Pre-Algebra

1)(6.0 × 10 to the 5th power) × (3.0 × 10 to the 4th power)

A) 18 × 10 to the 20th power.
B) 18 × 10 to the 9th power.
C) 1.8 × 10 to the 20th power.
D) 1.8 × 10 to the 9th power.

2)(5 × 10 to the -2 power) ÷ (2 × 10 to the 3rd power)

A) 2.5 × 10 to the -5 power.
B) 2.5 × 10 to the -1 power.
C) 2.5 × 10 to the 1st power.
D) 2.5 × 10 to the 2nd power.

3)(2.56 × 10 to the 6th power) × (3.56 × 10 to the 2nd power)

A) 9.1136×10 to the 12th power.
B) 91.136×10 to the 8th power.
C) 9.1136×10 to the 8th power.
D) 91.136×10 to the 12th power.

4) In a recent near, the population of California was about (2.52 × 10 to the 7th power) people. It's land area is about (4.05 × 10 to the 5th power) Km to the 2nd power. What has the average number of people per square kilometers?

A) 0.62 × 10 to the 5th power.
B) 6.2 × 10 to the 1st power.
C) 0.62 × 10 to the 14th power.
D) 6.2 × 10 to the 9th power.

  1. 👍 0
  2. 👎 0
  3. 👁 545
  1. A math tutor will be able to check your answers once you post them.

    1. 👍 0
    2. 👎 0
  2. 1. When multiplying, add the exponents:
    6*10^5 * 3*10^4 = 18*10^9.

    2.

    3. 2.56*10^6 * 3.56*10^2 = 9.1136*10^8.

    4. When dividing, subtract the exponent in the denominator from the
    exponent in the numerator:
    2.52*10^7/4.05*10^5 = 0.62*10^2 = 6.2*10^1.

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Algebra

    Standard form of (1.5*(10)6th power)/(2.5*10 -4th power)

    asked by Aditi on July 10, 2020
  2. Calculus

    Evaluate exactly the value of the integral from negative 1 to 0 of the product of the cube of quantity 2 times x to the 5th power plus 6 times x and 5 times x to the 4th power plus 3, dx. Your work must include the use of

    asked by J on April 20, 2019
  3. math help pls pls pls

    Choose the correct simplification of the expression the quantity a to the 2nd power over b to the 3rd power all raised to the 4th power. A. a to the 6th power over b to the 7th power B. b^12 C. a^8b^15 D. the quantity a to the 8th

    asked by Oscar on March 21, 2016
  4. physics

    The disk shaped head of a pin is 1.0 mm in diameter. Which of the following is the best estimate of the number of atoms in the layer of atoms on the top of the surface of the pinhead? 1. 10 to the 34th power 2. 10 to the 19th

    asked by Kailey on August 26, 2010
  5. math

    Simplify 4 to the 7th over 5 squared all raised to the 3rd power. 4 to the 10th over 5 to the 5th 4 to the 4th over 5 4 to the 21st over 5 to the 6th 12 to the 7th over 15 squared

    asked by davis on August 24, 2017
  1. civics

    Which power would give a president greater legislative power than the office currently has? A. power of a line-item veto B. power of executive privilege C. power to call a special session*** D. power to recommend legislation Can

    asked by eva on April 10, 2020
  2. algebra

    9.6*10 to the 7th power divided by 1.5 *10 negetive squared. i was working this problem out and i was thinking it would be 6.4*10 by the 5th power.

    asked by arlynne on December 6, 2014
  3. government

    the power that allows congress to take private property for such uses as an interstate highway system or a national park is a. the commerce power b. the power of eminent domain c. the borrowing power d. the power to tax a

    asked by jere on January 3, 2008
  4. math

    find the greatest common factor and simplify your answer. 4v to the 7th power y to the 9th power and 16v to the 6th power x to the 8th power y to the 5th power.

    asked by kim on April 28, 2011
  5. Math

    Write the following number in standard form (4X10 4th power)+(3X10 3rd power)+(2X10 2nd power)+(5X1)=

    asked by Joe on March 5, 2013
  6. algebra

    how do I evaluate 2x to the 4th power + 2 x to the 3rd power + x to the 2nd power when x + 7

    asked by Anonymous on October 18, 2012

You can view more similar questions or ask a new question.