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2 years ago

14

Estimate 874,238 – 228,759 using front-end estimation. (help please!!)

1 answer:

Lynna [10]2 years ago

8 0

Answer:

if we estimate this number its going to be 700,000

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At a pizzeria, a medium pizza which has diameter of 12 inches sells for $6.00 and a large pizza which has a diameter of 16 inche

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We are comparing areas, so square of the linear dimension
Relative cost per unit area
12^2/6=24
16^2/10=256/10=25.6
Since 24<25.6, the 12" pizza is a better deal.

Note: we could compare exact area by calculating A=pi (d^2)/4, but since it is a relative comparison, the result will be the same, albeit more work.

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tigry1 [53]

Answer:

$x = \pm e^{-1}$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtract Property of Equality

<u>Algebra I</u>

Solving quadratics
Multiple roots

<u>Algebra II</u>

Logarithms
Euler's number e

Step-by-step explanation:

<u>Step 1: Define</u>

$\displaystyle ln(x^2) = -2$

<u>Step 2: Solve for </u><em><u>x</u></em>

Raise both sides by e: $e^{\displaystyle ln(x^2)} = e^{-2}$
Simplify equation: $x^2 = e^{-2}$
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common sense if there was in increase by only 8% that the only logial answer that would be the A- : $4444 when you multiply 8% of 55,555

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