Math Problem Statement

GIve answers in standard form

1. The volume of a cube is given as 8.1 x 10^18 cm³. Find the side length of the cube, expressed in standard form. 2. The area of a square is 2.56×10^14 m². Find the side length of the square, expressed in standard form. 3. Simplify: ∛(1.728×10^-12).

Solution

PIL import Image import pytesseract

Load the uploaded image to extract text

image_path = "/mnt/data/17332458326278nyppohx.jpg" extracted_text = pytesseract.image_to_string(Image.open(image_path))

extracted_textHere are the questions extracted from the image:

  1. The volume of a cube is given as 8.1×1018cm38.1 \times 10^{18} \, \text{cm}^3. Find the side length of the cube, expressed in standard form.

  2. The area of a square is 2.56×1014m22.56 \times 10^{14} \, \text{m}^2. Find the side length of the square, expressed in standard form.

  3. Simplify: 1.728×10123\sqrt[3]{1.728 \times 10^{-12}}.

Solutions:


1. Side length of the cube:

The formula for the volume of a cube is: V=a3V = a^3 where aa is the side length. Rearranging: a=V3a = \sqrt[3]{V}

Substitute V=8.1×1018V = 8.1 \times 10^{18}: [ a = \sqrt[3]{8.1} \times \sqrt[3]{10^{18}} ]

8.132\sqrt[3]{8.1} \approx 2, and 10183=106\sqrt[3]{10^{18}} = 10^6.

a=2×106=2.0×106cm.a = 2 \times 10^6 = 2.0 \times 10^6 \, \text{cm}.


2. Side length of the square:

The formula for the area of a square is: A=a2A = a^2 where aa is the side length. Rearranging: a=Aa = \sqrt{A}

Substitute A=2.56×1014A = 2.56 \times 10^{14}: a=2.56×1014a = \sqrt{2.56} \times \sqrt{10^{14}}

2.56=1.6\sqrt{2.56} = 1.6, and 1014=107\sqrt{10^{14}} = 10^7.

a=1.6×107m.a = 1.6 \times 10^7 \, \text{m}.


3. Simplify 1.728×10123\sqrt[3]{1.728 \times 10^{-12}}:

[ \sqrt[3]{1.728 \times 10^{-12}} = \sqrt[3]{1.728} \times \sqrt[3]{10^{-12}} ]

1.7283=1.2\sqrt[3]{1.728} = 1.2, and 10123=104\sqrt[3]{10^{-12}} = 10^{-4}.

1.728×10123=1.2×104.\sqrt[3]{1.728 \times 10^{-12}} = 1.2 \times 10^{-4}.


Final Answers:

  1. 2.0×106cm2.0 \times 10^6 \, \text{cm}
  2. 1.6×107m1.6 \times 10^7 \, \text{m}
  3. 1.2×1041.2 \times 10^{-4}

Would you like further explanation or have questions?


Related Questions:

  1. What is the formula for finding the volume of other geometric shapes?
  2. How do you calculate cube roots manually or using a calculator?
  3. Can you describe the properties of standard form in mathematics?
  4. How would the answer change if the area of the square was 2.25×10122.25 \times 10^{12}?
  5. What is the significance of exponents in scientific notation?

Tip: When simplifying scientific notation, handle the coefficients and powers of ten separately to avoid confusion.

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Math Problem Analysis

Mathematical Concepts

Scientific notation
Cube roots
Square roots
Exponent rules

Formulas

Volume of a cube: V = a³, where a is the side length
Area of a square: A = a², where a is the side length
Cube root: ∛(a×10^b) = ∛a × ∛(10^b)

Theorems

Laws of exponents
Properties of roots

Suitable Grade Level

Grades 9-12