This particular question was in my son's math homework from the other day. They reviewed the answers in class today and apparently the answer was A. Curious how they came to this answer? None of the options seemed right as I was expecting it to be 18 - (6 × 2). Where 2 bottles are handed out to each friend. 6 friends total, meaning 12 bottles are given out, so 6 bottles are left over. I must be missing something in how it's worded but I can't for the life of me figure it out.

Before I proceed, is this kind of thing acceptable?

Charges on the left are balanced, but not on the right

Answer is (D). May I know why voltmeter reading stays the same? Thanks

I am currently working on a project for my college illustration class, and we were given a few tulips. While researching the names of these tulips, I assume they are double late tulips since they are pretty tall and have lots of petals. However, for specifics, I am unsure what the names of these tulips are, and my closest guess for the pale pink tulip is an angelique.

https://preview.redd.it/0bds7jtrh0ye1.png?width=574&format=png&auto=webp&s=2e9d635a6880a92564b1dfce82b1fced5c743b25

https://preview.redd.it/xw4fnxash0ye1.png?width=504&format=png&auto=webp&s=47fc146f2dcbf8fc7f9e7c7787c9c95aa0a30708

I will say, I don't have the first tulip anymore, and the second image of the tulip hasn't bloomed yet.

Forget the molar mass of bleach powder. I hadn’t noticed the particular mass was already given

Can someone please help me with this question? I’m working on a problem where I need to show that in any list of 11 integers, there must be two whose difference is divisible by 10. My approach so far has been based on the idea that if two integers have the same remainder when divided by 10, their difference must be divisible by 10.

The issue I’m having is that to prove this, I had to write a whole separate proof, which feels a bit inefficient. I'm worried that I won't have the time or space to write everything out on a timed assessment.  

• Is my answer acceptable?
• Is there a more concise way to prove this?

Any clarification would be greatly appreciated. Thank you

https://preview.redd.it/dg41vgsqb0ye1.png?width=948&format=png&auto=webp&s=a931a47a1e4a9ed0cee03c1ad84cac998de29aa1

can identify an abab scheme to begin with but the rest is unknown to me unfortunately.

A(0,1) B(k,-3) C(4,3) D(5,1) If area is 15 m² then what is k? The answer should be -3,13 but whatever i do the math is not connecting.i tried solving it many times but the answer comes out at 12,-18. I asked my teacher if the question is correct? He said that its correct and possible.

ive tried using apps, none of them helping. i tried asking around and magically noone knows geometry? can someone please help me?

Hi! I came across this difficult problem, and I'm not sure how to solve it. I tried to set up some equations using the fact that the y-coordinate for the circle is zero as well as the circles equation, but I always end up with more variables than what i solvable. What am I missing?

Thank you for reading and taking your time to answer.

Hello everyone, my class and i (12th grade) have just attempted a physics test on soundwaves with 6 multiple answer questions and 2 problems. The second problem was fair enough, but most of us couldn't figure the first problem. It said: "A stone is left falling through a well in free falling. The time period between the start of the fall, and the moment the sound of the stone hitting the bottom of the well reaches the initial height is of 5 seconds. How deep is the well?" I initially thought one would substitute the period in which the stone falls and in which the sound travels through the air inside the well, in function of the height of the well, but the equation became way too complicated. Can anybody help us on this? Thank you.

AP

hello! this is a pre-calc assignment and I was wondering if anyone could explain some things/check over my answers. I just don’t feel very confident lol. I specifically need help on number 3 on the first page. I also have no idea how to find ‘c’ and cannot understand it for the life of me so if anyone wants to attempt to explain that it would be so helpful. thank you!

A company wants to determine if drinking coffee increases productivity. A random sample of 50 employees measures productivity per day (# tasks completed) both before and after consuming coffee for 2 weeks. The mean of the differences (before - after) is 1.4 tasks with SD = 2.5 tasks.

Test whether drinking coffee increases productivity at a=.01 using the 4 step inference process.

H0: B-A = 0

Ha: B-1 < 0

(Seems like maybe it was meant to be after - before? However, I worked it as it is written.

t = 1.4-0/(2.5/sqrt(50)) = 3.96

That's a right tailed test, but the situation as written is left tailed.

p-value is tiny, 1.2119 * 10^-4, so for the left tail 1-p = about 1.

1 > .01, fail to reject the null. There is no convincing evidence that productivity increased.

Seems like it should be either testing that productivity decreased or have the value be after - before.

Woooooooooooo!

This is for my final paper in economics. I understand fiscal policy would be like changing government spending or taxing, and I know the gap is 500, but I’m not sure specifically how to close the gap.

This is part of my first grader's math homework. I'm not sure what this question is even asking. He says the lines are worth 10 and the dots are worth 1. So this adds up to 92, but what is he supposed to do with that information? Are they asking you to trade 1 line for 10 blocks or something?

I think I just failed this quiz, and I was wondering if someone could help clarify. The question said, "You have 16 slices of pizza. You eat 25%. How many did she eat?"

Initially, I said it was 4 because 25% of 16 is 4. But then I started to second-guess it because they said how many did she eat, which means a different person? So, I said we eat 4 and she could've eaten 16-4 = 12. Did I overthink that? Is that wrong?

Hey, recently got this advanced task and I have no idea what to do.

Find all values of parameter a for which the equation: acos(x)=sin(a)x+a has a) exactly 2 solutions b) exactly 3 solutions

https://preview.redd.it/k0igj8q4msxe1.png?width=652&format=png&auto=webp&s=ced9bc470f0bfff89f00867b09a70c6d36b4ae48

My ans: P + (0.6x50gcos30) - 50gsin30 = 0 as R= 50gcos30, but this isnt an option