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3 years ago

13

The diameter of a small gear is 16cm. This is 2.5cm more than 1/4 of the diameter of a larger gear. What is the diameter of a la

rger gear? round to the nearest centimeter.
Choices: 54cm, 64cm, 44cm, and 74cm.

1 answer:

gogolik [260]3 years ago

8 0

(16-2.5) : 1/4 = 13.5 · 4 = 54 cm

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What is the slope of a line that is perpendicular to 3x+2y=14

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Answer:

2/3

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

In this question:

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So $a = 0.8, b = 6, c = -15200$

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3 years ago

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Mumz [18]

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Please consider the attached file.

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