How are negative exponents and positive exponents related ?
2 answers:
Negative or positive exponents are related by fractions.
For example, if we have a number that is raised to a negative exponent, we can write the number as the quotient between 1 and the same number raised to a positive exponent.
We have then:
Answer:
negative exponents and positive exponents are related by fractions:
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Answer:
The answer is below
Step-by-step explanation:
The standard form of the equation of an ellipse with major axis on the y axis is given as:
Where (h, k) is the center of the ellipse, (h, k ± a) is the major axis, (h ± b, k) is the minor axis, (h, k ± c) is the foci and c² = a² - b²
Since the minor axis is at (37,0) and (-37,0), hence k = 0, h = 0 and b = 37
Also, the foci is at (0,5) and (0, -5), therefore c = 5
Using c² = a² - b²:
5² = a² - 37²
a² = 37² + 5² = 1369 + 25
a² = 1394
Therefore the equation of the ellipse is:
Answer:
The correct option is 4.
Step-by-step explanation:
Given information:
Bring lunch : 46 males, 254 females
Buy lunch : 176 males, 264 females
Total number of peoples is
Total number of males is
The probability of male is
Since probability of males is 0.3, therefore options A and C are incorrect.
Total number of persons who buys lunch is
The probability of persons who buys lunch is
We need to find the probability of P(male | buys lunch).
According to the conditional probability, we get
P(male | buys lunch)
P(male | buys lunch)
P(male | buys lunch)
Therefore the correct option is 4.