# Posts by Rosa

Total # Posts: 237

**Math 114**

Solve and check x+y=12;y=3x x+y=12;y=3x x+3x=12 4x=12 4x/4=12/4 x=3 y=3x y=(3)(3) y=9

**Math 114**

what is the solution of the system of equations of x-y=-3 and x+y=5? x-y=-3 x+y=5 y=x+3 0+y=5 x=3 0=0+y=5+0 y=x+3 y=5 y=3+3 y=6

**Math 062**

A 170 pound person burns 252 calories during 30 minutes of tennis,find the number of calories a 210 pound person would burn during the same activity.

**Math 062**

if 3 pounds of grass seed cover 403 square feet,how many pounds are needed for 5642 square feet?

**Algebra**

Mrs. Hill is 4 years older than twice her sons age. If the sum of their age is 50, how old is her son?

**Pre Cal**

An airplane travels due west for 2.5 hours at 340 miles per hour. Then it changes course to S51°W. Find the airplanes distance from its point of departure and its bearing, after a total flight time of 4.5 hours.

**Chemistry**

calculate the energy needed to warm the melted ice from 0 degrees celsius to the final temperature of the water

**Algebra**

Container A and container B have leaks. Container A has 800 ml of water,and is leaking 6 ml per minute. Container B has 1000ml,and is leaking 10 ml per minute. How many minutes,m,will it take for the two containers to have the same amount of water.

**Algebra**

nancy has $250 in her savings account. she plans to save $15 per week from her salary. annie has only $200 in her account but she can save $20 a week from her paycheck. How weeks will it take before the amount in each saving account is the same?

**math**

on average , exante express trains are 50km/h faster than Paral passenger trains. A paral train requires 60% more time than an exante train to travel 1800 km from matsay to rawindi calculate the average speed of each train calculate the time it takes each train for the journey

**Algebra**

Solve: 8x-7/3=11

**Algebra**

Solve for L:d=Lh/R1R2

**Algebra**

Find the missing variable for a parallelogram: A=25in squareh h= b=3.4in (in=2.54cm)

**Grammar**

The answer to the question above, is wrong. 'studying grammar" this phrase functions as a direct object in the following sentence: I hated studying grammar when I was in school. The correct answer is B. Direct Object

**Social Studies**

How was John Adams and Thomas Jefferson similar when it came to political ideas, political minds ,and visions for the new republic?

**English IIB**

I need all these answers?

**english**

What is the simple subject and simple predicate in the sentence We went to lunch with Amar and his friend today.

**statistics**

Same here, can you be more detailed with letter A?

**Math**

3/5

**History**

Does this sound good for my History homework: History is an interpretation of evidence. It provides a meaning and explanatory to why history has caused a big impact on our life today. At one time, every nation tried to vanquish one another that generated the two world wars. ...

**grand caynon PSY**

how has psychology been impacted by the philosophical and religious theories of child rearing?

**university of phoenix criminal justice**

what are the effect on local law enforcement when they are require to enforce federal laws?

**6TH GRADE**

Are u guys for real

**math packet**

4*-3/5 divided -9/10

**math packet**

maria has $1.05 in dimes and nickels. She has 6 more nickels than dimes. How many nickels does she have?

**Teachers aide**

A child who accepts failure readily is probably demonstrating a sign of _______ abuse.

**Math**

Okay. Thank you very much, Ms. Sue, I will.

**Math**

Is this the only solution? I do apologise for sounding rude, but they are generally more difficult than they appear.

**Math**

Last Problem of the Week this year! Having a bit of trouble with it: In how many ways can seven basketball players of different heights line up in a single row so that no player is standing between two people taller than she is? Does it have anything to do with 7! or am I on ...

**Compensation Management**

which of the following statements is best descriptive of why many suggestion plans have failed

**UNIVERSITY**

a sound wave has a beta that is 10 dB, calculate the intensity of the sound wave in units of international standards and the amplitude of the pressure wave

**Resources for educating young children**

A portfolio should?

**math**

So did I - thank you so much!! I have spent hours on this one and I am sure you are right.

**math**

Air is pumped into a balloon such that its volume increases at the rate of 75cm^3 per second. It is assumed that the balloon is spherical all the time. Find in term of pi the rate at which the radius of the balloon is increasing when the radius is 5cm. Given the balloon was ...

**us history**

8)d 9)b 10)d everything else looks good

**Business**

Imagine you are an executive for BP, and you are preparing a presentation for the board of directors about the organization’s direction. Create a 10- to 15-slide Microsoft® PowerPoint® presentation, with speaker notes, in which you address

**US History**

the answers are A. Remained the same B. Shrunk to include less area C. (Expanded to include more area) D. Changed shape but retained the same size The one in parenthesis is my answer

**US History**

as population increases the borders of Boston?

**math (algebra honors)**

the edge of one cube is 2 cm shorter than the edge of a second cube. The volumes of the two cubes differ by 386cm^3. Find the edge of the smaller cube.

**math**

The height will be 4m3

**Elgin Elem**

From 3:00 pm to 3:45 pm the minute hand of a clock turns how many degrees?

**Math**

dont know

**US History**

The answers are 1. steamboat 2. canal system 3. horse-drawn cart 4. steam locomotive I think the answer is 1 or steam boat

**US History**

which transportation development had the greatest long-term impact on the american economy?

**Chemistry**

19130.526MJ/HR

**Physics IMP**

An infinitely long wire carrying a current of 2 A is bent at a right angle as shown in the Figure. What is the magnetic field magnitude in Tesla a point P, 10 cm from the corner? I can not draw pic here but I will try to describe it: Point P is in right side straight from bend...

**Physics IMP**

An infinitely long wire carrying a current of 2 A is bent at a right angle as shown in the Figure. What is the magnetic field magnitude in Tesla a point P, 10 cm from the corner? I can not draw pic here but I will try to describe it: Point P is in right side straight from bend...

**Physics IMP pls**

An infinitely long wire carrying a current of 2 A is bent at a right angle as shown in the Figure. What is the magnetic field magnitude in Tesla a point P, 10 cm from the corner? I can not draw pic here but I will try to describe it: Point P is in right side straight from bend...

**Physics IMP**

A large heavy box has its center of mass at a distance l from a bottom corner and at an altitude h above the ground. At what critical angle alpha does the box start to fall over when it is tilted? Assume that the bottom corner of the box has a large friction coefficient with ...

**physics**

Consider two solid uniform cylinders that have the same mass and length, but different radii: the radius of cylinder A is much smaller than the radius of cylinder B. Rolling down the same incline, which one of the two cylinders will reach the bottom first? Assume both ...

**physics**

sorry guys.I did it

**physics**

A metal wire has a resistance of 8 ohm at a temperature of 20 degree celcius . If the same wire has a resistance of 8.40 ohm at 70 degree celcius , what is the resistance of this wire in ohms when its temperature is -10 degree celcius ?

**physics**

sorry I did it

**physics**

A metal wire has a resistance of 8 ohm at a temperature of 20 degree celcius . If the same wire has a resistance of 8.40 ohm at 70 degree celcius , what is the resistance of this wire in ohms when its temperature is -10 degree celcius ?

**Physics**

u=0,theta=65 degrees, t=9.20s h= (u^2*sin^2theta)/(2*g) solve this and get h..

**Physics**

In this following example, just keep v_0=9.8v_x and solve in the same way... The speed of the projectile can be broken into two velocity components. Vy and Vx. At maximum height Vy is equal to 0. The velocity vector V=(Vy^2+Vx^2)^1/2 We also know, that the initial speed of the...

**Physics Important please**

Hi, Damon I got it. Thank you

**Physics Important please**

Hi Damon, R_1 is inner radius and R_2 is outer radius of yo yo which looks like concentric circle and beta is the angle in right side of that yo yo. I hope this will help to complete the question. I don't know how to draw image here.

**Physics Important please**

A yo-yo of mass m rests on the floor (the static friction coefficient with the floor is mu ). The inner (shaded) portion of the yo-yo has a radius R-1 , the two outer disks have radii R-2 . A string is wrapped around the inner part. Someone pulls on the string at an angle Beta...

**Physics Important please**

A yo-yo of mass m rests on the floor (the static friction coefficient with the floor is mu ). The inner (shaded) portion of the yo-yo has a radius R-1 , the two outer disks have radii R-2 . A string is wrapped around the inner part. Someone pulls on the string at an angle Beta...

**Physics Important please**

A yo-yo of mass m rests on the floor (the static friction coefficient with the floor is mu ). The inner (shaded) portion of the yo-yo has a radius R-1 , the two outer disks have radii R-2 . A string is wrapped around the inner part. Someone pulls on the string at an angle Beta...

**Physics Important please**

A yo-yo of mass m rests on the floor (the static friction coefficient with the floor is mu ). The inner (shaded) portion of the yo-yo has a radius R-1 , the two outer disks have radii R-2 . A string is wrapped around the inner part. Someone pulls on the string at an angle Beta...

**Physics Urgent please help**

Thank you Damon

**Physics Urgent please help**

A figure skater stands on one spot on the ice(assumed frictionless) and spins around with her arms extended. When she pulls in her arms, her moment of inertia decreases to 3/4 of the initial value. Assume that her spin angular momentum is conserved. What is the ratio of her ...

**college physics**

A small sphere of mass m and charge +q with zero velocity falls under the influence of gravity (acceleration = g from height h onto an infinite uniformly charged plane with positive charge density sigma as shown below. What will the velocity of the sphere be when it hits the ...

**Physics Urgent please help**

A small sphere of mass m and charge +q with zero velocity falls under the influence of gravity (acceleration = g from height h onto an infinite uniformly charged plane with positive charge density sigma as shown below. What will the velocity of the sphere be when it hits the ...

**Physics**

A small sphere of mass m and charge +q with zero velocity falls under the influence of gravity (acceleration = g from height h onto an infinite uniformly charged plane with positive charge density sigma as shown below. What will the velocity of the sphere be when it hits the ...

**Phyics**

u=4m/s when constant speed, acceleration a=0 distance s=4.77 time t=? s=u*t+1/2*a*t^2 s=u*t because a=0 t=s/u=4.77/4 t=1.77 sec.

**math,,,,helpp**

describe strategies you have found for deciding whether a fraction is between 0 ans 1/2 or between 1/2 and 1???????????????????

**math**

i need help with this question!!! describe your strategy for finding a fraction equivalent to a given fraction?

**public speaking**

The speaker is the ____________ of the message. A. decoder B. encoder C. transmitter (NOT C) D. channel

**public speaking**

A. Introduction B. Conclusion C. Personal Story D. Body i was thinking c because d is wrong

**public speaking**

When preparing an outline for a speech, which of the below is NOT a part of the speech outline?

**algebra**

a baby weight only 9.9 ounces at birth. how much lighter was she than an average baby who weighs about 7 lb 8 ounces

**math**

Can you please explain this to me and how you got the answer ~ Jasmin is solving the equation below X^2-10x=9 what should she add to both sides to complete the square

**math**

the perimeter if a fence is 48 meters. if the width is 2 meters less then the length, find the with

**Physics**

Three forces act on an object at the same time. F1 = 100. N at 30.0degrees north of east, F2 = 200. N at 45.0degrees north of west, and F3 = 100. N at 30.0degrees east of south. What are the magnitudes and direction of both the resultant force and equilibrant force?

**Physics**

Three forces act on an object at the same time. F1 = 10.0 N 50.0degrees north of east, F2 = 15.0 N 25.0degrees south of west, and F3 = 15.0 N 38.0degrees east of south. What is the magnitude and direction of the net force?

**Physics**

A golf ball has a mass of 0.05 kg and acquires a speed of 80.0 m/s when hit with a force of 3000 N. how long was the club in contact with the golf ball?

**chemistry**

If, in the reaction below, 31 g of C4H10 produces 41 41 g of CO2, what is the percent yield? Assume that the one reactant is limiting. 2C4H10 + 13O2 + 10H2O

**ENGLISH**

I live at 1502 Fourteenth Street.

**math**

please HELP WITH MATH PROBLEM

**math**

jane has a dog that eats 0.8 pound of dog food each day . she buys a 40 pound bag of dog food. how many days will this bag of dog food last ?????

**algebra**

Find the second and fifth terms of A(n)=22+(n-1)11 and A(n)=-2+(n-1)(-2)

**Math**

When the last digit is 4 or less to what number you rounded in 852?

**ANT**

Amok (murderous raging) in Malaysian culture, susto (e.g., spirit attack) in Latin America, and fright in Caribbean Creole are all examples of

**Math**

I am thinking of an odd two digit number.The sum of its digits is eight.The difference of its digits is six. It is greater than ten and less than twenty. What is my number?

**logic**

A person who is shown his or her argument commits a fallacy should run screaming from the room. argue louder. add another fallacy. revise the argument.

**Prob&stats**

Search results for: Using numbers 1-20 what is probability a randomly chosen number is either an even number or a number greater than 14?

**Prob&stats**

Search results for: Using numbers 1-20 what is probability a randomly chosen number is either an even number or a number greater than 14?

**trig**

Choose the percent increase or decrease for the before and after measurements: 12 (before) and 12 (after) a) not given b) increase of 30% c) decrease of 25% d) increase of 25%

**Chemistry**

Sodium hypochlorite, NaClO, is added as a disinfectant to the water supply. You are analyzing a sample from the supplier to verify its purity and you prepare to titrate 250.0 mL of a solution containing 1.86 g of NaClO with a 1.00 M HCl solution. What is the pH of the solution...

**chemistry**

How many grams each of cacodylic acid and sodium cacodylate trihydrate, do you need to add to 2.00 L of water to prepare a pH 5.60 buffer solution with a total buffer concentration ([(CH3)2AsO2H] + [(CH3)2AsO2 -]) equal to 0.0100 M?

**english 9**

why does speakerin the poem think that the you made the right decision to put himself?

**College Algebra**

9x^-4-35x^-2-4=0

**college algebra**

9x^-4-35x^-2=0

**Alg. 2**

Never mind i got it. You're suppose to divide the 2 into -4 from (2x-4) then do synthetic division!

**Alg. 2**

Hello so I'm suppose to Determine whether the given binoial is a factor of the polymonial P(x) and here's the question (2x-4); P(x)=2x5-4x4+2x2-2x-4 I keep going over and over it and end up with ridiculous numbers -_- please help! thank you

**Geometry**

If the measures of the exterior angles of the acute angles of a right triangle are (6x+23) and (4x+17), find the measures of the acute angles.

**english**

what are some example of overcompensating