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Math and Arithmetic

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Rosetta Pollich

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2y ago
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Cards in this guide (14)
How many hours does an Electrician work

Most electricians work for a standard 35-40 hours in a week. However, once established, being an electrician is quite lucrative (it certainly is in Australia) and many have their own assistants and / or employees and can afford to spend a little more time off.

On a trip to Italy Cheyne rented a car to tour the country As he turned onto the highway he noticed that the speed limit was 95 kmh How fast can Cheyne drive in mph

Cheyne can drive 59 mph.

What is campaigning

camaigning is when you work to become a prime minister or someone like that. you put out posters and brochures to let people know that you are running or that why you want to represent their country.

Calcium chloride is often used to de-ice roads in the winter What volume would 15.7 g calcium chloride occupy

6.28cm3

What is the specific heat of an unknown substance if 2000 J of energy are required to raise the temperature of 4 grams of the substance 5 degrees Celsius

q = m x C x Δt, where q is amt of heat gained or lost, C is specific heat capacity, and Δt is change in temperature.

Known:

q = 2000J

m = 4g

Δt = 5oC

Equation:

C = q/mΔt

Solution:

C = 2000J/4g5oC = 2000J/20goC = 100J/goC

Express this amount in dozens Use decimal form 7.5 cupcakes

6.25 (:

Mary Lou baked 36 cupcakes for the bake sale if 75 percent of them had chocolate frosting how many cupcakes had chocolate frosting

27 ;) x

How many significant digits are in the number 85000

Two

A 050g ball of aluminum foil absorbs 1.42j heat when it is heated 31.6c what is the specific heat of aluminum foil

0.90 J/g°c

How many significant digits are in 1.076000

This number has seven significant digits.

How many significant digits in the number 456

3 significant figures.

The speed limit is posted as 35 kmhr. What if your speedometer reads that you are going 40 mileshr. Are you speeding

Yes. You are travelling at just over 64 kilometres per hour.

What type of balance is illustrated here Asymmetrical balance Symmetrical balance Radial balance

SYMMERTRICAL BALANCE

What Express this amount in dozens. (Use decimal form.) 75 pies

It is 6.25 dozen.

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