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LenaWriter [7]
3 years ago
11

What is the realationship between the area of the scales ⚖️ used in pictures ?

Mathematics
1 answer:
dlinn [17]3 years ago
3 0
<h2>Explanation:</h2>

As I understand, you need to know the relationship between the area of similar figures. Two shapes are similar if we can turn one into the other by moving, rotating, flipping, or scaling, so this means we can make one shape bigger or smaller.

From math, if we call k the scaling factor, then the area of one figure (A_{1}) divided by the area of another similar figure (A_{2}) will be equal to the scaling factor squared. In other words:

\frac{A_{1}}{A_{2}}=k^2

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Alguien me puede explicar los binomios en matematica, porfavor :)
Keith_Richards [23]

Answer: SEE EXPLANATION (en ingles)

Step-by-step explanation:

A binomial is an algebraic expression of the sum or the difference of two terms.  

En espanol: Un binomio es una expresión algebraica de la suma o la diferencia de dos términos.

7 0
3 years ago
If you hike three miles every 5 minutes, how far are you going in 1 minute?
V125BC [204]

Answer:

0.6 miles per minute

Step-by-step explanation:

3/5 = 0.6/1 = 0.6

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3 years ago
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Factor completely -5x 2 y + 10xy - 15xy 2
victus00 [196]

-5x^2 y + 10xy - 15xy^2

= -5xy(x - 2 + 3y)

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3 years ago
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Aliyah had some candy to give to her for children. She first took 10 pieces for herself and then evenly divided the rest of man
Vladimir [108]
How many children did she have?
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3 years ago
A three inch diameter pulley on an electric motor that runs at 1800
Bezzdna [24]

Answer:

a) 3 inch pulley: 11,309.7 radians/min

6) 6 inch pulley: 5654.7 radians/min

b) 900 RPM (revolutions per minute)

Step-by-step explanation:

Hi!

When a pulley wirh radius R rotantes an angle θ, the arc length travelled by a point on its rim is Rθ.  Then the tangential speed V is related to angular speed  ω as:

V=R\omega

When you connect two pulleys with a belt, if the belt doesn't slip, each point of the belt has the same speed as each point in the rim of both pulleys: Then, both pulleys have the same tangential speed:

\omega_1 R_1 = \omega_2 R_2\\

\omega_2 = \omega_1 \frac{R_1}{R_2} =1800RPM* \frac{3}{6}= 900RPM

We need to convert RPM to radias per minute. One revolution is 2π radians, then:

\omega_1 = 1800*2\pi \frac{radians}{min} = 11,309.7\frac{radians}{min}

\omega_2 = 5654.7 \frac{radians}{min}

The saw rotates with the same angular speed as the 6 inch pulley: 900RPM

3 0
3 years ago
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