If an arrow is shot straight upward on the moon with a velocity of 61 m/s, its height (in meters) aftert seconds is given by S(t) = 61t -0.83t2. What is the velocity of the arrow (in m/s) after 9 seconds? After how many seconds will the arrow hit the moon? With what velocity (in m/s) will the arrow hit the moon?
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
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