If you have a graphing calculaator enter the matrix then on the outside of it hit the ^ button and put -1
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Answer:
Step-by-step explanation:
The vertical displacement function is , where is measured in meters and in seconds. Ball hits the ground when . That is:
Whose roots can be found by using the General Formula for Second-Order Polynomials:
Solutions of this polynomial are:
Only the first root is physically consistent.
Answer:
140
Step-by-step explanation:
560. 1
____. ÷. ______
1. 4
Cross out the numbers that are divisible
560/4 = 140
See attached picture for answer:
The formula for area of a circle is:
A=(pi)r^2
If diameter is 5.5, divide by 2 to find radius is 2.75. 2.75^2 is 7.5625 then multiplied by 3.14 (pi) is 23.746.
Depending on how you round, about 23.7 square feet were painted.