UIL Calculator

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What is scientific notation?

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Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form. It is written as a product of a number (between 1 and 10) and a power of 10.

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How do you convert a number to scientific notation?

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To convert a number to scientific notation, move the decimal point in the number until only one non-zero digit remains to its left. Count the number of places you moved the decimal point; this will be the exponent of 10. If you moved the decimal to the left, the exponent is positive; if to the right, it is negative.

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What does the exponent in scientific notation indicate?

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The exponent in scientific notation indicates how many places to move the decimal point. A positive exponent means the number is greater than 1, while a negative exponent means the number is less than 1.

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The value is -9.83, since any number raised to the power of 0 is 1.

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How do you add numbers in scientific notation?

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To add numbers in scientific notation, they must have the same exponent. If they do not, convert one or both numbers to have the same exponent, then add the coefficients.

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What is the cosine function?

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The cosine function, denoted as cos, is a trigonometric function that relates the angle of a right triangle to the ratio of the length of the adjacent side to the hypotenuse.

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What is the process for solving a multi-step equation?

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To solve a multi-step equation, isolate the variable by performing inverse operations in the reverse order of operations (PEMDAS: Parentheses, Exponents, Multiplication and Division, Addition and Subtraction).

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