Enable contrast version

# Tutor profile: Rishi A.

Inactive
Rishi A.
Math/Science Tutor (K-12)
Tutor Satisfaction Guarantee

## Questions

### Subject:Pre-Calculus

TutorMe
Question:

What are two trigonometric identities for cot (angle)?

Inactive
Rishi A.

cot(angle) = cos(angle)/sin(angle) and cot(angle) = 1/tan(angle)

### Subject:Chemistry

TutorMe
Question:

Stoichiometry Problem: If 618 grams of NH3 and excess oxygen gas react to produce nitrogen oxide and water, how many moles of nitrogen oxide are formed?

Inactive
Rishi A.

First step: Write out a balanced equation 2 NH3 (aq) + 3 O2 (g) --> 3 H2O (l) + N2O3 (g) Second Step: Take note of what you are starting with and what your are finding In this question, we start out with 618 grams of NH3 and we need to find moles of N2O3 Third Step: Create a dimensional analysis table (cannot be displayed through typing) and solve for what you are finding Answer: 18.14 moles N2O3

### Subject:Algebra

TutorMe
Question:

Anna has 6 times as much money as Bob, however if Anna earns \$6 and Bob earns \$8, Anna will still have 3 times as much money as Bob will have. How much money do Anna and Bob have before and after earning the \$6 and \$8 respectively?

Inactive
Rishi A.

6x +6 = 3(x+8) x = 6 Anna \$: Before = \$36 After: \$42 Bob \$: Before = \$6 After = \$14

## Contact tutor

Send a message explaining your
needs and Rishi will reply soon.
Contact Rishi