particles, dirt and some of the chemicals out of the water. It is wise to boil the water...

You can also use a filter for ocean water and proceed to than boil my friend.

Yea he's correct -_-

Great nothing wrong

I have 20 questions tho...

What about H2AsO4^-

Thats what I want to know

1.B 2.D 3.C 4.D

just figure out what he did when he was on the thrown and then the answers will come up

o the answer is B it and i looked up what he did and that was the only one that aliened with the question

or called metallurgy

man wow their now in 10 grade

this is vary long list but its a trick question because 38/53 is prime and it is at full capacity number wise

ya i now like this website

why are you even here then your not a teacher levee

yeah he did do his work, why did he get no help?

The answer is D

Pax is right. On Apex the answer is dP/dt=0.05P-30000

it isnt the same as all of the ones they give

The answer is 4.26

The answer is 26.80

No because why do I want to quit walmart so bad. It´s the Anna Vassar for me

Does anybody know the answers for unit one geometry unit test pls help

Helper is wrong I want over all the answers he’s all wrong