Solve by completing the square 6x-x^2-7
1 answer:
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Answer:
159
Step-by-step explanation:
k (9) = (2 * ) - 3
= (2 * 81) - 3
= 162 - 3
= 159
Answer:
JK got 30 answers correct on a 50 item test.
Step-by-step explanation:
It is given that:
Total items on test = T = 50
Fraction of total items that were answered correctly = 3/5
We simply have to multiply the total number of questions by the fraction of correct answers.
So,
The correct answered number of items are:
Hence,
JK got 30 answers correct on a 50 item test.