The expression -x^2 + 70x -600 represents a companys profit for selling x items. For which number of items sold is the companys
1 answer:
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Answer:
(A)6
Step-by-step explanation:
Given the quadratic expression:
We factorize:
Therefore, the missing number that will complete the factorization is 6.
For this question, you need to know that the average velocity of a 100m Olympic athlete is 10 m/s before you start solving the equation. The equation is K (energy in Jules) = 1/2 mv^2 (where m is the mass in kg and v the speed in meters per second).
The correct answer is 4000J. To see how I got it, take a look at the attachment.
The correct answer is 4000J. To see how I got it, take a look at the attachment.