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Math and Arithmetic

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Jettie Ryan

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Cards in this guide (15)
What is a variable

Something that changes during an experiment. A variable is something that is bound to change and not constant

In a mathematical statement a variable is something which can take on different values; it is usually represented by a letter, though a word could be used. Examples include: x + 5 (x is a variable) area_rectangle = lw = length × width (l, w, length and width are all variables), area_circle = πr² = π × radius² (r and radius are both variables)
Variable means that something is liable to change, is not constant. For instance, weather is very variable in Britain. Our weather can change hourly, with rain, sun, etc.

How many meters are in 15 micrometers

15 micrometers = 1.5 × 10^-5 meters

How do you explain about the guidelines used for designing procedures

Explain about the guidelines used for designing procedures?

How many miles equals a km

1 km = 0.621371 miles

Is a diary an example of a primary source

yes, it is an example of a primary source.

A gallon of gasoline is 3.8liters a car takes about 20 gallon of gasoline how many liters is that

20 US gallons of gasoline equals about 75.708 liters.

How many centimeters are in 1 meter stick

1 meter = 100 centimeters

What is a primary source

A record that is made during or right after an event

What is 311.8 as a mixed number

0.8 = 8/10 = 4/5, so 311.8 = 311 and 4/5.

What is one advantage of using primary sources when doing research on an experiment

THey contain more details about the experiment

What prefix indicates the largest part of a unit

Nano-

Which of the following is SI unit of mass

The SI unit of mass is the kilogram.

A scientist studies how the temperature of a baseball affects how far it goes when hit by a bat. What will make this experiment more repeatable

C. Using the exact same kind of baseball each time .

You drove a car 88.0 kilometers . how many miles did you drive

88km = 54.68 miles

A scientist is studying the effects of sunlight on rose bushes. Which of the following is a testable question about this topic

Does more sunlight make rose bushes grow taller

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