# Posts by Sophia

Total # Posts: 280

**math**

a set of five positive integers has a mean median and range of 7 how many distant sets whose members are listed from least to greatest could have these properties

**Psychology**

Describe the chi-square goodness-of-fit test.

**Psychology**

Can you give a real world example of when you would use a chi-square test of independence and a chi-square goodness of fit?

**Math 6**

ohhhhhhh 66 choices!!! Thanks!

**Math 6**

n ice cream stand sells chocolate, vanilla, and strawberry ice cream as well as a choice of 22 toppings. How many choices are there for a single flavor of ice cream with one topping? How do I do this? is it 46 choices? Am I right?

**physics**

Initial velocity not given. Assuiming that we need to solve for it. Yes, the ball is thrown 60 degrees above the horizontal. Thank you.

**physics**

If I am standing on top of a building that is 350 ft. high and I throw a baseball off the roof at angle of 60 degrees, determine how long the ball is in the air as well as how far it lands from the building.

**Science**

Which statement is true regarding nuclear energy? 1. Nuclear power produces no greenhouse gasses and thus poses no environmental threats. 2. Nuclear plants rely on a massive industrial infrastructure using fossil fuels. 3. Due to strict safety regulations, nuclear power does ...

**ela**

in the poem lineage what does they mean

**math**

16 I'm in college so I should know this 😋😃☺

**please help me!! with this science!!!!!**

ONLY Elizabeth is RIGHT. ONLY HER.

**please help me!! with this science!!!!!**

Thank you Elizabeth and Tris

**please help me!! with this science!!!!!**

Mary Chavez is wrong

**science**

Gg

**science**

You might have different traits

**science**

Fvv

**math**

Super Bowl Day!!

**math**

(5*7)/3

**cal**

sec^2(4x+y) * (4+y') = 4 4+y' = 4cos^2(4x+4) y' = 4cos^2(4x+y)-4 = -4sin^2(4x+y) Then sin^2(4x+y)=(4x/sqrt(16x^2+1))^2 =16x^2/(16x^2+1) So y' = -4(16x^2/(16x^2+1)) =-64x^2/(16x^2+1))

**math**

Len is baking a square cake for his friend wedding. When served to the guests, the cake will be cut into square pieces 1 inch on the side. The cake should be large enough so that 121 guests get one piece. How long should each side of the cake be?

**math**

A portrait of George Washington is square and has an area of 169 square centimeters. How long is each side of the portrait?

**physics**

A car accelerates uniformly from rest to a speed of 21.5 km/h in 6.9 s. Find the distance it travels during this time. Answer in units of m

**statistics**

8.5

**math**

On May 23, Samantha Best borrowed $4,000 from the Tri City Credit Union at 13% for 160 days. The credit union uses the exact interest method. What was the amount of interest on the loan?

**4 grade math**

10

**language**

감사합니다

**Algebra**

The profit for a company that sells chairs is defined by P= -5x^2+200x+200. Where P is profit and x is the number of chairs produced. Find the number of chairs "x" that will produce the maximum profit "P".

**Algebra**

An object is fired vertically upward with an initial speed of 68.6 meters/second. After t seconds, the height is shown by y= -4.9t^2+68.6t meters. Given that this object has an initial speed of 68.6 m/s, what is the maximum height it will reach? How long did it take the rocket...

**math**

15/20

**physics**

Answer is number 3

**physics**

. A block weighing 50 lbs is pulled horizontally w/ constant speed, if the coefficient friction between the surfaces in contact is 0.25, how much heat is generated by friction if the body moves a distance of 40 ft

**math**

how many grams go in 2,340 kilograms

**Math**

After 14 boys leave the concert, the ratio of boys to girls is 3 to 10. If there are p girls at the concert, write an algebraic expression for the number of boys at the beginning of the concert in terms of p

**Math**

305

**math**

How do I estimate with adding

**Chemistry**

100 years

**PHYSICS URGENT! PLEASE FRICTION CASE 2**

A 13 kg box is at rest on a level floor. The coefficient of static friction µS = 0.9 and the coefficient of kinetic friction µK = 0.8. Audrey is applying a 140 N push at an angle (=20°) as shown in Figure 1. C) What is the magnitude of FNormal on box from Earth?

**Physics! Case II**

(45N(cos25°))/25N= 1.63m/s^2

**Physics! Case II**

A woman at an airport is pulling her 25.0 kg by a strap at an angle of 25 ° above the horizontal as shown in figure Fig. P5.44. She pulls on the strap with a 45.0 N force, and friction is negligible. What is the acceleration of the suitcase? ___m/s^2

**Chemistry**

What happens when NaCl(aq) and AgNO2(aq) are mixed? Also, will the mass increase, decrease, or stay the same after the mixing? Why? Thanks!

**College International Affairs**

How did the US affect the dissolution of the Soviet Union? What was the US/ Soviet Union relationship at the time period?

**social studies**

keepin mind that other characteristics are more important than the name.

**math**

1st Step: 14x20=280 2nd Step: 280/8=35

**Math**

a box of chalk and 2 staplers cost $10. Three boxes of chalk and 2 staplers cost $18. Find the total cost of 1 box of chalk and 1 stapler.

**Precalc**

rewrite sinxtanx/(cosx+1) as an expression that doesn't involve a fraction.

**Precalc**

Rewrite cot(^2)xcosx/(cscx-1) as an expression that doesn't involve a fraction.

**Information Technology**

Develop an algorithm, flow chart and pseudocode that accept as input three unit test scores and a project score for seven students. The algorithm, flow chart and pseudocode should accept seven examination scores. The students's overall score comprised of their weighted mid...

**Math**

cscx/1-sinx

**Precalculus**

cotx-cos^(3)xcscx

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

This is all correct except for number which is Spanish army

**math**

Just took the quiz they are D B C

**math**

3x=10+13x

**Physics**

How exactly are you supposed to use the second equation to solve for Vb' if you don't know Va'^2?

**Chemistry**

@DrBob222 , can you explain how exactly you evaluated to get that number because im confused howd you got there

**Math**

The 4ft by 6ft has a solid red rectangular area that covers 1/3 of the flag. What could be the dimensions of this red area?

**Science**

During beta-particle emission, a neutron splits into a proton and an electron two protons two electrons two neutrons

**Physics**

A.) F=ma F= (50kg)(.92m/s^2) F= 46N a= 46N/60kg a= 0.77m/s^2 toward Jane

**math**

No because 4/14 Is not half of her paper If the answer was 7/14 then yes

**Spanish-8th grade**

I had to use the past tense of either poder or saber to write each sentence 1. tú y yo/mirar la televisión Tú y yo pudimos mirar la televisión. 2. nosotros/viajar Nosostros pudimos viajar. 3. los muchachos/jugar al fútbol Los muchachos ...

**medical coding**

person has upper respiratory infection w bilateral acute conjunctivitis .. whAT WOULD the code be?

**matlab**

amount= 1000; k=0; while amount < 50000 k=k+1; amount =amount*1.045 +1000; end amount k amount = 5.0711e+004 k = 26 this is the correct answer

**matlab**

amount= 1000; k=0; while amount < 50000 k=k+1; amount =amount*1.045 +1000; end amount k amount = 5.0711e+004 k = 26 this is the correct answer

**Math**

Gracias, Mi amigos

**Math**

Find the value of x or y so that the line passing through the two points has the given slope. (-1,4) (X,3); M=2/3

**physics**

What are the maximum values of the following when an incandescent 55-W light bulb (at 110 V) is connected to a wall plug labeled 110 V?

**comm215**

please help me correct my essay. the topic of the essay is:"Why overcrowding of school are causing teacher's to lose their jobs overcrowding? and how teacher layoffs are the result of overcrowding." below is a copy of the essay i wrote... One main concern both ...

**comm215**

it does not necessarily have to be facts, the answer can be based on my own opinion. I just need something to get me going.

**comm215**

I have to write a 300-400 words essay on the following questions: Why overcrowding of school are causing teacher's to lose their jobs? -how is teacher layoffs the result of overcrowding? Please help.

**comm215**

-Why overcrowding of school are causing teacher's to lose their jobs? -how is teacher layoffs the result of overcrowding?

**MATH**

WHAT IS THE UNPAID BALANCE AT THE END OF 1O YEARS OF A 250,000 LOAN WITH A INTERESRT RATE OF 6% THAT COMPOUNDS MONTHLY?

**science**

what is the height of a rock wall that is casting a 10ft shadow if a 6 ft bird watcher is casting a 14 ft shawdow

**Pre-Algebra**

What is a-3/5=1/5 ?

**English**

He took the test yesterday is it adverb or adjectives

**Algebra**

Laura can use the equation of: * 1 yard = 3 feet * 12 inches = 1 foot Figure out how many inches in a yard (36 inches = 1 yard) and then you do 36 x 20 and get your answer. Your answer will be 720 inches in 20 yards.

**Organic Chemistry**

If fructose, glucose, and sucrose are the only carbohydrates in honey, how could you use Benedict's reagent to determine the number of moles of sucrose in a 1.0g sample of honey?

**Physics**

Which would burn the most 100 g of water at 100 degrees C or 100 g of steam at 100 degrees C?

**Physics**

About how much pressure do the feet of a 6000-kg elephant exert on the ground? Assume each foot has area of 0.10 square meters.

**Physics**

What is the mass of the air in a room that has dimensions of 10m x 30m x 4m?

**Physics**

How many calories are released when 3 grams of 100º C steam turns to 0º C ice

**science**

6. identify the action-reaction pairs of forces for the following situations: (a) you step off a curb. (b) you pat your tutor on the back (c) a wave hits a rocky shore.

**algebra**

3x^3-2x^2y-8xy^2

**3rd grade math hw help!**

1polygos 1line: m w l

**accounting**

Canine Company produces and sells dog treats for discriminating pet owners. The unit selling price is $10, unit variable costs are $7, and total fixed costs are $3,300. What are breakeven sales?

**Math**

Factor 24 into primes.

**Chemistry**

“1.25 g of crushed limestone was added to 50.0 cm3 of 1.00 mol dm-3 hydrochloric acid (an excess). The mixture was left until all bubbling stopped and was then made up carefully to 250 cm3 with pure water. A 25.0 cm3 sample of this was pipetted into a conical flask and ...

**math**

You multiply pounds into ounces.

**5th grade**

How do you write a mixed number as a decimal such as 1/2 and the whole number 3? Also 3/4 and the whole number 4. Also 1/5 and the whole number 7. Thank you who will may help me!:)

**english 7th grade**

we:subject felt:action verb overwhelmed:do

**English**

what are some good acrostic poems about america

**Daily Language Review**

use context clues to determine the meaning of the boled words below

**science**

Need to use hypothesis in a sentence and draw a picture relating to it. Was Ben Franklins flying a kite a hypothesis or a theory?

**7th grade leadership**

terribly sorry....

**7th grade leadership**

ANSWER THIS QUICK BY TONIGHT!

**7th grade leadership**

This homeschooling group expects you to work harder than a college student. I need 5 subsidiary questions on "How is carrying capacity related to food supply" (you can say agriculture for the food supply) The teacher expects me to get these questions quickly and i&#...

**math**

20

**childcare**

My answer is C. locomotor reflexes

**Statistics**

quantitative

**english**

why did the mayor decide not to teach his wife how to drive in the novel the color purple?

**9th grade algebra**

daniels print shop purchased a new printer for $35,000. Each year it depreciated at a rate of 5%. What will its approximate value be at the end of the fourth year?

**Math**

i don't know