Complete Question
A juggler tosses a bowling pin in the air with an initial velocity of 18 ft per second. It leaves his hand when it is five feet from the ground and he catches it when it is four feet from the ground,How long is the ball in the air?
Answer:
Step-by-step explanation:
From the question we are told that
Initial velocity 
Initial Height 
Final Height 
Generally the Newtons equation for motion is mathematically given by
Where
And
Therefore
Generally the equation for Time is mathematically Given as
Therefore the time spent on air by the ball is
Any singular matrix (a matrix with zero determinant) has no inverse.
It is similar to the denominator and the numerator
It is called evaluating expression. In order to find the value of an algebraic expression you need to substitute a number for each variable and perform the arithmetic operations and the letters can stand for the numbers and it is called evaluating the expression.
Answer: b. 6(x + 4)
Step-by-step explanation:
The given word phrase = the product 4 more than x and 6
where , 4 more than x is equivalent to 
Therefore the algebraic expression for the given word phase "the product 4 more than x and 6"
=
Hence b. is the right option.
The algebraic expression for the given word phase is 
