Katie and Tom are selling pens. Katie makes a dollar for every two pens she sells and has $5 that she made yesterday. Tom makes
$2 for every three pens he sells and he owes the teacher $4 from yesterday. After selling pens all day they have the same amount of money. Using the equation below, how many pens did they sell?
1 answer:
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Answer:
B
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [ a, b ] is
Here [ a, b ] = [ - 1, 6 ] and from the graph
f(b) = f(6) = 0
f(a) = f(- 1) = 0, thus
average rate of change = =
= 0
Answer: Height at which the wire is attached to the pole is 12 feet.
Explanation:
Since we have given that
Length of the wire = 20 feet
Let the height at which wire is attached to the pole be h
and distance along the ground from the bottom of the pole to the end of the wire be x+4
Now, it forms a right angle triangle so, we can apply "Pythagorus theorem".
But height cant be negative so, height will be 12 feet.
Hence, height at which the wire is attached to the pole is 12 feet.
