Purchase Solution

powers of 7

Not what you're looking for?

Ask Custom Question

If you calculate 7^90 on a TI-83+ calculator, you will get 1.145047759x10^76. This is misleading since it implies that the digit in the ones place is zero. Explore powers of seven and use what you learn to determine what digit is in the ones place in the expansion of 7^90.

Note, this needs to be done without using a calculator more powerful than a TI-83+.

Purchase this Solution
Solution Summary

The powers of 7 are depicted.

Solution Preview

7^1 = 7
7^2 = 49
7^3 = 343
7^4 = 2401

7^5 = 16807
7^6 = 117649
7^7 = 823543
7^8 = 5764801

We can see ...

Purchase this Solution
Free BrainMass Quizzes
Know Your Linear Equations

Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.

Solving quadratic inequalities

This quiz test you on how well you are familiar with solving quadratic inequalities.

Exponential Expressions

In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.

Multiplying Complex Numbers

This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.

Probability Quiz

Some questions on probability

View More Free Quizzes
Related BrainMass Solutions

  • Variables, Terms and Powers

    Variables, terms and powers are investigated. The difference between -7^2 and (-7)^2 are determined.

  • Bernoulli Polynomials

    coefficient of tn Conclude 7) Consider Equating powers of t 8) Define the Euler Numbers: Consider Equating powers of t we get 9) Consider Equating powers of

  • Putting Prefixes in Order

    kilo- All these prefixes correspond to powers of 10. For example, Tera is 10 to the power of 10. Terabyte of information means 10,000,000,000 = 10^10 bytes of information.

  • Power Absorbed by Variable Resistor

    33004 Power Absorbed by Variable Resistor A circuit connected in series contains a voltage source of 20 V, a 5 ohm resistor, and a variable resistor, R. Determine the powers absorbed by the variable resistor ranging from 0 to 20 ohms.

  • Powers of the executive, legislative, and judicial branches

    Checks and balances Through separation of powers the various branches of government can check and balance the powers of the other branches.

  • Bureau of Arms Control

    I just need info to have 7 slides on it. Please see the attached file. This solution talks about the Bureau of Arms Control. It explores the powers of the agency and its reporting system.

  • Taylor Series Calculus

    (1/7!)x^7 + ...... + (-1)^n * 1/(2n + 1)!*x^(2n+1) + .......

  • Enumerated Powers and the Dred Scott Case

    Article I, section 8 of the U.S. Constitution grants powers to Congress. These enumerated powers detail the authorities of Congress. Simply, the enumerated powers are the specific powers that Congress maintains.

  • Polynomial division

    (Dividing each by 3) Powers of 'c': We have c^7 in NUM. and c^3 in DENOM. c^7 divided by c^3 = c^7/c^3 = c^(7-3) = c^4. Powers of 'w': We have w^-4 in NUM. and w^6 in DENOM. w^-4 divided by w^6 = w^-4/w^6 = w^(-7-6) = w^-10.

View More Related Solutions