Karla

Rationalize each denominator. 6 + square root of 2 ____________________________ square root of 3 PLZ HELP..dont kno how to do this question.plz explain..thanks You have (6 + sqrt(2))/sqrt(3) multiply that by sqrt(3)/sqrt(3) to get [(6 + sqrt(2))*sqrt(3)]/...

19 years ago

A cord is wrapped around the rim of a wheel .250 m in radius, and a steady pull of 40.0 N is exerted on the cord. The wheel is mounted on frictionless bearings on a horizontal shaft through its center. The moment of inertia of the wheel about this shaft i...

18 years ago

A hollow, spherical shell with mass 2.00 kg rolls without slipping down a slope angled at 38.0 degrees. (a) Find the acceleration, the friction force, and the minimum coefficient of fricition needed to prevent slipping. You will find the moment of inertia...

18 years ago

A woman with a mass of 50kg is standing on the rim of a large disk that is rotating at an angular velocity of .50 rev/s about an axis through its center. The disk has a mass of 110kg and a radius of 4.0m. Calculate the magnitude of the total angular momen...

18 years ago

The Spinning Figure Skater. The outstretched hands and arms of a figure skater preparing for a spin can be considered a slender rod pivoting about an axis through its center . When his hands and arms are brought in and wrapped around his body to execute t...

18 years ago

Find the pH during the titration of 20.00 mL of 0.2380 M butanoic acid, CH3CH2CH2COOH (Ka = 1.54 10-5), with 0.2380 M NaOH solution after the following additions of titrant. (a) 0 mL Ive got the answer of 2.72 (b) 10.00 mL Ive got the answer of 4.81 I'm l...

18 years ago

One end of a uniform meter stick is placed against a vertical wall. The other end is held by a lightweight cord that makes an angle, theta, with the stick. The coefficient of static friction between the end of the meter stick and the wall is 0.390. A. wha...

18 years ago

A hot-air balloonist, rising vertically with a constant velocity of magnitude v = 5.00 m/s, releases a sandbag at an instant when the balloon is a height h = 40.0 m above the ground. After it is released, the sandbag is in free fall. For the questions tha...

18 years ago

By "see" I meant that I had checked my answer on the internet to see if I was correct in thinking that multipying the charge of an electron, charge of a proton, and k would yield the electrical force between an electron and proton. My answer was 23.10 x 1...

17 years ago

Molly’s age is twice Anita’s. If the sum of the squares of their ages is 80, then Translate these words into an algebraic equation to determine their ages?

15 years ago

Two cars start from the same place and travel in the same direction. If one car travels at 60 miles per hour and the other travels at 45 miles per hour, in how many hours will they be 60 miles apart?

15 years ago

13. A tree casts a shadow of 17 ft. The angle of elevation from the tip of the shadow to the top of the tree is 68°. To the nearest foot, what is the height of the tree? 14. The angle of depression of a diver from the boat is 34°, and the diver is 367 ft...

15 years ago

Acid (Unknown) Solution: HCL Molar Ratio: 1:1 Volume:20 ml Concentration:? Base(Known) Solution: NaOH Molar Ratio 1:1 Volume 26 ml Concentration:0.1

15 years ago

Use common factoring and the difference of two squares to factor each expression... 5x^2-125

15 years ago

Use the perfect square trinomial to factor each expression: 4x^2+20x+25

15 years ago

How would you make 500 mL (0.500L) of a 0.200 M HCl solution from stock concentrate of 12 M HCl?

15 years ago

According to the map,Tony' farm is just ahead. Is this an adverb phrase

14 years ago

Explain the meetings that resulted in the Japanese seeing "Rolls-Royce,Rolls-Royce,Ford" and how was this part of Americans "clamoring for the outlawry of war? I need help with this question because I don't understand the question and what exactly it is a...

14 years ago

if a student doing an experiment failed to dry the KHP before using it to standarize the NaOH solution. A) Would her calculated molarity of the NaOH solution probably be too hight or too Low?

14 years ago

Hey :) I was wondering if someone could tell me if this answer and working is correct or not... Cos theta =-0.25 Cos inverse -0.25 = -14 therefore theta equals: 180--14=194or/and 180+-14=166 Any help would be much appreciated :) Thanks!

14 years ago

During a lawnmower race, a rider starts from rest and accelerates at 1 m/s/s for 10 seconds. The rider then maintains a constant velocity for the remainder of the race, which takes an additional 20 seconds. A) How far was the race? B) What was the lawnmow...

14 years ago

Assume a bank loan requires a interest payment of $85 per year and a principal payment of $1,000 at the end of the loan's eight-year life. a) How much could this loan be sold for to another bank if loans of similar quality carried a 8.5 percent interest r...

13 years ago

I'm having a hard time with this problem. The book tells you the answer is 5, but I don't know how they got there. log(x+25)= 1+ log(2x-7)

13 years ago

Assume a block on unknown weight rests on an incline of 25 degrees and is initially not moving. What push (P) is required to start moving the block if the coefficient of static friction is 0.7?

13 years ago

When attacking Russia in 1941,Germany...

12 years ago

Consider the following data: The money supply in $1 trillion, the price level equals 2, and real GDP is $5 trillion in base-year dollars. What is the income velocity of money?

12 years ago

Sally bought 3 tickets to the observation deck at the top of a skyscraper. She paid with a five-dollar bill and got 50 cents change. What was the cost of each ticket?

12 years ago

If 45g of a 2.2% NaHCo3 solution is to be prepared how many grams of NaHCo3 are needed

12 years ago

Cepheid variables are vital for measuring the distances of relatively nearby galaxies. What is the probability of finding a cepheid variable star? State ALL your assumptions

12 years ago

in the following addition problem, each letter stands for a different digit. Find the value of X, Y, and Z XYZ + ZYX _______ YYZY

12 years ago

Bert wants to make a larger version of a drawing he saw in a magazine. The drawing fits into a square with each side measuring 7 cm. If Bert makes his copy twice the size of the square measured in the original drawing, how much space will it cover on the...

11 years ago

Need help solving these finance questions? PV = C/r PV= C/r-g P= D/r-g 1st: Tom is 30 years old today. His salary next year will be $20,000. He forecasts salary growth of 5%/year and plans to retire at 60. 1) If the discount rate is 8%, what is the PV of...

11 years ago

A bus is traveling at 79.7 kilometers Er hour east, how far does the bus travel 1.45 hours?

11 years ago

Can you please help me verify these? >sin7x-sin5x= tanx(cos7x-cos5x) >(1-cosx)cot(1/2x) = sinx >1+tanx tan(x/2) = secx Its very confusing because of all the double-half angle formulas >_<

10 years ago

Calculate the solubility of copper(II) sulfide in a solution that is 0.150 mol L^-1 in NaCN. I am very confused on what to do. Since there are no common ions, I know that this is not the common ion effect. Also I do not believe this is a pH effect questio...

10 years ago

What kind of substance has properties that reflects light very well, warms up in my hand, flattens out when it hits with a hammer and conducts electricity?

10 years ago

There eight girls competing in an ice=skating competition. In how many ways can they finish in first, second and third place? 366 1,680 2,016 40,320 I think it is 2,016

10 years ago

What is the solution to this equation? 4(x-8)+10=-10

10 years ago

How many solutions are there to the equation below? 145=10x-8x

10 years ago

how many solutions are there to the equation below? 6x+30+4x=10(x+3) I want to know how to do this problems Please and Thank you

10 years ago

How many solutions are there to the equation below? 220=2x-12x a.1 b. Infinitely many c.2

10 years ago

how many solution are there to the equation below? 3x-10(x+2)=13-7x A.1 B.0 C.Infinitely many

10 years ago

When a solution containing 8.00 g NaOH in 50.0 g of water at 25 °C is added to a solution of 8.00 g of HCl in 250.0 g of water at 25 °C in a calorimeter, the temperature of the solution increases to 33.5 °C. Assuming that the specific heat heat of the sol...

10 years ago

Genrald and Michelle went on a 24-mile bike ride. They rode 1/4 of the distance before stopping. By lunchtime, they rode 5/8 of the total distance. How many miles did they have left to ride after lunch?

9 years ago

Assuming ideal behavior, determine the mole fraction of acetone in a solution of acetone and water if the vapor pressure of acetone changed from 750mmHg to 735mmHg.

9 years ago

Mandy runs 4 km in 18 minutes if she planes to run in a 15 km race how long will it take her to complete the race

9 years ago

Mr. Josie's investment decreased 25% in value. By what percent should its value increase so it can get back to its original value?

9 years ago

In Marigolds how does the author use of tone help describe Elizabeth's perception of her childhood? -her tone sounds solemn at first showing that she was reflecting over her sad or hard childhood. Then it switches to matter of fact because she realizes sh...

8 years ago

Solve the given polynomial equation. Use the Rational Zero Theorem and​ Descartes's Rule of Signs as an aid in obtaining the first root. 2 x cubed minus 5 x squared minus 5 x minus 1 equals 02x3−5x2−5x−1=0

8 years ago

Mr. Hernandez asked his students to estimate the area of the circular garden in front of the school. If the radius of the garden is 7 feet, which statement is closest to the area of the garden

8 years ago

Which Benchmark Fraction could you use to estimate the product of 36 x 11/16 ? PLEASE HELP ME ANSWER IM STUCK IDK

8 years ago

Hydrogen peroxide decomposes to water and oxygen at constant pressure by the following reaction: 2H2O2(l) → 2H2O(l) + O2(g) ΔH = -196 kJ Calculate the value of q (kJ) in this exothermic reaction when 4.60 g of hydrogen peroxide decomposes at constant pres...

8 years ago

There were 49 students in a gym class.if 3/7 were boys and the rest were girls, how many boys were in the gym

8 years ago

What is the molecular mass of a gas that has a density of 0.897 g/L if it exerts a pressure of 1.35 ATM and is that a temperature of 43.5°C?

7 years ago

The school that Cody goes to is selling tickets to the annual dance competition. On the first day of ticket sales the school sold 13 adult tickets and 8 child tickets for a total of $108. The school took in $106 on the second day by selling 2 adult ticket...

5 years ago

An air traffic controller is in a control tower 92 m above the ground. He estimates his angle of elevation to a passing airplane to be 17o. The airplane is approximately 4800 m from the control tower. Approximately how high is the airplane above the groun...

4 years ago

lim csc x/1+cot x x=3.14

17 years ago

The problem I am having is that the instructions say to use the AMA website for your research and to find ethical opinions. The hint say: ethical opinions begin with "e". I am not able to find those using their search bar. Any suggestions? I am afraid if...

16 years ago

All are correct

15 years ago

That doesn't match the answer in the back of the book and I would like to know how to do the problem thank you

15 years ago

Equally important furthermore along with additionally moreover likewise

14 years ago

I'm still not sure on how to answer this

14 years ago

I suggest LBJ I mean lol *

14 years ago

I can choose two ! I really wish Reagan was here :(

14 years ago

Does he get what back?

14 years ago

Thanks!

14 years ago

Find the amount accumulated in the sinking fund it $450 is deposited monthly for 20 years at 9% per year? (assume end_of_period deposits and compounding at the same intervals as deposits. Round your answer to the nearest cent.)

12 years ago

198/18=11

10 years ago

of 1.79 M CuSO4(aq).

10 years ago

Thanks! Just to clarify, is CuS considered a solid and not included in the calculation of k? I made an ice table and got the following equation: x^2/(0.150-4x)^4 = 2.66 x 10^-7 Is this the right process? Thanks.

10 years ago

Ok, thanks for your help!

10 years ago

A. Warmer Ocean Temperatures

9 years ago

Nelson got a pack of 12 pencils he took three pencils to put in his desk at school and 2 pencils his locker at school what is a fraction of total pencils that nelson took to school?

9 years ago

3n+5

9 years ago

The answer is 4 because 9-5=4. Not exactly sure how this is the answer, but that's the answer.

9 years ago

4.5ft

8 years ago

A)6,200

8 years ago

y67666527

7 years ago

m∠KEP = 90° m∠EKP = 74° m∠EPK = 16° m∠N PM= 16° m∠MNP = 16 m∠M = 148°

7 years ago

400/x + 160/x + 240/(x-20) = 11 x = 80, 140/11 80 - 20 = 60 60 km/hr

6 years ago

2 feat=24 5 inc =. 5 +____ 29

6 years ago

What was the answer exactly?

6 years ago

C try to observe each child without being noticed

5 years ago

TYSM that is 100% correct ^^^

4 years ago

1.c 2.true 3.c 4.c 5.b 6.b 7.d 8.b 9.false 10.false 11.c 12.a 13.d 14.c 15.c 100% correct and ur welcome :)

4 years ago

this betta be right or ima cry

4 years ago

Yes, so the economic profit is $40

4 years ago

its 12 ;w;

4 years ago