Nikhil

15 Questions
52 Answers

0

141

3

+149

Physics Help

I drew fbd, and I thought that the vertical component of the red rope is the only thing pulling up (against gravity) because the horizontal component is, well, horizontal and the other line is also horizontal. B/c is equal to gravity, value is 1.25*9.81 read more ..

Nikhil Mar 1, 2023

0

567

2

+149

Really need help with these :(

A 100-foot rope is cut into three pieces. The first piece is three times as long as the second, and the third piece is 20 feet shorter than the second. How many feet long is the shortest piece?

A cowboy agreed to work for one year read more ..

MooMooooMooM ●●

Nikhil Jan 16, 2021

0

896

1

+149

I REALLY NEED HELP (3 problems)

When the proper fraction is written as a repeating decimal, the sum of the first 40 digits to the right of the decimal point is 236. What is N?
When 1/148 is written as a repeating decimal, what is the 2016 digit to the right of read more ..

Nikhil Oct 30, 2020

0

533

1

+149

PLEASE I REALLY NEED HELP

N=1991*1993*1995*1997*1999 What is the sum of the hundreds, tens and units digits of N?

Find the smallest positive multiple of 21 that has no digit larger than 1. read more ..

Nikhil Oct 17, 2020

0

561

1

+149

4 Challenge Questions

What is the remainder when 2013^2013 is divided by 13?

What is the remainder when 17^77 is divided by 35?
read more ..

Nikhil Oct 15, 2020

0

539

1

+149

PLEASE QUICKLY!!!

What is the smallest positive integer n! such that the rightmost three digits of n! and (n+1)! are the same?

Nikhil Oct 15, 2020

0

588

3

+149

CAN U SOLVE?

How many five-digit numbers of the form are divisible by 72?

Nikhil Oct 9, 2020

0

579

2

+149

CHALLENGE PROBLEM

A school bought many boxes of 100 candies each. The teachers opened all the boxes and gave 14 candies to each student, with 2 candies leftover at the end. The receipt shows the school bought 10# boxes of candies where the units digit, represented by read more ..

Nikhil Oct 7, 2020

-1

717

5

+149

PLEASE I NEED HELP QUICK!

Problem 1. One digit of 970405 can be changed to make the result divisible by 225. What is the six-digit number after the modification?

Problem 2. For each positive integer n, let S(n) denote the sum of the digits of read more ..

●●●●●

Nikhil Oct 7, 2020

+1

524

1

+149

HELLPPPP 2 PROBLEMS! NEED ANSWERS QUICK!

Problem 1. One digit of 970405 can be changed to make the result divisible by 225. What is the six-digit number after the modification?

Problem 2. For each positive integer n, let S(n) denote the sum of the digits of read more ..

Nikhil Oct 7, 2020

0

703

2

+149

Can you solve this???

20! has 19 digits, the last 18 of which are 432902008176640000. What is the first digit?

Nikhil Oct 3, 2020

0

539

4

+149

Challenge problem

N is a four-digit positive integer. Dividing N by 9, the remainder is 5. Dividing n by 7, the remainder is 3. Dividing n by 5, the remainder is 1. What is the smallest possible value of N?

Nikhil Oct 3, 2020

0

512

1

+149

HELP ME

The zoo transferred 131 birds to the safari park over the course of many days.
The zookeeper planned to send the same number of birds each day, except that there might be fewer on the last day, when he would send whatever was left. However, he mistakenly read more ..

Nikhil Oct 3, 2020

0

488

1

+149

HELPPPPP

N is a four-digit positive integer. Dividing N by , 9 the remainder is 5. Dividing N by 7, the remainder is 3. Dividing N by 5, the remainder is 1. What is the smallest possible value of N?

Nikhil Oct 3, 2020

+149

0

Area = 1/2 * base * height Since we know the area of the triangle (we can use Heron's formula to find it), and we know the length of the base, we can solve for the height: Area = 1/2 * AC * height height = 2 * Area / AC Plugging in the values we know, we get: s = (15 + 20 + 20) / 2 = 27.5 (semiperimeter) Area = sqrt(s(s-15)(s-20)(s-20)) = 150 height = 2 * 150 / 20 = 15 Therefore, the length of the shortest altitude in this triangle is 15.

NikhilMay 1, 2023

+149

0

w=125000+i * ({2993}/{16})

NikhilMay 1, 2023

+149

0

The inverse of a function is a function that undoes another function. for example the inverse of f(x) = x-3 is f^-1(x) = x+3.

NikhilMay 1, 2023

+149

0

There are two real solutions: (1/26^(2/3)) + 26^(2/3), and 26^(2/3)- (1/26^(2/3))
Heop this helps!

NikhilMar 13, 2023

+149

0

I answered this question already here: https://web2.0calc.com/questions/counting_53870

NikhilMar 7, 2023

+149

0

If you want helpw tih your homework, you may post one or two problems at a time. This is a blatant attempt at just getting homework answers, which is not what this website is for. Before asking for help at least try the problems first.

NikhilMar 6, 2023

+149

+1

Thanks for the help, I eventually got the question.

If you were wondering, here is the solution:

Screenshot-2023-03-06-1-59-41-PM

Screenshot-2023-03-06-1-59-56-PM

thanks!

NikhilMar 6, 2023

+149

0

Graphing this equation we see that the x intercept, or time when it hits the ground is 5 at 5 seconds. The maximum height it reaches is at 2.5 seconds, 100 feet up in the air. As said in the question, they were launched from the ground so the y intercept is 0. (this is also shown in the equation, no c term)

Hope this helps!

NikhilMar 6, 2023

+149

0

How many boxes are there?

NikhilMar 6, 2023

+149

0

Lets say we have 10 people on the team. Because the probabilities of choosing a sophomore or a freshman are the same, that means that they both have a 50/50 chance and that there are the same amount of freshman and sophomores on the team. Therefore the fraction of the swim team that are sophomores are 1/2.

Hope this Helps!

NikhilMar 6, 2023

+149

0

this is a simple system of equations. we will call the distance from a to b x, and c to d y. We have the x = y - 3004, and that x+y = 7866. solving the second equation with substituion gives y - 3004 + y = 7866. Solve for y and you get y = 5435.

Hope this helps!

NikhilMar 6, 2023

+149

0

If we have a 4x4 grid and can place 1 counter in each square with 2 counters per square, we have that the each row can have 8 different arrangments for the counters. this applies to each of the 4 rows, so you hvae 8*8*8*8 possibilities, which is 4096.
If we are placing 3 counters in each square, we can have 4 possibilities for each row, which is 4^4 or 256 possibilities.
Very sorry I couldn't upload images, webcalc does not let me for some weird reason but I use mathigon to visualise this, so thanks to Melody for sharing it.
Hope This Helps!

NikhilMar 6, 2023