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4 years ago

A model car is 29 cm in length. How many inches long is it?

Physics

2 answers:

Delvig [45]4 years ago

7 0

1 cm = 0.39 in.

29 cm = 0.39 * 29

29 cm = 11.41 in.

Arada [10]4 years ago

6 0

If you want to convert 29cm to inches each 1 centimeter is 0.393701 inches so to do that you take 29cm times 0.393701 which equals 11.4173

ANSWER IS 11.4173 INCHES

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Mashcka [7]

Explanation:

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3 years ago

An inner city revitalization zone is a rectangle that is twice as long as it is wide. The width of the region is growing at a ra

lukranit [14]

Answer:

$\frac{dA}{dt} = 28800 \ m^2/year$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Geometry

Area of a Rectangle: A = lw

Algebra I

Exponential Property: $w^n \cdot w^m = w^{n + m}$

Calculus

Derivatives

Differentiating with respect to time

Basic Power Rule:

f(x) = cxⁿ
f’(x) = c·nxⁿ⁻¹

Explanation:

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Step 2: Rewrite Equation

Substitute in l: A = (2w)w
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Step 3: Differentiate

Differentiate the new area formula with respect to time.

Differentiate [Basic Power Rule]: $\frac{dA}{dt} = 2 \cdot 2w^{2-1}\frac{dw}{dt}$
Simplify: $\frac{dA}{dt} = 4w\frac{dw}{dt}$

Step 4: Find Rate

Use defined variables

Substitute: $\frac{dA}{dt} = 4(300 \ m)(24 \ m/year)$
Multiply: $\frac{dA}{dt} = (1200 \ m)(24 \ m/year)$
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3 years ago

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Ulleksa [173]

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4 years ago