# Posts by savannah

Total # Posts: 246

**Problem solving:for 3rd grade**

Jimmy gave 10 cupcakes to his best friend Bob. Bob ate 3. How many did Jimmy have left? 10 - 3 = 7 So, Jimmy has 7 cupcakes left over.

**Physics**

Joyce and Efua are skating. Joyce pushes Efua, whose mass is 40 kg, with a force of 16 N. The force of friction between Efua's skates and the ice is 2 N. What is the magnitude of the net force exerted by Joyce on Efua?

**7th grade social studies Ms.Sue please**

I got a 100 from Mo

**Physical science**

A hot iron ball is dropped into 200g of cooler water. The water temperature increases by 2.0 degrees C and the temperature of the ball decreases by18.6 degrees C. What is the mass of the iron ball?

**algebra**

the houston texans sell styrofoam fingers to make a profit. Profit made from styrofoam fingers sales is function of numbers sold. Which of the following is the independent quantity in this function?

**algebra**

Which linear equation represents the statement "the quotient of 17 and y is 9 less than four times x"?

**Physics**

The acceleration of gravity at the surface of a newly discovered planet is 5.2 m/s^2. An astronaut throws a rock straight up at 10.5 m/s on this planet. How high will it go? Please help!!!

**Physics**

If a ball has an initial downward speed of 24 m/s, how far does the ball drop during the 4 s to 5 s interval

**Physics**

A ball is dropped from rest off a 34 m building. How long does it take to hit the ground at the bottom of the building?

**Math**

Oh I typed it wrong!! Haha

**Math**

More specific @Miss.Sue?

**Math**

Unit rate Driving 180 miles for 18 people? I think its 60 ? Am I right?

**Math**

Unit rate 160 words typed in 4 minutes?

**math**

HELP?! Unit rate for 54 hotdogs for 18 people? Show work so I can understand thanks!

**Math**

1)The break-even point is the ticket price for which the event's income will equal expenses. Another way to think of the break even point is the ticket price when profit is $0. The equations given in an earlier problem were: P=((4000-25X)x)-7500 I=((4000-25x)x) S=4000-25x ...

**math**

7 & 11 are both prime numbers between 6 & 15. 7*11=77

**help please :)**

Disability Insurance. In 1954, Congress made full disability (the physical or mental inability to work) part of the Social Security Act. If a worker qualifies for social security and becomes totally disabled, he or she can receive the same benefits as a person retiring at 65. ...

**trig**

(-10√2, -10√2), find te magnitude and direction angle of the vector, measure the direction angle in [0, 360). Please help!

**Physics**

-34.3 J and 45.93m/s

**Algebra**

The area of a circle is given by the formula A+pier^2, where r is the radius. If increasing the radius of a circle by 1 inch gives the resulting circle an area of 100pie square inches, what is the radius of the original circle?

**Chemistry**

A solution of NaOH with pH 13.68 requires 35.00 mL of 0.128 M HClO_4_ to reach the equivalence point. How do you calculate [Na^+^] and [ClO_4_^-^] at the aquicalence point? (volumes are additive)

**Chemistry**

How do you get the pH 13.68 into OH^-^?

**chemistry**

How do I do convert the pH to the OH?

**chemistry**

A solution of NaOH with pH 13.68 requires 35.00 mL of 0.128 M HClO_4_ to reach the equivalence point. What is the volume of the NaOH solution?

**Math:Ratios**

This is 6th Grade math by the way.

**Math:Ratios**

The Ratios for students who have a computer to those who do not are 22;8 while the ratio for the ratio of students who have a cell phone to those who do not is 12;18. Which is greater?

**math**

At one tennis match, there were about 6000 people.about 40% more people attended the second match than the first match about how many people were at both games?

**math**

if two triangles are similar, what can you say about the ratios of the two side lengths within one triangle and the ratios of the corresponding side lengths in the other triangle? HELP ASAP!! THANK YOU TO WHOEVER HELPS!!

**Marketing**

Can you give me an example of a product and its marketing mix? By marketing mix, I am referring to the 4 P’s of Marketing- Price, Product, Place and Promotion For example like Yoplait, but I am not sure how the company uses the 4 P’s

**math**

At a given time, the height of an object is directly proportional to the length of the shadow that is cast on the ground. A person 6 feet tall casts a shadow 1 foot long at noon. a) What is the length of the shadow cast by a flagpole known to be 20 feet tall? b) A tree cast a ...

**3 grade english**

*The light from stars travels a long way.*

**Calculus AB**

Ugh the pi symbol didn't work. All of the ð should be pi. so it would be a(t) = picos(pit) and my answer should be sin(pit) + C

**Calculus AB**

A particle is moving along the x-axis so that at time t its acceleration is a(t)=ðcos(ðt) At time t=1/2, the velocity v of the particle is 1/2. Find the velocity of the particle at any time t. I think I got that right, as sinðt + C. Now it wants the minimum ...

**Trigonometry**

Oh that makes sense. That 2sin^2x + 13sinx - 7 can be factored. Thanks!

**Trigonometry**

2cos^2(x) = 13sinx - 5 How do i solve for x? I think i have to use the sin^2x + cos^2x = 1, but I'm not sure how to use that. I thought about maybe doing 2(1-sin^2x) = 13sinx - 5 but then i get stuck. Any suggestions?

**Physics**

Lai threw a ball downwards with an initial velocity of 11.0 m/s. What is in meters the displacement of the ball during the 2.9 seconds after she threw it? (don't include units in the answer, use 10.0 m/s2 for g and use the upward direction as positive)

**Calculus AB**

Nevermind I think I figured it out. I can just leave k in there and solve for it later.

**Calculus AB**

The rate of growth dP/dt of a population of bacteria is proportional to the square root of t, where p is the population size and t is the time in days (0<equal t <equal 10). That is, dp/dt = ksqrt(t). The initial size of the population is 500. After 1 day the population ...

**3rd grade math**

3×9=27

**Calculus AB**

Find a, b, c, and d such that the cubic function ax^3 + bx^2 + cx + d satisfies the given conditions Relative maximum: (2,4) Relative minimum: (4,2) Inflection point: (3,3) So this is what I have so far: f'(x) = 3a^2 + 2bx + c f''(x) = 6ax + 2b f(2) = a(8) + b(4...

**math**

This is going to involve trig functions. you have the angle, and if you draw a triangle and fill in the numbers, you'll see that the length of the slide is the hypoteneuse of this triangle. You are looking for the height of the triangle, which is the side opposite of the ...

**Happiness**

80%

**chemistry**

Please help me! i have no clue how to do this and its for my hw!

**chemistry**

well how do you work them out?

**chemistry**

are this 2 equations the same NIE? and if not how come? Write a net ionic equation for the reaction that occurs when aqueous solutions of ammonia and acetic acid are combined. Write a net ionic equation for the reaction that occurs when aqueous solutions of acetic acid and ...

**chemistry**

well it said it was wrong the way it was done on the other one

**chemistry**

Write a net ionic equation for the reaction that occurs when aqueous solutions of sodium hydroxide and perchloric acid are combined.

**cheistry**

Write a net ionic equation for the overall reaction that occurs when aqueous solutions of hydrosulfuric acid and potassium hydroxide are combined. Assume excess base.

**Chem**

Does any solid PbCl2 form when 3.1 mg NaCl is dissolved in 0.228 L of 0.12 M Pb(NO3)2. Find the Qsp.

**College Chemisrty**

Molarity is moles/Liter. First you need to convert 140g to moles. After you do that, you divide your answer by .400L to get your molarity.

**Math**

0 = 5+2(3+4x) Subtract 5 from both sides -5 = 2(3+4x) Distribute the 2 -5 = 2(3) + 2(4x) Simplify -5 = 6 + 8x Subtract 6 from both sides -11 = 8x Divide both sides by 8. -11/8 = x y = 5-2(3+4x) 0 = 5-2(3+4x) -5 = -2(3+4x) -5 = -6 - 8x 1 = -8x -1/8 = x Now you try the last one

**physics**

Two objects with masses of 3.00 kg and 7.00 kg are connected by a light string that passes over a frictionless pulley (a) Determine the tension in the string. .N (b) Determine the magnitude of the acceleration of each mass. .m/s2 (c) Determine the distance each mass will move ...

**physics**

A woman at an airport is towing her 21.0 kg suitcase at constant speed by pulling on the strap at an angle of è above the horizontal (Fig. P4.40). She pulls on the strap with a 34.0 N force, and the friction force on the suitcase is 11.0 N. (a) What angle does the strap...

**physics**

A hockey puck is hit on a frozen lake and starts moving with a speed of 10.6 m/s. Five seconds later, its speed is 6.10 m/s. (a) What is its average acceleration? m/s2 (b) What is the average value of the coefficient of kinetic friction between puck and ice? (c) How far does ...

**Chemistry**

What is the element oxidized and the element reduced in the equation: HAsO2 + 2 Ag+ + 2 H2O 2 Ag + H3AsO4 + 2 H+

**Physics**

A boat moves through the water with two forces acting on it. One is a 1500 N forward push by the motor, and the other is an 1400 N resistive force due to the water. (a) What is the acceleration of the 1100 kg boat? m/s 2 (b) If it starts from rest, how far will it move in 7.0 ...

**science**

jason weighs 10kg. the force of gravity is 9.8 m/s2. what is the amount of force jason is applying to the ground when standing?

**science**

jason weighs 10kg. the force of gravity is 9.8 m/s2. what is the amount of force jason is applying to the ground when standing?

**Math story problem**

83,8.30,8.00,0800

**chemistry**

The radius of a barium atom is 217 pm. How many barium atoms would have to be laid side by side to span a distance of 4.33 mm?

**chemistry**

The mass of a single silver atom is 1.79E-22 grams. How many silver atoms would there be in 112 milligrams of silver?

**physics**

The figure below shows a general situation in which a stream of people attempt to escape through an exit door that turns out to be locked. The people move toward the door at speed v = 4.1 m/s, are each d = 0.30 m in depth, and are separated by L = 1.75 m. The arrangement in ...

**geometry**

GIVEN THE NOTATION BELOW PLACE = OR =WITH SQUIGGLY LINE OVER IT IN THE BLANK TO SHOW THE CORRECT SYMBOL THAT SHOULD BE USED. EX. XY___AB

**Accounting**

What is the maturity value of a 120-day, 4 % note for $ 18,000

**English 3**

I already read this book, twice, and i loved it. Steinbeck creates an unsettling/calm atmosphere. Almost as if everything is TOO peaceful.

**Math**

Whole Number Math Riddle Clue 1: Double my tens digit and get my ones digit. Clue 2: Double me and I am less than 50

**Physics**

The normal force and the centripetal *force need to equal eachother if the car is to remain grounded, so N=mV^2/r or mg=mV^2/r and then the masses cancel and we have g=V^2/r or v^2=gr.

**math**

when you work out the problems you end up with aviseman which i am pretty sure means a vice man

**physics**

You are driving a car with a power output of 56,000 Watts. How many seconds will it take to go from 0 m/s to 27 m/s?

**finding perimeters**

tell the dimensions and perimeters : 9 square inches

**Business Communications**

Which of the following would be the MOST useful strategy for learning to communicate effectively with international employees working in your overseas divisions? a) Devote time to learning the rules for communicating with people from each of the countries you will be ...

**Business Communications**

Crystal agreed to serve on a company’s advisory board and now has to contact them to say she cannot attend a scheduled meeting where she was to be one of the several key speakers. What should she do? a) Let the company know she cannot attend and that they will have to ...

**6th grade science**

science math social studies

**math**

which is greater and less than <>

**Math**

What kind of graph is two circles put together called?

**3rd grade math**

mrs.stewart is my tacher

**contemporary Math**

If there are 2 red disks numbered 1 through 2, and 6 yellow disks numbered 3 through 8, find the probability of selecting a red disk, givent that an odd-numbered disk is selected?

**3rd grade**

I need help!!!!

**Algebra 1**

how do i work out the equation S= B + 1/2Pl solving for l

**English**

How does the Scarlet letter A affect Hester Prynne's personality and her thinking concerning the position of women in society?

**Media Studies**

Hi I posted my essay topic earlier; but could anyone give me some ideas of the role of journalism in the digital society?

**Media Studies**

Hi, I am writing an essay for my media studies class on the topic; Has digital technology made professional journalists obsolete? What is the role of journalism in a digital society? Can anyone give me ideas for arguments I can come up with or evidence. Thanks

**consumer/business math**

Haha Its funny because the person calling people a retard is the one who got it wrong. $348.50

**Math 3**

Use the digits 3, 7, 1, & 5 to write a number that rounds to each of the following numbers. 1700, 3500,1600 and 7400

**History**

I need to Analyze the social/cultural/economic responses of the British, French, and Spanish to the Native Americans of North America prior to 1750

**science**

no its metalloids

**algebra**

please i need help factoring these problems....20xy, 36g^2h^2, and 44m^2n

**algebra**

its in my work book....and it says factor eaxh expression...and one of them is 20xy....the problems before this is find the prime factorization of each number....and then it takes me to this algebra...factor each expression...20xy, 44m^2n, 36g^2h^2

**algebra**

i have got a lot of math problems to do...if you can just help me with 3 of these problems...i could do the rest...thank you so much!! factor each expression::: 1. 20xy 2. 36g^2h^2 3. 44m^2n

**english**

On Frankeinstein on the continuation of walton's letter, how does walton avoid the threat of a mutiny? and why is walton returning to England? What will Victor do?

**Statistics**

Suppose a bag contains 7 red chips, 8 black chips, and 3 green chips. You draw two chips (without replacement) from the bag. Find the probability that you drew a red chip ﬁrst and then a black chip second.

**physics**

dude i have no idea!

**math**

what is 150 divided by 2

**math**

thanks

**math**

how do u calculate the area of a triangle

**math**

9/8 which =1 1/8

**math**

what is half of 2 1/4

**math**

4,000

**math**

my bad how many mLis 4 liters

**math**

how many mL is 4 litters