Multiple choice. You take a quiz with 6 multiple-choice questions. After you studied, you estimated that you would have about an
1 answer:
Answer:
.262144, or about 26%
Step-by-step explanation:
Use what people call the Multiplication Principle. If there are two independent events--the outcome of one does not affect the outcome of the other--multiply their probabilities to find the probability of both occurring.
The questions are independent -- answering one question does not affect the answer to any other question.
The chance of answering all 6 questions correctly is
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Hello!
To solve this, first perform the opposite operation for the last operation (on the left side) on both sides. The last operation of the left side is squaring. Therefore, square root both sides.
Please note that you must include ±. This is because the square root of 64 can be either positive or negative, as a square of either a positive or negative number is positive.
Now, add 9 to both sides.
There are 2 solutions from here. One comes from adding 8, and the other subtracting 8. Therefore, the two solutions are:
y = 9 + 8 = 17
y = 9 - 8 = 1
Therefore, your two solutions are 17 and 1.
Hope this helps!