NEED HELP ASAP 60 POINTS AND WILL MARK AS BRAINLIEST Alex, an eighth grader, and Eric, a seventh grader, need to determine who c
2 answers:
Answer:
Eric was closer to the state record.
Step-by-step explanation:
Consider the provided information.
Alex jumped 39.85 feet the eighth-grade record is 42.25 feet.
Let see how closer Alex jumped was.
Eric, a seventh grader, and he jumped 37 feet and "1" "1" /"4" inches. The seventh-grade record is 39 feet 3 inches.
First convert 37 feet and "1" "1" /"4" inches into feet.
Multiply both sides by 5/4.
That means total distance was 37+0.104167=37.104167 feet.
seventh-grade record is 39 feet 3 inches.
3 in = 0.25 foot
Therefore, the seventh grade record is 39+0.25=39.25 feet
2.145833 is smaller than 2.4
Hence, Eric was closer to the state record.
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Both functions decrease at (-1, 2)
<h3>How to determine the decreasing intervals of the function?</h3>The complete question is added as an attachment
The polynomial function f(x) is represented by the graph.
From the graph, the polynomial function decreases at (-2, 2)
The absolute function is given as;
f(x) = =5|x + 1| + 10
The vertex of the above function is
Vertex = (-1, 10)
Because a is negative (a= -5), the vertex is a maximum.
This means that the function decreases at (-1, ∞)
So, we have
(-2, 2) and (-1, ∞)
Combine both intervals
(-1, 2)
This means that both functions decrease at (-1, 2)
See attachment 2 for the number line that represents the interval where both functions are decreasing
Read more about function intervals at:
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