# Posts by katie

Total # Posts: 2,096

**PHYSICS**

In your moving car, you covered 2.0 m during the first 1.0 s, 4.0 m during the second 1.0 s, 6.0 m during the third 1.0 s, and so forth. Find the acceleration.

**Poetry**

Jadore is right thank you!!! <3333

**Math**

Thank you! 21y 21 X 42= 882 I get it! Thank you!

**Math**

An orchard has enough space to plant 21 rows with y trees in each row, or 18 rows with y+7 trees in each row. If each orchard plan contains the same number of trees, how many trees can each orchard contain? *I know the answer is 882 trees. But, I have no idea how to set up the...

**Algebra**

Thanks Damon I tool all the notes on the lessons that they gave me I just counldnt figure out what to do because all of the examples didn't have this kind of formula. Thanks again

**Physics**

Then air exerts a forward force of 8 N on the propeller of a 0.25 kg model airplane. If the plane accelerates forward at 1.8 m/s^2, what is the magnitude of the resistive force exerted by the air on the airplane? Answer in units of N.

**4 grade division**

Do you mean 368/6? 6x6=36 with zero left over, next step, Bring down the 8 6 goes into 8 one time with 2 left over so 61 r2

**Physics**

The driver of a car is going 30 m/s slams on his brakes, the car's tires lock, and the car skids to a stop on a level roadway. The kinetic coefficient of friction between its tires and the pavement is 0.75 as it slides. Draw a free body diagram of the car, find its ...

**math**

OK what?

**math**

Write an equation with a variable on both sides of the equal sign that has infinitely many solutions. Solve the equation and explain why it has an infinite number of solutions. I have no idea?

**math help plz?**

Ok thank ya'll so much. :)

**math help plz?**

So its D?

**gRammar**

True

**Math**

Ok, I get it now. Thank you.

**Math**

The length of a rectangle is 5 inches less than 3 times the width. The perimeter of the rectangle is 14 inches. Find the length and width of the rectangle. I did this: Length 3x-5; width 3x Then I did guess and check and came up with X=2 solving the problem with a perimeter of...

**Math**

Jim uses ribbion to make bookmarks. Jim has 9 feet of ribbion. He uses 1/3 foot of ribbon to make each bookmark. What is the total number of bookmarks J makes with all 9 ft of ribbon?

**math**

Maybe they are asking how much was added to get 4.87? Then you would subtract 4.87 and 3.93 to see how much was added.

**Math**

Yay! Thank you!

**Math**

I found x=4 and y=8 is that right? Then I found the area is 16. Is that right?

**Math**

A right triangle is formed by the origin and the x and y intercepts of the line 14x+7y=56. Find the area of the triangle. I know that Area of a triangle is 1/2bh, but how do I find the base and height? Thank you.

**Math**

Thank you!

**Math**

One triangle has side lengths 3,5, and 6. A similar triangle has side lengths 18, 15 and 9. Which of the following ratios is the scale factor of the triangles? A 1/6 B 1/3 C 1/5 D 2/3 The answer is given as B, but I don't understand why or how to get that. Please help.

**Math**

Yes, I want exactly 10 of the 50 classes to contain no left handers. So, instead of using .08 as the p for the last part, I should use the probability found from no left handers in a class of 20 instead? The question did ask me to find this as well, although I didn't put ...

**Math**

URGENT! In a school, 8% of students are left handed. If 50 classes of 20 students are randomly selected, what is the probability of 10 classes have no left handed students? I know that this is a binomial distribution question, but I can't seem to do this question even ...

**Chem**

what is the mass in amu of 3.12 moles of Ba(NO3)2?

**Science**

What laboratory instrument utilized the wave nature of electrons?

**Math 141**

Two cards are drawn from a well-shuffled deck of 52 playing cards. Let X denote the number of aces drawn. Find P(X = 0). (Round your answer to three decimal places.)

**math**

My answers 1. C. 10 2.D 9 3. B 12 4.c 8 100% correct trust me will pass it ! Just took the test

**precalc**

I don't understand how to do these w/o calc. I tried to write it in a way that will make someone understand how to read it. Hope I typed it clear enough.Thanks so much for the help anyone! How to find the exact value of logarithm: 10. log5^100 -log5^4 11. log4^8 +log4^8 12...

**Math 141**

Box A contains 3 white marbles and 4 black marbles. Box B contains 6 white marbles and 5 black marbles. An experiment consists of first selecting a marble at random from Box A. The marble is transferred to Box B and then a second marble is drawn from Box B. What is the ...

**Math 141**

Three machines turn out all the products in a factory, with the first machine producing 20% of the products, the second machine 15%, and the third machine 65%. The first machine produces defective products 17% of the time, the second machine 8% of the time and the third ...

**precalc(LOGS) CONFUSED!**

How do I rewrite without logarithms?? 2. log x= log a - 4 log b 3. ln t= 3/2 ln a - ln p 4. log y = 3 log x + log 17

**Precalc**

i figured C. I'm really stuck on b &d. btw. I can't use a calculator to figure these because we aren't supposed to. How do you find it out w/o using calc.

**Precalc**

Given log2=0.3010, log3=0.4771, log5=0.6690, and log7=0.8451... Find a.) log8 b) log5/7 c.) log1.5 d.) log3/14 e) log12 I didn't know how to do b, c, and d. I also don't know if log 12 is right. Answer: a.) 0.903 b.)? c.)? d.)? e.) 1.0791

**Math Please check**

Okay, so I have to reduce my answer then I will have it right. Thank you!

**Math Please check**

-4x+3y=12 Solve for y I got: 12+4x/3 Is that right?

**Math**

Steve please help or somebody please help

**Math**

Please help

**Math**

Is the simplified form of 2square root of 3 ⋅ 2square root of 6 rational? Yes or No

**Math**

Thank You

**Math**

Which of the following options results in a graph that shows exponential growth A.f(x)= 0.4(3)^x B.f(x)= 3(0.5)^x C.f(x)= 0.8(0.9)^x D.f(x)= 0.9(5)^-x

**Math**

Thank You so much

**Math**

Which of the following options is an equivalent function to f(x) = 3(2)3^x? A.f(x)=3(8)^x B.f(x)= 24^x C.f(x)= 27(8)^x D.f(x)= 3(8x)

**Social Studies**

Who won the battle of the Atlanta Campaign

**Social Studies**

Interesting facts😑😑😑😑😑😊

**Social Studies**

Wat r 10 facts u didn't know about the Atlanta Campaign

**English**

Just took the test the answers are: 1)B 2)A 3)Flase Sorry if you got it wrong because she didn't say the answer. I personally did the whole lesson but still had trouble with the test.

**Math**

(3p-pq^3)2pq= I got: 6p^2q - 2p^2q4 Can it be simplified more?

**Math please check**

p= -3; q=2 2q(p+q)+3pq I got -22

**Math please check my work**

I see that now! Thank you!

**Math please check my work**

Where did I go wrong? I did this: 16(3--2) -8 + -8 16(5) + -16 80-16= 64 Thanks for your help.

**Math please check my work**

I forgot to put that x=4 and y=-2

**Math please check my work**

4x(3-y) - 2x + xy I got 64. Is that right?

**math**

A prize of $100, $200, $500, or $1000 will be randomly awarded to a game show contestant, with the probabilities of winning each prize shown in the table below. What is the expected value of the prize that will be awarded?

**Physical Education**

Awesome thanks "hey"

**Tech**

1.B Hurricanes earthquakes volcanoes 2. D. Action button 3. A. Cite a source Trust me 100% 3/3 I pass it !

**Natural Disasters**

1. B hurricanes earthquakes volcanoes 2. D action button 3. A cite a source 100% trust me

**Math**

True of false A broken scale can make changes in data appear less they than they actually are. If false, explain why. I know the answer is false because it is in my book, but I don't understand why.

**Physical Science**

I put that the kinetic energy increases, but am I missing something? Is that the whole answer?

**Physical Science**

What happens to the kinetic energy of a snowball as it rolls across the lawn and gains mass?

**Science/math**

Newtons second law of motion states that F =MA Force equals mass multiplied by acceleration. Mass is the constant. It does not change. What is the independent and dependent variable? I put force is independent and acceleration is dependent. Is that right?

**Math-Sorry I had a mistake in the first problem.**

Please check my work: Label the dependent and independent variable. 1. Time spent studying and Score on a test 2. If a scientist conducts an experiment to test the theory that a vitamin could extend a person's life expectancy. What are the dependent and independent ...

**Msth**

Please check my work: Label the dependent and independent vstiablr. 1. Time spent studying and Score on a test 2. If a scientist conducts an experiment to test the theory that a vitamin could extend a person's life expectancy. What are the dependent and independent ...

**Study Skills Practice**

1. B 2.d 3. A 100% correct

**Mental & Emotional Health**

1. true 2. time magement 3. true 100% correct these are the correct answers 3/3 100%

**Math**

Okay, thank you.

**Math**

How did you get that 1 cubic centimeter = 0.0610237 cubic inch ?

**Math**

Convert 630 cubic centimeters to cubic inches. I know that 1 inch = 2.54cm I tried 630/2.54 but I didn't get the answer in my book, which is 38.44. What am I doing wrong please?

**Tech**

1.B hurricane, earthquakes, volcanoes. 2.d action button 3. A cite a source Here are the correct answers. Trust me I got a 100% 3/3 100%

**Tech**

1.which of the following choice names are three natural disasters 1. B hurricanes earthquakes and volcanoes 2. D action button 3. A cite a source Here are the real answers first.trust me you will past the test! 100%! I got a 100%

**Language arts**

Yea thanks I got 100% correct

**Math**

That's what I did and I got .45. I was just doubting myself because I thought I had to set it up differently. It seemed too easy. Thank you.

**Math**

A basketball player attempted 1789 free throws. He made 801 of of them. What is the probability that the player will make the next shot he attempts? Write the probability as a decimal rounded to the nearest hundredth.

**science**

1. B 2. A 3.b 4. A 5. D 100% correct I got 5/5

**Algebra 1**

What are the two quantities that should be measured to find the rate at which water flows out of a shower head? Explain how the rate can be determined. Thanks!

**Math**

1. B -9 2. C y^19 3. D w^ -6 4. B 1 5. C 5^3 ThESe are a 100% correct True me will pass it.

**Science PLEASE HELP**

Okay, so yes a mixture can be made up of only elements. Why? Because mixtures can be made up of compounds and/or elements. Right?

**Science PLEASE HELP**

Could a mixture be made up of only elements and no compounds? Explain why or why not.

**Science**

Could a mixture be made up of only elements and no compounds? Explain why or why not.

**Math**

See what 12 and 9 go into (3) 3 goes into 12 4 times 3 goes into 9 3 times take the biggest number and times both of them by that number. 9x4 = 36 12x4 = 48 Take the number 3 goes into and add that number to 9:15am Glad i could help xx

**algebra**

If a=2 what is -a^2? -4 or 4? Why?

**Algebra**

ten-pin bowling ball has a volume of about 5274 cm3. A candlepin (8) bowling ball has a volume of about 48 in3. About how much greater is the volume of a ten-pin bowling ball than the volume of a candlepin bowling ball?

**Chemistry**

Lead has a density of 11 g/ml. Mercury has a density of 13.6 g/ml. How much more volume would 1 pound of lead occupy the one pound of mercury?

**statistics**

The cholesterol levels of adult American women has a mound-shaped and symmetric distribution with a mean of 188mg/dL and a standard deviation of 24 mg/dL. In what interval would you expect most American women’s cholesterol levels to be? Explain.

**physics**

Light from the Sun reaches Earth in 8.3 min. The speed of light is 3.00 x 10^8 m/s. How far is Earth from the Sun?

**science**

Study skills 1. A maitaining a postive attitude 2. D trying studying at the libary instead of at home 3. C look at headings and subheadings of the lesson to get a idea of what the lesson is about 4. B questing keeps your brain actively trying to find the answers while you are ...

**Health**

1. C 2. C 3. A 4. A and c 5. C 6. B 7. D 8. A 9.a 10.d 11.true 12. C 13. True 14. A 15. C 8, 16 These are a 100% correct TRUST ME WILL PASS IT!

**Chemistry**

If 5ml of 10M HCl was added to 1 litre of 0.4M 3-(N-morpholino) propane sulfonic acid what would be the resulting pH?

**Health**

1. C 2. C 3. True 4. A and c 5. C 6. B 7. D 8. A 9. A 10. D 11. True 12. C 13. True 14.a 15. C 8,16 100% correct I pass it

**Math**

88

**English 10**

Correct :) 100%

**Health and physical education**

1. C devolopment of ovaries in girls and testes in boys. 2. C hormonal changes 3. True 4. A and d 5. C your friends have recently started smoking 6.C Action plan 7. D continue searching for a reliable resources on the topic 8. A continuum 9. A physical health 10. D isolating ...

**Math**

Internal rate of return What is the internal rate of return for the following project. An initial outlay of $9500 resulting in a single cash inflow of $16,281 in 7 years. Internal rate of return for the project is ___%

**Chemistry**

What is the total internal energy change (∆E), in J, of a system that releases 202.90 J of heat and absorbs 315.7 J of work from the surroundings?

**Civics ASAP PLZ =:)**

I had this question on a test of mine. I hope this is correct! Thx

**Geometry**

Find the approximate surface-area-to-volume ratio of a bowling ball with a radius of 5 inches. A. 0.6 B. 0.67 C. 1.67 D. 25

**math**

Yay! Thank you so much. Very much helps! :D

**MATH**

Awesome thanks so much!

**Math Help**

With the given information below, write the standard form equation for the parabola. 1.) Vertex: (-1,2) Focus(-1,0) 2.) Vertex: (-2,1) Directrix x=1

**Physics**

A weather balloon is released at an altitude of 500m. The force of gravity on the balloon is 21.1n. The lift force provided by the atmosphere is 18.7n. Which of the following is true about the balloon? a. The balloon rises at constant velocity. b. the net force on the balloon...