Answers
Answer:
c. -t² + 5t < 5
Step-by-step explanation:
The cyclist starts at an initial elevation of 0 at time t = 0
The cyclist's elevation again becomes 0 when the graph hits the t axis
To solve for when the cyclist reaches elevation of 0 after setting off we can set -t² + 5t = 0 and solve for t
-t² + 5t = 0
=> -t² = - 5t (move 5t to the right)
=> -t² = - 5 (divide both sides by -t)
=> t = 5 (multiply both sides by -1)
So the cyclist reaches an elevation of 0 again at t= 5
So the cyclist is above elevation 0 when
-t² + 5t < 5, t ≥ 0 (since we cannot have negative time)
Related Questions
its asking me 7th geade questions
Answers
Amy spent $21 on school supplies.
The correct answer is option C, $21.
To determine how much Amy spent on school supplies, we first need to calculate the fraction of her total money that was spent on school supplies. It is given that Amy spent 1/6 of her money on school supplies.
We are also given that Amy spent a total of $126 at the store. So, to find the amount spent on school supplies, we need to find 1/6 of $126.
To calculate 1/6 of a value, we can multiply the value by the fraction 1/6. In this case, we have:
(1/6) x $126 = $21
Therefore, Amy spent $21 on school supplies.
The correct answer is option C, $21. This means that out of the total $126 spent, $21 was allocated to school supplies.
To learn more about multiplication;
https://brainly.com/question/19634536
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