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tangare [24]
3 years ago
12

√7-x+5=x help please

Mathematics
1 answer:
KATRIN_1 [288]3 years ago
3 0
X-5=\sqrt{7-x}

Squaring and subtracting 7-x, we get:

x^2-9x+18=0

Factoring, we have:

(x-6)(x-3)=0
So x can be 6 or 3.
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As X' is the reflected point of X(0,3) , so the x co ordinate of X' = 0+8 =8 and here y co ordinate remains same.

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Answer:

The experimental probability of rolling an odd number is 60%, which is 10% more than the theoretical probability.

Step-by-step explanation:

The complete question is:

Type the correct answer in each box. Use numerals instead of words. If necessary, use/ for the fraction bar(s).

A special 8-sided die is marked with the numbers 1 to 8. It is rolled 20 times with these outcomes.

3, 4, 5, 2, 7, 1, 3, 7, 2, 6, 2, 1, 7, 3, 6, 1, 8, 3, 5, 6

The experimental probability of rolling an odd number is _%, which is _% more than the theoretical probability.

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The possible outcomes of rolling an 8-sided die are:

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The odd numbers are:

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The theoretical probability of rolling an odd number is:

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Compute the experimental probability of rolling an odd number as follows:

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