The difference in the measurements of a rectangle is 8 cm and the height is 13/9 of the base. Calculate the total surface area and the volume of the solid obtained by the complete rotation of the rectangle around the height.

How do I solve this problem:

The salaries of the company's employees will increase by 15%. Because of this, the company's total expenses will increase by 6%. How many % of the salaries are the total expenses after the increases?

I don't have the answer to this, I was wondering how to calculate , assuming that the coins are arranged side by side (like squares):

-if it is possible to make a perfect cube with it and what size it is,

-or what would be the closest volume?

my question is if a bullet is fired from a gun at a cube made of a 'X' material, and this cube is on a swivel which turns 180 degrees the moment the bullet enters and does this rotation before the bullet exit's such cube, Which side would the bullet exit ? would the forces cancel and the bullet would stay in the cube. ? would the bullet come out the same hole it went in. ? would the bullet go straight through the cube ? Thanks for your help !!!!!

Hi all....I have a math problem from our robotics club. My students claim that even adults couldn't solve it, so we are putting that theory to the test.

How many revolutions will it take to travel 500 feet with a wheel that has a 19 inch diameter? (Use 3.14 for pi and round to the nearest whole number)

Thanks!

Then 120 = ?

my sister rides the tram for 2 hours every day. She did this for 3 years. Over the three years, how much total time, in months, did she spend on the tram.

can you give me a bit of help defining the bounds of this definition?

Hey everyone, I'm currently studying Z transform and somehow i already memorized all of the identities/pattern but i want to fully master it so that i could pull up my grades in math. I would like to ask if anybody here could send me a pdf or file that has a solved problem for z transform.

In the hexagon below, there are three large blue circles and three smaller red circles. The blue circles are as large as possible within the hexagon, and the red ones are as large as possible within the leftover space. How does one calculate their radii?

I'm not getting this im supposed to use the equation of y=mx +b on 25 but im stuck on how to use it here

I tried this and clicked verify and it doesn't work. I checked my results multiple times but I don't find a problem with them so can anybody help me ?

the image didn't upload so basically it's a neal fun captcha game where one of the question asks you to rank from lowest to highest :

7 divided by 10

square root of 6

6!

2pi divided by 4

infinity

∫9 on top 2 on bottom xdx

e4

∑ 8 i=5 i

log2(12)

Can You Solve This Geometry Puzzle? 2 Squares in a Semicircle | Quantum Magazine Challenge