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barxatty [35]
3 years ago
11

A loaf of bread weighs about 1pound. Chose all of the metric measures that are less than 1pound. 1kg 0.5kg 500g 450g 100g

Mathematics
1 answer:
wel3 years ago
3 0

Answer:  E) 450g and F) 100g

Step-by-step explanation:

A pound is approximately <em>0.4535 kilogrammes</em>, so <em>453,5 grammes</em>. With this information, we can determine that answers E (450 grammes) and F ( 100 grammes) are the only correct ones.

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Drag the slider to 2 inches. How many centimeters are in 2 inches? There are centimeters in 2 inches.
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Need help with this math problem
elena-14-01-66 [18.8K]

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2 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

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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:

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

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3 0
3 years ago
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ycow [4]

Answer:

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Step-by-step explanation:

(x-9)(x+2)

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Add together

x^2 +2x-9x-18

Combine like terms

x^2 -7x-18

4 0
2 years ago
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